Sensorform OFI-FLS User Manual Ver 0.02
Contents
1. This contains the necessary monitoring and detection circuits for detecting and validating fault as well as activating the fault indicator s Prior to installation the user can set the following parameters via DIP Switches on the controller board inside the unit e Trip Current Level e Timer Reset Period e Auto reset time after line re energisation e Fault response time The unit is mounted onto the overhead line using a hot stick The hot stick is fixed to the eyelet on the underside of the unit The unit is then brought up the overhead conductor The clamp part of the unit is positioned above the conductor and let rest on the conductor The unit is then manoeuvred in such away that the clamp is opened upwards sufficiently to allow the conductor to fall into the U shaped section of the housing Once this happens the spring mechanism of the clamp fixes the unit onto the line The hot stick can now be removed The unit is designed to operate in the harsh environment of medium voltage overhead line networks 1 38kV Suparule 5 Ltd Page 6 of 28 DCF1497 v0 02 Sensorform OFI 3 3 Current Sensor The integrated current sensor uses Suparule s own patented PMCS Planar magnetic Current Sensor technology This technology ensures excellent accuracy as well as high rejection of interference from external magnetic fields e g from adjacent conductors in an open jaw form factor 3 4 Manual Test Reset Function The Senso2. inactive The main features of the Sensorform OFI product include Powered from internal long life Lithium battery Ultra bright LED and Mechanical Flag Primary indicators 360 viewing angle High Visibility 50m by day 200m at night Automatic reset of fault on re energisation of line Automatic reset of fault after user selectable time period Manual reset of fault remotely with magnet IP65 rated rugged enclosure I509001 2008 based Quality Assurance Suparule S Ltd Page 4 of 28 OFI DCF1497 v0 02 2 Primary Indicators Two different types of primary indicator are included on the unit LED Four High brightness red flashing Light Emitting Diodes arranged in a circle around the unit for 360 visibility Flag Mechanical flag indicator normally black red black when tripped semi spherical in shape for 360 visibility 3 Description Conductor Jaw Enclosure Top Test Reset Point Clamp LEDs __ Flag Enclosure Eyelet Base Suparule S Ltd Page 5 of 28 OFI DCF 1497 v0 02 Sensorform OFI The Sensorform OFI consists of the following components 3 1 Primary Indicators Two different types of primary indicator are included on the unit LED Four High brightness red flashing Light Emitting Diodes arranged in a circle around the unit for 360 visibility Flag Mechanical flag indicator normally black red black when tripped semi spherical in shape for 360 visibility 3 2 Control Circuit
3. set the following parameters e Trip Current Level e Timer Reset Period e Auto reset time after line re energisation e Fault response time The above parameters are set via DIP Switches mounted on the controller board inside the unit WARNING Observe precautions for handling electrostatic sensitive devices Access to the DIP switches is achieved by opening the unit as follows 1 Unscrew and remove the four fixing screws as shown in Figure 4 1 below Se j A r Fig 4 1 Suparule S Ltd Page 9 of 28 OFI DCF1497 v0 02 Sensorform OFI Remove the Top Enclosure by sliding it upwards as shown in Fig 4 2 below Fig 4 2 3 Locate the row of DIP Switches as shown in Figure 4 3 below There are four sets of DIP switches S1 S2 S3 and S4 The function of each set is as per the following Suparule S Ltd Page 10 of 28 DCF1497 v0 02 Sensorform OFI S1 Trip Current Level Suparule S Ltd Page 11 of 28 DCF1497 v0 02 Sensorform OFI S2 Timed Reset Period Suparule S Ltd Page 12 of 28 DCF1497 v0 02 Sensorform OFI S3 Response Time Suparule S Ltd Page 13 of 28 OFI DCF 1497 v0 02 Sensorform OFI 4 4 S4 Reset Time after Power Return Suparule S Ltd Page 14 of 28 OFI DCF 1497 v0 02 Sensorform OFI 5 Installation amp Removal The OFI can be installed onto a medium voltage line using an insulated univers
4. OFI product the accompanying product documentation Disclaimer To the maximum extent permitted by the laws applicable in the Republic of lreland in no event shall Suparule Systems be liable to the user for any special indirect consequential or similar damages including any loss of profits or lost data arising out of the use or inability to use the product or documentation Suparule S Ltd Page 27 of 28 DCF1497 v0 02 Suparule S Limited www suparule co
