2C73 User's Guide
Contents
1. OSCILLOSCOPE TRIGGER ON CH 1 RISING EDGE Test setup step two Activate the 1830 sensor and ADI using a camera flash gun positioned directly in front of the sensor window and check that the 1S30 trip LED activates The 10 30us wide pulse generated by the ADI should trigger the storage CRO Using the CRO time base measure the time taken for the 1S20 output contact to operate Repeat this test for each output contact and sensor input combination to verify the speed of operation of the complete arc fault protection system AT RNEER ON ww K CERTIFIED QUALITY MANAGEMENT SYSTEM 30300 Visit www rmspl com au for the latest product information Due to RMS continuous product improvement policy this information is subject to change without notice User_Guide 5 Iss D 29 01 08 oROtectO amp CONTR l OPERATE SPEED RESULTS Pr Ft TF TF yT T P rrF CRO trace showing nominal operation time of the trip contacts at 7ms First contact touch at 6 25ms and fully closed by 7 25ms Operation in lt 10ms is considered acceptable as current check relay operate time is 15ms FAULT DIAGNOSIS Step Two Step Three Comments System operational Suspect 1S30 Sensor Repeat test with another 1830 Suspect 1820 Arc Fault Monitor Repeat test with another 1S30 AT RNEER ON ww K CERTIFIED QUALITY Visit2. ON Latching until manually reset OFF Automatic self reset Extinguish after 4 hours Will also reset contacts set for latching function Switch 3 Independent arc trip output contacts ON Arc Sensor 1 activates trip output contact 1 amp Arc sensor 2 or 3 activates trip output contact 2 OFF Arc Sensor 1 2 or 3 activate both trip outputs Figure 7 1S20 rear view showing configuration switches Switch 4 Arc fault trip output contact reset ON Latching Reset with trip LED OFF Self reset after 2s Switch 5 Arc sensor 3 ON Arc Sensor 3 fitted OFF Arc Sensor 3 not fitted AT QnA TOY we K CERTIFIED QUALITY Visit www rmspl cCom aU forthe latest product information a ee Due to RMS continuous product improvement policy this information is subject to change without notice 1S20 Issue R 28 02 2010 5 11 Wiring Diagrams N O ARC FAULT TRIP CONTACT 2 N O ARC FAULT TRIP CONTACT 1 NIC FAIL ALARM P U WHEN HEALTHY ARC SENSOR 3 ARC 2 amp 3 ARC SENSOR 2 COMMON ARC SENSOR 1 DC AUXILIARY SUPPLY Figure 8 1S20 Socket Terminal Layout viewed from the front when un plugged from the main housing Note Always wire Arc Sensor 1 Arc Sensors 2 amp 3 are optional P rotection O_O VX O_O gt gt Arc3 q Arc2 D Arc
3. The arc sensor can be mounted from the outside on partition wall of the switchgear The active part of the sensor is mounted in a 10mm hole to the area in the switchgear that should be protected and fastened with a 4mm self tapping screw A Optical detector a 2x M4 protruding through self threading hole in panel mounting screws j Supplied n Switchgear 7 a Sealed cable panel stress relief 1530 shown mounted on the outside of a switchgear panel Detector oriented to look through a 10mm diameter hole into the switchgear Refer to panel cut out drawing in 1830 Technical Bulletin for details The arc sensor can alternatively be mounted completely in the protected area with the help of a Z shaped or L shaped mounting plate In open spaces such as the bus bar section arc sensors should be mounted a maximum of four meters apart In open spaces e g bus bar sections there should be an arc sensor approximately every 5 meters Due to the wide detection range of the sensors and the light reflection inside the switchgear the mounting position is not very critical SENSOR LOCATIONS AT ent R ON ww K NCS ly CERTIFIED QUALITY Visit www rmspl com au for the latest product information MANASEMENT ATSEM Due to RMS continuous product improvement policy this information is subject to change without notice 1S20 4 Iss B 29 02 08 S000 Equipment Operating Conditions The equipment should be opera
4. e e o C 1530 Under Test i 5 eo 48VDC 10K gt ett ee tet Za re wo 55 5 O D z c g zZ 1S20 Under Test Test setup step one AT RNEER ON ww K Visit www rmspl com au for the latest product information Due to RMS continuous product improvement policy this information is subject to change without notice User_Guide 5 Iss D 29 01 08 CERTIFIED QUALITY MANAGEMENT SYSTEM 30300 enoit CTION amp CONTRO STEP THREE The test described in step two is used to prove the operating performance of the 1820 Arc Fault Monitor To check the performance of the complete system the 1S30 performance must also be checked Make up an Arc Detection Interface Unit ADI and connect up to the 1S20 1S30 with a dropping resistor amp storage CRO as per the test diagram Arc Detection Test Interface Unit Q9VDC o o o x lt oe C01 VS 100n l Q01 10 30usec S T BC3 OCS B 2 LED operating oe _ Ae as sensor gt Must HAVE 35 eu 9 CLEAR LENS CND Use camera flash unit to initiate sensors e o C 15 30 Under Test gt hg 48VDC 10K gt o ett ee eet ae N N LJ a OS O C ra O YD lt lt lt i g 1S 20 Under Test
5. MINIMUM ARC DURATION The minimum arc flash duration required to guarantee operation of the Arc Fault Monitors output contacts is 1 25ms AUXILIARY SUPPLY Voltage from 1S20 Arc Fault Monitor 12V DC Power consumption lt 2 5mA CASING Rugged moulded construction to IP51 TEMPERATURE RANGE Operating 5 to 55 C Storage 25 to 75 C NAT SA og o zZ CERTIFIED QUALITY MANAGEMENT SYSTEM 1 09001 Technical Data SENSOR CONNECTIONS The 1830 is supplied with a 6m two core connection cable as standard Two core multi strand wire 2x16 0 2mm is supplied stripped amp pre tinned at the 1S20 connection end The standard 6m cable may be cut down to the desired length amp crimp ring lugs fitted for termination to the 1820 1825 or 1826 Arc Fault Monitors The 1S30 connections are not polarity sensitive Reversal of the wires on the arc monitor terminals has no effect on the performance of the 1S30 or arc detection system The cable is factory fitted to the 1830 Arc Fault Sensor using a stress relief molding to provide a sealed amp durable connection interface The cable employs thick inner amp outer insulation layers to avoid damage during installation For connection over longer distances shielded cable is recommended For distances over 20m 24 0 2 mm cable should be employed ADDITIONAL 1830 CABLE LENGTH Screened arc sensor cables may be increased by wiring additional series twisted pair
6. Part ECTION amp CONTAG rms Mechanical Configuration Great care has been taken to design a rugged cost effective amp flexible mechanical solution for the 1S20 series Arc Fault Monitor The ZA12 case MATRIX range provides a compact draw out case solution with M4 screw terminals ZA12 plastic case suitable for surface or DIN rail mounting ZA12 plastic case suitable for through hole panel mounting Surface mounting plastic mousing e 1820 surface mount type e 1520 panel mount type e 1880 arc sensor The 1S20 is configured in a ZA12 case amp the following photographs depict the general mechanical configuration Front view of panel mount version Note combined tri colour LED amp reset button QNA Tloy we K NCS ly Visit www rmspl com au for the latest product information CERTIFIED QUALITY MANAGEMENT SYSTEM Due to RMS continuous product improvement policy this information is subject to change without notice 1A54_Guide Iss B 24 07 06 500 enOvectic amp CONTRO Front view of surface mount version Note separate tri colour LED reset button type number detail amp retention screws B Ki 57 Rear view of 1820 Arc Fault module Rear view of panel mount version terminal base Note wiring diagram amp configuration switches Note type number detail amp retention screws Pee Ny CERTIFIED QUALITY Visit www rmspl com au for the latest product information MANAGEMENT SYSTEM
7. Explanation of Symbols amp Labels The meaning of symbols and labels which may be used on the equipment or in the product documentation is given below Caution refer to product information Caution risk of electric shock AN OOOO Functional earth terminal Note this symbol may also be used for a protective safety earth terminal if that terminal is part of a terminal block or sub assembly eg power supply AT RNE ON amp eZ NCS CERTIFIED QUALITY Visit www rmspl com au for the latest product information MANAGENMEWI SIS TEM Due to RMS continuous product improvement policy this information is subject to change without notice 1S20 4 Iss B 29 02 08 1509001 Unpacking Upon receipt inspect the outer shipping carton or pallet for obvious damage Remove the individually packaged relays and inspect the cartons for obvious damage To prevent the possible ingress of dirt the carton should not be opened until the relay is to be used Refer to the following images for unpacking the relay r ATY S Inner packing carton showing front label detailing the customer name order number relay part number amp description the relay job number amp packing date Storage amp Handling lf damage has been sustained a claim should immediately be made against the carrier also inform Relay Monitoring Systems Pty Ltd and the nearest RMS agent When not required for immediate use the rela
