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SE-330AU MANUAL

NEUTRAL-EARTHING-RESISTOR MONITOR

Revision 4-I-101817

2017 Littelfuse Startco

Document Number: PM-1210-EN
Printed in Canada.

Summary of Contents for SE-330AU

Page 1: ...il techline littelfuse com www littelfuse com SE 330AU SE 330AU MANUAL NEUTRAL EARTHING RESISTOR MONITOR Revision 4 I 101817 Copyright 2017 Littelfuse Startco All rights reserved Document Number PM 12...

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Page 3: ...Calibration and Open Test 33 9 1 2 Voltage Test 33 9 2 Sensing Resistor Test 33 9 3 Analog Output Test 33 9 4 Earth Fault Performance Test 34 Appendix A SE 330AU Revision History 35 LIST OF FIGURES F...

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Page 5: ...resistor monitor that detects NER failures and earth faults in resistance earthed systems The SE 330AU measures NER resistance NER current and transformer or generator neutral to earth voltage The co...

Page 6: ...This parameter must be set using a PC running the SE MON330 software connected to the USB interface The setting range is 2 to 100 of CT primary rating in 1 increments For example if the MEM parameter...

Page 7: ...ge is greater than a threshold amount 500 for 20 k systems 2 500 for 100 k systems a resistor fault trip occurs Calibrate the SE 330AU on new installations if the NER is changed or if the sensing resi...

Page 8: ...afe operation using the SE MON330 software or network communications The default mode is non fail safe In non fail safe mode relays energize on fault Network enabled SE 330AU s can be remotely tripped...

Page 9: ...0 5 1 60 ER 5KV 20 kW 1 050 605 5 121 0 5 1 100 ER 5KV 20 kW 1 100 635 5 127 0 5 1 100 ER 5KV 20 kW 1 140 658 5 132 0 5 1 100 ER 5KV 20 kW 3 300 1 905 5 381 0 5 1 200 ER 5KV 20 kW 6 600 3 810 5 762 0...

Page 10: ...n ER 5WP in applications in which it might be exposed to moisture The ER 15KV ER 25KV and ER 35KV include moisture resistant terminal covers Use suitable water tight fittings Connect terminal G to ear...

Page 11: ...Page 7 SE 330AU Neutral Earthing Resistor Monitor Rev 4 I 101817 FIGURE 3 SE 330AU Connection Diagram...

Page 12: ...Page 8 SE 330AU Neutral Earthing Resistor Monitor Rev 4 I 101817 FIGURE 4 SE 330AU Outline and Panel Mounting Details...

Page 13: ...Page 9 SE 330AU Neutral Earthing Resistor Monitor Rev 4 I 101817 FIGURE 5 SE 330AU Outline and Surface Mounting Details...

Page 14: ...Page 10 SE 330AU Neutral Earthing Resistor Monitor Rev 4 I 101817 FIGURE 6 SE IP65CVR G Weatherproof Cover Outline...

Page 15: ...Page 11 SE 330AU Neutral Earthing Resistor Monitor Rev 4 I 101817 FIGURE 7 SE IP65CVR G Weatherproof Cover Installation...

Page 16: ...Page 12 SE 330AU Neutral Earthing Resistor Monitor Rev 4 I 101817 FIGURE 8 ER 600VC Sensing Resistor...

Page 17: ...Page 13 SE 330AU Neutral Earthing Resistor Monitor Rev 4 I 101817 FIGURE 9 SE MRE 600 Moisture Resistant Enclosure...

Page 18: ...Page 14 SE 330AU Neutral Earthing Resistor Monitor Rev 4 I 101817 FIGURE 10 ER 600VC Installed in SE MRE 600...

Page 19: ...Page 15 SE 330AU Neutral Earthing Resistor Monitor Rev 4 I 101817 FIGURE 11 ER 5KV Sensing Resistor...

Page 20: ...Page 16 SE 330AU Neutral Earthing Resistor Monitor Rev 4 I 101817 FIGURE 12 ER 5WP Sensing Resistor...

Page 21: ...Page 17 SE 330AU Neutral Earthing Resistor Monitor Rev 4 I 101817 FIGURE 13 ER 15KV Sensing Resistor...

Page 22: ...Page 18 SE 330AU Neutral Earthing Resistor Monitor Rev 4 I 101817 FIGURE 14 ER 25KV Sensing Resistor...

