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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
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
Содержание Relion REC615
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