Answer / john

gass lamp

what is the use of back emf?

1 Answers  

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IF i have switchgear with busbar current rating of 1000Amp 35kA then is it necessary to have outgoing breaker kA rating to be equal to busbar kA rating?

6 Answers   L&T,

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WHY WE CAN GENERATE POWER IN 3PHASE MODE ONLY NOT IN 4 OR 5 PHASE?

8 Answers  

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What are capacitive,resistive,inductive surge absorbation? What is ferranti surge absorber? What is lagrangian cost? What is Px operator?

0 Answers  

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8. A DYNAMOMETER TYPE WATTMETER RESPONDS TO THE.......

1 Answers   SSC,

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why the undervoltage relay's interlock is used in earthswitch closing operation of the 400kV line scheme?

2 Answers  

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What should be the protection scheme for a 15kw, 3-phase motor working in a lathe machine.

0 Answers  

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How to know the back up time for a 5KVA UPS which is connected to 15 nos. of computers? Is there any formula for this? pls. tell me.

1 Answers   S V Sugar,

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What Is HO factor in power selection

0 Answers   Wonderla Holidays,

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. What should be the minimum and maximum ohmic value for earthing?

1 Answers  

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Write a note on RC operational amplifier as integrator

1 Answers  

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why we use ac supply as 415 volts instead of 415 v why we cant apply 230 v for dc

0 Answers  

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