SE-701 Ground-Fault Monitor Manual Rev 10-C-072414
Contents
1. FIGURE 5 EFCT 2 Outline and Mounting Details Littelfuse Page 9 STARTCO SE 701 Ground Fault Monitor Rev 10 C 072414 ie J L OR 8 32 TAP 1 eh hal M5 SCREWS TOP MOUNTING DETAIL 25 0 26 5 0 98 1 04 110 0 MAX r SE CS30 26 CURRENT SENSOR Qu PA Littelfuse STARTCO 4 0 0 16 RECESSED FOR 7 mm HEX NUT 3 0 0 12 DEEP NOTES DIMENSIONS IN MILLIMETRES INCHES PRESS MOUNTING FEET IN PLACE USING INSTALLATION TOOL PROVIDED DETAIL A MOUNTING SCREWS M4 OR 8 32 RoHS COMPLIANT EN 60044 1 COMPLIANT DETAIL A SE CS30 26 SHOWN FIGURE 6 EFCT 26 and SE CS30 26 Outline and Mounting Details WA Littelfuse Page 10 STARTCO SE 701 Ground Fault Monitor Rev 10 C 072414 20 5 0 81 IC N ka M5 SCREWS TOP MOUNTING DETAIL 25 0 30 0 Hoar R SE CS30 70 Qe FA Littelfuse START2. 2 5 VA 24 Vac 15 40 50 60 Hz Trip Level Range 1 to 99 CT Primary Rating in 1 increments 50 mA to 4 95 A with EFCT x Trip Time Settings 0 05 0 10 0 20 0 30 0 40 0 50 1 0 1 5 2 0 and 2 5 s 1 Accuracies Trip Level Largest of 5 of setting or 1 A input 1 setting 10 15 mA 2 99 setting 10 mA 5 A and EFCT inputs 1 setting 35 60 mA 2 99 setting 35 mA Trip Time 5 of setting 25 20 ms minimum Trip Inhibit eene asti Class I E ana ARE Class II Level dices antics 11 x CT Primary Rating Input Algorithms DFT or Peak DFT 3 dB Frequency Resp 32 to 86 Hz Peak 3 dB Frequency Resp 20 to 420 Hz dion tte 1 or 5 Secondary Rating or CT Detection Open Circuit Detection with EFCT x FA Littelfuse SE 701 Ground Fault Monitor STARTCO Thermal Withstand Continuous 5 x CT Secondary Rating 1 80 x CT Secondary Rating 5 A input 0 01 O l A input 0 05 Q EFCT input 20 Analog Output 0 to 5 5 V 100 CT Rating
3. ADJUSTMENT KNOBS ARE REMOVABLE BOTTOM CONFIGURATION SWITCHES SHOWN IN DEFAULT POSITION FIGURE 1 SE 701 Outline and Mounting Details Littelfuse 5 STARTCO SE 701 Ground Fault Monitor Rev 10 C 072414 SE 701 5 SEM 1 PHASE 5A 3 PHASE A4 WIRE CONNECTION n CONNECTION XXX 1 OR ISOLATED CONTACTS CS30 X 1 1 15 REMOTE RESET T SE 701 RS pes LEAKAGE ANALOG s OUTPUT PGA 05CV PGA 0500 INDICATION Technical Note CT 01 N 6 PWR provides additional JEN information on CT selection Y inne Ves 1 RELAY CONTACTS SHOWN WITH SE 701 CONNECTIONS 5 DE ENERGIZED 3 PHASE 3 WIRE CONNECTION FIGURE 2 Typical Connection Diagrams b W 1 A START 1 5 1 1 EMOTE RESET 7 NOTES LEAKAGE 8 1 RELAY CONTACTS SHOWN WITH SE 701 DE ENERGIZED PGA 05CV PGA 0500 INDICATION PWR Nm v INHB x 8 TRIP FIGURE 3 Typical Three Phase Starter Connection Littelfuse STARTCO SE 701 Ground Fault Monitor 4 SE 701 COMPATIBILITY The current SE 701 has been enh
4. 18 DIA 8 7 0 34 DIA 4 3 0 17 RAD 7 ALTERNATE CONFIGURATIONS WITH COVER REMOVED LATCH MONITORTO BRACKET INSERT BRACKET THROUGH FRONT OF PANEL CUTOUT AND SECURE WITH FLAT WASHERS AND LOCKNUTS PROVIDED CONNECT WIRING TO TERMINALS ATTACH COVER USING SECURITY SCREWS OR THUMB SCREWS PROVIDED NOTES PANEL CUTOUT DETAIL 60 Panel Mount Adapter DIMENSIONS IN MILLIMETRES INCHES MEETS NEMAS IP53 INCLUDESTWOTR20TAMPER RESISTANT TORX SCREWS M4 0 7x16 mm INSTALLED ANDTWO THUMB SCREWS FA Littelfuse STARTCO SE 701 Ground Fault Monitor Page 14 Rev 10 C 072414 R1 25 0 049 NOTES 1 CONVERSION KIT FOR 0 5 V ANALOG OUTPUT SEE PGA 0500 DOCUMENTATION 2 DIMENSIONS IN MILLIMETRES INCHES PGA 0500 ANALOG CURRENT METER FRONT FIGURE 11 PGA 0500 Analog Percent Current Meter 5 TECHNICAL SPECIFICATIONS Supply OU Option 5 VA 120 to 240 Vac 20 55 50 60 Hz 2 W 100 to 240 Vdc 20 25 OD Option 2 W 12 to 30 Vdc 20 25 OT Option 2 W 40 to 55 Vdc 20 25 03 Option