8. eRovectO amp CONTRO Features E Compact economic design E Simple panel mounting for retrofit applications m Two or three arc sensor inputs E Two high speed tripping duty arc sense output contacts E Push button reset E Continuous arc sensor supervision E Integrated self supervision E Fail alarm contact m 20 60 amp 36 150V DC auxiliary versions Introduction Medium voltage switchgear is a key element in the power supply chain Existing protection systems operate effectively under most circumstances but they are too slow to handle arcing short circuits Arcing faults can occur as a result of insulation breakdown due to equipment age amp or poor maintenance The degree of damage caused by arcing depends principally on the duration of the arc If an arc lasts only 100ms the switchgear needs to be checked amp the insulation resistance measured before power can be re established With a 200ms arc the power supply will be interrupted the switchgear must be checked power is re established only after minor repairs In the event of a 500ms arc the supply is interrupted metal parts of the switchgear are destroyed amp poisonous gases are emitted A 1s arc destroys most of the switchgear amp may cause a fire injury to personnel amp damage to property The over current caused by an arc is due to its resistance lower than the over current caused by a metallic short circuit
9. Different relay versions are required to cater for varying customer requirements such as auxiliary voltage range I O configuration case style relay functionality etc The product ordering code described in the Technical Bulletin is used to generate a unique version of the relay specification amp is called a type number The type number takes the form 1S20Kxx where the Kxx is the K or version number Refer to www rmspl com au handbook PARTA3 pdf for a complete description of the RMS K number system Each 1820 version has a specific Test Manual which provides details on the unique attributes of the relay Each Test Manual includes the following information e Test Certificate e Specific technical variations from the standard model if applicable e Test amp calibration record e Wiring diagram A Test Manual is provided with each relay shipped If you require a copy of the Test Manual for an RMS product the following options are available e Check the RMS web site at Wwww rmspl com au Ssearch aspo e RMS CD catalogue select List all Product Test Manuals under Technical Library e Contact RMS or a representative amp request a hard copy or PDF by email AT RNEER ON ww K Visit www rmspl com au for the latest product information Due to RMS continuous product improvement policy this information is subject to change without notice 1A54 Guide Iss B 24 07 06 CERTIFIED QUALITY MANAGEMENT SYSTEM 30300
10. 000 Lux for white light at normal incidence to the detector window s as depicted in figure 4 E Font Light Detector Source 1S30 A amp B Light Rear Source amp Detector models 1S30 B models only ij For the 1S30 A single detector version the front detector only is fitted In this configuration the 1S30 A will be insensitive to white light incident on the rear surface of the case up to a level of 200 000 Lux As the illuminace of diffuse ambient sunlight falls in the range 5 000 to 10 000 Lux this will not normally be sufficient to trigger the 1S30 sensor The luminous intensity from the sun at noon at the equator however is 100 000 Lux which will be sufficient to trigger the 1530 sensor so measures should be made to avoid this situation Figure 4 Direct sunlight incident on the rear of the 1S30 A model sensor will not cause it to pick up This attribute provides a significant safety margin to avoid nuisance tripping when the option of mounting the sensor externally on switchgear as depicted in figure 6 is employed DETECTOR DIRECTIONAL CHARACTERISTICS Detector sensitivity falls to 40 of the nominal level at inclination angles up to 70 degrees from the normal for white light DETECTOR SPECTRAL RESPONSE 100 90 80 70 Relative Sensitivity 60 50 600 700 800 900 1 000 1 100 1 200 Wavlength nm Figure 5 Arc detector spectral response Due to the rel
11. Due to RMS continuous product improvement policy this information is subject to change without notice 1S20 Issue R 28 02 2010 3 11 OPERATION INDICATOR A single tri colour LED is integrated into the front panel reset push button to provide the following status indications System healthy C Green solid Sm 1S30 Power up test OK C Flash green 3 times for O Solid red for 2s followed by Arc fault trip 4 1S30 Arc Sensor 1 service C Orange solid ane 1S30 Arc Sensor 2 or 3 service Orange flashing 7 1S30 Arc Sensor continuous pick up Alternate orange amp red ARC SENSOR CIRCUIT SUPERVISION The 1830 Arc Sensor is the heart of the system amp supervision of circuit continuity is critical for correct operation To monitor the integrity of the wiring between the 1S30 arc sensor amp 1820 Arc Monitor a continuous 2mA supervision current flows between the units The 1820 alarm contact will drop out after a 1s time delay if it fails to detect this current Where a fault is detected on the Arc Sensor 1 circuit the front panel LED will give a solid orange indication Where a fault is detected on Arc Sensor 2 or 3 circuits the front panel LED will give a flashing orange indication Where a fault is detected on Arc Sensor 1 amp 2 or 1 amp 3 circuits the front panel LED will give a solid orange indication CERTIFIED QUALITY MANAGEMENT SYSTEM 1509001 ND O Alternate red amp green until
12. LABEL ON MODULE SIDE FOR PANEL MOUNT VERSION REMOVE FOR REAR CABLE ENTRY OPTION REMOVE FOR TWO M4 OR 4BA MOUNTING SCREWS Figure 11 Surface mount version side view AT RNAI OY we CERTIFIED QUALITY MANAGEMENT SYSTEM 0 9 00 1 Mounting Options PANEL MOUNT VERSION This version is suitable for mounting on the front panel of a cubicle or door This is achieved using a 31mm diameter hole in the panel adjacent to the protection relay as depicted in figures 12 13 amp 14 This version may also be surface mounted by reversing the terminal block retaining screws It may also be DIN rail mounting when the optional 290407157 DIN Rail Mounting Kit is fitted Refer figures 15 16 amp 19 Figure 12 1S20 through hole panel mount version SLIDE OUT CABLE RELAY PANEL ENTRY POINTS 3mm THICK 3 ON ONE SIDE MAXIMIUM 1 AT EACH END FRONT PANEL LABEL Supplied with module Ge 1820 Arc Fault Monitor e RETENTION SHROUD TOP amp BOTTOM REAR TERMINAL BLOCK RETAINING SCREWS RESET TEST THESE MAY BE UNSCREWED amp REVERSED TO FIT FROM THE FRONT OF THE 1820 MODULE TO ALLOW SURFACE MOUNTING Use double sided tape supplied Top amp bottom positions Figure 13 Panel mount version side view Visit www rmspl com au for the latest product information Due to RMS continuous product improvement policy this information is subject to change without notice 1S20 Iss
13. SCREENED cable provided it does not exceed 5 ohms and 30nF loop impedance ARC SENSOR SHIELD WIRE EARTH CONNECTION The arc sensor shield wire s should be connected to ground as detailed in figures 14 to 16 DIRECT MOUNTED EARTH TERMINAL EK10 35 ARG FAULT MONITOR NONE DC Fail RED Arc Foult Trp Service Figure 15 1S20 panel mount earth connection detail Figure 16 M Series case type earth connection detail visit WWW rmspl COM aU forthe latest product information Due to RMS continuous product improvement policy this information is subject to change without notice 1S30 Issue G 18 07 11 4 5 eRovection amp CONTRO Ordering Information The following accessories are available separately Generate the required ordering code as follows e g 1S30 A 220 100 500 1530 Flush mount reinforcing plate 1830 EE Detectors A Single through hole panel detector B Dual detectors 2 SPECIFY OPTIONS Only if required F Flush mount reinforcing plate required S 6m shielded cable required L 20m shielded cable required 20 0 OG i 18 6 iy
