ABB RER615 - Page 678

Figure 342: Autoreclosing sequence with two shots
t
HSAR
Time delay of high-speed autoreclosing, here: First reclose time
t
DAR
Time delay of delayed autoreclosing, here: Second reclose time
t
Protection
Operating time for the 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 sequence needs two CBBs. The reclosing times for shot
1 and shot 2 are different, but each protection function initiates the same
sequence. The CBB sequence is described in Table 683 as follows:
Shot 1
(CBB1)
0.3s
Shot 2
(CBB2)
15.0s
INIT_1 (I>>)
INIT_2 (I>)
INIT_3 (Io>)
Lockout
Lockout
Lockout
Figure 343: Two shots with three initiation lines
Table 683: Settings for configuration example 1
Setting name Setting value
Shot number CBB1 1
Init signals CBB1 7 (lines 1, 2 and 3 = 1+2+4 = 7)
First reclose time 0.3s (an example)
Shot number CBB2 2
Init signals CBB2 7 (lines 1, 2 and 3 = 1+2+4 = 7)
Second reclose time 15.0s (an example)
Control functions 1MRS758755 C
678 REC615 & RER615
Technical Manual