VAMP 210
Generator protection relay
Technical description
VAMP Ltd
52
Vamp 24h support phone: +358 (0)20 753 3264
VM210.EN004
Reset ratio
0.97
Inaccuracy:
- Starting
±2% of set value or ±0.3% of rated value
- Operating time at definite time function
±1% or ±30 ms
*) This is the instantaneous time i.e. the minimum total operational time including the fault
detection time and operation time of the trip contacts.
Earth fault stages I
02
>, I
02
>> (50N/51N)
Setting range:
0.005 – 2.000 pu, for I
02
>
0.01 – 2.00 pu, for I
02
>>
Definite time function:
- Operating time
0.08 – 300.00 s (step 0.02 s)*
Start time
<60 ms
Reset time
<60 ms
Reset ratio
0.97
Inaccuracy:
- Starting
±2% of set value or ±0.3% of rated value
- Operating time at definite time function
±1% or ±30 ms
*) This is the instantaneous time i.e. the minimum total operational time including the fault
detection time and operation time of the trip contacts.
Directional earth fault stage I
0
ϕ
(67N)
Residual current setting range
0.01 – 1.00 pu
Residual voltage setting range
1 – 20%
Operating principle
I
0
cos
ϕ
/ I
0
sin
ϕ
Definite time function:
- Operating time
0.10 – 300.00 s (step 0.02 s)*
Start time
<60 ms
Reset time
<60 ms
Reset ratio
0.95
Inaccuracy:
- Starting
±3% of set value or ±0.5% of rated value
- Operating time at definite time function
±1% or ±30 ms
*) This is the instantaneous time i.e. the minimum total operational time including the fault
detection time and operation time of the trip contacts.
Residual voltage stages U
0
> and U
0
>> (59N)
Residual voltage setting range
1 - 60 %
Definite time function:
- Operating time
0.3 – 300.0 s (step 0.1 s)
Start time
<300 ms
Reset time
<300 ms
Reset ratio
0.97
Inaccuracy:
- Starting
±2% of set value or ±0.3% of rated value
- Operating time
±1% or ±150 ms
5.3.3.
Voltage protection stages
Overvoltage stages U> and U>> (59)
Setting range
50 – 150% x Ugn
Definite time function:
- Operating time
0.08 – 300.00 s (step 0.02 s)*
Start time
<60 ms
Reset time
<60 ms
Reset ratio
0.97