VAMP 257 - Page 44

VAMP 257 Feeder and motor manager
Technical description
VAMP Ltd
2
VAMP 24h support phone : +358 (0)20 753 3264
VM257.EN002
2.4.4. Voltage interruptions............................................. 84
2.4.5. Voltage sags and swells ....................................... 86
2.4.6. Current transformer supervision........................... 88
2.4.7. Voltage transformer supervision.......................... 88
2.4.8. Circuit breaker condition monitoring................. 89
2.4.9. Energy pulses.......................................................... 91
2.5. Control functions............................................................ 94
2.5.1. Controllable objects.............................................. 94
2.5.2. Local/Remote selection....................................... 98
2.5.3. Logic functions....................................................... 98
2.6. Blocking and output relay functions........................... 98
2.6.1. Blocking matrix....................................................... 99
2.6.2. Output matrix ......................................................... 99
2.6.3. Virtual inputs and outputs .................................... 99
2.7. Disturbance recorder .................................................. 100
2.8. Self-supervision.............................................................. 102
2.9. Clock synchronisation ................................................. 102
2.10. Timers.............................................................................. 103
2.11. Non-volatile memory................................................... 104
3. Applications........................................................................105
3.1. Substation feeder protection..................................... 105
3.2. Industrial feeder protection........................................ 106
3.3. Parallel line protection ................................................ 106
3.4. Ring network protection ............................................. 108
3.5. Trip circuit supervision.................................................. 108
3.5.1. Internal parallel digital inputs............................. 108
3.5.2. Trip circuit supervision with one digital input... 109
3.5.3. Trip circuit supervision with two digital inputs.. 111
4. Connections .......................................................................112
4.1. Rear panel view ........................................................... 112
4.1.1. Feeder manager VAMP 257 .............................. 112
4.2. Analogue measurements........................................... 116
4.3. Digital inputs.................................................................. 116
4.4. Auxiliary voltage........................................................... 117
4.5. Output relays ................................................................ 117
4.6. Serial communication connection............................ 118
4.6.1. Pin assignments of communication options.... 120
4.6.2. Pin assignment of the front communication port
................................................................................ 122
4.6.3. Protocols................................................................ 122
4.7. Arc protection (option)............................................... 125
4.8. DI19/DI20 (option)........................................................ 126
4.9. External option modules ............................................. 126
4.9.1. External LED module VAM 16D.......................... 126
4.9.2. External input / output module ......................... 126
4.10. Block diagrams............................................................. 127
4.10.1. Feeder manager VAMP 257 .............................. 127