5. 5 000 m 16 404 maximum PWB Conformal Coating MIL 1 46058 qualified UL QMJU2 recognized Surge Withstand ANSI IEEE 37 90 1 1989 Oscillatory and Fast Transient Vibration ssssee EN60255 21 1 Vibration Shock and Seismic EN60255 21 2 Shock and Bump EMC Tests Verification tested in accordance with EN 50263 2000 Radiated and Conducted Emissions CISPR 11 2009 CISPR 22 2008 EN55022 2010 Class A Current Harmonics and Voltage Fluctuation IEC 61000 3 2 and IEC 61000 3 3 Class A Electrostatic Discharge TEC 61000 4 2 6 kV contact discharge direct and indirect 8 kV air discharge Radiated RF Immunity TEC 61000 4 3 10 V m 80 1000 MHz 80 AM 1 kHz 10 V m 900 MHz 200 Hz pulse modulated Page 16 Rey 10 C 072414 FA Littelfuse STARTCO SE 701 Ground Fault Monitor Fast Transient Surge Immunity Conducted RF Immunity Magnetic Field Immunity Voltage Interruption Power Frequency 1 MHz RFI Compliance 6100044 4 kV on AC mains and I O lines IEC 61000 4 5 Zone B 1 kV differential mode 2 kV common mode 61000 4 6 10 V 0 15 80 MHz 80 AM 1 kHz IEC 61000 4 8 50 Hz and 60 Hz 30 and 300 A m TEC 61000 4 11 TEC
6. 61000 4 29 0 for 5 10 20 50 100 amp 200 ms 3x each IEC 61000 4 16 Zone A differential mode 150 Vrms Zone A common mode 300 Vrms IEC 61000 4 18 1 kV differential mode line to line 2 5 kV common mode FCC Part 15 Subpart B Class A Unintentional Radiators Certification CSA Canada and USA She LR 53428 C US UL Listed LISTED Ground Fault Sensing and Relaying Equipment 4FX9 E340889 Australia N11659 FCC FE CE European Union Complies to 61010 1 2001 ou Edition EN 61010 1 2001 2 Edition Safety Requirements for Electrical Equipment for Measurement Control and Laboratory Use Part 1 NOTES Over operating temperature range of 40 to 60 C 40 to 140 F CT accuracy not included 9 Trip time at 3 x trip level setting from the first peak For maximum lead resistance of 1 Q 6 ORDERING INFORMATION SE 701 0 L Conformal Coating Blank Partial Conformal Coating CC Full Conformal Coating Supply 3 24 Vac Supply U Universal 120 240 Vac Vdc Supply D 12 24 Vdc Supply T 48 Vdc Supply EEGCI I a edes Earth Fault CT 5 A primary rating 82 mm 3 2 window aunt Flux Conditioner for EFCT 1 70 mm 2 7 window 2 Earth Fault CT with Flux Conditioner 5 A primary rating 139 mm 5 5 window EECT226 deeem Earth Fau
7. Output Impedance 220 0 M Front Panel Button and Remote N O Momentary Contact Functional Test Front Panel Button Output Relay Contact Configuration Isolated N O and N C Operating Mode Fail Safe or Non Fail Safe CSA UL Contact Rating 8 A General Use 250 Vac 8 A Resistive 30 Vdc 0 25 HP 120 240 Vac Supplemental Contact Ratings Carry Current 8 A maximum Break 30 Vdc 240 W Resistive 170 W Inductive LR 7 ms 120 24 W Resistive 17 W Inductive L R 7 ms AG sige eee ees 2 000 VA Resistive 875 VA Inductive PF 0 4 Subject to maximums of 8 A and 250 Vac 30 Vdc or 200 mA at 120 Vdc Trip Mode sss Latching or Autoreset Termitials ries Wire clamping 24to 12 AWG 0 2 to 2 5 mm conductors Dimensions Height 75 mm 3 07 Width Lien 55 mm 227 Depth eese 113 mm 4 57 Shipping Weight 0 45 kg 1 Ib Page 15 Rev 10 C 072414 Environment Operating Temperature Altitude lt 1 000 m 3 281 40 to 60 C 40 to 140 F 3 000 m 9 843 40 to 55 C 40 to 131 F 5 000 m 16 404 40 to 50 C 40 to 122 F Storage Temperature 55 to 80 C 67 to 160 F Humidity 85 Non Condensing Alt tude
