Answer / riyaaz

3 1/2 core 120 sq.mm aluminium cable

can we use 3 phase UPS for Motors and Other Machines

4 Answers   ACC,

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In all the generators, the excitation supply is DC. What is the significance of DC excitation? What will happen if AC supply is given as excitation supply?

8 Answers  

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is the power of a single phase induction motor(Fans) is constant under varying speeds?

4 Answers  

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Is it weather conditions make any problems to the electrical equipments and if yes means is it any precautions needed?

1 Answers   Hexaware,

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why use generator Earthing/Graunding.

4 Answers  

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if we have a power factor 0.99 and we add a capacitive bank with it then what happen?

4 Answers   University,

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any calculation method for decide cable size for current?

1 Answers  

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why transmission lines traveled in high voltage?

5 Answers   TATA,

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I am going to appear for the RRB Chennai Section Engineer online exam. Please send me the question papers from 2001 to date to my mail id:upendrakrishna20@gmail.com,plz send me ,or send any other rrb papers plzzzzzzzzzzzzzzzzzz

0 Answers   RRB,

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what is relay type VDG,CDG,VTT ect?

1 Answers   Bhel,

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suppose i have two single and three phase induction motor,thier have not any rating on its panel,anybody can tell me which motor is single or three phase?

1 Answers   Doon,

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while checking the flourscent tube elctrodes some glow is cominag. this type of glow tube working or not working

1 Answers  

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