Answer / roy

BELOW 1.0 OHMS

Answer / aman arora

THE RESISTANCE OF EARTHING SHOULD BE 0 OHM BUT IT SHOULD NOT BE MORE THEN 2 OHMS IN TRANSFORMER CASE

Answer / mahesh

infinity

define reactive power?

3 Answers   Alstom, TATA, TCS,

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Why Transistors are not used as switching devices?

15 Answers  

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How can i learn to programme every VFD. Or is there any typical study to understand VFD programming.

1 Answers   Volkswagen,

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Abb 11kv how it is closing automatically when the cb is racking in and rack out when it reaching test position

1 Answers  

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all 3 current transformers (C.T) are burnt in a L.T Panel - what are the possible reasons

5 Answers  

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1. What is maximum permissible distance between smoke detectors ? 2. How do we decide number of smoke detectors required in a large office, warehouse, hall etc ? 3. What should be maximum height of smoke detectors ? 4. Where do we use heat detector, optical smoke detector, temperature sensitive detector ?

0 Answers  

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Which types of following motors are most efficient?

0 Answers  

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in transformers for ex. 100mva and 400kv the secondary current is about 420 amps but for selection of bushing the capacity of selected bushing is 2000A why there is such big difference ?

2 Answers   ABB,

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Distinguish between Earth & Neutral?

5 Answers   Essar,

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WHY WE CAN GENERATE POWER IN 3PHASE MODE ONLY NOT IN 4 OR 5 PHASE?

8 Answers  

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1]how the voltages and frequency are achieved on ships. 2]how does the line and phase voltages are related on ships.

3 Answers  

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What is the formula to calculate the rating of a three phase miniature circuit breaker

0 Answers  

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