8. SE 701 Ground Fault Monitor Rev 10 C 072414 NOTES DIMENSIONS IN MILLIMETRES INCHES MOUNTING SCREWS M4 OR 8 32 PRESS MOUNTING FEET IN PLACE USING INSTALLATION TOOL PROVIDED RoHS COMPLIANT EN 60044 1 COMPLIANT 2 E M5 SCREWS TOP MOUNTING DETAIL 25 0 30 0 0 98 1 18 ge EFCT 1 EARTH FAULT CT 500 v CLASS INSULATION CLASS A Littelfuse vu 5 0 0 20 AA jj RECESSED FOR NZ CONDITIONER 77 8 mm HEX NUT X eae Of 1 0 0 04 DEEP 138 0 MAX FIGURE 4 EFCT 1 Outline and Mounting Details Littelfuse Page 8 STARTCO SE 701 Ground Fault Monitor Rev 10 C 072414 NOTES DIMENSIONS IN MILLIMETRES INCHES MOUNTING SCREWS OR 10 32 RoHS COMPLIANT EN 60044 1 COMPLIANT 215 0 8 46 26 5 162 0 1 04 6 38 M5 OR 10 32 TAP M5 SCREWS TOP MOUNTING DETAIL 25 0 31 0 0 98 1 22 EFCT 2 EARTH FAULT GT C Eum 236 MAX 5 50 FLUX CONDITIONER INCLUDED BONDING SCREW
9. detection circuit the circuit will trip the TRIP LED will light and the output relay will operate If high current inhibit has been selected the INHB LED will light 2 3 FRONT PANEL INDICATION 2 3 1 POWER The green LED labelled PWR indicates the presence of supply voltage 2 3 2 TRIP The red LED labelled TRIP indicates a trip A solid red LED indicates a ground fault trip A flashing LED Page 2 Rey 10 C 072414 indicates a trip initiated by a CT fault Two fast flashes indicate a diagnostic trip See Section 2 5 2 3 3 TRIP INHIBIT The yellow LED labelled INHB indicates that output relay operation was inhibited during a high current ground fault See Section 2 1 2 When a ground fault trip occurs during a high current ground fault both the TRIP and INHB LED s will be ON Inhibit indication is reset when the ground fault trip is reset Inhibit operation and indication will not respond if the trip inhibit switch is in the OFF position 2 4 ANALOG OUTPUT The non isolated 0 to 5 V analog output indicates ground fault current sensed by the ground fault CT The output is 5 V when ground fault current is 100 of the CT primary rating Use a PGA 0500 Analog Percent Current Meter with the PGA 05CV Voltage Converter to indicate ground fault current See Figs 2 3 and 11 2 5 SELF DIAGNOSTICS A diagnostic trip is indicated by two fast flashes of the TRIP LED It can be caused by a diagnostic problem detected by the watchdo
10. the circuit under test has reacted properly Correct any problems and re test until the proper reaction is verified e Record the date and the results of the test on the attached test record form NOTE Do not inject test current directly into CT input terminals 1 2 3 4 and 5 a USING SE 400 FROM POWER SOURCE Page 16 Rev 10 C 072414 REMOTE b USING SE 100T FROM POWER SOURCE REMOTE TEST FIGURE 12 Ground Fault Test Circuits wid Littelfuse Page 19 STARTCO SE 701 Ground Fault Monitor Rev 10 C 072414 TABLE 2 GROUND FAULT TEST RECORD DATE TEST RESULTS Retain this record for the authority having jurisdiction FA Littelfuse STARTCO SE 701 Ground Fault Monitor Page 20 Rev 10 C 072414 APPENDIX A SE 701 REVISION HISTORY MANUAL MANUAL PRODUCT REVISION RELEASE DATE REVISION REVISION NUMBER ON PRODUCT LABEL July 24 2014 10 C 072414 October 21 2013 10 B 102113 April 12 2013 10 A 041213 MANUAL REVISION HISTORY REVISION 10 C 072414 SECTION 4 Fig 8 updated SECTION 5 Update to include altitude and vibration specifications APPENDIX A Revision history updated REVISION 10 B 102113 SECTION 4 Fig 6 updated to include EFCT 26 and SE CS30 26 SECTION 5 Conformal coating specificati
