Answer / pillay

The earth wire is used to take away any leakages to the earth
and make the TV safe if somebody were to touch it,but the tv
is already made in such a way there would be no leakage to a
place where somebody can touch it.So by making the TV set
safe to touch than no need a earth wire. Now one wire is
saved in every TV set that is made.

Answer / waseem yatoo

because earthing is not necessary but is used to avoid risks
of electric shocks.

What happens if the negative to earth voltage is greater than positive to earth voltage in the battery of substation?

0 Answers  

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CONSIDER A 415V/200V STEP DOWN TRANSFORMER.CAN WE USE USE IT AS STEP UP TRANSFORMER BY GIVING 200V IN SECONDARY AND TAKING OUTPUT FROM PRIMARY?

22 Answers   L&T,

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My energy meter ratio is -/110/root 3,1A and connected line CT is 100/1,PT is 11kv/110 so what is the MF for meter

1 Answers   Apollo,

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what kind of battery is used in laptops

4 Answers   Pepsi,

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We have drive feeding an output contactor for a 5000 hp motor @ 5kV application. The motor FLA is 629amps x 1.25% service factor = 786.25 amps The cable that we current have in place between the drive and the output contactor is 350kcmil- MV-105 (parallel cables). Per the NEC table 310.60 (C) (69). This show the cable ampacity is at 615 amps per cable for a rating of 1230 amps. We have derated the cable for the cable tray and the multiple cables application and our calculations show that after the correction factor factor we are at 922amps. 1230 amps x .75% correction factor factor = 922.5 amps. The customer is driving us to then use another safety factor of .25% off of the already derated cable. Can you please provide a longhand calculation for your solution on this application?

0 Answers   Siemens,

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Why used in layer by layer charcoal and salt used in earth pits.

11 Answers   CESC, HP,

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how the global warming take place?

1 Answers  

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why we still use sinusoidal waveforms for transmission and utilisation (we know generation is sinusoidal), instead of other ac waveforms such as triangle, sawtooth, square etc.,? is there any mathematical derivations to prove sinusoidal is efficient than others?

1 Answers  

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What are the main factors to be considered(In terms of energy conservation) while selecting a new air compressor?

1 Answers  

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What are the classifications of heating element?

0 Answers   BARC,

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Name the different control schemes of electric rive.

1 Answers   DVC,

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Why we use modulus with voltage in stability equation that is P=[E][V]SIN@/X WHY VOLTAGE IS IN MODE VALUE WHAT IS THE REASON?

1 Answers   Bhel,

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