--
ANALYZER OF THE QUALITY OF ELECTRIC POWER SUPPLY
QNA-303 --
Page
19
6.1.- Operation setup of the QNA-303 analyzer
Points to be user-defined are following:
6.1.1.- Transformation ratios of voltage transformers
The
QNA-303
analyzer can take measurements through voltage transformers.
•
Voltage primary value / Voltage secondary value:
Set the
transformation ratio of voltage transformers used for measuring purposes.
In case of a direct measurement of the voltage (no voltage transformer
used) then just set 1/1.
6.1.2.- Features of the monitored electrical network
•
Rated voltage:
The rated voltage of the power system to be monitored by
the
QNA-303
. When the measurement is direct, that is, no voltage
transformer is used, then this voltage matches the network rated voltage. If
any .../110 V~ voltage transformer is used, then the rated voltage to be set
results from the application over the network rated voltage of the
transformation ratio. A right configuration of this point is essential since
permits setting the limits for the analysis of the electric power supply
quality.
•
Rated frequency:
The rated frequency of the power system to be
monitored by the
QNA-303
. This parameter is necessary for the calculation
of the signal RMS value in extreme quality networks.
•
Measurement type:
The
QNA-303
must be set according to the
distribution system to be monitored, whether with neutral conductor (4
wires) or without neutral conductor (3 wires). A proper setting of this point
is essential to assure a right detection of event occurrences. This choice
must also match the inner bridge position (See section 5.1.1.-)
6.1.3.- Data collection process features
•
File name:
Name of the file to be used for data recording (not modifiable).
•
Recording period:
Integration period for data recording into memory of all
selected parameters. Average, maximum and minimum values obtained
over this integration period will be recorded (See Section
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encuentra el origen de la referencia.
).
