Wind Project
The Issue – Appointed by the client to perform Partial Discharge (PD) Assessments on HV assets within several Wind Turbines Generators (WTG)
County Tyrone,
N.Ireland
2 Days
33kV
At times this may be due to the slow and progressive degradation of the insulation over many years of energized service, however another possibility may be degeneration, this can destroy a perfectly good Bushing in a matter of hours.
Note: Red trace is ‘base’ dB reading & Purple trace is ‘asset’ dB reading.
An oil sample was taken from the transformer and assessed at site with DGA results showing no abnormal activity within, therefore, suggesting that the potential PD issue as most likely to be on the HV cable terminations of the transformer.
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