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  • No : 22100
  • Release Date : 2018/08/22 16:30
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Influence on external measurement device

Sometimes a tan delta measuring device approximately 5 m apart from the inverter becomes unavailable for measurement.
It is an old device with no protection. Is this caused by noise or harmonics?
What countermeasure is effective?
Category : 


It is considered that malfunction of the measurement device is due to noise.
Check the noise propagation route since the countermeasure depends on it.
Some countermeasure against noise are as follows:
- Change the inverter's carrier frequency to a lower value.
- Keep the inverter, power cable, and sensor signal cable apart from each other as far as possible
- Install noise filters
- Use shielded cables
- Use shielding plates
Product Name
Inverter, magnet motor drive
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