In generation,transmission and distribution voltage frequency is either 50HZ or 60 HZ;why are only these frequencies?

2 Answers  

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write encoder 17 pins details? pin a;b+, pin b;w+,..pin s & t. what is the meaning of b+, w+? explain;

0 Answers  

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what is disadvantages of high power factor

4 Answers  

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Will u plz give me simple diagram for tube light connection & also function of chock?

8 Answers   Bhushan Power Steel, Dalmia Group, Jindal, Practical Viva Questions, TCS, Windmoller,

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gd eve frndz my qstn is how convert sound energy to electrical energy

1 Answers   HCL,

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What kinds of decision are made about CT from it's Knee point(voltage & current)?

2 Answers  

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why the carbon brushes are used heat created rotating parts in eiectricity

1 Answers  

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what is meant by a slip?

10 Answers  

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What is the effect of interchanging core(made of steel) and winding(made of copper) material in case of transformer? Give proper explanation in regard to different losses in transformer.

0 Answers  

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will there be any problem by recovering slip from single phase induction motors?

0 Answers  

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explain the what is a drive ? 0 4 which type motor r use in the celling fan..... PCB plannet 2 13 If stator & rotor of a 3-phase induction motor have different no. of poles, will the motor run or not?? types of drives Why dc supply is used for closing and tripping coil of ht breakers. What happen if we use only ups ac supply only. ACC 1 41 how the 3phase induction motor is running in 2phase supply with help of capacitor? 1 33 what is the actual difference betwen constructional details and constructional features? 1 20 how does commutator convert a.c to d.c?

0 Answers  

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how much resistence in proper earthing?

5 Answers  

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