what is skin effect? why is it absentin dc system

Answer Posted / raj

Generally the conductors are composite in nature, means it
is made by multiple coil twist one onother.When alternating
current, passes through the conductor then more fluxes cut
by the inner coil than the outer.So, the inductance
(L=Nxflux linkage/i) of the inner conductor will be more
and also reactace(X=wL) will be more.For that reson less
current will flow innersurface of the conductor than
outer.That is call skin effect.

Is This Answer Correct ?    20 Yes 7 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

How to select the proper VSD to operate high inertial load

1282


why lightning arrestor are made in two stack of insulator but why not cvt

1500


I am shobana from Chennai. I am having my personal interview on 19th Dec at Chennai.kindly mail me the questions to mail id shobana.shanthi@gmail.com

1875


what is apparent poewr, reactive power, & active power?

1730


What is the difference between earth fault protection of motor feeder with CBCT and Without CBCT ?

2290






We have two parts in generator, electrical & mechanical. how it works?

1511


How select ELCB for 32amp. socket having quantity 12Nos. We have to do this wiring in PLANT. Please Also explain the incoming cable specification.

1488


What is the difference between isolators and electrical circuit breakers?

629


what is the function of capacitor duty contactor in an capacitor panel???

3622


What must be the minimum distance maintained between 2 Generators as per International standards?

1589


What is ignition module of a CAT Gas Genset G-3508 Engine, Alternator SR4B Series. HOw its checked for correct functioning.Is it repiarable or replacable?

1735


How to check the LM324 Ic

8028


What types of high speed CMOS circuits have you designed?

1636


how hazordious area is classified at an oil & gas plant and categorise suitable class of electric equipment in that area like induction motors, LCS, Lighting Fixtures Fluerescent/Flood lights Mercury& sodium lights, J.Bs, Power Cables etc

1355


WHY EXCITER PHASE SEQUENCE ARE OPPOSITE THAN STATOR SUPPLY PHASE SEQUENCE IN SYNCHRONOUS MOTOR >

1444