11. 0 0 28 FIGURE 8 SE CS30 4 5 and 8 Current Sensors Littelfuse Page 12 STARTCO SE 701 Ground Fault Monitor Rev 10 C 072414 110 0 4 33 _ PANELTHICKNESS 1 6 0 06 TO 4 8 0 19 LITTELFUSE STARTCO GROUND FAULT MONITOR SE 701 PWR INHB TRIP LZ Littelfuse k FRONT VIEW SIDE VIEW 55 0 2 20 WIDE MONITOR INSTALLATION INSTRUCTIONS 1 REMOVE BEZEL AND LATCH MONITOR ON BRACKET 2 0 0 08 RAD MAXIMUM INSERT BRACKET THROUGH FRONT OF PANEL 4 0 0 16 DIA CUTOUT AND SECURE WITH FLAT WASHERS AND LOCKNUTS PROVIDED 8 7 0 34 DIA CONNECT WIRING TO TERMINALS 4 3 0 17 RAD INSTALL BEZEL USING 6 32 x 0 31 SCREWS ALTERNATE PROVIDED CONFIGURATIONS NOTE 1 DIMENSIONS IN MILLIMETRES INCHES PANEL CUTOUT DETAIL FIGURE 9 55 Panel Mount Adapter FA Littelfuse STARTCO SE 701 Ground Fault Monitor Page 13 Rev 10 C 072414 116 0 LITTELFUSE STARTCO GROUND FAULT MONITOR SE 701 PWR INHB TRIP BA Littelfuse 4 57 PANELTHICKNESS 1 6 0 06 TO 4 8 0 19 EM Y FRONT VIEW FIGURE 10 PMA BRACKET uM 55 0 2 20 WIDE MONITOR TRANSPARENT COVER NOTE 2 SIDE VIEW INSTALLATION INSTRUCTIONS 1 Dee 2 0 0 08 RAD 9 4 5 0
12. CO 138 0 MAX 5 0 0 20 RECESSED FOR 8 mm HEX NUT 1 0 0 04 DEEP 2 MOUNTING FOOT INSTALLATION DIMENSIONS IN MILLIMETRES INCHES NOTES a gt TOOL A PRESS MOUNTING FEET IN PLACE USING 2 INSTALLATION TOOL PROVIDED DETAIL 3 MOUNTING SCREWS M4 OR 8 32 RoHS COMPLIANT 5 EN 60044 1 COMPLIANT DETAIL A FIGURE 7 SE CS30 70 Current Sensor Littelfuse Page 11 STARTCO SE 701 Ground Fault Monitor Rev 10 C 072414 MOUNTING DETAIL NOTES SE CS30 84 OUTLINE X ET E DIMENSIONS IN MILLIMETRES INCHES MOUNTING SCREWS 5 OR 10 32 RoHS COMPLIANT CE COMPLIANT DIMENSIONS SE CS30 4 SE CS30 5 SE CS30 8 95 0 3 74 130 0 5 12 200 0 7 87 175 0 6 89 218 0 8 78 309 0 12 17 158 0 6 22 203 0 7 99 290 5 11 44 141 0 5 55 178 0 7 01 267 5 10 50 82 0 3 22 103 5 4 07 150 0 5 90 32 0 1 26 32 0 1 26 34 0 1 34 17 5 0 69 11 0 0 43 11 0 0 43 15 0 0 59 13 3 0 52 13 3 0 52 33 0 1 30 34 0 1 34 43 0 1 69 BOTTOM 9 0 0 35 11 0 0 43 11 5 0 45 40 0 1 57 40 0 1 57 50 0 1 97 5 3 0 21 7 0 0 28 7
13. WA Littelfuse STARTCO 3714 Kinnear Place Saskatoon SK Canada 57 0A6 Ph 306 373 5505 306 374 2245 www littelfuse com relayscontrols SE 701 MANUAL GROUND FAULT MONITOR Revision 10 C 072414 TCO LITTELFUSE STAR ROUND FAULT MONITOR G e o Copyright O 2014 by Littelfuse Startco All rights reserved Document Number PM 1040 EN Printed in Canada Littelfuse Page i STARTCO SE 701 Ground Fault Monitor Rev 10 C 072414 This page intentionally left blank Littelfuse STARTCO SE 701 Ground Fault Monitor TABLE OF CONTENTS SECTION PAGE 1 Introduction essere 1 LET General itc ete cdit eer 1 12 Current Sensor Selection 1 2 Operation niens erinnern 1 2 1 Configuration Switch Settings 1 2 1 1 Relay Operating Mode 1 2 1 2 Trip Inhibit 1 2 1 3 CT Verification 1 2 1 4 Filter 1 2 1 5 Reset Mode 1 2 2 Front Panel Controls 2 2 2 1 Ground Fault Trip Level 2 2 2 2 Ground Fault Trip Time 2 2 2 3 cire certe wu aqu 2 PT EMI vs aqa a Ga un u awia GS aa 2 23 Fron
14. anced with the addition of non volatile trip memory for the fail safe relay operating mode Prior to hardware revision 07 a mechanical flag was used instead of non volatile trip memory The current revision of the SE 701 can directly replace previous revision 00 to 06 units Beginning with hardware revision 09 CT verification must be enabled when used with an EFCT series earth fault CT Previous revision SE 701 units used with EFCT series CT s can operate with CT verification enabled or disabled See Section 2 1 3 The hardware revision number is listed on the SE 701 model serial number label affixed to the SE 701 enclosure The SE 701 generations are compared in