Answer Posted / mallu byali

It is loss the efficiency of transformer and may chance to
break down failure while loading (in loading oil temp will
get rise then water is going to separate from oil as well
as it will vaporized and affect the tx ventilation)

what is a pulse transformer? how rise time of pulse changes when ever the voltage changes?

1901

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as a electrical student why should i hire you?

2439

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why transformer tank is in rectangular shape what happen when it is in step shape

1390

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Hi, Next week Iam appearing RRB exam for section engineer. So help me to get modal question papers for this position. Iam very thankful to you. Whether question will be fully techanical format or general form. Please give me a details regarding this exam.

1852

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distribution transformer de-rating formula on over limit iron losses  

2243

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What is the effect of interchanging core(made of steel) and winding(made of copper) material in case of transformer? Give proper explanation in regard to different losses in transformer.

1830

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Apparent power is expressed as V * I(Conjugate). Why not in V * I ?

3853

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number of I/O devices in siemense plc

2078

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my UPS suddenly goes off and all panel light also blow off.This happens even main electric supply is not interrupted.After some time it automatically starts functioning normally.Batteries are new.

1998

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i want to know about torque of slip ring induction motor

2083

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why connecting surge unit in contactor coil

1824

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when the time of backcharging the transformer three phases only enough or three phase with neutral is must.from these which one is the best one.

1996

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Transformer how to maintaince a check b check c check d check

2041

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what is meant by vector group of a transformer? How can it be derived?

1936

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stand by earth fault protection (51G) for transformer rating 2000 kVA,Dyn11,33/0.400 V. LV NCT ratio and necessary resistor and metrosil values how to calculate

2752

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