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VAMP Ltd
Motor protection relay
Technical Description
VAMP 150
VM150.EN005
Vamp 24h support phone : +358 (0)20 753 3264
43
Overcurrent stages I>> and I>>> (50/51)
Current setting range:
0.10 – 20.00 xI
MOT
(step 0.01)
Definite time characteristic:
- operating time
0.05* - 300.00 s (step 0.01)
Starting time
<30 ms
Resetting time
<60 ms
Resetting ratio
0.97
Accuracy:
- starting
±2% of set value
- operate time
±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.
Stall protection stage (48)
Setting range:
- Ist>
- I
MOT
St
1.30 – 10.00 xI
MOT
(step 0.01)
1.50 – 10.00 xI
MOT
(step 0.01)
Definite time characteristic:
- operating time
1.0 - 300.0 s (step 0.1)
Inverse time characteristic:
- 1 characteristic curve
- Time multiplier tDT>
Inv
1.0 – 200.0 s (step 0.1)
Starting time
<300 ms
Resetting time
<300 ms
Resetting ratio
0.90
Accuracy:
- operating time
±5% or at ±80 ms
Thermal overload stage T> (49)
Setting range:
0.5 – 1.20 xI
MOT
(step 0.01)
Alarm setting range:
60 – 99 % (step 1%)
Time constant Tau:
2 – 60 min (step 1)
Cooling time constant Tau2:
1.0 – 5.0 xTau (step 0.1)
Max. overload at +40
°
C
70 – 120 %I
MOT
(step 1)
Max. overload at +70
°
C
50 – 100 %I
MOT
(step 1)
Ambient temperature
-55 – 125
°
C (step 1
°)
Starting time
<300 ms
Resetting time
<300 ms
Resetting ratio
0.95
Accuracy:
- operating time
±5% or at ±1 s
Unbalance stage I2> (46)
Setting range:
10 – 70% (step 1%)
Definite time characteristic:
- operating time
1.0 – 600.0s s (step 0.1)
Inverse time characteristic:
- 1 characteristic curve
- time multiplier
Inv
1 – 50 s (step 1)
Starting time
<40 ms
Resetting time
<60 ms
Resetting ratio
0.97
Accuracy:
- starting
±3% of set value or
±5% or ±100 ms of rated value
- operate time
±1% or ±100 ms