Table 1 Page 6 Rev 10 C 072414 The SE 701 was previously available with SE 701 01 120 Vac and SE 701 02 240 Vac supply voltage options These have been discontinued An SE 701 0U 120 240 unit can directly replace an SE 701 01 or SE 701 02 TABLE 1 TRIP FEATURES COMPARISON HARDWARE REVISION 00 to 06 207 gt 09 LED trip indication Yes Yes Mechanical flag trip indication Yes No Non volatile trip memory No Yes Trip LED Off Trip LED On Device state after supply voltage Fail safe e Trip relay De energized ao tripped ground fault Trip LED Off Trip LED Off Non fail safe Trip relay De energized Trip relay De energized Trip flag Red CT Detection must be ON for EFCT No No Yes Littelfuse Page 7 STARTCO
15. connection to terminal 9 for dielectric strength testing all inputs and outputs have ANSI IEEE C37 90 surge protection circuits that conduct above 300 Vac See Figs 4 5 and 6 for EFCT series dimensional drawings and Figs 6 7 and 8 for the SE CS30 series current sensors Page 3 Rev 10 C 072414 Littelfuse Page 4 STARTCO SE 701 Ground Fault Monitor Rev 10 C 072414 0 34 CONFIGURATION SWITCHES RESET MODE LATCHING AUTORESET FILTER SELECTION VARIABLE OR WITCHES FREQUENCY FREQUENCY RESET MODE CT VERIFICATION OFF ON tarcHine I Auroneser FILTER SELECTION preauency FREQUENCY TRIP INHIBIT OFF ON LI CT VERIFICATION or T ov RELAY OPERATING MODE FAIL SAFE NON FAIL SAFE TRIP INHIBIT orr T on RELAY OPERATING MODE 1 FAILS SAFE NON FAIL SAFE 1 1 si s2 RS O ey eer eg a CT EFCT RESET ANALOG OUTPUT 123 45 6 7 8 MOUNTING DETAIL 118 0 NOTE 3 4 65 110 0 4 33 LITTELFUSE STARTCO GROUND FAULT MONITOR SE 701 PWR INHB TRIP E Littelfuse SIDE NOTES DIMENSIONS IN MILLIMETRES INCHES 9 10 11 1 13 1 4 15 16 14 MOUNTING SCREWS M4 OR 8 32 oo OVERALL DIMENSION WHEN MOUNTED DINEN50022 35 mm x 75 mm TOP HAT RAIL
16. g timer or from an incorrect reading from non volatile memory Press RESET or cycle supply voltage If the problem persists contact Littelfuse Startco Littelfuse STARTCO SE 701 Ground Fault Monitor 3 INSTALLATION NOTE Mounting terminal block connections and wiring must conform to applicable local electrical codes Check all applicable codes prior to installation An SE 701 can be surface or DIN rail mounted See Fig 1 Panel mounting requires a PMA 55 or PMA 60 Panel Mount Adapter See Figs 9 and 10 Use terminal 11 L1 as the line terminal on ac supply systems or the positive terminal on dc supply systems Use Terminal 10 L2 N as the neutral terminal on ac systems or the negative terminal on dc systems Connect terminal 9 to ground Pass the phase conductors through the CT window for 4 wire and single phase systems also pass the neutral conductor through the CT window as shown in Figs 2 and 3 Do not pass ground conductors through the CT window In applications that require shields or drain wires to pass through the CT window return them through the CT window before connecting them to ground If a ground fault CT with a 5 A secondary is used connect it to terminals 2 and 3 terminals and 3 with a 1 secondary and ground terminal 3 If an EFCT x is used connect it to terminals 4 and 5 connect the shield to terminal 5 and ground terminal 5 Set configuration switch 3 to ON Remove the
