SE-105 Ground-Fault Ground-Check Monitor Manual Rev
Contents
1. GF TRIP TIME s FA Littelfuse STARTCO POWER ENHANCED FILTERING SE 105 GF GC MONITOR SW CI Gi G D S S FA Littelfuse STARTCO 105 GF GC MONITOR G SW RK 13 CONNECTION WITHOUT REMOTE INDICATION OR RESET NOTES 1 SEE ORDERING INFORMATION FOR TERMINATION DEVICES 5 W AXIAL LEAD DEVICE INCLUDED FOR OPTION L K1 CLOSES ON GROUND CHECK TRIP K2 CLOSES ON GROUND FAULT TRIP FIGURE Typical Application K1 CLOSES ON GROUND CHECK VALID STARTCO Sw CI GF GC MONITOR Gi GC G S S S S S S GROUND FAULT as INDICATOR 2 A N GREEN sw L GROUND CHECK INDICATOR RESET SWITCH SA Littelfuse STARTCO GF GC MONITOR GI GC G _ INDICATOR GROUND CHECK Ga 34 VZ GREEN INDICATOR RESET S2. d gt NOTES 1 DIMENSIONS IN MILLIMETRES INCHES 2 TERMINAL BLOCK SCREWS 6 32 x 0 25 3 MOUNTING SCREWS M4 OR 8 32 4 SHOWN WITHTERMINAL BLOCK COVER REMOVED 5 MINIMUM CLEARANCE FOR FUSE REMOVAL Littelfuse STARTCO BOTTOM SE 105 Ground Fault Ground Check Monitor Page 5 Rev 13 D 050315 44 5 MAX 1 75 NOTES 1 DIMENSIONS IN MILLIMETRES INCHES 2 MOUNTING SCREWS M4 OR 8 32 2 Mi BLACK 41 4 OR 8 32 MOUNTING DETAIL PART DIMENSIONS NUMBER A B D E F CT200 55 9 2 20 120 7 4 75 101 6 4 00 98 3 3 87 108 0 4 25 5 6 0 22 CT200L 88 9 3 50 154 0 6 06 133 4 5 25 139 7 5 50 144 5 5 69 7 1 0 28 FIGURE 3 CT200 and CT200L Current Transformers 3 3 GROUND CHECK TERMINATION Install the ground check termination at the load to complete the ground check loop as shown in Fig 1 Termination outlines and mounting details are shown in Figs 4 5 and 6 Use only a Littelfuse Startco termination device others may not meet performance requirements Connect terminal G of the termination to the equipment frame so that the ground conductor to equipment frame connection is included in the monitored ground check loop
3. 1 kg 2 2 Ib 5 3 TERMINATION ASSEMBLIES SE TA6 Characteristic Zener Diode Unidirectional Circuit Type High Current Shunt Regulator Reverse Voltage 5 6 0 3 Vdc 25 mA Forward Voltage 0 65 0 1 Vdc 25 mA Operating Temperature 40 to 60 C 40 to 140 F Power Rating 50 W Screw Terminal 6 32 x 0 25 SE 105 Ground Fault Ground Check Monitor Page 13 Rev 13 D 050315 Dimensions 67 x 40x 41 5 mm 2 6 x 1 6 x 1 6 Shipping Weight 200 g 0 45 Ib SE TA6ASF WL Characteristic 6 V Zener Temperature Compensated Circuit Type High Current Shunt Regulator Reverse Voltage 5 6 0 03 Vdc 100 mA Forward Voltage 0 5 0 1 Vdc 100 mA Operating Temperature 40 to 60 C 40 to 140 F Current Range 2mAto15A Maximum Clamping Voltage senex 55 V Q 250 A 5x20 us Pulse Power Rating 12W Wire Leads 18 AWG 0 82 mm 300 mm 11 8 Dimensions 58 8 x 19 x 12 7 mm 2 32 x 0 75 x 0 5 Shipping Weight 45 g 0 1 Ib SE TA6 SM Characteristic Zener Diode Unidirectional Circuit Type
4. SIDE VIEW RK 13 SHOWN MOUNTED ON SE 105 SE 107 SE 325 INSTALLATION INSTRUCTIONS 1 REMOVE FOUR LEFTMOST LOWERTERMINAL BLOCK SCREWS 2 PLACE RK 13 ONTERMINAL BLOCK AND REPLACE SCREWS 3 MAKE REQUIRED CONNECTIONS TO TERMINAL BLOCK TB1 NOTES 1 DIMENSIONS IN MILLIMETRES INCHES 2 CERTIFICATIONS NOT SHOWN FIGURE 10 RK 13 Relay Interface Module Ua Littelfuse SE 105 Ground Fault Ground Check Monitor STARTCO Page 10 Rev 13 D 050315 9 5 DIA 0 38 DIA l 0 75 0 50 63 5 FIGURE 11 PPI 600V Parallel Path Isolator NOTES 1 DIMENSIONS IN MILLIMETRES INCHES WA Littelfuse Page 