Siemens 6MD85, Manual

Page: 196 / 1256

Measured Values Primary Secon-
dary
% Referenced to
V
AB
, V
BC
, V
CA
Phase-to-phase voltages kV V Rated operating voltage of the primary values
V
0
Zero-sequence voltage kV V Operating rated voltage of primary values/√3
V
NG
Neutral-point displacement
voltage kV V Operating rated voltage of primary values/√3
f Frequency Hz Hz Rated frequency
P
total
Active power
(total power) MW W Active power of the primary values
√3 · V
rated
· I
rated
Q
total
Reactive power
(total power) Mvar var Reactive power of the primary values
√3 · V
rated
· I
rated
S
total
Apparent power
(total power) MVA VA Apparent power of the primary values
√3 · V
rated
· I
rated
Cos φ Active power factor (abs) (abs) 100 % corresponds to cos φ = 1
P
A
, P
B
, P
C
Phase-related active power MW W Active power of the phase
V
rated phsx
· I
rated phsx
Q
A
, Q
B
, Q
C
Phase-related reactive power Mvar var Reactive power of the phase
V
rated phsx
· I
rated phsx
S
A
, S
B
, S
C
Phase-related apparent power MVA VA Apparent power of the phase
V
rated phsx
· I
rated phsx
The operational measured values are explained in more detail in chapter 9.3 Operational Measured Values .
Output Logic
The output logic treats the pickup and trip signals of the protection and supervision functions that are avail-
able in the function group separately, in a pickup logic and a trip logic, respectively. The pickup and trip logic
generate the overreaching indications (group indications) of the function group. These group indications are
transferred via the Protection information interface to the Circuit-breaker function group and are processed
further there.
The pickup signals of the protection and supervision functions in the Voltage-current 3-phase function group
are combined in a phase-selective manner and output as a group indication.
[lo_anrlin, 3, en_US]
Figure 5-5 Creation of the Pickup Indication of the Voltage-Current 3-Phase Function Group
The trip signals from the protection and supervision functions of the Voltage-current 3-phase function group
always result in 3-pole tripping of the device.
Function-Group Types
5.2 Function-Group Type Voltage/current 3-Phase
196 SIPROTEC 5, High-Voltage Bay Controller, Manual
C53000-G5040-C015-9, Edition 11.2017