ABB Relion 670 Series Product Manual page 47

Busbar protection REB670
Customized
Product version: 1.2
Table 34. Two step residual overvoltage protection ROV2PTOV
Function
Operate voltage, step 1 and step 2
Absolute hysteresis
Inverse time characteristics for low and high step, see table
Definite time setting, step 1
Definite time setting
Minimum operate time
Operate time, start function
Reset time, start function
Critical impulse time
Impulse margin time
Table 35. Voltage differential protection VDCPTOV
Function
Voltage difference for alarm and
trip
Under voltage level
Timers
Table 36. Loss of voltage check LOVPTUV
Function
Operate voltage
Pulse timer
Timers
ABB
84
Range or value
UBase
(0.0–100.0) % of
UBase
(0.0–100.0) % of
(0.000–60.000)s
Range or value
(0–100)% of UBase
(0.050–60.000) s
(0.000–60.000) s
Range or value
(1-200)% of UBase
(0–100)% of UBase
-
(0.00–6000.00) s
(0.000–60.000) s
(0.000-60.000) s
25 ms typically at 0 to 2 x U
set
25 ms typically at 2 to 0 x U
set
10 ms typically at 0 to 2 x U
set
15 ms typically
Accuracy
± 0.5 % of U
r
± 0.5% of U
r
± 0.5% ± 10 ms
Accuracy
± 0.5% of U
r
± 0.5% ± 10 ms
± 0.5% ± 10 ms
1MRK505273-BEN D
Accuracy
± 0.5% of U at U < U
r r
± 1.0% of U at U > U
r
± 0.5% of U at U < U
r r
± 1.0% of U at U > U
r
See table 84
± 0.5% ± 10 ms
± 0.5% ± 10 ms
± 0.5% ± 10 ms
-
-
-
-
47