11 STARTCO SE 105 Ground Fault Ground Check Monitor Rev 13 D 050315 GROUND CHECK MONITOR SE 105 SE 107 SE 134C OR SE 135 CABLE GROUND G lt OUTGOING GROUND CHECK 1 G gt OUTGOING GROUND INCOMING GROUND CHASSIS GROUND BUS PPI 600V 1 THE PARALLEL PATH ISOLATOR 15 NOT POLARIZED EITHER FLANGE CAN BE CONNECTEDTO CHASSIS 2 THE OUTGOING GROUND MUST BE ISOLATED FROMTHE CHASSIS GROUND BUS IF A FLANGE MOUNTED RECEPTACLE IS USED VERIFY THAT THE FLANGE IS ISOLATED FROMTHE GROUND PIN AND USE A MATING PLUG WITH A NON METALLIC HOUSING OR ISOLATE THE FLANGE FROMTHE CHASSIS IF THE MATING P
5. 1 2 3 FUSIN ase reden i 1 Specifications are subject to change without notice 3 2 2 Littelfuse Startco is not liable for contingent SUME IUe 2 consequential damages or for expenses sustained as a 3 2 Ground Fault CT 4 result of incorrect application incorrect adjustment or a 3 3 Ground Check Termination 5 malfunction 3 4 Remote 8 6 3 5 Parallel Path Isolation 6 3 6 Ground Fault Testing esee 6 4 Compatibility eene 6 5 Technical Specifications 12 51 8 105 12 5 2 Current Sensors 13 5 3 Termination Assemblies 13 6 Ordering Information 13 7 Warranty eitis cedit 14 8 Ground Fault Performance Test 15 Appendix A SE 105 Revision History 16 LIST OF FIGURES FIGURE PAGE 1 Typical Application 2 3 2 SE 105 Outline and Mounting Detalls 4 3 200 and CT200L Current Transformers 5 4 Zener Diode Termination Devices 6 5 SE TA6 Termination Assembly 7 6
6. RK 105 RK 105 Serial No DF140309164 Revision 00 LED s 21 mA 12 Switch 50 mA 12 Vdc Re AY Use with SE 105 and SE 107 US 1 800 TEC FUSE 1 800 832 3873 LR 53428 Made in Saskatoon Canada uitteltus 2 X STARTCO b 3 8 0 15 22 25 DIA 0 875 SIDE VIEW FRONT VIEW MOUNTING DETAIL NOTES 1 DIMENSIONS IN MILLIMETRES INCHES 2 NEMA 1 FIGURE 8 RK 105 Remote Indication and Reset Assembly Littelfuse Page 9 STARTCO SE 105 Ground Fault Ground Check Monitor Rev 13 D 050315 60 0 2 36 44 5 1 75 N JE outune e GROUND CHECK e GROUND FAULT O RK 105I RK 1051 Serial No DF140309164 Revision 00 LED s 21 12 Vdc Use with SE 105 and SE 107 us 1 800 TEC FUSE 1 800 832 3873 LR 53428 Made in Saskatoon Canada Z uitteltuse STARTCO A 3 8 0 15 DIA SIDE VIEW FRONT VIEW MOUNTING DETAIL NOTES 1 DIMENSIONS IN MILLIMETRES INCHES 2 NEMA 1 FIGURE 9 RK 105I Remote Indication Assembly
7. Indication Assembly RKE 3 aaa Relay Interface Module Parallel Path Isolator PPLE600V u asa For system voltages up to 600 Vac 7 WARRANTY The SE 105 Ground Fault Ground Check Monitor is warranted to be free from defects in material and workmanship for a period of five years from the date of purchase Littelfuse Startco will at Littelfuse Startco s option repair replace or refund the original purchase price of an SE 105 that is determined by Littelfuse Startco to be defective if it is returned to the factory freight prepaid within the warranty period This warranty does not apply to repairs required as a result of misuse negligence an accident improper installation tampering or insufficient care Littelfuse Startco does not warrant products repaired or modified by non Littelfuse Startco personnel SE 105 Ground Fault Ground Check Monitor Page 14 Rev 13 D 050315 Littelfuse STARTCO 8 GROUND FAULT PERFORMANCE TEST To meet the requirements of the National Electrical Code NEC as applicable the overall ground fault protection system requires a performance test when first installed A written record of the performance test is to be retained by those in charge of the electrical installation in order to make it available to the authority having jurisdiction A test record form is provided for recording the date and the final results of the performance tests The following ground fault system tes
