PENGUJIAN ELEKTRIS PADA TRANSFORMATOR DAYA 3 FASA 20000 V/6300 V 8 MVA

The transformer is an electrical apparatus that can transform electrical energy and converts electrical energy back and forth from one level to another voltage level of performance through a magnetic coupling and is based on the principle of electromagnetic induction. A transformer must be equipped with platenya name. According to the IEEE standard EASA and a transformer at the time of commissioning (the handover) should be tested first technical specifications listed on platenya name. In general, a transformer consists of a core made of iron plated, and two coils, the primary coil and the secondary coil. The ratio of the voltage change will depend on the ratio of the number of windings in the two coils. Usually the coil is made of copper wire wrapped around the \"legs\" core transformer. Then the winding insulation resistance akanterdapat that will affect the performance of the transformer proficiency level. Sometimes even the frequent damage to the prisoner isolation, and therefore the transformer must be done before operation checks that include: Resistance DC, Ratio test, Insulation Polarity, Vector Group, Short Circuit and several other tests in accordance with the manufacturer or parts quality control to test the feasibility (Quality Assurance: QA) to suit his standards