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Technical description
2 Protection functions
2.10 Synchrocheck (25)
VM55.EN005
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71
Measured and recorded values of synchrocheck stages
SyC1 (25):
Parameter Values Unit
Description
Measured
values
df
-
Hz
Measured frequency
difference
dU
-
% Un / deg Measured voltage
amplitude and phase
angle difference
UState
-
-
Voltage status (e.g. DD)
SState
-
-
Synchrocheck status
ReqTime
-
-
Request time status
f
1)
-
Hz
Measured frequency
(reference side)
fy
1)
-
Hz
Measured frequency
(comparison side)
U12
1)
-
% Un
Measured voltage
(reference side)
U12y
1)
-
% Un
Measured voltage
(comparison side)
Recorded
values
ReqCntr
-
-
Request counter
SyncCntr
-
-
Synchronising counter
FailCntr
-
-
Fail counter
f
1)
-
Hz
Recorded frequency
(reference side)
fy
1)
-
Hz
Recorded frequency
(comparison side)
U12
1)
-
% Un
Recorded voltage
(reference side)
U12y
1)
-
% Un
Recorded voltage
(comparison side)
dAng
-
Deg
Recorded phase angle
difference, when close
command is given from
the function
dAngC
-
Deg
Recorded phase angle
difference, when the
circuit-breaker actually
closes.
EDly
-
%
The elapsed time
compared to the set
request timeout setting,
100% = timeout
1) Please note that the labels (parameter names) change according to the
voltage selection.
Содержание VAMP 55
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