8. High Current Shunt Regulator Reverse Voltage 5 6 0 3 Vde 25 mA Forward Voltage 0 65 0 1 Vde 25 mA Operating Temperature 40 to 60 C 40 to 140 F Power Rating 50W Screw Terminal 0 25 28 UNF Dimensions Body 45 mm Wire Lead 250 mm 9 84 14 AWG 2 08 mm Shipping Weight 45 g 0 1 Ib 6 ORDERING INFORMATION Option List 4 SE 105 120 Vac Supply E 240 Vac Supply D 120 Vac dc Supply Each SE 105 is supplied with a 1N5339B termination device List options required in order shown above Standard leave blank 8 Only Supply option available with C Tick certification Ground Fault CT s 200 mms 56 mm 2 27 window CT200L 89 mm 3 5 window L Latching Ground Check Trip Littelfuse STARTCO Ground Check Termination 1N5339B 5 W Axial Lead Termination Device 50 W Termination Assembly SE TA6 SM 50 W Stud Mount Termination Assembly SE TAGASF WL 12 W Small Format Termination Assembly with Wire Leads RK 102 eerie Includes two LED pilot lights a reset push button and legend plates RK 105 eee Indication and Reset Assembly 1051
9. 5 6 volt Zener characteristic The Zener characteristic clamps induced voltage and allows induced current to flow in the ground check loop Consequently induced ac withstand capability noise immunity and open short detection are independent of current in the phase conductors Enhanced filtering prevents false ground check validation due to active chopper condition See www littelfuse com relayscontrols for Technical Note GC 1 SE 105 Ground Fault Ground Check Monitor NOTE The SE 105 is not a lock out device Follow lock out procedures for maintenance 2 OPERATION 2 1 SETTINGS 2 1 1 GF TRIP TIME Ground fault trip time is adjustable from 0 1 to 2 0 seconds Time coordinated ground fault protection requires this setting to be longer than the trip time of downstream ground fault devices 2 1 2 GF The ground fault circuit trip level is 0 5 2 0 or 4 0 A when current is sensed with a CT200 series current transformer Since the ground fault circuit trip level should not be greater than 2096 of the grounding resistor let through current these levels are appropriate for use with 5 15 or 25 A grounding resistors For other applications the trip level of the ground fault circuit is 0 25 1 0 or 2 096 of the primary rating of the 5 A secondary current transformer 2 1 3 MODE In the shunt trip mode SH the output relay energizes and its contact closes if the ground check loop becomes Page 1 Rev 13 D 0
10. F1 part number APPENDIX A Revision history updated REVISION 13 B 090814 SECTION 3 Updated Figure 1 SECTION 4 Updated Figures 5 6 8 and 9 SECTION 5 Updated RK 13 contact ratings Updated notes APPENDIX A Revision history updated REVISION 13 A 070413 SECTION 3 Updated Figure 1 SECTION 4 Updated Figure 7 APPENDIX A Revision history added PRODUCT REVISION HISTORY REVISION 13 Minor hardware change REVISION 12 No change
