ABB REF615 - Delayed Initiation Lines

t
HSAR
= Time delay of high-speed auto-reclosing, here: First reclose time
t
DAR
= Time delay of delayed auto-reclosing, 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 I
0
> 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. The CBB sequence is as follows:
A071274 V1 EN
Figure 112: 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. On the other hand, if the sequence is initiated
from the INIT_2 or INIT_3 lines, the sequence is two shots long.
Table 94: 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
10.4.3.4 Delayed initiation lines
The auto-reclose function consists of six individual auto-reclose initiation lines
INIT_1...INIT 6 and three delayed initiation lines:
1MRS756378 D Section 10
Control functions
REF615 221
Application Manual