Transformer Servicing

Electrical transformers are an expensive and important part of any machinery. So for getting optimal performance and increased product life, it is best to conduct regular maintenance check ups on your machinery. There are basically two types of transformer maintenance. One is done on a regular basis and the other is done at the time of urgency. If maintenance checkups are done on a routine basis then you may not have to undergo breakdown maintenance and hence save downtime.

A current transformer is a vital part of any equipment installed in an electrical substation for protection purposes as well as for electrical measurement. Insulation resistance of the CT has to be checked on an annual basis.Thermo vision scanning of primary terminals and the top dome of a live CT must be conducted on an annual basis. All CT secondary connections should be examined, cleaned and tightened each year to ensure that the secondary currents have the lowest resistance path.

Although your electrical transformer may keep on working smoothly, the continuous damage of the electrical vents and lack of even minimal maintenance can accelerate the inevitable failure of your transformer. To avoid this, contact our professionals now!

  1. Dissolved Gas Analysis

    Late detection of fault in transformer will lead to unwanted damage. The cost for repairing will definitely be costly as transformer is an expensive machine. To prevent this, PQE provide solution that is Dissolved gas analysis (DGA) of transformers. DGA can provide insights into electrical stresses and thermal sustained by oil-immersed power transformers. Besides, DGA is a sensitive and reliable technique for detecting incipient fault conditions in oil-immersed transformers. As it detects hidden transformer faults, DGA can surely help prevent further damage. 

  2. HiPOT Test / IR Test measurement
In electrical machine such as transformer, the cable's integrity and its ability to tolerate high voltages of a particular amount of electricity is crucial to ensure safety and quality of operation which could also be life-threatening if a failure occurs. To ensure this, a test should be conducted to check and ensure the flow of current from one point to another smoothly. The test checks Testing in cable assemblies or wire harnesses ensures reliability, Isolation between circuit components maintains the safety and quality of all electrical circuits. The current engineering practice is by using Hipot test. The Hipot test is significant because it determines the level of electrical insulation of a certain device or assembly. Fortunately, PQE provide the service for HiPOT Test. Save your transformer today by contacting our professionals today!
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