11. SE TA6ASF WL Small Format Termination Assembly with Wire Leads 7 7 RK 102 Remote Indication and Reset Kit 8 8 RK 105 Remote Indication and Reset Assembly 8 9 RK 105I Remote Indication Assembly 9 10 RK 13 Relay Interface Module 9 11 PPI 600V Parallel Path Isolator 10 12 PPI 600V Typical Installation 11 13 Ground Fault Test Circutfs 15 WA Littelfuse Page iii STARTCO SE 105 Ground Fault Ground Check Monitor Rev 13 D 050315 This page intentionally left blank Littelfuse STARTCO 1 GENERAL The SE 105 is a combination ground fault and ground check monitor for resistance grounded systems in non hazardous applications ground fault circuit is latching and the ground check circuit is typically non latching One output contact is provided for contactor control or for shunt or undervoltage operation in a breaker trip circuit Ground fault current is sensed by a CT200 series current transformer A trip level of 0 5 2 0 or 4 0 A is switch selectable for use with a 5 15 or 25 A grounding resistor Enhanced filtering eliminates false ground fault trips from adjustable speed drive harmonic distortion Trip time is adjustable from 0 1 to 2 0 seconds The fail safe ground check circuit is validated by an end of line termination with
12. have been changed as shown in Table 1 Terminals and CT2 are transformer isolated so that the CT secondary can be grounded Units with old designations do not allow the secondary of the ground fault CT to be grounded when the ground check circuit is used TABLE 1 TERMINAL DESIGNATIONS OLD SE 105 DESIGNATION DESIGNATION RELAY RELAY L N SW GL P G 7 250 9 84 LENGTH OF 14 AWG YELLOW STRANDED WIRE 9 avoi G3TIVISNI 38 16 NOLLWNIWYAL NOTES 1 DIMENSIONS IN MILLIMETRES INCHES 2 CAN BE IMMERSED IN GLYCOL 1N5339B SE TA6 SM FIGURE 4 Zener Diode Termination Devices Page 7 F4 EU SE 105 Ground Fault Ground Check Monitor Rev 13 D 050315 5 6 Vd 1 800 TEC FUSE 1 800 832 3873 Serial No DA140303376 8 y LR 53428 FA Littelfuse STARTCO SE TA6 TERMINATION ASSEMBLY Rev 00 Y 4 5 0 18 C BORE 10 0 0 39 3 2 0 13 DEEP FRONT MOUNTING DETAIL NOTES DIMENSIONS IN MILLIMETRES INCHES TERMINAL BLOCK SCREWS 6 32 x 0 25 MOUNTING SCREWS 4 OR 8 32 ENCLOSURE IS ELECTRICALLY CONNECTED TOTERMINAL G CAN BE IMMERSED IN GLYCOL FIGURE 5 SE TA6 Termination Assembly MOUNTING DETAIL SE TAGASF WL TERMINATION
13. is protected by fuse F1 4 0 A time delay The ground check circuit is protected by fuse F2 0 5 A time delay Littelfuse Page 2 STARTCO SE 105 Ground Fault Ground Check Monitor Rev 13 D 050315 3 INSTALLATION 3 1 SE 105 SE 105 outline and mounting details are shown in Fig 2 Typical connections are shown in Fig 1 Connect supply voltage to L1 and L2 For a 120 Vac supply connect supply neutral to L2 For direct current supply Option D connect supply negative to L2 Connect chassis bonding terminal to ground Connect contact terminals A and B as required Faceplate LED s are driven in series with remote indication LED s When a remote kit is not used terminals CI and GI must be connected for the face plate LED s to operate These jumpers are installed at the factory Connect terminal GC to the outgoing ground check conductor and connect terminal G to ground To meet electrical code requirements do not jumper chassis bonding terminal to terminal G Install the upper terminal block cover to prevent inadvertent contact with line terminals Page 3 Rey 13 D 050315 Littelfuse STARTCO SE 105 Ground Fault Ground Check Monitor m f S 4 T VA I S S GROUND S 1 GROUND CHECK lt lt GC HOLD IN CONTACT USE LOW NOTE1 LEVEL G CONTACTS GROUND CHECK ALTERNATE TERMINATION CIRCUIT TERMINATION FOR REMOTE CONTACTOR CONTROL SA Littelfuse