17. h selectable algorithms for fixed frequency or variable frequency applications and an inhibit that can be enabled to prevent the output relay from operating during a high current ground fault Ground fault current is sensed by a current transformer Core balance zero sequence current sensors CT s are most commonly used Bus bar or toroid style CT s can also be used on the neutral to ground connection See Fig 2 in Technical Note CT 08 available at www littelfuse com The trip level of the ground fault circuit is switch selectable in 1 increments from to 99 of the CT rating 1 2 CURRENT SENSOR SELECTION An SE 701 has inputs for 1 5 A and 50 mA secondary CT s Choose a CT that provides the required ground fault trip range For ground fault detection the ground fault trip level must be substantially below the prospective ground fault current In a solidly grounded system prospective ground fault current is similar to phase fault current In a resistance grounded system prospective ground fault current is defined by the neutral grounding resistor let through current rating In a solidly grounded system protection against arcing ground faults requires a ground fault CT that will detect low level fault current but not saturate up to the operating value of the system overcurrent protection In general immunity to saturation is proportional to CT mass To eliminate nuisance tripping surge current must not saturate the CT Fo
18. ht times the CT primary rating This feature allows overcurrent protection to operate in applications where the ground fault current can be larger than the interrupting capacity of the device tripped by the SE 701 2 1 3 CT VERIFICATION Switch 3 is used to enable CT verification with an EFCT series CT In the ON position a trip will occur if the CT is disconnected Switch 3 must be in the OFF position when an EFCT series CT is not used and must be in the ON position when an EFCT is used 2 1 4 FILTER SELECTION Switch 4 is used to select the filtering algorithm for a fixed frequency 50 60 Hz variable frequency application The FIXED FREQUENCY setting uses a DFT filter that allows lower trip levels to be used by rejecting harmonics that can cause nuisance tripping The VARIABLE FREQUENCY setting uses a peak detection algorithm with a wider bandwidth for fault detection in variable frequency drive applications 2 1 5 RESET MODE Switch 5 is used to select autoreset or latching trips See Section 2 2 3 Littelfuse STARTCO SE 701 Ground Fault Monitor 2 2 FRONT PANEL CONTROLS 2 2 1 GROUND FAULT TRIP LEVEL The CT PRIMARY selector switches are used to set the ground fault trip level as a percentage of the CT primary rating In tripping systems a ground fault trip level of 10 to 20 of the prospective ground fault current is often used In alarm only systems a value of 50 of the prospective ground fault current is
19. inal results of the performance tests The following ground fault system tests 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 sensor Ensure the cables pass through the ground fault current sensor window This check can be done visually with knowledge of the circuit The connection of the current sensor secondary to the SE 701 is not polarity sensitive c Verify that the system is correctly grounded and that alternate ground paths do not exist that bypass the current sensor 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 12 a 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 12096 of the SE 701 setting Fig 12 b shows a test circuit using an SE 100T Ground Fault Relay Tester The SE 100T 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 sensor window for at least 2 5 seconds Verify that