5. RN cscccececscecececceccecececececcecececesecescececuecs 22 6 3 MANUAL RESET e eee e eee e eee eee eee aaa 23 6 4 TIMED RESET 23 7 TESTING suie a woldncuve sane ctussacacnvesevecdwecnbecevesduecnussetecnvesevecdvecneeceteseeesase 24 8 SPECIFICATIONS 25 9 WARRANTY AER RC PTD RETORIC NP RI CR IA NI TIR 26 Suparule S Ltd Page 2 of 28 OFI DCF1497 v0 02 Sensorform OFI Safety Notice Review the following safety precautions to avoid injury and prevent damage to this product or any products connected to it PRECAUTIONS WARNING Use extreme caution during the installation and use of the Sensorform OFI product as high voltages and currents may be present Please read instruction information carefully WARNING Observe precautions for handling Electrostatic Sensitive Devices e This product must be installed and used only by qualified personnel that are familiar with practicing applicable safety precautions e Wear necessary protective clothing and gloves as required e Always inspect the OFI unit for possible damage before installing the product Do not use the product if damaged e f the Sensorform OFI is not used in a manner specified the protection afforded by the equipment may be impaired e Static Electricity can damage sensitive electronic parts inside the unit Any accumulated charge on the body of the human operator should be discharged first before openi
6. al hot stick The line may be de energised or live during installation WARNING Installation or removal of the OFI onto or from a live line should ONLY be carried out by suitably qualified and trained live working personnel 5 1 Installation Install the OFI onto the overhead line as follows 1 Place the OFI on a flat surface as in Figure 5 1 Fig 5 1 Suparule S Ltd Page 15 of 28 DCF1497 v0 02 Sensorform OFI 2 Release and open the hook on the hot stick as in Figure 5 2 Fig 5 2 3 Place the open hook into the eyelet at the base of the OFI as in Figure 5 3 Fig 5 3 Suparule S Ltd Page 16 of 28 DCF1497 v0 02 Sensorform OFI 4 Close the hook on the hot stick and pull it back into the hot stick shaft such that the OFI is locked firmly into position at the top of the hot stick as shown in Figure 5 4 Fig 5 4 5 Place the OFI onto the overhead line such that the clamp rests on the line as shown in Figure 5 5 Fig 5 5 Suparule S Ltd Page 17 of 28 DCF1497 v0 02 Sensorform OFI 6 Carefully pull down on the hot stick such that the clamp opens upwards allowing the line to move up over the top of OFI and into the open jaw section as shown in Figures 5 6a and 5 6b Fig 5 6a Fig 5 6b Suparule S Ltd Page 18 of 28 DCF1497 v0 02 Sensorform OFI 7 Once the OFI is clamped onto the line with the line positioned in the
7. base of the open jaw section release the hook on the hot stick 8 Open the hook on the hot stick and carefully remove it from the eyelet on the OFI as shown in Figure 5 8 Fig 5 8 Suparule S Ltd Page 19 of 28 DCF1497 v0 02 Sensorform OFI 5 2 Removal To remove the OFI from the overhead line carry out the following 1 Bring the hot stick with hook extended and open to the base of the OFI as shown in Figure 5 8 above 2 Insert the hook into the eyelet on the base of the OFI close the hook on the hot stick and pull it back into the hot stick shaft such that the hot stick is locked firmly into position at the base of the OFI as shown in Figure 5 66 above Pull the hot stick down carefully such that the clamp opens and frees the OFI from the overhead line as shown in Figures 5 9 and 5 10 below Fig 5 9 Suparule S Ltd Page 20 of 28 DCF1497 v0 02 Sensorform OFI Fig 5 10 Suparule S Ltd Page 21 of 28 OFI DCF 1497 v0 02 Sensorform OFI 6 Operation During normal operation the unit is in standby mode In this mode the unit is drawing minimal current from its internal battery in order to prolong the life of the battery as much as possible All the time during in this standby mode the unit is monitoring the level of current sensed by the current sensor It is also monitoring the state of the magnetic switch If a fault is detected or if the magnetic switch dete