14. 50315 invalid or if a ground fault trip occurs The shunt trip mode is not fail safe and is not recommended because Shunt trip devices do not operate if supply voltage fails Shunt trip ground check circuits allow open cable couplers to be energized for a short interval after supply voltage is applied In the undervoltage mode UV the output relay is energized and its contact is closed when the ground check loop is valid and the ground fault circuit is not tripped The undervoltage mode is referred to as fail safe and is recommended because e Undervoltage devices release if supply voltage fails e Undervoltage ground check circuits do not allow cable couplers to be energized until the ground check loop is verified For fail safe only applications use an SE 107 Ground Fault Ground Check Monitor 2 2 INDICATION AND RESET The blue POWER LED indicates that the internal power supply is on The red GROUND FAULT LED indicates ground fault trip and the green GROUND CHECK LED indicates a valid ground check loop When a ground fault trip occurs the SE 105 remains latched until the reset button is pressed or the supply voltage is cycled ground check circuit is non latching and does not require a reset Terminals are provided for remote indication and reset as shown in Fig 1 For latching ground check Option L the GROUND CHECK LED is red and it indicates a latched ground check trip 2 3 FUSING The output contact
15. ASSY Rev 01 Serial No DE130600619 Rating 5 6 Vdc 105 mA 12 W c us Use with SE 134 SE 134C SB6100 LR 53428 NOTES 1 DIMENSIONS IN MILLIMETRES INCHES GC 300 12 OF SE TAGASF WL TERMINATION 2 MOUNTING SCREWS M3 5 OR 6 32 YELLOW WIRE ASSEMBLY P Littelfuse 7 8 STARTCO 3 CAN BE IMMERSED IN GLYCOL 1 800 TEC FUSE 1 800 832 3873 Made in Saskatoon Canada 300 12 OF GREEN YELLOW WIRE FIGURE 6 SE TA6ASF WL Small Format Termination Assembly with Wire Leads Littelfuse Page 8 STARTCO SE 105 Ground Fault Ground Check Monitor Rev 13 D 050315 IS GROUND CHECK GROUND FAULT E LEGEND T PLATE NOTE 2 1 1 22 2 0 87 DIA 36 6 144 LEGEND PLATES LED PILOT LIGHTS NOTES 1 DIMENSIONS IN MILLIMETRES to INCHES INDICATES CLEARANCE REQUIRED 30 0 MINIMUM 1 18 Le 366 2 NEMA 4X 1 44 CERTIFICATIONS NOT SHOWN PUSH BUTTON MOUNTING DETAIL PANELTHICKNESS 1 0TO 6 0 0 04 TO 0 24 40 0 MINIMUM FIGURE 7 RK 102 Remote Indication and Reset Kit 60 0 2 36 44 5 1 75 d N IE ouruine e GROUND CHECK e O GROUND FAULT O
16. Connect terminal GC of the termination to the incoming ground check conductor If ground check interlocks are used low level bifurcated precious metal or sealed reed contacts are recommended If used as a ground fault monitor only install the termination at the SE 105 Littelfuse STARTCO 3 4 REMOTE OPERATION Terminals SW CI and GI are provided for remote LED indication and remote reset as shown in Fig 1 Remote LED s are driven in series with the front panel LED s Remove factory installed jumpers from terminals CI and GI and connect a remote kit as shown in Fig 1 Optional remote kits are shown in Figs 7 8 and 9 Standard LED indicator