Operation Guide P341/EN O/B11
Commissioning and CHAPTER 3
Maintenance Page 1/80
MiCOM P341
CONTENT
1. INTRODUCTION 5
2. SETTING FAMILIARISATION 5
3. EQUIPMENT REQUIRED FOR COMMISSIONING 6
3.1 Minimum equipment required 6
3.2 Optional equipment 6
4. PRODUCT CHECKS 6
4.1 With the relay de-energised 7
4.1.1 Visual inspection 8
4.1.2 Current transformer shorting contacts 8
4.1.3 Insulation 9
4.1.4 External wiring 10
4.1.5 Watchdog contacts 10
4.1.6 Auxiliary supply 10
4.2 With the relay energised 11
4.2.1 Watchdog contacts 11
4.2.2 Date and time 11
4.2.2.1 With an IRIG-B signal 11
4.2.2.2 Without an IRIG-B signal 12
4.2.3 Light Emitting Diodes (LEDs) 12
4.2.3.1 Testing the alarm and out of service LEDs 12
4.2.3.2 Testing the trip LED 12
4.2.3.3 Testing the user-programmable LEDs 12
4.2.4 Field voltage supply 12
4.2.5 Input opto-isolators 13
4.2.6 Output relays 14
4.2.7 Rear communications port 14
4.2.7.1 Courier communications 15
4.2.7.2 Modbus communications 15
4.2.7.3 IEC 60870-5-103 (VDEW) communications 15
4.2.8 Current inputs 16
4.2.9 Voltage inputs 17
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