VAMP 135 - Section 2

VAMP Ltd
Over-, under-, residual voltage and
frequency relay
Technical description
VAMP 135
VM135.EN008 VAMP 24h support phone : +358 (0)20 753 3264
1
Table of Content
1. Introduction ............................................................................3
1.1. Application ..........................................................................3
1.2. Main features.......................................................................4
2. Functions .................................................................................5
2.1. Principles of the numerical protection technique.........5
2.2. Relay protection configurations .......................................7
2.2.1. Protection configuration Phase...............................7
2.2.2. Protection configuration Line ..................................7
2.2.3. Protection configuration Line+U
0
............................8
2.3. Relay protection functions ................................................8
2.3.1. Overvoltage protection U>, U>>, U>>> (59)..........8
2.3.2. Undervoltage protection U<, U<<, U<<< (27)......10
2.3.3. Residual voltage protection U
0
>, U
0
>> (59N) ......12
2.3.4. Overfrequency and underfrequency protection
(81H/81L)...............................................................................13
2.3.5. Underfrequency protection f<, f<< (81L) .............14
2.3.6. Circuit-breaker failure protection CBFP (50BF) ...15
2.4. Measurement functions of the relay..............................16
2.5. Output relay and blocking functions.............................16
2.5.1. Output relay matrix .................................................17
2.5.2. Blocking matrix .........................................................17
2.6. Communication ................................................................17
2.6.1. PC port ......................................................................17
2.6.2. Remote control connection ..................................17
2.7. Disturbance recorder .......................................................18
2.8. Self-supervision...................................................................19
3. Application examples .........................................................20
3.1. Feeder over-, under- and residual voltage protection
(3Phase mode) .................................................................20
3.2. Feeder over- and undervoltage protection (3Line
mode) ................................................................................21
3.3. Feeder over-, under- and residual voltage protection
.............................................................................................22
3.4. Trip circuit supervision .......................................................24
4. Connections .........................................................................26
4.1. Digital input ........................................................................26
4.2. Auxiliary voltage................................................................26
4.3. Output relays .....................................................................27
4.4. Serial communication connections ...............................27
4.5. Voltage transducer...........................................................27
4.6. Block diagram ...................................................................28
4.7. Connection diagram .......................................................29
5. Technical data .....................................................................30
5.1. Connections ......................................................................30
5.1.1. Measuring circuitry ..................................................30