Control
M12359-1 v12
Table 80. Synchronizing, synchrocheck and energizing check SESRSYN
Function
Range or value
Accuracy
Phase shift,
j
line
-
j
bus
(-180 to 180) degrees
-
Voltage high limit for synchronizing and synchrocheck
(50.0-120.0)% of UBase
±0.5% of U
r
at U ≤ U
r
±0.5% of U at U > U
r
Reset ratio, synchrocheck
> 95%
-
Frequency difference limit between bus and line for synchrocheck
(0.003-1.000) Hz
±2.5 mHz
Phase angle difference limit between bus and line for synchrocheck
(5.0-90.0) degrees
±2.0 degrees
Voltage difference limit between bus and line for synchronizing and
synchrocheck
(0.02-0.5) p.u
±0.5% of U
r
Time delay output for synchrocheck when angle difference between bus
and line jumps from “PhaseDiff” + 2 degrees to “PhaseDiff” - 2 degrees
(0.000-60.000) s
±0.2% or ±35 ms whichever is
greater
Frequency difference minimum limit for synchronizing
(0.003-0.250) Hz
±2.5 mHz
Frequency difference maximum limit for synchronizing
(0.050-0.500) Hz
±2.5 mHz
Breaker closing pulse duration
(0.050-60.000) s
±0.2% or ±15 ms whichever is
greater
tMaxSynch, which resets synchronizing function if no close has been
made before set time
(0.000-6000.00) s
±0.2% or ±35 ms whichever is
greater
Minimum time to accept synchronizing conditions
(0.000-60.000) s
±0.2% or ±35 ms whichever is
greater
Voltage high limit for energizing check
(50.0-120.0)% of UBase
±0.5% of U
r
at U ≤ U
r
±0.5% of U at U > U
r
Reset ratio, voltage high limit
> 95%
-
Voltage low limit for energizing check
(10.0-80.0)% of UBase
±0.5% of U
r
Reset ratio, voltage low limit
< 105%
-
Maximum voltage for energizing
(50.0-180.0)% of UBase
±0.5% of U
r
at U ≤ U
r
±0.5% of U at U > U
r
Time delay for energizing check when voltage jumps from 0 to 90% of
Urated
(0.000-60.000) s
±0.2% or ±100 ms whichever is
greater
Operate time for synchrocheck function when angle difference between
bus and line jumps from “PhaseDiff” + 2 degrees to “PhaseDiff” - 2
degrees
Min. = 15 ms
Max. = 30 ms
–
Operate time for energizing function when voltage jumps from 0 to 90%
of Urated
Min. = 70 ms
Max. = 90 ms
–
1MRK 502 068-BEN D
Generator protection REG670 2.1 IEC
Product version: 2.1
84
ABB
