ABB REQ650 Product Manual page 37

Breaker protection REQ650 2.1 IEC
Product version: 2.1
Table 29. Two step residual overvoltage protection ROV2PTOV
Function
Operate voltage, step 1 - step 2
Definite time delay low step (step 1) at 0 to 1.2 x U
Definite time delay high step (step 2) at 0 to 1.2 x U
Operate time, start at 0 to 1.2 x U
Reset time, start at 1.2 to 0 x U
Critical impulse time
Impulse margin time
Table 30. 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
ABB
set
set
set
set
SEMOD175210-2 v6
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
Range or value
(1.0-200.0)% of UBase
(0.000–60.000) s
(0.000–60.000) s
Min. = 50 ms
Max. = 60 ms
Min. = 10 ms
Max. = 30 ms
45 ms typically at 0 to 1.2 x U
set
10 ms typically
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 505 358-BEN B
Accuracy
± 0.5% of U at U ≤ U
r r
± 0.5% of U at U > U
r
Maximum up to 130v secondary at
16.7Hz
± 0.2% or ± 65 ms whichever is
greater
± 0.2% or ± 65 ms whichever is
greater
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