What is the working principle of ceiling fan?

6 Answers   Indian Navy,

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how to select the automotive wire size by mathematical calculation. for xenon headlamp with ballast. the ballast given data voltage 10-17v,current permenant 6amp, run up phase is 15amp, peak at swicth on max 400micro sec is 40amp.the sum of cable resistance is 150mohm.please provide referenc document if any for relating the peak at switch on current,time & wire wire size

0 Answers   Tyco,

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If u have Powergrid model question papers Please send to below mail ID rajutheprince@gmail.com

0 Answers  

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I know during Surge Impedance Loading maximum power is transferred through a transmission line and also Sending end voltage becomes equal to Receiving end voltage i.e Vs=Vr so my question is if both end voltages are equal then how current travels in such line hence how power is transmitted because flow of current needs Potential difference??

3 Answers   NTPC,

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i am studying in final year can i allowed for 23rd UES of Indian army

0 Answers   TCS,

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whydoes the p.f of diesel generator always be 0.8 explain how will you determine the shortcircuit capacity of network

1 Answers   Dalkia,

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Getting nusense tripping in a 11KV soft starter, have checked all it control supply & contactors but did not get any fault please help.

3 Answers  

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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 slip ring induction motor? How it works?

1 Answers  

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difference between a four point starter and three point starter

9 Answers  

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WHY THE RATINGS OF THE TRANSFORMER IS 33KV WHY NOT OTHER???

0 Answers   Lanco,

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dc supply given to dc generator winding.how is possible? my knowledge is saying the winding will burn. please reply.

0 Answers  

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