ABB RELION Series, Technical Manual

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t
HSAR
Time delay of high-speed autoreclosing, here: First reclose time
t
DAR
Time delay of delayed autoreclosing, here:
Second reclose time
t
l>>
Operating time for the I>> protection stage to clear the fault
t
l>
or
lo>
Operating time for the I> or Io> protection stage to clear the fault
t
CB_O
Operating time for opening the circuit breaker
t
CB_C
Operating time for closing the circuit breaker
In this case, the number of needed CBBs is three, that is, the first shot's reclosing time
depends on the initiation signal.
INIT_1 (I>>)
INIT_2 (I>)
INIT_3 (Io>)
Shot 1
(CBB1)
1.0s
Shot 1
(CBB2)
0.2s
Shot 2
(CBB3)
10.0s
Lockout
Lockout
Lockout
A071274 V2 EN
Figure 346: Three shots with three initiation lines
If the sequence is initiated from the
INIT_1
line, that is, the overcurrent protection
high stage, the sequence is one shot long. If the sequence is initiated from the
INIT_2
or
INIT_3
lines, the sequence is two shots long.
Table 665: Settings for configuration example 2
Setting name Setting value
Shot number CBB1 1
Init signals CBB1
1 (line 1)
First reclose time
0.0s (an example)
Shot number CBB2 1
Init signals CBB2
6 (lines 2 and 3 = 2+4 = 6)
Second reclose time
0.2s (an example)
Shot number CBB3 2
Init signals CBB3
6 (lines 2 and 3 = 2+4 = 6)
Third reclose time
10.0s
9.4.6.4 Delayed initiation lines
The auto-reclose function consists of six individual auto-reclose initiation lines
INIT_1...INIT 6
and three delayed initiation lines:
1MRS758755 A
Section 9
Control functions
REC615 and RER615 657
Technical Manual