ABB REC670 Product Manual page 53

ABB
Bay control REC670
Pre-configured
Product version: 1.1
Table 40. Two step residual overvoltage protection ROV2PTOV
Function
Operate voltage, low and
high step
Absolute hysteresis
Inverse time characteristics
for low and high step, see
table 93
Definite time setting
Minimum operate time
Operate time, start function
Reset time, start function
Critical impulse time
Impulse margin time
Table 41. Voltage differential protection (PTOV)
Function
Voltage difference for
alarm and trip
Under voltage level
Timers
Range or value
(1-200)% of Ubase
(0–100)% of Ubase
-
(0.000–60.000) s
(0.000-60.000) s
25 ms typically at 0 to 2 x U
25 ms typically at 2 to 0 x U
10 ms typically at 0 to 2 x U
15 ms typically
Range or value
(0.0–100.0) % of U
base
(0.0–100.0) % of U
base
(0.000–60.000)s
1MRK 511 192-BEN B
Issued: June 2010
Accuracy
± 1.0% of U at U < U
r
± 1.0% of U at U > U
± 1.0% of U at U < U
r
± 1.0% of U at U > U
See table 93
± 0.5% ± 10 ms
± 0.5% ± 10 ms
-
set
-
set
-
set
-
Accuracy
± 0.5 % of U
r
± 0.5% of U
r
± 0.5% ± 10 ms
r
r
r
r
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