Answer Posted / chirag

class ps ct's are special class ct's which are used in
protection where high accuracy is required other than that
5p10 are used.accuracy of 5p10 is less than class ps ct's.

In cable sizing calculation (determining the max route length of cable) why we choose the shortest length between cable length of full load current Iflc & starting current Istart?

3325

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What is a surge supressor why its is used in synchronous generators

2021

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How to select, design,size & calculate for 11 KV/33KV/66KV/132KV/220 KV/440 KV circuit breaker for HT side of transformer protection/HT distribution protection?

2760

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What difference between ref protection and differential protection ?

1862

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what is frequency response?

1150

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all interview questions with answers of ntpc (2000-2009

2218

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how to select size of hardware for linking aluminium busbar is it depend on area of busbar or current flowing through bus bar

2027

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How to calculate VA rating for CT or PT or Control Transformer?

2855

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why you don not show protection and type of isolation in key single line diagram?

1986

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hi frnds can any one help me ? plz send me placement paper of IOCL of Electrical streem .... plz send ....its urgent....

1735

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A 3-phase IM is supplied from 50 Hz system. It runs at speed of 1440 rpm and slip equal to 4 %. Calculate number of pole pairs. A 1 B 6 C 2 D 3

2023

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In ht capacitor ckt we are using LBS Panel it having isolator with fuse, one of HT fuse flash over, so what is reason behind this event.

2089

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what is the benefit of floating our DC source? if i have two floating DC source of which 1 has a ref voltage of -21VDC and the other of -18VDC. can it be connected in parallel to share a common ref voltage? if not, how do i make both sources to be of common ref voltage? tks

1899

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how to calculate the size of the HT cable

1899

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What kind of preventive maintenance are there for transformer?

2279

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