Answer Posted / smita

LIGHNING ARRESTER IS THE NON LINEAR RESITANC (ZINK OXIDE)
WHICH GVES LOW RESISTENCE PATH TO HIGH VOLTAGE AND HIGH
RESISTENCE TO LOW VOLTAGE,IT IS CONNECTED IN SHUNT WITH
EUIPMENT.

What are the different types of dams?

655

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at meter room 50 hrc switch installed,but there are not get earthing proper,so what happen?and 11kv transformer out put going in to hrc main 400a three nog each? so earthing is require for all switch? (some customer made earthing at there home.)

1471

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Can anyone please provide me details of MCCB/Contactor/SFU rating calculations for a motor feeder..for example 50 kw.. not from type-2 cordination chart. i want manual calculations..

2103

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what is the safety points of vaccum circuit breaker.

1642

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What is the magnetic field (coil DC ) of Turbo Expander?

1592

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What are dependent sources?

666

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i need to now what will be the cable size to the following load, transformer to distribution panel distance 110m, load 1000kw, voltage 400v, pf 0.85, permissible voltage drop 2.0%, overhead line, atmospheric temperature 35 degree c.

1191

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Define noise?

727

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I PURCHASED A DEISEL GENARATOR SET OF AVR TYPE& RATING 125KVA BUT SOME TIMES THE OUTPUT VOLTAGE IS FLUCTUATING WHAT ARE THE PROBABLE REASONS GIVE ME

1414

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how we can explain arc heatng?

1467

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What is the formula for selecting the cabels according to load? How to calculate what sq.mm cabel to be used?

993

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Why use the vcb at high transmission system ? Why can’t use acb?

803

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3 phase Motor will be given 2 phase after 2 to 5 second we given 3rd phase so Motor Run sum-time in forward or sum time run reverse direction. All time phase sequence is not change. Why motor run in reverse direction? Please Explain........

1487

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what is the minimum winding resistance of 30hp compressor, to run or to switch on

1408

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Why power factor should not be in leading (capacitive) mode of any load.

5873

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