Answer / rajiv mahajan

single phase preventer, over load relay, mpcb, mcb

Answer / d.kapil

and thermocouple

Answer / srinivasan

Earth is main safety homan & motor.

Hello Can I use step up HV transformer 440/4160V as a step down? Thanks Evgeny

5 Answers  

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What it indicates by 25/41MVA on transformer?

4 Answers  

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How many types Switchgears?

4 Answers  

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what is deffrent alternatid and gernater

2 Answers  

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how much current and power in watts can be carry by 2.5^2mm cu wire and 4 core 10^2mm Al cable?

1 Answers  

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What is the arc. I saw word arc in between sf6 & vcb brakers

1 Answers   Cap Gemini,

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how to calculate the mesh earth network resistance in such substation, is there any recommended resistance values with references , thanks!

0 Answers   SRES,

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what is arc flash and what are the hazards involved

0 Answers   Reliance,

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What will happen when we will connect lamp in between phase and earth. 

3 Answers  

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We have .ht motor which is 60Hz.we run on 50Hz.so that it's speed reduce but we had one prob.that motor winding temp increase up to 135 deg.we want reduce this temp.what to do?we arrange ext.cooling fan but not much effect.we want reduce this temp. Inhouse without affecting much.cost. also don't want reWINDING OF MOTOR?

3 Answers  

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CAN WE CALCULATE THE NEGATIVE SEQUENCE AND ZERO SEQUENCE REACTANCE OF A GENERATOR USING ONLY ITS RATED VOLTAGE, KW, PF AND SYNCHRONOUS REACTANCE??? IF YES, THEN HOW??

0 Answers  

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what meant by Locked Rotor Current ?

2 Answers  

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