Answer / gopal

In case of copper cable 2.5 sqmm is enough. For aluminum 4sqmm is better. Since full load current of 3.7kw motor is 6.4A.

what is the purpose of shading ring or shading coil in electrical equipments.

0 Answers   BARC,

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how to calculate cable size, olr rating, contactor rating and mccb rating,to below given details three phase motor 75 kw,415 v,.85 pf,50 hz?

5 Answers   Cabin Crew, Essar,

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what is the difference betweem star connected motor & delta connected motor?

13 Answers  

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how can calculated the rating of the 11 KV transformer?

6 Answers   NBCC,

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draw vector diagram and +ve,zero sequence diagram of symmetrical three phase fault.

0 Answers  

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How core saturation effects the secondary voltage (whats the theory) of a current transformer in service?

1 Answers  

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if u give d.c. supply to transformer primary then what happen.&why??????????????

4 Answers   DCS, DRDO, HCL,

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what is use of thermistor ?

2 Answers  

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how much load 15kva dg set can bear.with full explination and how to calculate?

2 Answers  

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what do you mean by PF correction. A motor is rated at 15 kw,415 volts, 0.7 pf and eff of 0.92. The powerfactor is improved to 0.98 by adding capacitors at the bus. calculate the current drawn by motor under full load condition before and after pf correction

5 Answers  

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Why high voltage lines (overhead ) are called high tension lines?

8 Answers  

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What is mean 2XWY

0 Answers   Wilo,

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