What are the main factors to be considered(In terms of energy conservation) while selecting a new air compressor?

1 Answers  

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WHY IS HV WINDING OF A TRANSFRMER SECTIONALIZED???

3 Answers  

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What is meant by pilot exciter and its working?

2 Answers  

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Why is copper a better conductor of electricity than aluminium?

5 Answers   AES,

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Please help me regarding my one concern. - During earth pit testing we noticed that the Clean earth pit and dirty earth pit showing continuity (Resistance value - 5ohm) . I want to know that if both earth pit have separate location and there is not internal looping between PIT then why such continuity is showing on it . Because of this issue the field side all earthing point showing short. In PLC panel we are providing two types of earthing cable which is coming from separate earth pit (Clean and Dirty earth pit) because of earth PIT showing short our PLC is not complying spec . please help regarding this issues.

0 Answers  

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out of all machines which have highest efficiency and why?

2 Answers  

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define differential current and restraining current in relays. how to calculate it by mathematically? post the formulaes.

4 Answers   Siemens, VPEC,

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why secondary of open delta pt (two element pt) centre tap is earth what happen when this earth is removed

1 Answers   Essar,

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what is the term of desruptive voltage

5 Answers   Bhel, Energy Infratech,

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which of the following motors is non-self starting?

3 Answers   SS Solutions,

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IS diode and blocking diode are the same?..what is meant by blocking diode

1 Answers  

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What is CCM in Electrical ? where can we use this material?

0 Answers  

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