ABB Relion 670 Series Product Manual page 46

Busbar protection REB670
Customized
Product version: 1.2
Voltage protection
Table 32. Two step undervoltage protection UV2PTUV
Function
Operate voltage, low and high step
Absolute hysteresis
Internal blocking level, step 1 and step 2
Inverse time characteristics for step 1 and step 2, see table
Definite time delay, step 1
Definite time delays
Minimum operate time, inverse characteristics
Operate time, start function
Reset time, start function
Critical impulse time
Impulse margin time
Table 33. Two step overvoltage protection OV2PTOV
Function
Operate voltage, step 1 and 2
Absolute hysteresis
Inverse time characteristics for steps 1 and 2, see table
Definite time delay, step 1
Definite time delays
Minimum operate time, Inverse characteristics
Operate time, start function
Reset time, start function
Critical impulse time
Impulse margin time
46
Range or value
UBase
(1–100)% of
UBase
(0–100)% of
UBase
(1–100)% of
83 -
(0.00 - 6000.00) s
(0.000-60.000) s
(0.000–60.000) s
25 ms typically at 2 x U
25 ms typically at 0 to 2 x U
10 ms typically at 2 x U
15 ms typically
Range or value
UBase
(1-200)% of
UBase
(0–100)% of
82 -
(0.00 - 6000.00) s
(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
1MRK505273-BEN D
Accuracy
± 0.5% of U
± 0.5% of U
± 0.5% of U
See table
± 0.5% ± 10 ms
± 0.5% ±10 ms
± 0.5% ± 10 ms
to 0 -
set
-
set
to 0 -
set
-
Accuracy
± 0.5% of U
± 0.5% of U at U > U
± 0.5% of U
± 0.5% of U at U > U
See table
± 0.5% ± 10 ms
± 0.5% ± 10 ms
± 0.5% ± 10 ms
-
set
-
set
-
set
-
r
r
r
83
at U < U
r r
r
at U < U
r r
r
82
ABB