14. The over current caused by the arc may also be lower than the protection start current when energising circuits or starting large motors The consequence of these conditions is that a protection system based solely on over current detection cannot effectively discriminate between normal system currents amp an arc fault condition e For moderate arc fault currents the trip time of the over current IDMT stage will be too slow e For very low arc fault currents the instantaneous trip stage of a standard over current relay cannot be set low enough AT QNA TOY we K CERTIFIED QUALITY MANAGEMENT SYSTEM 1509001 1520 Arc Fault Monitor Relay Technical Bulletin HEMA go Oh 1S30A S N 123456 1830 Sensors front amp back 1520 depicted in panel mount case configuration ARC Fault Protection Arc fault protection is a relatively new technique employed for the fast clearance of arcing faults on BUS bars amp within metal clad switchgear amp associated cable boxes The arc is detected using an optical sensor amp the signal input to a protection device which also monitors the load current on the system A trip signal can be achieved in less than 10ms using arc detection only or within 15ms when using overcurrent check This is considerably faster than a traditional IDMT overcurrent relay amp provides additional protection from the onset of arcing faults with relatively low fault currents Ma
15. by 7 25ms Operation in lt 10ms is considered acceptable as current check relay operate time is 15ms ARC SENSOR INPUTS Two or three independent arc sensor inputs type 1830 or similar Figure 20 1530 Arc Fault Sensor Refer 1S30 Technical Bulletin MINIMUM ARC DURATION The minimum arc flash duration required to guarantee operation of the output contacts is 1 25ms TRIP CONTACT RESET TIME Once operated the trip output contacts reset as per the configuration switch 4 setting MANUAL RESET Press front button or interrupt power supply to reset LED s AT QNA OY we K CERTIFIED QUALITY MANAGEMENT SYSTEM 1509001 Technical Data OUTPUT CONTACTS Arc fault trip contacts 2 N O Fail alarm 1 N C for the power supply CPU fail Normally picked up amp drops out to signal an alarm condition OUTPUT CONTACT RATINGS Carry continuously 5A AC or DC Make amp carry 0 5s 20A AC or DC L R lt 40ms amp V lt 300V 0 2s 30A AC or DC AC resistive 1 250VA AC inductive 250VA PF lt 0 4 DC resistive 75W DC inductive 20 R 40ms 50W L R lt 10ms Minimum number of operations 10 at maximum load Minimum recommended load 0 5W limit 10mA 5V TRANSIENT OVERVOLTAGE IEC60255 5 Between all terminals amp earth 5kV 1 2 50us 0 5J Between independent circuits without 5KV 1 2 50us 0 5J damage or flashover IEC60255 0 2 Break capacity lt 5A amp V lt 300V INSULATION COORDINA
16. fault Overcurrent relay Must be wired Fail alarm Control Arc fault trip alarm signal to protection relay status input for comms o CB Aux Switch Trip Coil 52 4a d 8 e Ce 1820 application diagram Circuits shown in de energised condition NATON Figure 9 1S20 Wiring application diagram lt zZ CERTIFIED QUALITY visit WWW rmspl comM aU for the latest product information MANAGEMENT SYSTEM Due to RMS continuous product improvement policy this information is subject to change without notice 1S20 lssue R 28 02 2010 6 11 1509001 MOUNTING OPIONS The 1S20 is available in two versions 1 A surface mount version which has a separate reset button amp LED indicator on the front panel The advantage of this version is the lower cost amp where front panel space in limited 2 A panel mount version which has a combined reset button amp LED indication The advantage of this version is that it can be either panel or surface mounted SURFACE MOUNT VERSION This version is suitable for location in the rear of a cubicle It may be surface mounted as shown in figures 10 amp 17 It may also be DIN rail mounting when the optional 290407157 DIN Rail Mounting Kit is fitted Refer figures 11 18 amp 19 Figure 10 1S20 surface mount version front panel SLIDE OUT CABLE ENTRY POINTS 3 ON ONE SIDE 1 AT EACH END TOP amp BOTTOM REAR TERMINAL BLOCK RETAINING SCREWS SERIAL NO amp RATING
17. information is subject to change without notice 1S20 Issue R 28 02 2010 10 11 Ordering Information Generate the required ordering code as follows e g 1S20 CAB CONFIGURATION CODE Optional specification The configuration code can be set in the field by withdrawing the relay module amp following the instructions on the side plate label 1520 Arc Fault Monitor Relay The configuration code may be specified at time of order so that the relay will be shipped from the factory pre set to meet customer requirements e g CONFIG 01011 If a configuration code is not specified the factory default will be 20 60V DC set as indicated below i e CONFIG 11111 36 150V DC MOUNTING Configuration Specify factory Switches AUXILIARY SUPPLY RANGE Panel mount or surface mount Configuration Surface mount only CONFIG FEM arc sensor 2 1 2 3 4 5 SENSORS Two arc sensor inputs Default Three arc sensor inputs Boon 1 ON Arc sensor 2 fitted Default Note Where DIN rail mounting is required specify DIN Rail O OFF Arc sensor 2 not fitted Mounting Kit P N 290407157 WA arc FAULT TRIP INDICATION RESET PESA POWER SUPPLY MODULE 1 ON Latched until manually reset Default Use the PSSR A24 DIN rail mount module to power a single 1820 O OFF Auto reset after 4 hours from an 85 164V AC auxiliary source ED INDEPENDENT ARC TRIP OUTPUTS 1830 ARC FAULT SENSOR Refer to the 1830 Technical Bulletin for ordering information on the 1 ON
18. is subject to change without notice 1S20 Issue R 28 02 2010 8 11 Surface Mount Version 2 HOLES M4 6 0 CLEARANCE 1820 ARC FAULT MONITOR NONE DC Fail RED Arc Fault Trip ice r 2 or 3 Service ORANGE RED Continuous Sensor P U AUX 36 150VDC 85 0 S N 888888 FRONT VIEW Figure 17 Surface mounting detail RESET AUX 36 150VDC S N 888888 Figure 18 DIN rail mounting detail DIN RAIL MOUNTING KIT Kit number 290 407 157 Note orientation of terminal block Drill 2 x 4 2mm holes Fit M4 x 8 screws amp nuts p PROTECTION amp CONTRO 901 500 040 rms Iss A 20 11 09 Figure 19 DIN rail clip fitting detail Specify DIN Rail Mounting Kit P N 290407157 AT QnA toy we K CERTIFIED QUALITY Visit WWW rmspl com au for the latest product information ee Due to RMS continuous product improvement policy this information is subject to change without notice 1S20 Issue R 28 02 2010 9 11 AUXILIARY SUPPLY BURDEN At 110V DC Monitoring mode Less than 4W Arc fault detected Less than 10W for 2s AUXILIARY SUPPLY 20 60V DC 36 150V DC OPERATE TIME Arc fault trip contacts guaranteed to pick up in less than 10ms including bounce Typical operate time is 7ms CRO trace showing nominal operation time of the trip contacts at 7ms First contact touch at 6 25ms and fully closed
19. reset fe fo Operation ARC SENSOR FUNCTION The 1S30 is an optical sensor that responds to the flash of light emitted during the incidence of an arcing fault Onset of the light flash amp detection by the 1S30 occurs in a few ms When an arc is detected the resistance presented by the 1S30 drops to a level where the current flow increases to approximately 20mA This increased current flow is instantaneously detected by the 1520 amp its trip output contacts closed Refer to the 1830 Technical Bulletin for further details ARC FAULT TRIPPING USING CURRENT CHECK Fast operation of a tripping scheme usually results in reduced system security The arc detection method can however combine the 1S20 optical detection technique with a traditional overcurrent method to maximize system security particularly for BUS bar protection schemes Both conditions must coexist for the trip condition to be met as depicted in figure 6 CB ARC FAULT SENSOR MONITOR 3 Pole OC EF 7 ia RO z He gt Dv O TI gt T 4 D U S z J 5 m i g Figure 6 Key components required to implement an Arc Fault Protection scheme with an overcurrent check stage to enhance system security The application examples in figures 1 to 5 utilize this concept for enhanced system security in that both the 1520 AND the OC 50 starter contact must be picked up for a CB trip signal to be initiated As the ar
