What are IR Test and PI Test || Motor & Transformer Testing 

types of motor testing - polar index test and insulation resistance difference - electrical interview question
Dosto aaj hmne polarization index test or insulation resistance test kaise karte hai bataya hai? sath hi what is good insulation condition in pi test? jaise sawalo ke jawab simply explain karne ki kosish hai.
#megger #motortest #transformertest #electricaldost
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