i need 24v dc from 230v ac supply how we can getit ? what are the devices &its rating requied for that ? plzz i need answer urgently .thank u

3 Answers  

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How many straight through joint is permissible in single core 33kv XLPE cable for a length of 985 mtr.

3 Answers   DMRC,

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what is meant by impulse voltage?

0 Answers   Masseera,

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Is single load(eg: three phase motor) having all the components like positive,negative,zero sequence components during fault condition?

0 Answers  

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what is main advantage if motor connected in star or delta?

3 Answers   Essar,

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A parallel flow heat exchanger will perform better than a counter flow heat exchanger. State if the statement is true or false.

0 Answers   Blue Star,

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what is data block in plc ? How the values of data block are written and read by hmi ? what is the difference between function and function block ?

0 Answers  

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How many different speeds can be obtained in cascade control of two induction motors?

1 Answers  

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What is meant by derating factor?

0 Answers  

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what is meant by skew width in machines?

0 Answers  

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how to find under ground cable fault ??? if our cable size is 95*4 then what will load capacity with far mull

2 Answers   Imdad,

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Hydro P.P. run @ 600 rpm,8pole, Nucler P.P @ 1500rpm 4 pole , ThermlP.P @ 3000 rpm 2 pole.Why this diffrence??? when we can generate electricity @ 600 rpm then Why we had incresed speed in NPP & TPP???

3 Answers  

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