Answer / anand

KA Rating of Circuit Breaker is nothing but a Short Circuit
Breaking Current Capacity of Circuit Breakers which is
around 40 KA EHV Circuit Breaker.
The Circuit Breakers do experience Mechanical Stresses
during closing & opening operations.

Answer / chethan

kilo ampere rating

Answer / shreerang r deshmukh

It is the capacity of the breaker to sustain for the period
of 3 miliseconds. It varies as per the normal current
capacity of the breaker.

we have 3 phase 4 wire supply 230/415 V.AC and our distribution is single phase or we have all single phase 220 v,ac operated appliances. and noted the current with help of clamp meter Red to N = 20 Amps. Yellow to N = 45Amps and Blue to N = 30 Amps ( total is 95 Amps ) what will be neutral current on the main .

1 Answers   ABC,

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Whether the over frequency protection is turbine or alternator and why?

1 Answers   Marg,

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which pump used in STP

0 Answers   Dalkia,

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What is systematic error?

0 Answers  

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What is the mmf,rgt and ngt please brief completely

0 Answers   cpgn,

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Why does the radius of armature is less than the radius of pole shoe?

0 Answers   ABB,

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What is the name and type of power transformer oil?

4 Answers  

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why the impedence of the transformer is expressed in percentage?

3 Answers   DEWA,

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Why do we apply both Differential and REF (HV and LV) protection schemes on YNyn configuration of a transformer?

0 Answers   WCC,

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1 tr is equal to how many Kw .is there any specific formula for this to get the result .

13 Answers   Cipla, LG, NSN,

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sir please send me iocl written test paper in my e-mail account. i'll be obliged to you........ thank u roshan

0 Answers   IOCL,

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CT Ratio of a energy meter connection is Red Phase : 100/5A, yello Phase : 50/5A & Blue phase : 100/5 A what is the overall Multiplication factor

0 Answers  

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