Partial Discharge FAQ
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07 April 2022
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Brad Monaghan
High Voltage

Is ultrasonic testing for PD activity of pole/structure mounted HV assets applicable?
The answer is yes. We perform ultrasonic testing using the UltraDish accessory to test for discharge whilst standing at ground level. This test can also be performed from an elevated work platform if you needed to get closer for some reason. For a pole-mounted asset, we run three types of tests to give us the best chance of detecting PD activity:
- TEV – at the base of the pole
- Ultrasonic – all HV components on the pole
- UHF – all HV components on the pole
Typically, all tests are run from ground level. The Directional UHF Antenna is now available, if you have any interest, check out the ‘sensors’ tab here.
Have more questions on anything PD?
Our engineers are holding 15 minutes one-to-one Q&A sessions. To book, send in your questions and preferred time via this form.