Answer Posted / m

u r Wrong.

What is George phenomena to start the synchronus machine?

4203

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A 400 V, 50 Hz, Δ connected synchronous generator has a field reactance of 0.1 Ω and armature resistance of 0.015 Ω. At full load, the machine supplies 1200 A at 0.8 pf lagging. Under full-load conditions, the friction and windage losses are 40 KW and the core losses are 30 KW. What is the machine’s overall efficiency? Ignore any field circuit losses.

1994

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why actual valve timing diagram is different than ideal valve timing digram of a 4 stroke engine?

5612

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if voltage bt phase & nutral is 38v in a panel board . whats the root cause.

2356

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How to calculate energy stored in an inductance?

1186

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Do any one know exacatly when the results for NHPC held on 8th march 09 for engineering trainees will be released ?. if so please post it, i'm eager to know it.

2202

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how to measure dc earth leakage current?

3244

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Explain what is clipper and clamper circuits?

1232

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What is the basis for selecting Vk/2 or Vk/4 for REF and Differential protection of Transformer and What is the significance of magnetising current

2450

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List of equipments required foe industrial repair lab.

1935

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what is accuracy ? in any meters , coils accuracy . how can u defined that ?

2489

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sir pls tell me . our ct specifications are 120/5 ,2 core , 0.2 and 5p10 class , 30va and 30va buden. insted of 30 va i want use 15 va. can i use?

1556

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what is meant by motor startup supervision & motor load jam protection ?

6076

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I am having dual speed motor of cromton greaves make of 3.7 KW -1400 rpm and 5 KW - 900 rpm. Please let me know groups and winding connction for rewinding purpose.

1992

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in 132kv substation CRT means

2670

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