[حمید]

برای تستهای ترانسهای اندازه گیری می توان به استانداردهای بین المللی از جمله IEC 60044 , ANCI و BS مراجعه نمود. اگر تست خاصی مورد نظر است بفرمائید تا اختصاصاً بدان پرداخته شود. A number of routine and type tests have to be conducted on CT s before they can meet the standards specified above. The tests can be classified as: a. Accuracy tests to determine whether the errors of the CT are within specified limits. b. Dielectric insulation tests such as power frequency withstand voltage test on primary and secondary windings for one minute, inter-turn insulation test at power frequency voltage, impulse tests with 1.2u/50 wave, and partial discharge tests (for voltage >=6.6KV) to determine whether the discharge is below the specified limits. c. Temperature rise tests. d. Short time current tests. e. Verification of terminal markings and polarity. Also a number of routine and type tests have to be conducted on VT s before they can meet the standards specified above. The tests can be classified as: a. Accuracy tests to determine whether the errors of the VT are within specified limits b. Dielectric insulation tests such as power frequency withstand voltage test on primary and secondary windings for one minute, induced over-voltage test , impulse tests with 1.2u/50u wave, and partial discharge tests (for voltage>=6.6 KV) to determine whether the discharge is below the specified limits. c. Temperature rise tests d. Short circuit tests e. Verification of terminal markings and polarity