Secondary system supervision
Table 45. Fuse failure supervision SDDRFUF
Function
Range or value
Accuracy
Operate voltage, zero sequence
(1-100)% of UBase
± 1.0% of U
r
Operate current, zero sequence
(1–100)% of IBase
± 1.0% of I
r
Operate voltage, negative sequence
(1–100)% of UBase
± 0.5% of U
r
Operate current, negative sequence
(1–100)% of IBase
± 1.0% of I
r
Operate voltage change level
(1–100)% of UBase
± 5.0% of U
r
Operate current change level
(1–100)% of IBase
± 5.0% of I
r
Operate phase voltage
(1-100)% of UBase
± 0.5% of U
r
Operate phase current
(1-100)% of IBase
± 1.0% of I
r
Operate phase dead line voltage
(1-100)% of UBase
± 0.5% of U
r
Operate phase dead line current
(1-100)% of IBase
± 1.0% of I
r
Table 46. Breaker close/trip circuit monitoring TCSSCBR
Function
Range or value
Accuracy
Operate time delay
(0.020 - 300.000) s
± 0,5% ± 110 ms
Transformer protection RET650
1MRK 504 137-BEN B
Product version: 1.3
ABB
49
Содержание ret650
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