Situation after CT Primary Injection: New 230kv breaker Testing CT’s, 4000/5, by high current injection injecting 80 amps A phase to ground the secondary leads are shorted in a junction box A-B-C-N
Continue readingTransformer vector groups can be a difficult concept to understand. I was lucky because the transformer ratio test-set I used for the first couple of years in my career allowed me to make three-phase connections,
Continue readingI co-wrote an article for the NETA World magazine in 2004/2005 that covers several different manual techniques for potential transformer testing that explains several low-tech solutions for potential transformer
Continue readingI wrote an article for the NETA World magazine in 2004 that covers several different manual techniques for Current Transformer Testing that should help even the most experienced technicians. Here’s
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