
28
Fig. 13. Setting of auto-reclose starting times
I
Current
I>/I
n
Starting current level
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
s1
Starting time of phase overcurrent module
t>
Operate time of phase overcurrent module
t
s2
Starting time of auto-reclose unit
S24
Operate time of auto-reclose unit
t
cb
CB operate time
t
rd
Retardation time
t
r
Delay of contact X1/6-7
t
t >
S 24
SS1
TS1
CBOS
I>/In
t
I
t cb
t rd
t s1
t s2
t
t
S 24
I
t >
t s1
t s2
SIGNAL 1
t r
SS1
TS1
CBOS
I>/In
a)
b)