ABB REF542plus - 10 Type Test; Protection Function

REF 542plus switchbay protection and control unit
Manual Part 3: Installation and Commissioning
1VTA100004-en DMS,2001-10-04 REF542plus: Installation and Commissioning 62 / 80
10 Type Test
10.1 Protection Function
All relevant tests according to the standard IEC 60255.
ANSI Code Protection Function and the Setting Parameters Test Procedure
68 Inrush stabilization (Only in connection with I>> and I>)
N = 2.0 … 8.0
M = 3.0 … 4.0
Time = 220 … 100.000 ms
IEC 60255-3
67 Overcurrent directional high
I>> = 0,05 ... 40 In
t = 70 ... 300.000 ms
IEC 60255-12
67 Overcurrent directional low
I > = 0,05 ... 40 In
t = 220 ... 300.000 ms
IEC 60255-12
50 Overcurrent instantaneous
I>>> = 0,10 ... 40 In
t = 15 ... 300.000 ms
IEC 60255-3
51 Overcurrent high
I>> = 0,05 ... 40 In
t = 40 ... 300.000 ms
IEC 60255-3
51 Overcurrent low
I > = 0,05 ... 40 In
t = 40 ... 300.000 ms
IEC 60255-3
51 IDMT
Normal-, Very-, Extremely- or Longtime- inverse time
characteristic
Ie = 0,05 ... 40 In
K = 0,05 ... 1,5
IEC 60255-3
51N Earth fault high
IE>> = 0,05 ... 40 In
t = 70 ... 100.000 ms
IEC 60255-3
51N Earth fault low
IE> = 0,05 ... 40 In
t = 70 ... 100.000 ms
IEC 60255-3
67N Earth fault directional high
IE>> = 0,05 ... 40 In
t = 40 ... 100.000 ms
forward- / backward direction
isolated (sin ϕ) and earthed (cos ϕ)
IEC 60255-12
67N Earth fault directional low
IE> = 0,05 ... 40 In
t = 40 ... 300.000 ms
forward- / backward direction
isolated (sin ϕ) and earthed (cos ϕ)
IEC 60255-12