Circutor Q20711, Руководство пользователя

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Remarks
The QNA-P/PV analyzer may indicate that it is incorrectly installed or
configured. Possible causes might be:
•
Voltage values flashing on the display . Possible causes might be:
−
The analyzer detects an event: This can mean a real event in the network,
or a wrong rated voltage setting where the set value does not match the
actual network voltage..
−
If the unbalance screen displays dashes , there is an incorrect phase
sequence.
•
Power screens with a negative sign:
−
The installation is generating energy, or, the current transformer polarity is
inverted.
−
PF values are wrong. Check the voltage and current phase wiring, the
phase sequence is probably not correct.
8.- SETTING UP THE QNA-P/PV
Any setup action for the QNA-P/PV analyzer must be always done
through a PC
The QNA-P/PV analyzer’s performance will depend on the user-configuration
of the instrument. There are two different setup procedures for configuring the
analyzer:
•
Operating Setup: To define the QNA-P/PV analyzer’s operating mode.
•
File Setup: To define the data collection procedure of the QNA-P/PV
analyzer in the internal memory.
8.1.- Operating setup of the QNA-P/PV analyzer
The user defined procedures are listed below:
8.1.1.- Transformation ratios for voltage and current transformers
The QNA-P/PV analyzer can measure via transformers.
•
Voltage primary value / Voltage secondary value: Setting the
transformation ratio for voltage transformers used in measuring. Set 1/1 for
direct voltage measurement (no voltage transformer used).
•
Current primary value: Setting the primary value for the current
transformers used in measuring.
•
Neutral current primary value: Setting the primary value of the current
transformer used in measuring Neutral current