GEK-113308
MIWII Directional Power Protection System
9-15
9 RELAY COMMISSIONING
9.12 POWER UNITS (32)
9
According to these values the theoretical trip value is:
0.05 x NOMINAL S x POWER FACT x 1/CT X 1/VT = 45 W
•
Apply 50 W and check that the relay does not trip (0V or 0A).
•
Decrease the power until producing a trip, and check that the operation range does not exceed in ±6% the theoretical
value.
•
Apply 20 W and check that the operating time does not exceed from 60 ms
9.12.3 FUNCTION 32_3
For this unit, the relay must trip due to a negative active power
According to these values the theoretical trip value is:
0.05 x NOMINAL S x POWER FACT x 1/CT X 1/VT = -45 W
•
Apply -35 W and check that the relay does not trip (0V or 0A).
•
Decrease the power until producing a trip, and check that the operation range does not exceed in ±6% the theoretical
value.
•
Apply -100 W and check that the operating time does not exceed from 60 ms
NAME
VALUE
32_2 Enable
Yes
32_2 Trip
Yes
32_2 Power Type
ACTIVE
32_2 Minimum/Maximum
MAXIMUM
32_2 Forward/Reverse
REVERSE
32_2 Alarm Level
.05 pu
32_2 Alarm Delay
10 s
32_2 Trip Level
.05 pu
32_2 Trip Delay
0 s
Block 32_2 From Online
1 s