diff.between servo motor and ac motor

0 Answers   Power Grid,

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what is the pressure of vacuum circuit breaker

2 Answers  

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electricity board have asked me what size meter i need fitted in my garage, its a 415volt supply and i want to run six 20amp supplies tolifts and things plus ten florry lights , what kva meter do i need??

2 Answers   HCL,

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how to calculate the bus-bar size. give formula with description

1 Answers  

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Explain the operation of grid connected central solar inverter ?

0 Answers  

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why the vector group of excitation transformer is YD5(150 deg)how is this factor decided.

1 Answers  

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if 400kv line is connected to the load but neutral ii not be connceted then wt ll happen

1 Answers  

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How much heat will a 2500 KVA transformer will generate ?

5 Answers  

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how fault in an electric system is detected & hw protection of equipments is done ?

6 Answers   NTPC, RLY,

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I have a 600VA numeriv digital UPS for computer only. It holds for 15 minutes only. but i am try to using home CFL Light I cant using UPS 2 or 3 secound automatic off .but computer ok how to change this is in to ups ?

1 Answers  

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What is mean by Power factor

5 Answers   Fenner,

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* Signal transmission in sky wave propagation is due to ? a) Reforction of wave b) Reflection of wave c) Pierus through Inosphere d) None and Reason for this is????

2 Answers  

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