ct polarity testing
ct polarity testing
(OP)
Hi I have a 230 kv ABB SF6 bkr to install and polarity teting of the bkr. CTs are required. I would like to use a lantern battery and a analog voltmeter connected to the secondary of the ct while flashing the primary with the battery. Confirm if I am doing this test correctly.
Thanks
Thanks






RE: ct polarity testing
RE: ct polarity testing
Check if the enclose refrences could help
http://www.kilowattclassroom.com/Archive/CTTesting...
http://www.kilowattclassroom.com/Archive/CurrentTr...
http://www.eettaiwan.com/ARTICLES/2002MAY/PDF/2002...
RE: ct polarity testing
Other references for DC-polarity testing in transformers are www.geindustrial.com/products/applications/GET-97D... §3 and ANSI/IEEE C57.13.1-1981 §7.