ABB Relion 670 Series Product Manual page 79

Busbar protection REB670
Version 2.2
Table 55. Loss of voltage check LOVPTUV
Function
Operate voltage
Pulse timer when disconnecting all three
phases
Time delay for enabling the functions after
restoration
Operate time delay when disconnecting all
three phases
Time delay to block when all three phase
voltages are not low
Hitachi Power Grids
SEMOD175210-2 v7
Range or value
(1–100)% of UBase
(0.050–60.000) s
(0.000–60.000) s
(0.000–60.000) s
(0.000–60.000) s
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Accuracy
±0.5% of U
r
±0.2% or ±15 ms whichever is greater
±0.2% or ±35 ms whichever is greater
±0.2% or ±35 ms whichever is greater
±0.2% or ±35 ms whichever is greater
1MRK 505 373-BEN P
79