lamps are not compatible with the SE 105 For general purpose applications use the RK 105 Remote Indication and Reset Assembly or the RK 105I Remote Indication Assembly Connect terminals SW CI and GI to remote kit terminals SW CI RI and GI For 22 mm component applications use the RK 102 Remote Indication and Reset Kit Connect terminal X2 of the green ground check indicator to CI terminal X2 of the red ground fault indicator to GI and connect indicator X1 terminals to For remote reset connect the normally open push button switch across terminals and SW If indication is required from a separate voltage source or if separate ground fault and ground check contacts are required use an RK 13 Relay Interface Module The RK 13 mounts on the SE 105 lowe
17. LUG HAS A METALLIC HOUSING CABLE PLUGS AND RECEPTACLES WITH GROUNDED METAL HOUSING MUST BE ISOLATED FROM GROUNDTO PREVENT PARALLEL GROUND PATHS 4 FOR SYSTEMS ABOVE 600 VAC CONNECT AV131DA40 MOV ACROSSTHE PPI 600V FIGURE 12 PPI 600V Typical Installation Littelfuse STARTCO SE 105 Ground Fault Ground Check Monitor 5 TECHNICAL SPECIFICATIONS 5 1 SE 105 10 VA 120 or 240 Vac 10 45 50 60 Hz 5 W 120 Vdc 440 8 10 VA 120 Vac 10 45 50 60 Hz NOTE Voltage between supply terminals L1 L2 and ground terminal G must not exceed 300 Vac continuous or 1 250 Vac under transient conditions Dimensions Environment Operating Temperature Storage Temperature Humidity Ground Fault Circuit CT Ratones CT Input Burden Trip Level Frequency Response Trip Time Thermal Withstand Trip Level Accuracy 150 mm 5 9 109 mm 4 3 100 mm 4 0 1 kg 2 2 Ib 40 to 60 C 40 to 140 F 55 to 80 C 67 to 176 F 85 Non Condensing 200 5 0 02 Q 0 5 2 0 or 4 0 A 25 to 110 Hz 0 1 to 2 0s 200 A Continuous 2 500 A for2 s 10 20 CT Lead Resistance Limit 2 0 5 A Trip Level 2 A Trip Level 4 A Trip Level Trip Time Accuracy Trip Gr
18. T provides a test current of 0 65 or 2 75 A for testing 0 5 and 2 0 A trip levels Inject the test current through the current transformer window for at least 2 5 seconds Verify that the circuit under test has reacted properly Correct any problems and re test until the proper reaction is verified Record the date and the results of the test on the attached test record form e wm SE 105 Ground Fault Ground Check Monitor Page 15 Rev 13 D 050315 a USING SE 400 FROM POWER SOURCE me REMOTE O 0777 b USING SE 100T FROM POWER SOURCE L2 D SE 100T o RMT FIGURE 13 Ground Fault Test Circuits TABLE 2 GROUND FAULT TEST RECORD Retain this record for the authority having jurisdiction Page 16 F4 SE 105 Ground Fault Ground Check Monitor Rev 13 D 050315 APPENDIX A SE 105 REVISION HISTORY MANUAL MANUAL PRODUCT REVISION RELEASE DATE REVISION REVISION NUMBER ON PRODUCT LABEL May 3 2015 13 D 050315 13 April 29 2015 13 C 042915 September 8 2014 13 B 090814 July 4 2013 13 070413 MANUAL REVISION HISTORY REVISION 13 D 050315 SECTION 5 FCC certification added Updated Fuse F1 part number Sections 5 2 and 5 3 added APPENDIX A Revision history updated REVISION 13 C 042915 SECTION 5 Updated Fuse
