when a hand crancked meggar is used to check most three phase induction motors, how many tests r rquired? Why?

1 Answers  

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A motor works on 30kw.it is working on 440volts.How much amper will be Required?

7 Answers  

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BRIEFELY EXPLAIN MEGGAR PRINCIPLE

2 Answers  

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what is the burden?accuracy?Knee point voltage? what is the Alternator of PGM?

0 Answers   L&T,

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what is the minimum recommended leakage current of an earthed cable connected to the body or skid of an alternator

0 Answers  

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Why transformer neutral earthing? What is advantages?

3 Answers  

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what is the rating of boiler?

4 Answers  

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When we use air circuit breaker, it has O/L protection ,time delay SC protection, Instataneous SC protection & ground fault protection. They all have some setting range. But what is the suitable/allowable setting for the above protection which will be safe for the equipment? For example-O/L protection setting have a range of (0.4,0.45,0.5,0.55,0.6,0.65,0.7,0.8,0.9,1.0)xIn Time delay SC protection have a range of (1.25,1.5,2,3,4,6,8,10,12)xIn Time delay setting is 0.02,0.1,0.2,0.3,0.4 Instataneous setting is fixed to 20xIn Gound fault setting is given 100A,300A,600A,900A,1200A This setting are for 2500A ACB. So what will be the basic allowable setting for the above protection? is there any formulae to calculate this<

0 Answers   Lupin,

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What is the basis for framing the rules of block diagram reduction technique?

0 Answers  

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The SFC of an engine is 0.25 kg/kW hr. when the fuel used has a calorific value of 36000 kJ/kg. the thermal efficiency of the engine is

0 Answers   Caterpillar,

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how to mention 5mw generator in kva ? gen voltage is 11kv

6 Answers  

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SSC JE ELECT.

1 Answers   CPWD, SSC,

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