8. by activating the internal magnetic switch This is done by fixing the Test Reset Magnet to the top of a hot stick and positioning the end of the magnet to the Test Reset point indicated on the side of the OFI unit for a minimum of 2 seconds See Fig 3 4 above The magnetic field from the magnet is detected by the magnetic switch mounted on the controller board inside the OFI causing it to reset 6 4 Timed Reset neither the network power returns nor a Manual Reset is implemented the OFI unit will remain in the fault mode for a duration set by the Timed Reset Period DIP switch setting after which it will reset Suparule S Ltd Page 23 of 28 DCF1497 v0 02 Sensorform OFI 7 Testing To check the trip current level of the Sensorform OFI the following test should be conducted 1 Mount the unit on a conductor connected to an AC Current Source 2 Generate a fault current in the conductor less than 90 of the current level set by the Trip Current Level DIP switch setting For example for the trip current level of 100A set the fault current to less than 90 This should not trip the unit 3 Generate a fault current greater than 110 of the current level set by the Trip Current Level DIP switch setting e g for a trip current level of 100A set the fault current to more than 110A for a period of 1 second or more This should trip the unit 4 Reset the unit using by positioning the Test Reset Magnet close to the
9. cts the Test Reset Magnet the unit reacts as follows 6 1 Fault Detection The Sensorform OFI control unit continuously monitors the output signal from the integrated current sensor In the event of a fault occurring i e the level of current measured exceeds the Trip Current level DIP switch setting and the fault is present for the minimum time period set by the Response Time DIP switch setting then the unit goes into fault mode and indicates the fault by switching the flag to Red Black mode and starting to flash the LEDs The on board circuitry analyses the voltage produced to determine that it is a valid earth fault signal as opposed to a transient spike or glitch By ensuring the fault current is present for a minimum of the Response Time all current spikes and glitches are ignored The OFI unit will remain in fault mode until one of the following occurs e the power returns to the overhead line e remote manual reset e atime equivalent to the Timed Reset Period elapses 6 2 Reset on Power Return In the case of the power returning to the line this is detected by the current sensor measuring a current above the minimum nominal current level After this has been the detected for a minimum time equivalent to that set by the Reset Time after Power Return DIP switch setting the unit resets Suparule S Ltd Page 22 of 28 OFI DCF1497 v0 02 Sensorform OFI 6 3 Manual Reset The unit can be manually reset from the fault mode
10. ng the unit The discharge can be accomplished by putting a hand on a grounded surface or ideally by wearing a grounded antistatic wrist strap e The use of an antistatic strap prior to opening the unit is highly recommended e Education and training on ESD preventive measures is recommended Cleaning The Sensorform OFI unit is essentially a maintenance free product If the unit requires cleaning it should first be disconnected from all hazardous voltage sources The unit enclosure can then be wiped clean with a moist cloth Ensure the unit is completely dry prior to reconnection Suparule S Ltd Page 3 of 28 DCF1497 v0 02 Sensorform OFI 1 Overview The Sensorform OFI is a Fault Indicator that is designed to assist in the rapid location and isolation of faults on Medium Voltage overhead cable networks 1 38kV systems When the current in the phase is greater than the set threshold level a fault is indicated by means of the primary indicator s The Sensorform OFI mounts on each of the phase conductors the MV distribution system A short circuit fault is indicated both by 4 ultra bright LEDs Light Emitting Diode and a mechanical Flag Indicator integrated in the unit In an open ring network the path of the fault current from the feeding point to the fault location is marked by the triggered OFls The defective conductor segment is located between the last OFI that has been triggered and the first OFI which is still
11. rform OFI includes a manual Test Reset facility which can be used to both test the system and also to manually reset a fault state prior to the network power being restored or before the reset period times out The Test Reset circuit consists of a magnetically sensitive switch mounted inside the unit When the Test Reset Magnet is positioned against the side of th eunit such that th eend of th emagnet touches the Test Reset point marked on the side of th e OFI unit for a minimum of seconds the magnetic field associated with the magnet is picked up by the switch thereby activating it See Fig 3 4 below Fig 3 4 Suparule S Ltd Page 7 of 28 DCF1497 v0 02 Sensorform OFI To test the OFI the Test Reset switch is activated as described above This will activate both the primary indicator s on the OFI setting the four LEDs into flash mode at a rate of 1Hz and switching the mechanical flag to red black mode This test state will continue for a period of 60 seconds or until the Test Reset switch is activated again to terminate test mode To terminate a test the Test Reset switch is activated again by placing the end of the Test Reset magnet against the Test Reset point on the side of the OFI for a minimum of 2 seconds This will reset the primary indicator s to the off state Suparule S Ltd Page 8 of 28 OFI DCF 1497 v0 02 Sensorform OFI 4 User Selectable Settings The Sensorform OFI unit allows the user to
