Simple Measurement
Power Analyzer NORMA 4000, NORMA 5000 21
EO1111G REV G
6 Simple Measurement
This chapter contains an introduction to the measuring procedures
that can be carried out with the power analyzer, based on a simple
sample measurement. The example used here is a measurement
at the frequency converter with a fundamental below 100 Hz.
Connect the outputs of the frequency converter to the current
and voltage channels of the power analyzer (see chapter 5.5.1
“Direct connection”, page 19).
Switch on the power analyzer.
Ensure that factory configuration 1:W3 is loaded (see chapter
7.2: "Load configuration", page 23).
The settings of factory configuration 1:W3 are as follows:
- Low-pass filter on, set to 100 Hz
- Average time set to approx. 300 ms, depending on the
measured frequency
- Synchronisation source is U1.
Press measuring key WAV three times.
The rms values for power in channels 1 ... 3 are displayed.
The numbers in subscript (e.g. U
1
or U
2
) indicate the respective
channel.
Note
As the power analyzer requires a complete voltage and current
cycle for an accurate measurement, a full period is automatically
added to the average time of 300 ms of configuration 1:W3, and the
new average time is displayed. Example: 309.9 ms at 22.585 Hz,
corresponding to 7 periods.
Connection to
circuits
Configuration
Measuring
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