ABB SPAC 531 C User Manual And Technical Description page 28

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I
I>/In
SS1
CBOS
TS1
SIGNAL 1
I
I>/In
SS1
CBOS
TS1
Fig. 13. Setting of auto-reclose starting times
I Current
I>/I Starting current level
n
SS1 Starting signal of phase overcurrent module
TS1 Tripping signal of phase overcurrent module
OPEN CB opening signal at AR
SIGNAL1 Contact X1/6-7
t Starting time of phase overcurrent module
s1
t> Operate time of phase overcurrent module
t Starting time of auto-reclose unit
s2
S24 Operate time of auto-reclose unit
t CB operate time
cb
t Retardation time
rd
t Delay of contact X1/6-7
r
t s1
t s2
S 24
t >
a)
t s1
t s2
S 24
t >
b)
t
t r
t
t
t cb
t rd
t