19. WA Littelfuse STARTCO 3714 Kinnear Place Saskatoon SK Canada 57 6 Ph 306 373 5505 Fx 306 374 2245 www littelfuse com relayscontrols SE 105 MANUAL GROUND FAULT GROUND CHECK MONITOR REVISION 13 D 050315 GROUND CHECK je 2 0 POWER GF TRIP TIME s ENHANCED FILTERING UA Littelfuse STARTCO GF GC MONITOR sw Gi G L O Copyright 2015 by Littelfuse Startco All rights reserved Document Number PM 1300 EN Printed in Canada Littelfuse Page i STARTCO SE 105 Ground Fault Ground Check Monitor Rev 13 D 050315 This page intentionally left blank F Littelfuse Me STARTCO SE 105 Ground Fault Ground Check Monitor Rev 13 D 050315 TABLE OF CONTENTS LIST OF TABLES SECTION PAGE TABLE PAGE 1 Cenerali URN COME 1 1 Terminal Designations dis optet 6 2 Operation 2 2 2 20102 00000 0000048 1 2 Ground Fault Test Record 15 2 l Settings rene tg 1 2 1 1 GF Trip 2 22224 1 2 1 2 GE aeter de senate 1 DISCLAIMER 213 1 2 2 Indication and Reset
20. WITCH O 24 120 Vac Vdc ALTERNATE 1 RESET CIRCUIT RK 13 CONNECTION WITH REMOTE INDICATION AND RESET Littelfuse STARTCO 3 2 GROUND FAULT CT Outline and mounting details for CT200 and CT200L current transformers are shown in Fig 3 Pass the phase conductors through the CT window as shown in Fig 1 Do not pass the ground or ground check conductors through the CT In applications that require shields or drain wires to pass through the CT return them through the CT before connecting them to ground SE 105 Ground Fault Ground Check Monitor Page 4 Rev 13 D 050315 Connect the secondary of the ground fault CT to SE 105 terminals and 2 CT connection to the SE 105 is not polarity sensitive Ground one side of the CT secondary NOTE The CT200 and CT200L are 600 V rated current transformers When system voltage is above 600 V ensure conductors passed through the sensor window are insulated to system voltage U F2 3 GF TRIP T TIME s FILTERING WA Littelfuse STARTCO Ge Ge MONITOR sw G G 8 0 19 DIA FIGURE 2 SE 105 Outline and Mounting Details
21. ntact Ratings 0 08 A 120 V ac or dc 0 50 A 24 Vdc Contact Configuration Form Reset Input 24 to 120 V ac or dc Isolated PWB Conformal Coating MIL 1 46058 qualified UL QMJU2 recognized Littelfuse STARTCO Certification CSA Canada and USA GR LR 53428 05 UL Listed LISTED Ground Fault Sensing and Relaying Equipment 4FX9 40889 Australia N11659 FCC NOTES Currents referred to primary of CT200 for prospective ground fault currents less than 4 000 A Typical maximum CT lead resistance to meet specified trip level accuracy The GROUND CHECK LED may flash when the GC loop trip resistance is near the trip level Applicable only on 240 Vac Supply Option E in the ordering information 2 G 4 5 2 CURRENT SENSORS Environment Operating Temperature 40 to 60 C 40 to 140 F Storage Temperature 55 to 80 C 67 to 176 F Humidity 85 Non Condensing CT200 Current Ratio 200 5 A Insulation 600 V Class Window Diameter 56 mm 2 2 Shipping Weight 1 kg 2 2 Ib CT200L Current Ratio 200 5 A Insulation 600 V Class Window Diameter 89 mm 3 5 Shipping Weight
22. ound Check Circuit Open Circuit Voltage Output Impedance Nominal Loop Current Induced ac Withstand Fuse Rating F2 Fuse Part Number Pull in Filter Pull in Time 25 Vac Continuous 120 Vac for 3 s 0 5 A 250 Vac Time Delay Littelfuse 313 500 or Bussman MDA 1 2 MDL 1 2 Chopper Rejection 1 56 12 13 D 050315 Trip 0 28 GC open 0 5 s GC to G short Trip Time Accuracy 10 30 GC Loop Trip Resistance 40 100 Trip Non Latching Latching with Option L Output Relay CSA UL Contact Ratings 1 mA to 4 A Resistive 240 Vac or 28 Vdc Supplemental Contact Ratings Make carry 0 2 s 10A Carry continuous 4A Break descen tete 20 W Resistive 10 W Inductive L R 0 04 s d c coii 960 Resistive 700 Inductive 0 4 Subject to maximums of 4 and 240 V ac or dc Contact Configuration N O Form Fuse Rating Fl1 4 0 A 250 Vac Time Delay Fuse Part Number Littelfuse 313004 or Bussman MSL 4 Operating Mode UV Undervoltage Fail Safe or SH Shunt Trip Non Fail Safe Remote Indication 12 Vdc E Current Sink 560 O Internal Optional RK 13 Module Co
