Specifications

Earth Fault Protection Curves
M-PRO 30/40
(tolerance bands shown)
A.21
A
M-PACT
Time to trip in seconds (s)
Current I (x In)
Earth fault cropping C
trip Time = Time delay x C x I f/I
Adjustment = 1, 1.5, 2, 2.5, 3, 4, 5 & 6
Note: 1 = OFF
Indicated: C = 1.5 and 6
Earth fault pick up If
Adjustment = 0.1 to 1.0 x In
in 0.01 x In steps
Time delay has 11 settings
Inst. to 1 s in steps of 0.1 s
Indicated: Inst., 0.1 s and 1 s
Pickup If set at 0.1 x In
Time delay set at inst.
Pickup If set at 0.1 x In
Time delay set at 0.1 s
Pickup If set at 1 x In
Cropping set at 6
Time delay set at 1 s