20. supplied with the unit positioned amp the retention shroud fitted Refer Figure 12 amp 13 1S30 optical arc sensors are fitted in the cable termination box amp CT chamber as depicted in figure 2 The overcurrent relay starter contact may optionally be wired in series with the arc fault detection trip output contact as depicted in figure 6 The resulting AND function trip output is wired to trip the breaker in 15ms in the event that an arc fault is detected while the overcurrent start element is picked up The second arc trip amp fail alarm contacts may be employed for interface to a SCADA system for fault reporting NEW SWITCHGEAR APPLICATIONS For new switchgear installations a modern numeric feeder protection relay is likely to be employed which will have numerous programming amp configuration options The basic concept is the same as for the existing switchgear application described above except that the additional features amp flexibility of modern feeder protection relay allows improved system integration This may be achieved by using the second arc trip output contact to interface to a programmable status input on the feeder protection relay Depending on the model of protection relay being used this input may be programmed to provide an alarm message on the HMI time stamped event record available via its communications link Where this level of system integration is employed the 1S20 does not need to be moun
21. the 1530 as depicted below Flush mount reinforcing plate Me N 2x M4 gt self threading mounting screws F Supplied iS Figure 8 Flush mount reinforcing plate 1 2mm zinc plated mild steel NA7 o lt Vg CERTIFIED QUALITY MANAGEMENT SYSTEM 00 00 11 Mounting Options DUAL DETECTOR VERSION The dual detector version can be panel mounted to monitor two adjacent switchgear compartments simultaneously This feature can be used to reduce the total cost for sensors or to increase the monitoring coverage for each 1S20 Arc Fault Monitor unit m Optical detector window facing away Optical detector A _ from compartment protruding through lt 7 divider compartment divider into adjacent switchgear chamber w Internal partition between switchgear i compartments Figure 9 1530 shown mounted on the inside of a switchgear panel This configuration combines the functions described in Figures 6 amp 7 with the application of a single dual detector arc fault sensor PANEL MOUNT CUT OUT DETAIL 23 8 54 0 77 0 Hole in panel to allow detector to look into vA switchgear 2x03 71 chamber Figure 10 Flush mounting detail RIGHT ANGLE MOUNTING OFF A SURFACE A right angle mounting bracket may be fabricated using the panel cut out detail in figure 10 Single amp dual det
22. 01 08 eRoit Speed of Operation Performance Testing The high speed of operation of the arc fault detection method is an essential characteristic of this protection technique Testing the operating performance of the 1820 Arc Fault Monitor amp 1S30 Arc Fault Sensors may be carried out using the as follows STEP ONE Connect up the 1S20 and 1S30 as per the standard wiring diagram Activate the 1830 sensor using a camera flash gun positioned directly in front of the sensor window and check that the 1S30 trip LED activates The optical output power of the flash gun will determine how close it must be positioned A flash gun with sufficient white light intensity and duration must be employed gt 20 000 Lux and 2ms is recommended STEP TWO Connect up the 1820 1S30 with a dropping resistor amp storage CRO as per the test diagram Activate the 1S30 sensor using a camera flash gun positioned directly in front of the sensor window and check that the 1S30 trip LED activates The operating pulse generated by the 1S30 output should trigger the storage CRO Using the CRO time base measure the time taken for the 1S20 output contact to operate Repeat this test for each output contact and sensor input combination ae TRIGGER ON CH 1 RISING EDGE Use camera flash unit to initiate sensors
23. Arc sensor 1 operates trip output 1 Arc sensor 2 operates trip output 2 Default PMO SENSOR O OFF Arc Sensor 1 or 2 operate both trip outputs WB trip output CONTACT RESET 1 ON Latching Resets with trip LED Default O OFF Self reset after 2s BEM arc sensors 1 ON Arc sensor 3 fitted Default 0 OFF Arc sensor 3 not fitted AT O lt zZ CERTIFIED QUALITY visit WWW rmspl comM aU for the latest product information ee Due to RMS continuous product improvement policy this information is subject to change without notice 1S20 Issue R 28 02 2010 11 11 onovection amp CONTRO Features E Compact rugged design E One or two optical detectors E High speed arc detection m Heavy duty 6m termination cable E Optional 20m amp screened cables E Simple flush panel mounting outside or inside switchgear compartment E Integrated sensor circuit Supervision E Very low sensitivity to ambient light levels to avoid nuisance tripping even in direct sunlight E Sealed module for harsh environments E Optional metal reinforced mounting shield Application Arc fault protection is a relatively new technique employed for the fast clearance of arcing faults on BUS bars amp within metal clad switchgear amp associated cable boxes The arc is detected using an optical sensor amp the signal input to a protection device which also monitors the load current on the system A trip signal can be achieved in less t
24. Due to RMS continuous product improvement policy this information is subject to change without notice 1A54_Guide Iss B 24 07 06 30800t 1S20 Arc Fault Monitor shown un plugged from terminal base Note gold PCB contacts Internal view of panel mount version PCB Note combined tri colour LED amp reset button AT RNEER ON ww K CERTIFIED QUALITY MANAGEMENT SYSTEM S 0 I I Internal view of surface mount PCB Note separate tri colour LED amp reset button Visit www rmspl com au for the latest product information Due to RMS continuous product improvement policy this information is subject to change without notice 1A54 Guide Iss B 24 07 06 eRotectO amp C ONTRO Part Technical Bulletin The detailed technical attributes functional description amp performance specifications for the 1S20 are described in the attached Technical Bulletin For the most up to date version go to www rmspl com au handbook 1S20 htm For any specific attributes of a particular version refer to the Test Manual for that type K number The order of precedence for technical information is as follows e Test Manual e Technical Bulletin e User Guide AT RNEER ON ww K CERTIFIED QUALITY Visit www rmspl com au for the latest product information PEERS eee Due to RMS continuous product improvement policy this information is subject to change without notice 1A54_Guide Iss B 24 07 06 0 10
25. LD N DZ q pa L oO 2 0 Ss ks Gl g e2 N ar 0 Z 00 p o fone p I I T l LO pe Oo E O Y Optional second optical detector looks forward through front label window Figure 17 1530 Arc Fault Sensor dimensions AT QNA OY A K CERTIFIED QUALITY visit WWW rmspl COM aQU forthe latest product information pied ae Due to RMS continuous product improvement policy this information is subject to change without notice 1S30 Issue G 18 07 11 5 5 enoreclio amp C ONTRO Part Installation Handling of Electronic Equipment A person s normal movements can easily generate electrostatic potentials of several thousand volts Discharge of these voltages into semiconductor devices when handling electronic circuits can cause serious damage which often may not be immediately apparent but the reliability of the circuit will have been reduced The electronic circuits of Relay Monitoring Systems Pty Ltd products are immune to the relevant levels of electrostatic discharge when housed in the case Do not expose them to the risk of damage by withdrawing modules unnecessarily Each module incorporates the highest practicable protection for its semiconductor devices However if it becomes necessary to withdraw a module the following precautions should be taken to preserve the high reliability and long life for which the equipment has been designed an
