ABB Relion REG670, Technical Manual

Page: 406 / 1298

Function Range or value Accuracy
Operate level for non-
directional overcurrent
(1.00-400.00)% of
lBase
±1.0% of I
r
at I
£
I
r
± 1.0% of I at I > I
r
Operate level for non-
directional residual
overvoltage
(1.00-200.00)% of UBase
± 0.5% of U
r
at U £ U
r
± 0.5% of U at U > U
r
Residual release current for all
directional modes
(0.25-200.00)% of
lBase
± 1.0% of I
r
at I
£
I
r
± 1.0% of I at I > I
r
Residual release voltage for
all directional modes
(1.00-300.00)% of
UBase
± 0.5% of U
r
at U £ U
r
± 0.5% of U at U > U
r
Operate time for non-
directional residual
overcurrent at 0 to 2 x Iset
Min = 40 ms
Max = 65 ms
Reset time for non-directional
residual overcurrent at 2 to 0 x
Iset
Min = 40 ms
Max = 65 ms
Operate time for directional
residual overcurrent at 0 to 2 x
Iset
Min = 115 ms
Max = 165 ms
Reset time for directional
residual overcurrent at 2 to 0 x
Iset
Min = 25 ms
Max = 65 ms
Independent time delay for
non-directional residual
overvoltage at 0.8 to 1.2 x
Uset
(0.000 – 60.000) sec ±0.2% or ± 80 ms whichever is
greater
Independent time delay for
non-directional residual
overcurrent at 0 to 2 x Iset
(0.000 – 60.000) sec ±0.2% or ± 80 ms whichever is
greater
Independent time delay for
directional residual
overcurrent at 0 to 2 x Iset
(0.000 – 60.000) sec ±0.2% or ± 180 ms whichever is
greater
Inverse characteristics 16 curve types See table 959 , table 960 and table
961
Relay characteristic angle
RCA
(-179 to 180) degrees ± 2.0 degrees
Relay Open angle ROA (0 to 90) degrees ± 2.0 degrees
8.7 Thermal overload protection, two time constants
TRPTTR
Section 8
1MRK502052-UEN B
Current protection
400
Technical manual