ABB REL670 - Page 98

Table 90. Carrier receive logic LCCRPTRC
Function Range or value Accuracy
Operation mode 1 Out Of 2
2 Out Of 2
-
Independent time delay (0.000-60.000) s ±0.2% or ±35 ms whichever is
greater
Table 91. Negative sequence overvoltage protection LCNSPTOV
Function Range or value Accuracy
Operate value, negative sequence
overvoltage
(1-200)% of UBase ±0.5% of U
r
at U≤U
r
±0.5% of U at U>U
r
Reset ratio, negative sequence
overvoltage
>95% at (10–200)% of UBase -
Operate time, start at 0 to 2 x U
set
Min. = 15 ms
Max. = 30 ms
-
Reset time, start at 2 x U
set
to 0 Min. = 15 ms
Max. = 30 ms
-
Critical impulse time, negative sequence
overvoltage
10 ms typically at 0 to 2 x U
set
-
Impulse margin time, negative sequence
overvoltage
15 ms typically -
Independent time delay to operate at 0 to
1.2 x U
set
(0.000-120.000) s ±0.2% or ±40 ms whichever is greater
Table 92. Zero sequence overvoltage protection LCZSPTOV
Function
Range or value Accuracy
Operate value, zero sequence overvoltage (1-200)% of UBase ±0.5% of U
r
at U ≤ U
r
±0.5% of U at U > U
r
Reset ratio, zero sequence overvoltage >95% at (10–200)% of UBase -
Operate time, start at 0 to 2 x U
set
Min. = 15 ms
Max. = 30 ms
-
Reset time, start at 2 x U
set
to 0 Min. = 15 ms
Max. = 30 ms
-
Critical impulse time, zero sequence
overvoltage
10 ms typically at 0 to 2 x U
set
-
Impulse margin time, zero sequence
overvoltage
15 ms typically -
Independent time delay to operate at 0 to
1.2 x U
set
(0.000-120.000) s ±0.2% or ±40 ms whichever is greater
1MRK 506 372-BEN -
Line distance protection REL670 2.2
Product version: 2.2
98 ABB