20. lt CT 5 A primary rating 26 mm 17 window All EFCT s include 6 m 19 2 22 AWG 0 3 mm shielded cable FA Littelfuse SE 701 Ground Fault Monitor STARTCO SE CS30 26 Current Sensor 26 0 mm 1 02 window SE CS30 70 Current Sensor c w Flux Conditioner 69 8 mm 2 75 window SE CS30 4 Current Sensor c w Flux Conditioner 95 0 mm 3 74 window SE CS3055 coe E Current Sensor c w Flux Conditioner 130 0 mm 5 127 window SE CS30 8 Current Sensor c w Flux Conditioner 200 0 mm 7 877 window SSHT 101 EO Current Sensor 100 A primary rating 40 mm 1 6 window 5SHT 151 E Current Sensor 150 A primary rating 40 mm 1 6 window 5SHT 500 E Current Sensor 50 A primary rating 40 mm 1 6 window 7SHT 301 E9 ss Current Sensor 300 A primary rating 64 mm 2 5 window TSHT 401 E Current Sensor 400 A primary rating 64 mm 2 5 window 0500 Analog Percent Current Meter PGA 05CV included Panel Mount Adapter NEMA 1 PMA 60 a anu uuu usa Panel Mount Adapter NEMA 3 IP53 Includes two TR20 tamper resistant Torx screws and two thumb scre
21. often used To avoid sympathetic tripping the trip level must be above the charging current of the protected feeder A 0 selection provides protection at 1 2 2 2 GROUND FAULT TRIP TIME The SE 701 has a definite time trip characteristic The TIME s selector switch is used to set the ground fault trip delay time for coordination with upstream and downstream ground fault devices Coordination requires the same trip level for all ground fault devices in a system and the trip time to progressively increase upstream The amount of equipment removed from the system will be a minimum if the first ground fault device to operate is the one immediately upstream from the fault 2 2 3 RESET If the Reset Mode switch is in the LATCHING position a trip remains latched until the RESET button is pressed or the remote reset terminals are momentarily connected In the non fail safe mode cycling the supply voltage will also reset the SE 701 If the Reset Mode switch is in the AUTORESET position a trip will reset when the fault is removed The reset circuit responds only to a momentary closure so that a jammed or shorted button will not prevent a trip The front panel RESET button is inoperative when the remote reset terminals 6 and 7 are connected 2 2 4 TEST The TEST button is used to test the ground fault circuit the indication and the output relay When the TEST button is pressed for one second a test signal is applied to the ground fault
22. ons added FCC certification mark added SECTION 6 Updated ordering information with full conformal coating CC option APPENDIX A Revision history updated REVISION 10 A 041213 SECTION 3 Figs 2 and 3 updated to include PGA 05CV SECTION 4 Figs 7 8 and 9 added SECTION 5 Environment section updated to include Fahrenheit temperature range SECTION 6 Additional current sensors added to ordering information APPENDIX A Revision history added PRODUCT REVISION HISTORY REVISION 09 Firmware Improved operation of front panel test button
23. r low level ground fault protection use an EFCT 1 EFCT 2 or EFCT 26 earth fault CT with a 5 A primary rating However protection at this level might not be possible because of high surge current or prospective ground fault current For CT selection assistance see Technical Note CT 01 available at www littelfuse com relayscontrols Page 1 Rey 10 C 072414 2 OPERATION 21 CONFIGURATION SWITCH SETTINGS See Fig 1 2 1 1 RELAY OPERATING MODE Switch is used to set the operating mode of the output relay In the fail safe mode the output relay energizes when the ground fault circuit is not tripped