ABB Relion 670 Series Product Manual page 51

Busbar protection REB670
Customized
Product version: 1.2
Secondary system supervision
Table 41. Fuse failure supervision SDDRFUF
Function
Operate voltage, zero sequence
Operate current, zero sequence
Operate voltage, negative sequence
Operate current, negative sequence
Operate voltage change level
Operate current change level
Operate phase voltage
Operate phase current
Operate phase dead line voltage
Operate phase dead line current
Operate time, general start of function
Reset time, general start of function
ABB
Range or value
(1-100)% of UBase
(1–100)% of IBase
(1–100)% of UBase
(1–100)% of IBase
(1–100)% of UBase
(1–100)% of IBase
(1-100)% of UBase
(1-100)% of IBase
(1-100)% of UBase
(1-100)% of IBase
25 ms typically at 1 to 0 of Ubase
35 ms typically at 0 to 1 of Ubase
Accuracy
± 1.0% of U
r
± 1.0% of I
r
± 0.5% of U
r
± 1.0% of I
r
± 5.0% of U
r
± 5.0% of I
r
± 0.5% of U
r
± 1.0% of I
r
± 0.5% of U
r
± 1.0% of I
r
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