Answer / harish

in general earthing and neutral is done for ac currents
grounding is for dc currents



in which earthing is used to reduce the short losses like
current shock and over heating of components

where in case of neutral is a common wire or point with
zero potential used as a reference one in connections

sir, my question is that if we start any three phase induction motor with star connection.will be current taken ? please send a formula.

4 Answers   ABB,

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Define newton's law of viscosity.

0 Answers   Godrej,

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what happens to the water pump if ground water level is slowly decreasing?our water pump is varying from no-load full-load due to this problem

0 Answers  

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how to create new innovation what are the supporting sources in the electrical field for Electrical engineers.....?

1 Answers  

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1hp= how much rpm

0 Answers  

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what is the use of conservator in a transformer?

6 Answers   L&T, TATA, Tata Motors,

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what s d difference between inverter an ups

1 Answers   Jindal,

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my question is that....few days ago i had installed a three phase motor starter for an electric saw.the motor will run and make the hydraulic pressure which will be goes to pressure cylender by up and down lever.two number of limitswitches are also installed on cylinder for safety of motor.now when the arm of cylinder reaches to the upper or lower limit it will cut the motor's line.and motor will be stop.now wana know that what will i do that motor runs continue after the limitswitch cut it down but it shold not be made any pressure.pls answer me in brief.

3 Answers  

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sir,in our plant we r using SATEC PM172E power reading meeters in HT panel side it is monitoring the MB data smart viewer(sever).but last one week we did not get readings inthe server only available in meeter.tell me how communicate meter and server. and also what steps we take for checking.

0 Answers  

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3phase motor can be used as a Prime mover for alternator.

0 Answers  

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what is power frequency withstand and impulse withstand of a circuit breaker?

2 Answers   Power Grid,

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what is the difference between watts and volts?

2 Answers  

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