Page 23: ...Page 19 SE 330AU Neutral Earthing Resistor Monitor Rev 4 I 101817 FIGURE 15 ER 35KV Sensing Resistor...

Page 24: ...Page 20 SE 330AU Neutral Earthing Resistor Monitor Rev 4 I 101817 FIGURE 16 EFCT 1 Earth Fault Current Sensor...

Page 25: ...Page 21 SE 330AU Neutral Earthing Resistor Monitor Rev 4 I 101817 FIGURE 17 SE CS30 70 Earth Fault Current Sensor...

Page 26: ...Page 22 SE 330AU Neutral Earthing Resistor Monitor Rev 4 I 101817 FIGURE 18 EFCT 26 and SE CS30 26 Earth Fault Current Sensors...

Page 27: ...Page 23 SE 330AU Neutral Earthing Resistor Monitor Rev 4 I 101817 FIGURE 19 RK 332 Remote Indication and Reset FIGURE 20 PGA 0520 Analog Percent Current Meter...

Page 28: ...rom station earth and precautions must be taken with the power supply and the trip contacts See Technical Note RG 1 NGR Monitoring with Isolated Ground Beds at www littelfuse com relayscontrols A conf...

Page 29: ...the firmware upgrade process The red DIAGNOSTIC LED blinks rapidly while the firmware upgrade is running and the SE 330AU may reset multiple times during the upgrade process Do not remove the SD card...

Page 30: ...Littelfuse Startco Critical diagnostic code EF LED 2 No Change RF LED 2 ON K1 Trip SD Card DIAGNOSTIC LED flash code 1 L 5 S 1 L SD Card is full or a write error occurred Delete files or use a differ...

Page 31: ...stic code EF LED 2 No Change RF LED 2 No Change K1 No Change DIAGNOSTIC LED Solid Red SE 330AU processor failed to start Cycle supply If problem persists consult Littelfuse Startco K1 De energized Pre...

Page 32: ...1 2 3 4 5 A SE CS30 x 0 75 1 5 1 8 2 4 3 0 6 0 12 0 18 0 24 0 30 0 A Trip Time 0 10 0 12 0 14 0 16 0 18 0 20 0 25 0 30 0 35 0 40 0 50 s Trip Level Accuracy 0 20 of setting Trip Time Accuracy 0 20 of s...

Page 33: ...ognized Mounting Configurations Panel Mount and Optional Surface Mount Dimensions Height 213 mm 8 4 Width 99 mm 3 9 Depth 132 mm 5 2 Shipping Weight 2 0 kg 4 4 lb Environment Operating Temperature 40...

Page 34: ...600VC Maximum Voltage 600 Vac Maximum Current 30 mA Resistance 20 kW Thermal 420 Vac Continuous 600 Vac 6 minutes on 60 minutes off Shipping Weight 300 g 0 7 lb ER 5KV Maximum Voltage 2 500 Vac Maxim...

Page 35: ...ow Diameter 70 mm 2 7 Shipping Weight 1 2 kg 2 5 lb Certifications CSA UL CE Compliance RoHS IEC 60044 1 7 ORDERING INFORMATION NOTE Please refer to the SE 330 Product Change Notice PCN document for u...

Page 36: ...nd Ethernet IP protocols 3 Includes IEC 61850 and Modbus TCP protocols 4 Available at www littelfuse com relayscontrols 8 WARRANTY The SE 330AU Neutral Earthing Resistor Monitor is warranted to be fre...

Page 37: ...will damage the SE 330AU and the ER sensing resistor The VN TRIP LEVEL is the trip voltage at terminal N not terminal R Procedure Connect the ER sensing resistor connection to the SE 330AU and calibr...

Page 38: ...fy proper reaction of the circuit interrupting device in response to a simulated or controlled earth fault current To simulate earth fault current use CT primary current injection does not apply for b...

Page 39: ...ed in Section 2 8 SECTION 3 Updated installation instructions SECTION 4 SD Card note added SECTION 5 Troubleshooting information added SECTION 7 Ordering information updated REVISION 4 H 120716 APPEND...

Page 40: ...agnostic LED error removed SECTION 6 Earth Fault Circuit Trip Level updated USB Communications specifications added SECTION 7 Ordering information updated HARDWARE REVISION HISTORY HARDWARE REVISION 1...

Page 41: ...filter Added support for 12 to 60 s resistor fault trip time Improved log file descriptions IEC 61850 GOOSE network input support now always enabled Improved compatibility for Modbus TCP Web page disa...

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