ABB REF615 Applications Manual page 226

Feeder protection and control
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Section 10
Control functions
220
Table 93:
Settings for configuration example 1
Setting name
Shot number CBB1
Init signals CBB1
First reclose time
Shot number CBB2
Init signals CBB2
Second reclose time
Example 2
There are two separate sequences implemented with three shots. Shot 1 is
implemented by CBB1 and it is initiated with the high stage of the overcurrent
protection (I>>). Shot 1 is set as a high-speed auto-reclosing with a short time delay.
Shot 2 is implemented with CBB2 and meant to be the first shot of the auto-reclose
sequence initiated by the low stage of the overcurrent protection (I>) and the low
stage of the non-directional earth-fault protection (I
in both situations. It is set as a high-speed auto-reclosing for corresponding faults.
The third shot, which is the second shot in the auto-reclose sequence initiated by I>
or I
>, is set as a delayed auto-reclosing and executed after an unsuccessful high-
o
speed auto-reclosing of a corresponding sequence.
A071272 V1 EN
Figure 111:
Auto-reclose sequence with two shots with different shot settings
according to initiation signal
Setting value
1
7 (lines 1,2 and 3 = 1+2+4 = 7)
0.3s (an example)
2
7 (lines 1,2 and 3 = 1+2+4 = 7)
15.0s (an example)
>). It has the same reclose time
o
1MRS756378 D
REF615
Application Manual

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