ABB RET670 Product Manual page 71

ABB
Transformer protection RET670
Pre-configured
Product version: 1.1
Control
Table 54. Synchronizing, synchrocheck and energizing check SESRSYN
Function
Phase shift, j - j
line bus
Voltage ratio, U /U
bus line
Voltage high limit for synchronizing
and synchrocheck
Reset ratio, synchrocheck
Frequency difference limit between
bus and line
Phase angle difference limit
between bus and line
Voltage difference limit between
bus and line
Time delay output for synchrocheck (0.000-60.000) s
Voltage high limit for energizing
check
Reset ratio, voltage high limit
Voltage low limit for energizing
check
Reset ratio, voltage low limit
Maximum voltage for energizing
Time delay for energizing check
Operate time for synchrocheck
function
Operate time for energizing function 80 ms typically
Range or value
(-180 to 180) degrees
(0.40-25.000) % of UBase
(50.0-120.0)% of UBase
> 95%
(0.003-1.000) Hz
(5.0-90.0) degrees
(2.0-50.0)% of UBase
(50.0-120.0)% of UBase
> 95%
(10.0-80.0)% of UBase
< 105%
(50.0-180.0)% of UBase
(0.000-60.000) s
160 ms typically
1MRK 504 091-BEN B
Issued: June 2010
Accuracy
-
-
± 1.0% of U at U ≤ U
r r
± 1.0% of U at U >U
r
-
± 2.0 mHz
± 2.0 degrees
± 1.0% of U
r
± 0.5% ± 10 ms
± 1.0% of U at U ≤ U
r r
± 1.0% of U at U >U
r
-
± 1.0% of U
r
-
± 1.0% of U at U ≤ U
r r
± 1.0% of U at U >U
r
± 0.5% ± 10 ms
-
-
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