Residual Current Protection - VAMP 140 Operation And Configuration Instructions

VAMP Ltd
5.3.2.
VM140.EN011
Overcurrent and earth-fault relay
Technical description
Overcurrent stages I>> and I>>> (50/51)
Current setting range
Definite time characteristic:
- Operating time
Starting time
Resetting time
Resetting ratio
Inaccuracy:
- Starting
- Operate time
Phase unbalance stage I2> (46)
Current setting range
Definite time characteristic:
- Operating time
Starting time
Resetting time
Resetting ratio
Inaccuracy:
- Starting
- Operate time
Thermal overload stage T> (46)
Settings:
- Max. continuous load current k x In
( trip = thermal trip level)
- Thermal alarm level
- Heating time constant
- Cooling time constant

Residual current protection

Residual current stage I
Residual current setting range
Definite time characteristic:
- Operating time
Starting time
Resetting time
Resetting ratio
Inaccuracy:
- Starting
- Operate time
Residual current stage I
Current setting range:
Definite time characteristic:
- Operating time
Inverse time characteristic:
- 4 characteristic curve sets: (IEC60255-
3)
- Time multiplier k
Starting time
Resetting time
Resetting ratio
Vamp 24h support phone +358 (0)40 573 6316
0.10 – 40.00 pu
0.05 - 300.00 s (step 0.01)
<50 ms
<80 ms
0.97
±2% of set value
±1% or ±30 ms
5 – 70% I2/I1
1.0 – 600.0s s (step 0.1)
<300 ms
<300 ms
0.95
±3% of set value or
±0.5% of rated value
±5% or ±300 ms
0.50 - 1.20 x In
60 – 99%
2 – 60 min
1.0 x tau
> (50/51N)
0
0.005 - 2.000 pu
0.08 - 300.0 s (step 0.02 s)
<60 ms
<80 ms
0.97
±2% of set value or
±0.3% of rated value
±1% or ±30 ms
>> (50/51N)
0
0.02 – 2.00 pu
0.05 - 300.00 s (step 0.01)
EI, VI, NI, LTI *)
0.05 – 3.20
<60 ms
<80 ms
0.97
VAMP 140
47