ABB RET670 Product Manual page 81

Transformer protection RET670 2.0
Product version: 2.0
Table 70. Fuse failure supervision VDSPVC
Function
Operate value, block of main fuse
failure
Reset ratio
Operate time, block of main fuse
failure at 1 to 0 x U
r
Reset time, block of main fuse
failure at 0 to 1 x U
r
Operate value, alarm for pilot fuse
failure
Reset ratio
Operate time, alarm for pilot fuse
failure at 1 to 0 x U
r
Reset time, alarm for pilot fuse
failure at 0 to 1 x U
r
ABB
Range or value
(10.0-80.0)% of UBase
<110%
Min. = 5 ms
Max. = 15 ms
Min. = 15 ms
Max. = 30 ms
(10.0-80.0)% of UBase
<110%
Min. = 5 ms
Max. = 15 ms
Min. = 15 ms
Max. = 30 ms
Accuracy
±0.5% of Ur
–
–
±0.5% of Ur
–
–
–
1MRK 504 141-BEN C
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