what is a synchronizing lamp ?

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How do performance buccholz relay testing in power transformer

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How one can check the faulty capacitor, diode when connected in the circuit ? and when you can not take them out ?

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what is the knee point voltage ? what is differtial rela? what is impedance and % of impedane? what is the postive phase sequance ? negative phase sequane ? and zero sequance impedance ? what is sortcircuit calculaion? why take calculation? define stabilty test ? why? what sentivity test? define merz protection ? what is the burden ? class 5p10, accracy, metering ct take knee point voltage test thet time what heppan why dont take knee point test to metering ct?

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what is derating factor in Cable ? how we minimise this?

18 Answers   Bhel, College School Exams Tests,

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Is it possible to connect a dYN1 transformer in parallel with a YNd11 transformer.

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HOW DOES THE PERCENTAGE DIFFERENTIAL PROTECTION WORK IN POWER TRANSFORMER

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what is the advantage of connecting capacitors in delta than in star?

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any idea abt REVERSE METERING concept.........?

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if a train is running on a speed of 40 K MPH and crosses a individual passing by him in 48 secs who is riding a horse with a speed of 25 K MPH. what is the length of the train?

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How to distinguish whether MCB is DC or AC looking at it physically

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sometimes, eventhough the HV side of the transformer is opened there is a voltage in LV side .How is it possible?

4 Answers  

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