Answer / gopal

i=v/R and R=rho.L/A . by analysing these fourmulas we find the size . here i is electric current in the conductor to flow or load current to flow . v is the voltage across the conductor , R is the resistance of the conductor . L is the length of the conductor ,rho is a constant of a material called specific resistance here the the material is the material of the conductor , A is the area of cross section of the conductor .

If i have 200 test cases and we have to execute but we don't have time to execute all testcases.within 1 hour we have to execute that testcases and prepare the test report.so how i have to resolve this problem? is there is any technique in the testing.

3 Answers   Stag Computers,

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If i have two 3000 kW motors and the whole facility requires a 10 MVA transformer. What would be better installing two 5 MVA transformers(one for 1 motor ) or just a single 10 MVA transformer for both of them. Give reasons for your answer.

4 Answers  

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In Air circuit breaker LSIG protection unit is used. Without fault in cables (2 runs 3Cx150Sq.mm Copper, 1Kv grade, XPLE armored cable IR value is more than 550Mohm @ 500V Megger) and load section Long time Overcurrent protection is triggers and trips the unit. We changed LSIG protection with new factory tested unit. Even then fault is persisting. Please suggest the possible causes

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why autotransformers are not safe for supplying low voltage from a high voltage source?

5 Answers  

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which supply is used in traction system

3 Answers  

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in ct secondary one terminal is connected to earth why?

1 Answers  

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What is the difference between PLC and Embeded system

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how many stairs have you climbed while you were coming

0 Answers   Bhel, SSB,

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how a single machine can act as both motor and generator? and give explanation interms of connections?

1 Answers  

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what's the reson that,Load is not same on VFD I/P and O/P Side.whenever DOL condition load is same I/P and O/P side.

1 Answers  

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What is the difference between grid and off- grid system??

0 Answers   GVK,

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power formula

1 Answers  

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