Edit Measured And Metered Values; Overview Of Measured And Metered Values - Siemens SIPROTEC 5 Operation Manual

8.5

Edit Measured and Metered Values

Overview of Measured and Metered Values

8.5.1
The SIPROTEC 5 devices have numerous measured and metered values. The following
overview of the scope and sequencing principle. Measured and metered values will be referred to hereafter as
measured values.
Please refer to the Device manual of your SIPROTEC 5 device for detailed information and setting instructions.
Table 8-7
Measured / Metered
Values
Operational measured
values
Fundamental and symmet-
rical components
Protection-specific Meas-
ured values
Average values
Minimum and maximum
values
SIPROTEC 5, Operation, Manual
C53000-G5040-C003-7, Edition 06.2016
Overview of Measured Values
Description
RMS value calculation and power calculation by definition, convertible to
primary, secondary or percentage values
•
Phase currents I
•
Ground current I
•
Phase-to-ground voltages V
•
Phase-to-phase voltages V
•
Residual voltage V
•
Frequency f
•
Powers P, Q, S (3-phase and phase-specific)
•
Power factor λ
Calculation of indicator quantities via Fourier filter or according to the trans-
formation rule
•
Phase currents I
•
Ground current I
•
Phase-to-ground voltages V
•
Phase-to-phase voltages V
•
Residual voltage V
•
Symmetrical components 3I
Measured values that are especially calculated for individual protection func-
tions such as
•
Distance protection (reactances and resistances of conductor loops)
•
Differential protection (differential and restraint current conductor)
•
etc.
Average values can be formed on the following basis:
•
Operational measured values
•
Symmetrical components
The time slot for average-value generation and the output interval are param-
eterizable.
The minimum and maximum values can be formed on the following basis:
•
Operational measured values
•
Symmetrical components
•
Selected measured values (for example of average values)
The display of minimum and maximum values contains the time of their
occurrence. The calculation is stabilized against smaller value fluctuations in
currents and voltages.

8.5 Edit Measured and Metered Values

, I , I
A B C
, I (sensitive)
N NS
, V , V
A B C
, V , V
AB BC CA
NG
, I , I
A B C
, I (sensitive)
N NS
, V , V
A B C
, V , V
AB BC CA
NG
, I , I , V , V , V
0 1 2 0 1
Operation in the Operating State
Table 8-7 gives you an
2
141