VAMP 135 - Feeder Over-, Under- and Residual Voltage Protection

VAMP 135 Over-, under-, residual voltage and
frequency relay
Technical description
VAMP Ltd
22
VAMP 24h support phone : +358 (0)20 753 3264 VM135.EN008
3.3. Feeder over-, under- and residual
voltage protection
VAMP135Appl3
2
1
U
mA
X2
5
4
BI
Measurement
functions
U ,U ,U
L1 L2 L3
U ,U ,U
12 23 31
U ,U ,U
0 1 2
-
+
2
4
6
19
12
1
3
5
20
11
17
16
14
13
9
12
8
11
7
10
X1
X1
X2
VAMP 135
T1
T2
A1
A2
A3
IF
Protectionfunction
~
U
12
U
23
U
0
f>,
f>>
f<,
f<<
Uo> Uo>>
U>>>
U<<<
U>
U>>
U< U<<
Figure 3.3-1. Three-phase overvoltage, undervoltage and residual voltage
protection of a feeder. The voltage measurement mode is set to “ 2Line+U
0
”