26. T SYSTEM Due to RMS continuous product improvement policy this information is subject to change without notice 1S20 4 Iss B 29 02 08 S000 DIN Rail or Surface Mounting the 1820 Arc Fault Monitor 1S30K1 CBB ARC FAULT MONITOR NONE DC Fail RED Arc Fault Trip GREEN System Functioning ORANGE SOLID Sensor 1 Service ORANGE FLASH Sensor 2 or 3 Service ORANGE RED Continuous Sensor P U RESET TEST AUX 36 150V DC www rmspl com au SLIDE OUT CABLE ENTRY POINTS 3 ON ONE SIDE 1 AT EACH END OPTIONAL DIN RAIL CLIP a rms P N H01180001B DIN rail Protection mount version amp Control www rmsp com au DIN RAIL So 24mm gamm D a o a E A RELEASE LEVER SIDE VIEW AT RNEER ON ww K CERTIFIED QUALITY Visit www rmspl com au for the latest product information MANAGEMENT Sy oTEM Due to RMS continuous product improvement policy this information is subject to change without notice 1S20 4 Iss B 29 02 08 S000 oROTecTO amp CONTRO 1S20 Configuration Switches Four configuration switches are accessible to the user by first unplugging the electronic module from the terminal base 1 ARC SENSOR 2 ON OFF 2 AUTOTRIPLED RESET ON OFF 3 INDEPENDENT ARC TRIP ON OFF 4 TRIP 2 LATCH ON OFF 5 ARC SENSOR 3 ON OFF Verify correct setting of configuration switches with reference to the Technical Bulletin Equipment Connections Personnel undertaking installation commissionin
27. TION Between all terminals amp earth Between independent circuits Across normally open contacts IEC60255 5 2 0kV RMS for 1 minute 2 0kV RMS for 1 minute 1 0kV RMS for 1 minute AUXILIARY SUPPLY Allowable breaks dips in supply Collapse to zero from nominal voltage HIGH FREQUENCY DISTURBANCE IEC60255 22 1 CLASS Ill 2 5kV 1MHz common mode 1 0kV 1MHz differential mode IEC60255 11 lt 20ms No mal operation ELECTROSTATIC DISCHARGE 6kV contact discharge IEC60255 22 2 CLASS III No mal operation RADIO FREQUENCY INTERFERENCE 10V m 80 TO 1 000MHz IEC60255 22 3 No mal operation FAST TRANSIENT 4kV 5 50ns 100KHz repetitive IEC60255 22 4 No mal operation CONDUCTED RFI 10V 0 15 to 80MHz TEMPERATURE RANGE IEC68 2 1 2 Operating 5 to 55 C Storage 25 to 75 C HUMIDITY 40 C amp 95 RH non condensing CASE ZA12 flush or DIN rail mount type 12 M4 screw terminals Plug in module to facilitate easy wiring amp fast changeover AC AUXILIARY SUPPLIES PS5R A24 MODULE The Idec PS5R DIN rail mount power supply is suitable for providing the 24V DC auxiliary supplied required for operating the 1S20 Arc Fault Monitor from an AC auxiliary Vx input 85 to 264V AC Power output 7 5W continuous IEC60255 22 6 No mal operation IEC68 2 78 Height 75 0 mm Width 45 0 mm Depth 70 0 mm vist WWW rmspl comM aU forthe latest product information Due to RMS continuous product improvement policy this
28. atively high sensitivity of the detector to IR wavelengths the type of light source employed for sensitivity testing will have a major effect on the results obtained Sensitivity testing should therefore be conducted using a 50 75W halogen lamp with an integrated aluminum reflector visit WWW rmspl COM aU forthe latest product information Due to RMS continuous product improvement policy this information is subject to change without notice 1S30 Issue G 18 07 11 2 5 FLUSH PANEL MOUNTING The 1830 is suitable for flush panel mounting in a number of configurations uy 3 Pad aS Optical detector 2x M4 protruding through gt self threading hole in panel ee mounting screws Supplied in k Sealed cable stress relief panel bil Figure 6 1830 shown mounted on the outside of a switchgear panel Detector oriented to look through a hole into the switchgear Mey Optical detector Y EN 2 x M4 a ay self threading rom pane mounting screws Pa Supplied ia Figure 7 1530 shown mounted on the inside of a switchgear panel Detector oriented to look out into the switchgear compartment FLUSH MOUNT REINFORCING PLATE When mounting the 1530 on the outside of a switchgear cubicle as depicted in figure 6 the hole required in the panel may degrade the short circuit rating If this is considered to be an issue then a reinforcing plate may be fitted over
29. c fault trip contact picks up considerably faster than the overcurrent relay starter element the CB trip time will be dictated by the overcurrent relay performance LOW CURRENT ARCING FAULTS Arcing faults can occur at low current levels amp it is possible for the over current starter element to be set above this level To avoid this problem amp obtain very fast clearance lt 10ms of an arc fault the 1820 arc fault trip contact may be wired directly to the breaker operate coil It should be noted that this method may lead to reduced system security ARC DETECTION RESET TIME Effect of multiple arc trips A delay of 2s is required to reset the 1520 after an initial arc sensor trip Subsequent arc detection will cause the trip output contacts to re operate amp reset the time delays described under Configuration Switch Settings INDEPENDENT TRIP OUTPUT CONTACTS The 1820 may be set using configuration switch 3 for both trip output contacts to pick up when an arc is detected by any sensor input Alternatively arc sensor 1 can be linked to trip contact 1 amp arc sensor 2 amp 3 if fitted to trip contact 2 This function may be applied where an arc fault detected in the cable box is directed to trip the feeder circuit breaker while an arc fault in the BUS chamber is to be directed to trip the BUS ARC SENSOR CONTINUOSLY PICKED UP High ambient light levels may cause a 1S30 to be continuously picked up This condition could occur fo
30. d manufactured 1 Before removing a module ensure that you are at the same electrostatic potential as the equipment by touching the case 2 Handle the module by its front plate frame or edges of the printed circuit board 3 Avoid touching the electronic components printed circuit track or connectors 4 Do not pass the module to any person without first ensuring that you are both at the same electrostatic potential Shaking hands achieves equipotential 5 Place the module on an antistatic surface or on a conducting surface which is at the same potential as yourself 6 Store or transport the module in a conductive bag lf you are making measurements on the internal electronic circuitry of an equipment in service it is preferable that you are earthed to the case with a conductive wrist strap Wrist straps should have a resistance to ground between 500k 10M ohms If a wrist strap is not available you should maintain regular contact with the case to prevent the build up of static Instrumentation which may be used for making measurements should be earthed to the case whenever possible AT RNEER ON Ey Ay NCS CERTIFIED QUALITY Visit www rmspl com au for the latest product information MANAGEMENT a 1STEN Due to RMS continuous product improvement policy this information is subject to change without notice 1S20 4 lssB 29 02 08 1509001 enorection amp CONTRO rms Safety Section
31. de in Australia Arguably the greatest risk of arc fault damage exists at the CB cable termination amp in the CB chamber itself due to the slow clearance times of the IDMT feeder protection The CB cable termination is particularly at risk to ingress of moisture amp rodent damage The problem of arc faults is most prevalent in older metal clad switchgear which already has operational protection systems The 1820 Arc Fault Monitor has therefore been designed for the following applications EXISTING SWITCHGEAR Where a requirement exists to retrofit arc fault protection to metal clad switchgear utilizing the existing overcurrent protection relay NEW SWITCHGEAR Where a requirement exists to install arc fault protection to new switchgear for integration with the customer preferred overcurrent feeder protection relay vist WWW rmspl COM AU forthe latest product information Due to RMS continuous product improvement policy this information is subject to change without notice 1S20 Issue R 28 02 2010 1 11 SWITCHGEAR ARC PROTECTION Risk of arc fault damage exists at the CB cable termination amp in the CB chamber itself The CB cable termination is particularly at risk to ingress of moisture amp rodent damage One two or three arc sensors may be connected to the 1S20 Arc Fault Monitors as depicted in the single line application diagrams at right Figures 1 amp 2 show the trip signals being used to trip the feeder circuit b
32. ector models may be mounted in this manner as depicted below Single Dual optical detector optical detector oy w Optical detector window facing away i __ from right angle mounting bracket w m Right angle mounting _ 4s bracket Figure 11 Right angle mounting off a surface Mount off floor or walls within switchgear BUS bar chamber visit WWW rmspl COM aU forthe latest product information Due to RMS continuous product improvement policy this information is subject to change without notice 1S30 Issue G 18 07 11 3 5 ARC FAULT PROTECTION SCHEME Refer to the 1S20 Technical Bulletin for further details ARC FAULT OVER CURRENT RELAY CB 3 Pole OC EF SENSOR MONITOR a aE Ee A a l x n f a a I ARC FAULT TRIP INITIATE S Figure 12 Key components required to implement an Arc Fault Protection scheme with an overcurrent check stage to enhance system security ARC PROTECTION SCHEME OPERATE TIME The total time required for detection of the arc flash to closure of the 1S20 Arc Fault Monitor trip contacts is less than 10ms including bounce Typical operate time is 7 to 8ms E f j T Figure 13 CRO trace showing nominal operation time of the trip contacts at 7ms First contact touch at 6 25ms and fully closed by 7 25ms Operation in lt 10ms is considered acceptable as current check relay operate time is 15ms
