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What are the tests that must be made ​​to the current transformer before the introduction of current transformers in service?

What Are the tests that must be made ​​to the current transformer T before the introduction of current transformers in service

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Question ajoutée par خالد قسم الله الامين , مهندس امن وسلامة , مؤسسة رائد محمد هوساوي للامن والسلامة
Date de publication: 2013/08/26
ahmed fouad el moursy
par ahmed fouad el moursy , Electrical Engineer , Egyptian Electricity Authority

Excitation curve and parameters test

turns ratio test

Ratio and phase error test

Polarity mark check

winding resistance test

 

There are Many Tests Like wise:

  1.  Mechanical & Visual Check
  2. Insulation resistance Test
  3. Polarity Test
  4. Resistance Test
  5. Magnetization Curve Test
  6. Turns Ratio Test
  7. Primary Injection Test
  8. High Voltage Test
  9. Commissioning Test

Abdul Rasheed Thalakkotte
par Abdul Rasheed Thalakkotte , SR.TECHNICIAN , Qatar General Electricity & Water Corporation (KAHRAMAA)

CT magnetization curve - knee point, Polarity , Insulation resistance, Winding resistance, and ratio test. Lead resistance also need to measure.

 knee  point, Meggering, polarity, turns ratio.

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