Answer / pillay

You need a magnetic field to produce electrical energy.This
can be produced from electro magnetic means . What if during
a power failure when the DG set usage is most wanted and the
electrical source from a battery is also not available say
due to battery failure or discharged battery.To avoid such
situation a permanent magnet is used instead for initial
excitation.

on whcih cycle does gas turbine works?

2 Answers  

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Generally the incandescent lamps in bathrooms fuse due to high voltage at night.What is the simple solution of this problem?

4 Answers  

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For backup batteries connection,which method is best? series or parallel ?  

3 Answers   ABC,

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types of transformer ?

3 Answers   CG, JLL,

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I have 800 Amps MG Fix type breaker It is in on line & it has been given only UV (under voltage)coil connection for tripping purpose.now it is not working properly means its getting tripp so how can i replace it or how can i rectify the problem without destrubing my load??????????

2 Answers  

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How conventional fire alarm system works?

1 Answers  

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What is the difference btwn grounding and earthing?

11 Answers   HAL,

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Why use only DC supply to charge batteries why not AC Supply??

3 Answers   APC, Emerson,

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WHY DIODE IS CONNECTING ACROSS SWITCHES

5 Answers  

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How do you select a cable size(cu and Al) for a particular load

6 Answers   Pepsi,

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what is the purpose of bypass mode in energy lighting transformer?

0 Answers  

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In 11/0.414 KV Parralel supply network with Bus tie closed what will be the fault level is it doubled or halved??

0 Answers  

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