33. f the detector is positioned to This permits convenient mounting on the outside of the panel with the detector window protruding a hole in the panel Figure 1 i DUAL DETECTOR PACKAGE Figure 2 depicts the 1S30 with dual optical detectors The two optical detectors face in opposite directions to provide arc detection coverage in both directions This version is particularly useful when mounted in a BUS chamber or barrier between adjacent switchgear chambers The main benefits are reduced cost compared to two separate sensors amp use of only one input channel on the 1820 Arc Fault Monitor Figure 2 DETECTOR RANGE A detection range along the 100 relative sensitivity curve shown in figure 3 is approximately 3m Single detector versions therefore need to be placed at a maximum spacing of 5 6m The dual detector versions may be placed at a maximum spacing of 8 10m to provide adequate detection overlap In switchgear the light caused by the arc is reflected from the walls amp therefore the mounting of the sensor is not critical While the high intensity flash caused by an electrical arc will be reflected within the metal clad switchgear it is recommended that one or more sensors be mounted in each enclosed switchgear compartment if il i Figure 3 AT QNA OY A K CERTIFIED QUALITY MANAGEMENT SYSTEM l 0 900 11 Detector Characteristics OPTICAL SENSITIVITY 10
34. g or servicing work on this equipment should be aware of the correct working procedures to ensure safety The product documentation should be consulted before installing commissioning or servicing the equipment Terminals exposed during installation commissioning and maintenance may present hazardous voltage unless the equipment is electrically isolated lf there is unlocked access to the rear of the equipment care should be taken by all personnel to avoid electric shock or energy hazards Voltage and current connections should be made using insulated crimp terminations to ensure that terminal block insulation requirements are maintained for safety To ensure that wires are correctly terminated the correct crimp terminal and tool for the wire size should be used Before energising the equipment it must be earthed using the protective earth terminal or the appropriate termination of the supply plug in the case of plug connected equipment Omitting or disconnecting the equipment earth may cause a safety hazard The recommended minimum earth wire size is 2 5mm unless otherwise stated in the technical data section of the product documentation Before energising the equipment the following should be checked 1 Voltage rating and polarity 2 Integrity of connections 3 Protective fuse rating AT RNEER ON x Zz NCS CERTIFIED QUALITY Visit www rmspl com au for the latest product information MBNASENENT Seren Due to RMS con
35. han 10ms using arc detection RMS manufactures a protection class arc fault optical sensor amp monitoring system suitable for both low amp medium voltage switchgear and BUS bar applications 1S20 3 sensor 2 zone Arc Fault Monitor 1825 8 sensor 4 zone Arc Fault Monitor 1826 15825 with integrated current check 1 30 Optical Arc Fault Sensor While the high intensity flash caused by an electrical arc will be reflected within the metal clad switchgear it is recommended that one or more sensors be mounted in each enclosed switchgear compartment For BUS bar protection applications multiple sensors are required to achieve adequate coverage along the length of the BUS A sensor version with two optical detectors looking in opposite directions is available for this purpose Refer figure 3 for generic layout AT QNA OY A K CERTIFIED QUALITY MANAGEMENT SYSTEM l 0 900 11 1530 Optical Arc Fault Sensor Technical Bulletin PETT rme 1S30 Arc Fault Sensors Through panel mounting detector View depicted at left Front panel view of dual detector version depicted at right Description Made in Australia The 1830 is an optical sensor that responds to the flash of light emitted during the incidence of an arcing fault Onset of the light flash amp detection by the 1830 occurs in a few ms Each arc fault sensor consists of one or two silicon PIN photo diode light detectors mounted on a circui
36. ligence or any other cause Any and all such liability is disclaimed Contact Us Relay Monitoring Systems Pty Ltd 2001 2005 6 Anzed Court Mulgrave 3170 AUSTRALIA Phone 61 3 9561 0266 Fax 61 39561 0277 Email rms rmspl com au Web www rmspl com au To download a PDF version of this guide http www rmspl com au userquide 1S20 user guide pdf To download the model specific Test Manual http www rmspl com au search asp How this guide Is organised This guide is divided into five parts Part 1 Overview About this Manual Contents Test Manual Part 2 Mechanical Configuration Part 3 1S20 Arc Fault Monitor Technical Bulletin 1S30 Arc Fault Sensor Technical Bulletin Part 4 Installation Handling of Electronic Equipment Safety Unpacking Mounting the 1820 Arc Fault Monitor Mounting the 1S30 Arc Fault Sensors 1S20 Configuration Switches Equipment Connections Operating Conditions Part 5 Maintenance Mechanical Inspection Speed of Operation Performance Testing Test Intervals Defect Report Form AT RNEER ON ww K CERTIFIED QUALITY Visit www rmspl com au for the latest product information La a A Due to RMS continuous product improvement policy this information is subject to change without notice 1A54_Guide Iss B 24 07 06 pnoreclio amp CONTRO Part Test Manual This User Guide covers all 1520 relay versions amp describes the generic features amp attributes common across all versions
37. nge without notice 1S20 4 lss B 29 02 08 CERTIFIED QUALITY MANAGEMENT SYSTEM 30300 enorectlo amp CONTRO Part Maintenance Mechanical Inspection Relay Assembly Inspect the relay for obvious signs of damage or ingress of moisture or other contamination Terminal Base Isolate the relay remove the retention screws amp un plug the 1S20 module from the terminal base Care must be taken to avoid subjecting the relay element to static discharge which may damage or degrade sensitive electronic components Inspect the relay module for signs of any overheating or burn marks which may have been caused by overvoltage surge or transient conditions on the power supply output contacts or arc sensor inputs Relay Case Inspect the terminal base gold contact terminals checking insulation integrity amp tightness to the 1S20 module Inspect inside the terminal base and use a blower to remove dust Inspect the 1S20 gold terminals for worn distorted or tarnished contacts and if necessary clean the contacts using a brush dipped in a suitable substance i i i ee as as 4s agaaAnAaIaadas mar hh o e i nS Terminal Block Module plug in gold plated terminals AT eNA OY we K NCS ly CERTIFIED QUALITY Visit www rmspl com au for the latest product information pee paola aoe Due to RMS continuous product improvement policy this information is subject to change without notice User_Guide 5 Iss D 29
38. oRovectic amp CONTRO 1S20 User Guide Arc Fault Monitor relay monitoring systems pty ltd Advanced Protection Devices User Guide Test Manual 1S20 User Guide About This Manual This User Guide covers all 1S20 relays manufactured from June 2005 Earlier relays do not necessarily incorporate all the features described Our policy of continuous may means that extra features amp functionality may have been added The 1820 User Guide is designed as a generic document to describe the common operating parameters for all relays built on this platform Some relay applications are described but for specific model information the individual K number Product Test manuals should be consulted The copyright and other intellectual property rights in this document and in any model or article produced from it and including any Registered or unregistered design rights are the property of Relay Monitoring Systems Pty Ltd No part of this document shall be reproduced or modified or stored in another form in any data retrieval system without the permission of Relay Monitoring Systems Pty Ltd nor shall any model or article be reproduced from this document without consent from Relay Monitoring Systems Pty Ltd While the information and guidance given in this document is believed to be correct no liability shall be accepted for any loss or damage caused by any error or omission whether such error or omission is the result of neg
