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
