Can we put 3 layers of cable tray while installing tray

0 Answers   NTPC, Siemens,

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What size cable (based on voltage drop) is required to supply a 40 A three phase boiler if the wiring system is 75V single insulated cables installed in non-metallic rigid conduit 56m from the main switchboard? Voltage drop in the consumer's mains is 8V.

0 Answers  

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How the train speed control?

1 Answers   Bhel,

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How to calibrate or test an LT Air Circuit breaker 440 volts, 35 KA, 800 Amps ?

0 Answers   ABB,

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What are the applications of autotransformers?

0 Answers  

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What you have to see in transformer after week, month?

0 Answers  

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In explosive and polluted environments which type of motors do we use?

3 Answers   NTPC,

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Hello Guys !! i want to rrb section engineer electrical(signal) previous model papers? any body help me?

0 Answers  

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how calculate the electrical load for industry and office

2 Answers  

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Why underground cables are used to connect transformers?In addition how are they again connected to lines after step up or step down?

1 Answers  

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why neutral grounding transformer is used for generator and why it is not used for transformers?

1 Answers   UPCL,

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what is stay bow?

2 Answers  

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