12. side of the OFI unit Suparule S Ltd Page 24 of 28 DCF1497 v0 02 Sensorform OFI 8 Specifications Trip current Minimum fault duration Primary Indication Fault LED Indicator Flash Rate Reset of Fault Network voltage range Conductor Size Range Fault current withstand Operating temperature range Operating humidity range Ingress Protection Altitude Dimensions Enclosure Material Mounting Weight Suparule S Ltd Page 25 of 28 User Selectable from 100 200 300 400 500 600 800 or 1000 A 10 User Selectable from 20 80 140 or 200 mS 20 Four High Intensity Red LEDs and Red Black Flag both with 360 visibility 0 5 Hz Automatic after a user selectable time of 10 16 24 or 30 seconds after power return or remote Activation of Manual Reset or after user selectable period of 1 2 3 4 5 6 7 or 8 hours 1 38kV AC 8 25mm diameter 25 for 1s 20 C to 70 C 0 100 RH IP65 5000 meters Diameter 115 mm Height 165mm Polycarbonate Spring loaded aluminum clamp 7509 OFI DCF1497 v0 02 Sensorform OFI 9 Warranty Suparule Systems Limited The Company warrants that the product is free from defects in materials and workmanship for a period of twenty four months 24 from the date of shipment Where defects occur in materials and or workmanship during the twenty four month period from date of shipment The Company will correct s
13. suparule Sensorform Sensorform Overhead Fault Indicator User Manual Sensorform OFI CONTENTS SAFETY NOTICE ccccccsoccsscccccccsccccccscccccescscccscsscscccseccccesoseccccssccecoseces 3 1 OVERVIEW aaa ag alee aia a aia 4 2 PRIMARY INDICATORS ccccccccccccccccccscccccccccccccccccccccccccccccccccccscecs 5 3 DES GRIP TAO ive 5 3 1 PRIMARY INDICATORS ne eee eee eee eee 6 3 2 CONTROL CIRCUIT ccceccccccccececccccecsceccecececcessscececesescscecsuscecececs 6 3 3 CURRENT SENSOR a paiete oa inalta ada 7 3 4 MANUAL TEST RESET FUNCTION ccccceccececccceccccececcececescecescsceseeceees 7 4 USER SELECTABLE SETTINGS cccccccccscccccccscccccccccccccccccccscccsces 9 4 1 S1 TRIP CURRENT LEVEL e eee eee eee eee eee 11 4 2 S2 TIMED RESET PERIOD eee e eee eee eee aaa 12 4 3 S3 RESPONSE TIME ce eee eee e eee eee eee aaa 13 4 4 54 RESET TIME AFTER POWER RETURN ececcececececcccececececcececcess 14 5 INSTALLATION amp REMOVAL cccccccccccccccccccccccccccccccccccccccccccsce 15 5 1 INSTALLATION sate taia nt tie alt Dita ai alai iati lit illa ala 15 5 2 REMOVAL ccccccecececcecececaccececsceceececsceceeececscsceetecscscecescscsceseececs 20 6 OPERATION 22 6 1 FAULT DETECTION 22 6 2 RESET ON POWER RETU
14. uch defects and the correction shall be in the form of repair or replacement of the defective items or components Such correction shall constitute a fulfillment of all of The Company s liabilities in respect to said items and components In no event shall The Company be liable for consequential damage Exclusions under the Warranty 1 Normal Wear and Tear Periodic maintenance repair and replacement of parts due to normal wear and tear are excluded from coverage 2 Abuse amp Misuse Defects or damage that result from a improper installation operation storage misuse or abuse accident or neglect such as physical damage cracks scratches etc to the surface of the product resulting from misuse b contact with hazardous substances or c other acts which are not the fault of The Company are excluded from coverage 3 Altered Products Products or Accessories with a serial numbers date tags that have been removed altered or obliterated b broken seals or that show evidence of tampering or misuse of the electronics are excluded from coverage Suparule S Ltd Page 26 of 28 DCF1497 v0 02 Sensorform OFI No Other Warranties To the maximum extent permitted by applicable law the Republic of Ireland The Company disclaims all other warranties either express or implied including but not limited to implied warranties of merchantability and fitness for a particular purpose with respect to the Sensorform
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