how many test is necessary for 27mva transformer.
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Answer Posted / satya dev
Basicaly Transformers having two type of tests 1-
Manufacturing & 2- Field test, Manufacturing test are
described Above & Field tests are carried out during the
Commissioning at site.Field tests are given belwo..
Insulation Resistance Test- Phase to Phase, Phase to Earth,
Winding Resistacne Test.
Testing & setting of WTI & OTI.
Vector Group Testing.
Magnetinc Ballance Test
Ratio Test.
Knee Point Test.
Tan Delta Test ( This is Also IR test)
Hi Voltage Impulse Test (if Client requested)
etc...
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