39. or independent operation to trip the BUS breaker BUS overcurrent check stage not shown in the event of an arc fault in the CB chamber or BUS chamber Trip BUS CB s Figure 4 One arc sensor Cable box CT chamber Independent trip to CB Two arc sensors CB chamber amp BUS chamber Independent trip to BUS breaker BUS overcurrent check stage not shown AT QNA TOY we K CERTIFIED QUALITY MANAGEMENT SYSTEM 1509001 BUS Bar Applications BUS BAR ARC PROTECTION Figure 5 depicts how the 1S20 may also be applied for the protection of bus bars The number of sensors in the bus chamber is dictated by the switchgear design and the length of switchboard In most indoor metal clad switchgear the bus bar chamber is a continuous chamber between panels only broken into segregated sections ata bus section breaker amp as such the strategic placement of one or two arc sensors in each bus bar chamber run is normally adequate Some indoor metal clad switchgear may segregate the bus chamber of each panel from the next via insulated bus chamber side barriers per panel if this is the case then each bus chamber per panel would need to be monitored by at least one arc sensor In large enclosures the arc sensors should be placed at approximately 5m intervals F a a eo eco 50 51 Figure 5 One two or three arc sensors located in the BUS chamber vist WWW rmspl COM AU forthe latest product information
40. r example if the CB cable box cover was left open in very high ambient light level conditions A non arc fault over current pick up would then result in an arc fault trip operation To avoid possible mal operation due to this condition the 1S20 is designed to automatically disable the arc fault tripping function if the 1S30 sensor is picked up for gt 10s The 1S20 alarm contact will be set amp the front LED flash alternate orange amp red until the ambient light level problem is corrected The 1820 will then perform an arc sensor test function amp automatically reset vist WWW rmspl COM AU forthe latest product information Due to RMS continuous product improvement policy this information is subject to change without notice 1S20 Issue R 28 02 2010 4 11 OVER CURRENT RELAY Configuration CONFIGURATION SWITCH The configuration switches are accessible to the user by first unplugging the electronic module from the terminal base as shown in Figure 7 cas 1 ARC SENSOR 2 ON OFF O 2 LATCHING TRIP LED ON OFF 5 lt iia 3 INDEPENDENTARCTRIP ON OFF 30 4 LATCHING TRIP CONTACTS ON OFF fags OR 5 ARC SENSOR 3 ON OFF i FAL CONFIGURATION SWITCH SETTINGS The internal wiring label identifies the position of the following e SO ARGES switch functions 9 O CoM Switch 1 Arc sensor 2 10 O ARC1 DEF ON Arc Sensor 2 fitted OFF Arc Sensor 2 not fitted Switch 2 Arc fault trip indication LED reset orf 12 O Aux
41. reaker in the event of an arc fault occurring at any sensor provided the overcurrent relay starter contact is picked up In these applications the overcurrent check stage is optional as the consequence of a single feeder outage is less than the loss of an entire BUS Figure 3 shows an application where a single 1S20 is applied for the protection of the Cable box CT chamber amp CB chamber using three sensors In this configuration one arc trip output is used to trip the feeder circuit breaker in the event of an arc fault in the cable box CT chamber The second trip output is set for independent operation to trip the BUS breaker BUS overcurrent check not shown in the event of an arc fault in the CB chamber EXISTING SWITCHGEAR APPLICATIONS The existing overcurrent relay protecting the feeder will normally provide an independent output contact associated with the start current setting of the relay That is an output contact that will close when a phase or earth fault current is detected above the threshold which starts the internal relay timers This starter element should be set for instantaneous operation so that it will pick up in the order of 15ms An Arc Fault Monitor relay 1S20 is installed on the switchgear panel adjacent to the protection relay The 1S20 is specifically designed for simple retrofit to existing panels amp requires only a single 31mm mounting hole to be drilled The 1S20 fits through this hole the designation label
42. red AT RNEER ON ww K Visit www rmspl com au for the latest product information CERTIFIED QUALITY PEERS eee Due to RMS continuous product improvement policy this information is subject to change without notice User_Guide 5 Iss D 29 01 08 30300 Australian Content Unless otherwise stated the product s quoted are manufactured by RMS at our production facility in Melbourne Australia Approximately 60 of our sales volume is derived from equipment manufactured in house with a local content close to 80 Imported components such as semi conductors are sourced from local suppliers amp preference is given for reasonable stock holding to support our build requirements Quality Assurance RMS holds NCSI NATA Certification Services International registration number 6869 for the certification of a quality assurance system to AS NZS 1S09001 2008 Quality plans for all products involve 100 inspection and testing carried out before despatch Further details on specific test plans quality policy amp procedures may be found in section A4 of the RMS product catalogue Product Packaging Protection relays are supplied in secure individual packing cardboard boxes with moulded styrene inserts suitable for recycling Each product amp packing box is labeled with the product part number customer name amp order details Design References The products amp components produced by RMS are based on many year
43. s of field experience since Relays Pty Ltd was formed in 1955 A large population of equipment is in service throughout Australia New Zealand South Africa amp South East Asia attesting to this fact Specific product amp customer reference sites may be provided on application Product Warranty All utility grade protection amp auxiliary relay products unless otherwise stated are warranted for a period of 24 months from shipment for materials amp labour on a return to factory basis Repair of products damaged through poor application or circumstances outside the product ratings will be carried out at the customers expense Standard Conditions of Sale Unless otherwise agreed RMS Standard Terms amp Conditions QF 907 shall apply to all sales These are available on request or from our web site Relay Monitoring Systems Pty Ltd 6 Anzed Court Mulgrave Victoria 3170 AUSTRALIA Tel 61 3 8544 1200 Fax 61 3 8544 1201 Email rms rmspl com au Web www rmspl com au 2011 Relay Monitoring Systems Pty Ltd Due to RMS continuous product improvement policy this information is subject to change without notice
44. t board together with the associated detection circuit Figures 1 amp 2 The detector monitors a wide space angle A broad spectral response in the visible region is provided as depicted in figure 5 Sensitivity of the arc sensor has been set to a low level to reduce the possibility of mal operation under high ambient lighting conditions This is made possible due the high intensity of light emitted under arc fault conditions Additional security can be incorporated by way of a current check stage as described in the 1S20 Arc Fault Monitor Technical Bulletin In stand by mode the 1S30 sensor presents a high resistance to the 12V DC control signal provided by the 1S20 1S25 or 1S26 Arc Fault Monitors This allows a small circulating current to flow for continuous supervision of the 1S30 connection circuit When an arc is detected the resistance presented by the 1S30 drops to a level where the current flow increases to approximately 20mA This increased current flow is instantaneously detected by the Arc Fault Monitor amp its trip output contacts closed Refer to the 1S20 Arc Fault Monitor Technical Bulletin for further details visit WWW rmspl COM aU forthe latest product information Due to RMS continuous product improvement policy this information is subject to change without notice 1S30 Issue G 18 07 11 1 5 SINGLE DETECTOR PACKAGE Figure 1 depicts the 1S30 with a single optical detector Note the window where the active part o
