Different between megger and contact resistance meter

3 Answers  

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how does the switching of capacitors in a capacitor bank take place when we use them at the load side to reduce the power factor?

2 Answers  

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What is meant by positive and negative feedback?

0 Answers  

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If 11 KV breaker on the primary side of a 11 KV/3.3 KV 12.5 MVA transformer can be installed at a distance of 1000 mtrs through a 11 KV cable. If no what are the probable reasons.

1 Answers  

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Which type of control system is expensive — closed loop or open loop?

1 Answers   GE,

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how to determine motor size for a fan application?

0 Answers   EDC,

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For high voltage and low current Circuit Breaker preferred is vacuum circuit breaker.why?

1 Answers  

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An engineer measures the direct current resistance of a transformer using ohm meter. When he/she takes out one of the leads of the meter, spark comes.. Why ?? This effect is known as...

1 Answers   Saint Gobain,

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What are the common sources of energy?

0 Answers  

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Which addressing mode contains the address for data as a part of the instruction in 8085.

3 Answers   Ecil,

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1.what type of wave is produced from i.online ups ii.offline ups iii.inverter.why don't we use inverter instant of offline ups for computer,what's the reason?

2 Answers  

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in a dc motor we supply current only to the armature conductors,from where is the field winding gets excited then??

3 Answers   RRB, Siemens,

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