By testing a transformer we can confirm the performance and specification of a transformer. Some of the transformer testings will be done by the manufacturer and they are type tests and routine tests of the transformer. Certain types of tests will be carried out by the consumer to determine the ability and quality of the …
Pre-commissioning procedure of VFD Make sure the installation of the VFD is complete and proper Check for damage in the VFD If there is any damage, then the VFD must be repaired The insulation of the incoming and the outgoing power wiring must be checked We need to check if the incoming and outgoing wires …
The distribution box testing is very important and before doing this test we need to check the megger or insulation tester. In the merger we can see a red wire and a black wire connect the red wire to the megger’s line terminal and then connect the black wire to the megger’s earth terminal. Then …
How to test a three-phase distribution box by using a megger? Read More »
What is insulation-resistance? The insulation resistance can be described as the resistance offered by the insulation which covers a conducting wire that carries electrical current. The resistance that is offered by the insulation of the cable in the leakage current path is called the insulation resistance of the cable. Certain factors would affect the insulation …
What is insulation testing and why it should be done? Read More »
Introduction In an electrical device, the quality of insulation is an important factor. There will be changes in the insulation property of electrical devices according to certain factors like environmental conditions, temperature, time, etc. So we need to check the insulation resistance quality at regular intervals so that we can avoid electric shock. A megger …
Transformers are one of the costliest equipment used in distribution and transmission process of power. The transformer has to go through different testing procedures periodically to prove that the transformer works properly. Deterioration of the transformer insulation resistance is one of the most common causes of failure of the transformer: a failed transformer is a costly replacement …
How to do Megger test/insulation resistance for transformer? Read More »
What is the transformer A transformer is a device that can transfer electrical energy from one circuit to another through an inductively coupled conductor which is the transformer’s coils. A varying magnetic flux will be created in the transformer’s core by the varying current in the primary winding and thus a varying magnetic field through …
Why transformer testing is needed and how to do the maintenance of a transformer Read More »