45. ted on the front panel as the alarm indications are available on the feeder relay Remote reset of the 1520 LED is achieved by momentary interruption of the power supply using a SCADA controlled series contact The DIN rail mounting option is a convenient alternative in this situation AT QNA TOY we K Switchgear Applications Figure 1 Single arc sensor Cable box only Optional overcurrent check stage depicted Figure 2 Two arc sensors Cable box amp CT chamber Optional overcurrent check stage depicted Trip BUS CB s Figure 3 Two arc sensors Cable box amp CT chamber Independent trip to CB Optional overcurrent check stage depicted One arc sensor CB chamber Independent trip to BUS breaker BUS overcurrent check stage not shown CERTIFIED QUALITY visit WWW rmspl COM AU for the latest product information MANAGEMENT SYSTEM Due to RMS continuous product improvement policy this information is subject to change without notice 1S20 Issue R 28 02 2010 2 11 1509001 COMBINED BUS BAR amp SWITCHGEAR ARC PROTECTION Figure 4 shows an application where a single 1S20 is applied for the protection of the Cable box amp CT chamber plus the CB chamber amp BUS chamber using three sensors In this configuration one arc trip output is used to trip the feeder circuit breaker in the event of an arc fault in the cable box CT chamber The second trip output is set f
46. ted within the specified electrical and environmental limits as per the Technical Bulletin Insulation amp Dielectric Strength Testing Insulation testing may leave capacitors charged up to a hazardous voltage At the end of each part of the test the voltage should be gradually reduced to zero to discharge capacitors before the test leads are disconnected Electrical Adjustments Pieces of equipment which require direct physical adjustments to their operating mechanism to change current or voltage settings should have the electrical power removed before making the change to avoid any risk of electric shock Mechanical Adjustments The electrical power to the relay contacts should be removed before checking any mechanical settings to avoid any risk of electric shock Decommissioning amp Disposal Decommissioning The auxiliary supply circuit in the relay may include capacitors across the supply or to earth To avoid electric shock or energy hazards after completely isolating the supplies to the relay both poles of any dc supply the capacitors should be safely discharged via the external terminals prior to decommissioning Disposal lt is recommended that incineration and disposal to water courses is avoided The product should be disposed of in a safe manner AT RNEER ON ww K Visit www rmspl com au for the latest product information Due to RMS continuous product improvement policy this information is subject to cha
47. tinuous product improvement policy this information is subject to change without notice 1S20 4 Iss B 29 02 08 30300 CTION amp CONTRO Mounting the 1830 Arc Fault Sensors The arc sensor is a light sensitive element which is activated by strong light The light sensitivity of the arc sensor is approximately 8000 LUX Arc sensors should be mounted in the switch gear cubicles in such a way that the light sensitive part covers the protected area as completely as possible The sensitivity of the sensor is nearly equal over the front side In switchgear however the light caused by an arc is reflected from the walls therefore the mounting position of the sensor is not critical Mount the sensors in the switchgear cubicles in such a way that the detecting surface covers the space to be supervised as completely as possible The sight must be free between the sensor and the supervised area Refer to the 1830 Technical Bulletin for details on mounting the various types of 1S30 Arc Fault Sensors NOTE The arc sensor must not be exposed to direct sunlight or any other strong light Do not mount the arc sensor directly under a light source AT RNEER ON ww K Visit www rmspl com au for the latest product information Due to RMS continuous product improvement policy this information is subject to change without notice 1S20 4 lss B 29 02 08 CERTIFIED QUALITY MANAGEMENT SYSTEM 30300 eROTEcIO amp CONTRO
48. ue R 28 02 2010 7 11 norec ION amp CONTRO Panel Mount Version CLEARANCE AROUND UNIT 30 0 30 0 a 75 0 1520 MS ARC FAULT MONITOR 1 HOLE 431 RESET TEST N NONE DC Fail RED Arc Fault Trip GREEN System Functioning ORANGE SOLID Sensor 1 Service ORANGE FLASH Sensor 2 or 3 Service ORANGE RED Continuous Sensor P U Made in Australia S N 888888 888 75 0 MAXIMUM PANEL THICKNESS 3mm FRONT VIEW Figure 14 Panel mounting cut out detail 2 HOLES M4 6 0 oe CLEARANCE rH p ARC FAULT MONITOR RESET TEST iw a Fo NONE DC Foil g RED Arc Fault Trip 2 GREEN System Functioning amp ORANGE SOLID Sensor 1 Service 3 ORANGE FLASH Sensor 2 or 3 Service 3 ORANGE RED Continuous Sensor P U D Made in Australia 1 p FRONT VIEW Figure 15 Surface mounting detail 52 1820 lt ms gt ARC FAULT MONITOR RESET TEST ND NONE DC Fail o RED Arc Fault Trip ge GREEN System Functioning 8 ORANGE SOLID Sensor 1 Service amp ORANGE FLASH Sensor 2 or 3 Service fi ORANGE RED Continuous Sensor P U D Made in Australia Figure 16 DIN rail mounting detail NA7 o lt Vg CERTIFIED QUALITY visit WWW rmspl COM AU for the latest product information ee Due to RMS continuous product improvement policy this information
49. www rmspl com au for the latest product information PEERS eee Due to RMS continuous product improvement policy this information is subject to change without notice User_Guide 5 Iss D 29 01 08 0 10 Test Intervals The maintenance tests required will largely depend upon experience and site conditions but as a general rule it is recommended that the following inspection and tests are performed every twelve months Mechanical inspection Check of connections Insulation resistance test Fault setting tests Speed of operation performance checks 1520 Speed of Operation Test Jig Manufactured by RMS AT RNEER ON ww K NCS ly CERTIFIED QUALITY Visit www rmspl com au for the latest product information Gables A Due to RMS continuous product improvement policy this information is subject to change without notice User_Guide 5 Iss D 29 01 08 oROtectlO amp CONTRO Defect Report Form this sheet and use it to report any defect which may occur Contact Name Please cop Customers Name amp Address Telephone No Date when installed Supplied by Circuit When Defect Found Commissioning Systems Fault Other Please State Serial Number Product Part No Copy any message displayed by the relay Describe Defect Describe any other action taken Signature Please Print Name Date Received Contact Name Date Acknowledged Date of Reply Date Clea
50. y should be returned to its original carton and stored in a clean dry place AT RNAI ON x dy NCS CERTIFIED QUALITY Visit www rmspl com au for the latest product information MANAGEMENT SYSTEM Due to RMS continuous product improvement policy this information is subject to change without notice 1S20 4 Iss B 29 02 08 500 enorectlo amp CONTRO Panel Mounting the 1820 Arc Fault Monitor RELAY PANEL 3mm THICK MAXIMIUM SLIDE OUT CABLE ENTRY POINTS 3 ON ONE SIDE 1 AT EACH END FRONT PANEL LABEL Supplied with module pans 1S30 Arc Fault Monitor RETENTION SHROUD RESET TEST Protection www rmspl com au GREEN System Functioning RED Arc Fault Trip ORANGE SOLID Sensor 1 Service ORANGE FLASH Sensor 2 or 3 Service ORANGE RED Continuous Sensor P U NONE DC Supply Fail www rmspl com au Use double sided tape supplied 86mm Top amp bottom positions SIDE VIEW SERIAL NO amp RATING M LABEL IN THIS POSITION Ht ON REAR TERMINAL BLOCK FOR 1820 x A x PANEL fi a ce E MOUNT VERSION 3141mm El lt 0 ID Ol wo ae 2 g REMOVE FOR a CABLE ENTRY e 32mm E lt gt REMOVE FOR TWO M4 OR 4BA FRONT VIEW PANEL CUT OUT DETAIL REAR VIEW MOUNTING SCREWS Panel Mount Version Minimum clearance to other devices mm AT RNEER ON ww K CERTIFIED QUALITY Visit www rmspl com au for the latest product information MANAGEMEN
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