VAMP Ltd Generator protection relay
Technical description
VAMP 210
VM210.EN004 Vamp 24h support phone: +358 (0)20 753 3264
1
Table of Content
1. Introduction ............................................................................3
1.1. Application ..........................................................................3
1.2. Main features.......................................................................3
2. Functions.................................................................................5
2.1. Principles of the numerical protection technique.........5
2.2. Protection relay functions..................................................7
2.2.1. Overcurrent protection (50/51)..............................7
2.2.2. Voltage restrained and voltage controlled
overcurrent function (51V)................................... 14
2.2.3. Unbalance protection (46) .................................. 16
2.2.4. Directional earth-fault protection (67N)............. 18
2.2.5. Earth fault protection (50N/51N)......................... 19
2.2.6. Residual voltage protection (59N)...................... 21
2.2.7. Overvoltage protection (59)................................ 22
2.2.8. Undervoltage protection (27/60)........................ 23
2.2.9. Overload protection (49) ..................................... 24
2.2.10. Underexcitation protection (40).......................... 25
2.2.11. Reverse power protection (32R).......................... 27
2.2.12. Overfrequency protection (81H)......................... 28
2.2.13. Underfrequency protection (81L)........................ 29
2.2.14. Circuit-breaker failure protection (50BF)............ 30
2.2.15. Arc fault protection (option) ArcI> (51 L>), ArcI
0
>
(51N L>), ArcI
02
> (51N L>)...................................... 31
2.3. Measurement functions of the relay............................. 32
2.4. Output relay and blocking functions............................ 33
2.4.1. Output relay matrix................................................ 34
2.4.2. Blocking matrix....................................................... 34
2.5. Communication............................................................... 34
2.5.1. PC port..................................................................... 34
2.5.2. Remote control connection ................................ 34
2.6. Disturbance recorder...................................................... 35
2.7. Self-supervision.................................................................. 36
3. Applications..........................................................................37
3.1. Directly connected generator....................................... 38
3.2. Directly connected generator with unearthed
generator neutral ............................................................ 39
3.3. Generator-transformer unit............................................. 40
3.4. Trip circuit supervision...................................................... 41
4. Connections .........................................................................43
4.1. Digital inputs...................................................................... 43
4.2. Auxiliary voltage............................................................... 44
4.3. Output relays .................................................................... 44
4.4. Serial communication connection ............................... 44
4.5. Arc Protection................................................................... 44
4.6. Block diagram .................................................................. 45