what is post close & pre close of trip circuit supervision relay in circuit breaker control scheme?

2 Answers   ABB, NEK, Power,

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what is closing resistor in circuit breaker? why it used?

3 Answers  

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How many types of timer ?which timer are used star delta feeder

1 Answers   BMM Ispat,

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i have 1500 kva generator how much maximum load avilable of use

1 Answers   Dr Reddys,

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how do you measure earth leakages in 3phase wires?

2 Answers  

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When a square wave is applied to primary of a transformer then what will be output wave form of secondary ?

0 Answers  

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What is a diode?

0 Answers  

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please, Send me last technical test question paper in my email id..

0 Answers  

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In VSD (variable speed drive)I/P and O/P connections given wrongly what will happen?

5 Answers  

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How to differentiate 220 Kv & 132 Kv line transmission tower if there are no specifications given on towers?

3 Answers   Karam, Power Grid,

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hi i have a 400kva transformer i want to know the test i can use to check on it thx

1 Answers  

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WHEN TWO ALTERNATORS ARE OPERATING IN PARALLEL, EXPLAIN WHY IT IS OBJECTIONABLE TO OPERATE ONE AT A LEADING POWER FACTOR AND ONE AT THE Lagging power factor?

1 Answers  

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