,
,
,
,
ul re ub re rline il re xline il im
=
-
×
+
×
EQUATION2082 V1 EN-US
(Equation 11)
,
,
,
,
ul im ub im xline il re rline il im
=
-
×
-
×
EQUATION2084 V1 EN-US
(Equation 12)
where:
ub
is the complex value of the busbar voltage
il
is the complex value of the line current (secondary side)
rline
is the value of the line resistance
xline
is the value of the line reactance
For comparison with the set-point value, the modulus of U
L
are according to
¦ U
L
¦ = (ul , re)
2
+ (ul , im)
2
EQUATION2086 V2 EN-US
(Equation 13)
4.
Inject voltage for U
B
equal to setting
USet
.
5.
Inject current equal to rated current
I2Base
.
6.
Confirm on the local HMI that service values for bus voltage and load current
are equal to injected quantities.
7.
Confirm that the calculated value for load voltage, displayed on the local
HMI, is equal to that derived through hand calculations.
8.
When setting
OperationLDC
set to
On
, the voltage regulation algorithm uses
the calculated value for load voltage as the regulating quantity to compare
against
USet
and the voltage deadband limits
UDeadband
and
UDeadbandInner
.
9.
While injecting rated current
I2Base
into the IED, inject a quantity for U
B
that is slightly higher then
USet
+ |(
Rline
+j
XLine
) · I
L
|. This will ensure that
the regulating voltage U
L
is higher than
USet
, and hence no tap change
command should be issued from the IED.
10. Reduce the injected voltage for U
B
slightly below
USet
+ |(
Rline
+j
XLine
) · I
L
|
and confirm that the calculated value for load voltage is below
USet
and a tap
change command is issued from the IED.
10.9.4.8
Parallel voltage regulation
SEMOD175185-714 v2
Master follower voltage regulation
SEMOD175185-716 v7
1MRK 506 377-UEN C
Section 10
Testing functionality by secondary injection
Railway application RER670 2.2 IEC
147
Commissioning manual
Summary of Contents for RELION RER670
Page 1: ...RELION 670 SERIES Railway application RER670 Version 2 2 IEC Commissioning manual...
Page 2: ......
Page 26: ...20...
Page 54: ...48...
Page 58: ...52...
Page 62: ...56...
Page 80: ...74...
Page 188: ...182...
Page 194: ...188...
Page 204: ...198...
Page 214: ...208...
Page 215: ...209...