GE M-PACT - Page 26

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M-PRO 30/40 EARTH LEAKAGE Protection (REF)
0.01
0.1
1
10
100
1000
0.01 0.1 1 10 100 1000
CURRENT IN MULTIPLES OF In
TIME TO TRIP IN SECOND
S
Pickup, If adjustable from
0.1 to 1xIn
(0.1 steps show n)
M-PRO 30/40 EARTH LEAKAGE Protection (UEF & SEF)
0.01
0.1
1
10
100
1000
0.01 0.1 1 10 100 1000
CURRENT , I (x In )
TIME TO TRIP, T (s)
Pickup, If adjustable
from 0.1 to 1 x In
(0.1 steps show n)
Earth Fault Cropping, Cr
adjustable from 1.5 to 6
T = Tf x Cr x (If / I)
6
1.5
2.5
3
4
5
2
6
1.5
2.5
3
4
5
2
1s
Inst
Trip delay, Tf
adjustable from
instantaneous to 1s