Siemens 6MD85, Manual

Page: 488 / 1256

Table 6-30 Possible Fundamental Values for the Voltage Controller Function Group
Fundamental-Component Values Primar
y Secon-
dary % Referenced to
I
A
, I
B
, I
C
Phase currents A A Rated operating current of the
primary system
I
N
Zero-sequence current A A Rated operating current of the
primary system
V
A
, V
B
,V
C
Phase-to-ground voltages kV V Rated operating voltage of the
primary system/√3
V
AB
, V
BC
, V
CA
Phase-to-phase voltages kV V Rated operating voltage of the
primary system
V
N
Measured neutral-point displace-
ment voltage kV V Rated operating voltage of the
primary system/√3
Table 6-31 Possible Power Measured Values of the Voltage Controller Function Group
Power Measured Value Primar
y Secon-
dary % Referenced to
P
total
Active power
(total power) MW W Active power of the primary system
√3 ⋅ V
rated
⋅ I
rated
Q
total
Reactive power
(total power) Mvar var Reactive power of the primary
system
√3 ⋅ V
rated
⋅ I
rated
S
total
Apparent power
(total power) MVA VA Apparent power of the primary
system
√3 ⋅ V
rated
⋅ I
rated
Cos φ Active power factor (abs) (abs) 100 % corresponds to cos φ = 1
Application and Setting Notes
General
The following application and setting notes refer to a two-winding transformer. The additional parameters for
a three-winding transformer or for a grid coupling transformer are marked correspondingly.
Parameter: Rated current
•
Default setting
(_:2311:101) Rated current
=
1000.00 A
Parameter: Rated voltage
•
Default setting
(_:2311:102) Rated voltage
=
400.00 kV
The measured values of the voltage controller can be displayed as primary values, secondary values, or in
percent. With the
Rated current
and
Rated voltage
parameters, you set the reference value for the
percentage values.
6.9.4
6.9.4.1
Control Functions
6.9 Voltage Controller
488 SIPROTEC 5, High-Voltage Bay Controller, Manual
C53000-G5040-C015-9, Edition 11.2017