Siemens 7SJ82 - Application and Setting Notes Voltage Controllers

Table 8-28 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
Measured 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 8-29 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 Voltage Controllers
Two-Winding Transformer: General
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.
Three-Winding Transformer and Grid Coupling Transformer: General
Winding 1
Parameter: Rated current
•
Default setting (_:2311:101) Rated current= 1000.00 A
Parameter: Rated voltage
•
Default setting (_:2311:103) Rated voltage = 400.00 kV
Winding 2
Parameter: Rated current
•
Default setting (_:2311:102) Rated current= 1000.00 A
8.9.4
Control Functions
8.9 Voltage Controller
1212 SIPROTEC 5, Overcurrent Protection, Manual
C53000-G5040-C017-8, Edition 07.2017