Answer Posted / p.mathavan

A power transformer is one in which, it is provided for a particularmachine. say for example; induction hardening m/c whenever the m/c works, the Tr also works.if u switch off the m/c it wont work.

A distribution transformer works , through out day and night whether the load is there or not. so only we are finding the allday efficiency.we can find this transformerin the streets.

how to find number of run cable laying[LT side] for transformer & alternator secondary side? [above condition for getting output power transformer to main panel side] give the example.

2069

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my name is venkat .i have good percentage in my academics(ssc 86, intermediate 83 b.tech 73) my question 1..after completion of my ssc i joined in bpc but i didnt got rank in emcet so i completed MPC in one year compartmentally ..so here what am expect question from this background?

1915

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What is step signal?

1031

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Where servomechanism is used?

1092

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What are the advantages and disadvantages of open loop control system?

1109

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Define maximum demand?

1055

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What is the difference between electronic regulator and ordinary electrical rheostat regulator for fans?

1097

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what is negative d.c. voltage, why this voltage is used in base transciever station.

2157

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I need the recommended size for a 3 phase transformer at 13.8 KV Primary and connected loads of 3000 kVA at 4200 volts and 2375 kVA @ 480 volts AC.

2010

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Transmission through a short line depends on

2252

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What do you mean by turns ratio of instrument transformer?

1090

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BRIEFLY EXPLAIN THE STORAGE CLASSES AND THEIR TYPES IN C

2322

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How to Calculate KA Rating of Main LT Panel

1744

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why need to be maintain power factor for industrial customer?

5056

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How will calculate losses in an multi core Aluminium LT cable of different sizes & upto what length we can use a LT Cable ?

2142

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