Answer / simon

The name plate detail HP/KW rating of a motor is in standard conditions.As result its always vary.

difference between analog pressure gauge & digital pressure gauge?

1 Answers  

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what will happen if dc machine are supplied by ac source??

2 Answers  

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is it possible to say motor horsepower number without seeing name plate(when name plate damaged)

0 Answers   Wipro,

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1. What is differential relay? How it operates? 2.How to calculate the Short Circuit Impedance in Transformer? 3.What is the alternate solution for testing of polarity by using polarity tester while its milli ammeter does not works? 4. While testing the 33KV Busbar by using Hipot kit, what should be the test voltage we have to apply? 5. What is the procedure/activities to be taken to inject the current more than 2000A by using 2000A Loading Transformer? 6. Explain how you can give the overload setting to any Motor Protection Relay for a HT motors with formula and example? 7. Why restricted earth fault protection is needed? Why can’t differential Protection is sufficient? 8. What should be the minimum and maximum ohmic value for earthing? 9. Why DC Currents are not used in transformer? 10. What is the Frequency while we step up the voltage from 220V to 11KV? Is it possible? Explain it?

0 Answers  

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On what basis do you decide the ONAN (Oil Natural air natural) or Dry type transformer for a project?

0 Answers   Semac,

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What are the material used for inductance coil?

0 Answers  

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What is best method of Calculating Short Circuit current in power system network.

1 Answers  

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What is the inside of ACB & VCB & SF6 breaker's pls tell me about this

2 Answers   Standard Chartered,

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Does human body can effect the electric shock when stand on Insulated material?

2 Answers  

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what is the MNA in case of d.c. machin? whaty is the importance of it? hoe it affect the brush position?

2 Answers   TATA,

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can a motor acts as a generator

8 Answers   Cummins,

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Pls tell me what is the exact current conducting capacity of copper and aluminium cables?how much capacity of cables need to 90kw induction motor&how?

1 Answers  

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