ABB Relion 670 Series Product Manual page 39

ABB
Phasor measurement unit RES670
Pre-configured
Product version: 1.2
Voltage protection
Table 26. Two step undervoltage protection UV2PTUV
Function
Operate voltage, low and high step
Absolute hysteresis
Internal blocking level, low and high
step
Inverse time characteristics for low
and high step, see table 68
Definite time delays
Minimum operate time, inverse
characteristics
Operate time, start function
Reset time, start function
Critical impulse time
Impulse margin time
Table 27. Two step overvoltage protection OV2PTOV
Function
Operate voltage, low and high step
Absolute hysteresis
Inverse time characteristics for low
and high step, see table 67
Definite time delays
Minimum operate time, Inverse
characteristics
Operate time, start function
Reset time, start function
Critical impulse time
Impulse margin time
Range or value
UBase
(1–100)% of
UBase
(0–100)% of
UBase
(1–100)% of
-
(0.000-60.000) s
(0.000–60.000) s
25 ms typically at 2 to 0 x U
set
ms typically at 0 to 2 x U
set
10 ms typically at 1.2 to 0.8 x U
15 ms typically
Range or value
(1-200)% of UBase
UBase
(0–100)% of
-
(0.000-60.000) s
(0.000-60.000) s
25 ms typically at 0 to 2 x U
set
ms typically at 2 to 0 x U
set
10 ms typically at 0 to 2 x U
set
15 ms typically
1MRK 511 266-BEN -
Accuracy
± 0.5% of U
r
± 0.5% of U
r
± 0.5% of U
r
See table 68
± 0.5% ± ms
± 0.5% ± ms
-
-
-
set
-
Accuracy
± 0.5% of U at U < U
r
± 0.5% of U at U > U
± 0.5% of U at U < U
r
± 0.5% of U at U > U
See table 67
± 0.5% ± ms
± 0.5% ± ms
-
-
-
-
r
r
r
r
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