anyone knows service engineer in chennai for EDM SPARKING MACHINE.CHMER PULSE CD 60 M.pL GIVE ANY CONTACT NOS

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which of the folowing has negative temperature coefficient of resistance? a. mercury b. copper c. lead d. carbon

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why capacitive load is not used in routine life????any reason is there ??????

1 Answers  

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Which transformer is suitable for 220/11 kV, 60 MVA, distribution , Y-Y or D-Y or Y-D, give comparison for the same.

3 Answers  

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A 30KW motor running at 1450 rpm draws 56A, how would you determine if this is correct or not?

3 Answers  

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What is the difference between earth resistance and earth electrode resistance?

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what is the difference between megger and earth resister ??

1 Answers   HMPL,

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please design a rectifier with batteries for below requirement and also explain how you calculate this solution, Load = 700Amp DC Backup time = 6 hour. please explain briefly ?????

1 Answers   GNFC,

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How to select the rating of the Transformer?

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sir, why alternator output is connected to delta side in to generating transformer? any reasion?

3 Answers   Kirloskar,

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What are the causes ,revers rotation of a kwh meter?

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how capacitor buield up the voltage

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