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how would you come to know if a transformer is double wound
or auto? note that there is no tag. you are given only a
multimeter.
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Answer Posted / matthew
On an autotransformer there is a physical connection
between the primary and secondary and the voltage variation
is not much so the resistence steps are less. The opposite
is true for double wound transformer.
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how to find 5 kilo meter long under ground 33 kv cable fault location if IR VALUE shows 0.05 M ohm @5000 volt.and cable fault locator shows some time fault distance 3 kilo meter ,3.7 kilo meter and some time 1 kilo meter? now how to find the fault location that where is leakage. note--it is tested with 5000 kv megger and insulation resistance is 0.05 M ohm. and some time 0.03 M ohm comes.
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