Out Of Step System Functional Tests - ABB REL 356 Instruction Booklet

ABB REL 356 Current Differential Protection

Out Of Step System Functional Tests

For systems equipped with OST logic the following settings may be used to check the OST logic in REL 356:
PANG = 65 T2G
GANG = 65 Z3P
ZR = 3.0 T3P
BKUP = OUT Z3GF
LOPB = NO Z3GR = 0.01
FDOP = IN T3G
FDOG = IN OST
DIRU = ZSEQ OSB
IOM = 0.5 RT
TOG = BLK RU
Z2P = 8.5 OST1 = 2
T2P = 0.1 OST2 = 3
Z2GF = 6.5 OST3 = 3
Z2GR = 0.01 OSOT = 100
NOTE: These tests are optional and require programing Computer Aided, Multi-amp or Doble test equipment.
In the R-X diagram, the positions shown correspond to the following quantities:
5-24
= 0.1
= 11.0
= .2
= 11.0
= .2
= WAYO
= BOTH
= 2.0
= 4.0
5
4
3
2
1
Testing