Answer / salman younas

hahahah




harmonics are the multiple of bacic frequency...

Answer / sneha shukla

Harmonics are electric voltages and currents that appear on
the electric power system as a result of certain kinds of
electric loads. Harmonic frequencies in the power grid are
a frequent cause of power quality problems

Answer / kundan malani

harmonics are disturbances of the supply frequency so the
frequency are not purely in supply

Please give the formula for converting from 1 tr refrigeration to kw.

2 Answers   Bugema University,

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It is being often experienced that due to single phasing fault of any source transmission line of any closed loop synchronized circuit all the power transformers with primary stared trips but the power transformer with primary delta wont, why ?

1 Answers   MSEB,

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WHAT ARE THE SITE TEST APPLIED ON A SURGE ARRESTORS? DO MEGGER TEST APPLIED ON SURGE ARRESTOR? IF YES THEN WHAT ARE THE ACCEPTED IR VALUE REQUIRED FOR SURGE ARRESTORS FOR VOLTAGE LEVEL 11KV, 33KV, 66KV 132KV, 220KV AND 400KV?

5 Answers  

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Why are lt windings placed near the core?

0 Answers  

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What safety followup during kWh meter isolation

0 Answers  

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How line capacitance & line inductance varies with increase in height tower.

0 Answers  

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1 HP = how many kw

9 Answers  

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What is vector group? What is meant by DYN11?Why is it needed?

13 Answers   Areva, Bhel, BRG, Escorts, Fortis,

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if a 3phase 100kva distribution transformer , 400 v,50 hz, 4-wire system is loaded at 160 k.w mostly 1-phase Lighting & Airconditioning split a.c load what will be the net effect on the power system in terms of voltage, powerfactor, current , efficiency of xformer

0 Answers  

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what is pole slip ?

4 Answers   NTPC,

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What are the layers of protection over armoured cables?

3 Answers   Accenture, IOCL,

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Whether 3 phase induction motorwith 100 hp capacity , Amp 160 for which sensitive earth fault relay , type CTUM 15 can be used?

0 Answers   ONGC,

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