23. r terminal block and is compatible with the RK 102 RK 105 RK 105I See Figs 1 and 10 Contact closes when the GC LED is on and contact K2 closes when the GF LED is on 3 5 PARALLEL PATH ISOLATION A PPI 600V can be used for parallel path rejection A PPI 600V will also eliminate intermachine arcing and prevent stray ac and dc currents from flowing in the monitored ground wire See Figs 11 and 12 See Technical Note GC 10 Parallel Path Isolator at www littelfuse com relayscontrols or contact Littelfuse Startco for application details SE 105 Ground Fault Ground Check Monitor Page 6 Rev 13 D 050315 3 6 GROUND FAULT TESTING Use CT primary current injection to test the ground fault circuit Fig 13 shows test circuits using the SE 400 Ground Fault Relay Test Unit and the SE 100T Ground Fault Relay Tester The SE 400 has a programmable output of 0 5 to 9 9 A for a duration of 0 1 to 9 9 seconds The SE 100T has LO and HI outputs for 5 and 15 A resistance grounded systems A test record form is provided in Section 8 of this manual Record the test results and test dates on this form to meet the requirements of the National Electrical Code NEC Retain the form so that the test data can be made available to the authority having jurisdiction 4 COMPATIBILITY The SE 105 is a direct replacement for the SEL 100 SEL 100TD SE 101 SE 101S SE 102 SE 102S SE 102M SE 103 and SE 103S Terminal designations
24. ts are to be conducted by qualified personnel a Evaluate the interconnected system in accordance with the overall equipment manufacturer s detailed instructions b Verify proper location of the ground fault current transformer Ensure the cable or bus passes through the ground fault current transformer window and that the grounding conductors or shields are not encompassed by the ground fault current transformer in such a way as to cause ground fault current to be missed These checks can be done visually with knowledge of the circuit involved The connection of the current transformer secondary to the SE 105 is not polarity sensitive Verify that the system is correctly grounded and that alternate ground paths do not exist that bypass the current transformer High voltage testers and resistance bridges can be used to determine the existence of alternate ground paths d Verify proper reaction of the circuit interrupting device in response to a simulated or controlled ground fault current To simulate ground fault current use CT primary current injection Fig 13a shows a test circuit using an SE 400 Ground Fault Relay Test Unit The SE 400 has a programmable output of 0 5 to 9 9 A for a duration of 0 1 to 9 9 seconds Set the test current to 0 6 2 3 or 4 6 A for SE 105 units set at 0 5 2 0 or 4 0 A respectively Fig 13b shows a test circuit using SE 100T Ground Fault Relay Tester The SE 100
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