In the fail safe mode non volatile memory retains the trip status of the SE 701 If tripped and the supply voltage is cycled the SE 701 will remain tripped with the trip relay de energized and the TRIP LED on until reset In the non fail safe mode the output relay energizes when a ground fault trip occurs In the non fail safe mode trip status is not retained in non volatile memory 2 1 2 TRIP INHIBIT Switch 2 is used to select Class I or Class II operation In the OFF position high current trip inhibit is off for Class I operation In the ON position high current trip inhibit is on for Class II operation If high current trip inhibit is on and ground fault current escalates above eleven times the CT primary rating before the ground fault circuit trips the output relay will not operate until ground fault current falls below eig
24. t Current Meter 14 12 Ground Fault Test Circutfts 18 LIST OF TABLES TABLE Pace 1 Trip Features Comparison 6 2 Ground Fault Test Record 19 DISCLAIMER Specifications are subject to change without notice Littelfuse Startco is not liable for contingent consequential damages or for expenses sustained as a result of incorrect application incorrect adjustment or a malfunction WA Littelfuse Page it STARTCO SE 701 Ground Fault Monitor Rev 10 C 072414 This page intentionally left blank Littelfuse STARTCO SE 701 Ground Fault Monitor 1 INTRODUCTION 1 1 GENERAL The SE 701 is a microprocessor based ground fault monitor for resistance grounded and solidly grounded systems It is uniquely suited for use on systems with significant harmonic content Its output relay can operate in the fail safe or non fail safe mode for undervoltage or shunt trip applications The SE 701 has one output relay with isolated normally open and normally closed contacts for use in independent control circuits Additional features include LED trip power and inhibit indication autoreset or latching trips with front panel and remote reset trip memory test button self diagnostics 0 to 5 V analog output inputs for ground fault current sensors CT verification for EFCT series current sensors digital selector switches switc
25. t Panel Indication 2 2 9 T t rere eene 2 232 TED iiir rit etii Rees edel 2 233 Trip sees 2 2 4 Analog 1 2 2 5 Self Diagnostics 2 3 Installation eee 3 4 SE 701 Compatibility 6 5 Technical Specifications 14 6 Ordering Information 16 7 Warranty gunu sas eee 17 8 Ground Fault Performance Test 18 Appendix A SE 701 Revision History 20 Page ii Rev 10 C 072414 LIST OF FIGURES FIGURE Pace 1 SE 701 Outline and Mounting Details 4 2 Typical Connection Diagrams 5 3 Typical Three Phase Starter Connection 5 4 EFCT 1 Outline and Mounting Details 7 5 EFCT 2 Outline and Mounting Details 8 6 EFCT 26 and SE CS30 26 Outline and Mounting Details 9 7 SE CS30 70 Current Sensor sss 10 8 SE CS30 4 5 and 8 Current Sensors 11 9 PMA 55 Panel Mount Adapter 12 10 60 Panel Mount Adapter 13 11 PGA 0500 Analog Percen
26. ws PMA 3 uawan en nte Adapter Plate GES MCGG PMA 6 sse Adapter Plate FPL GFRM 15 Adapter Plate SE BBEVG itr Voltage Clamp Consult factory for custom mounting adapters NOTES 9 Includes mounting brackets Page 17 Rev 10 C 072414 7 WARRANTY The SE 701 Ground Fault 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 701 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 FA Littelfuse STARTCO SE 701 Ground Fault Monitor 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 f
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