Answer Posted / guest

mcb

what will happen if frequency is below 50 hz?

2029

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If you have an earth with pilecap then your resistance is really low. why and how?

2008

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What is control system?

1215

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how we calculate torque ? how we improve it ?where torque will either motor or generator ?

2068

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For some transformers we are using solid neutral earthing while some others we are using resistance earthing why ?

1913

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What will happen if we on 200kvr capacitor bank(11kv in bus)If there is low load on transformer (1.5 mva 33/11 kv)

1568

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What is difference between isolator and circuit breaker?

1134

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What is power relay?

1243

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how does it help for selection of a transformer.

1860

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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.

1929

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What is different type of Electrical curve and how it protects the equipment's while up-normal situation?

1820

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if we give 60 hz single phase supply to the transformer used in europe , than what will happen

1942

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i have applied for the post of RRB section engineering chennai board please send me previou papers and solved answer. my mail id jagarapusrinivas@gmail.com

1978

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How many types of oil using in H/T & L/T Oil Circuit Breakers. need Explenation ?

2915

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i karmveer bharti persuing b.tech . plz send me syllabus and name of reference books. for preparation of section eng.

2123

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