at work i have a genertor/alternater what is the easyest way to work out if it is dc or ac?

0 Answers  

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In CDG type IDMTL realy O/L , E/F, O/C which are used for out going feedrs,on R-phase o/c element, Y-phase , e/f elecment and on b -phase o/c element will be connected . Why the earth fault on center phase only, why not on other two phases?

2 Answers  

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* Signal transmission in sky wave propagation is due to ? a) Reforction of wave b) Reflection of wave c) Pierus through Inosphere d) None and Reason for this is????

2 Answers  

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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.

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what happenes if two voltage source connected in parallel will be connected to load.

3 Answers   Efftronics Systems,

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what is transformor oil gread

0 Answers   Idea,

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why vector group is ued

2 Answers  

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what is load cell? whrere its used ? how to measured?

2 Answers   Essar,

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what is LUX?

4 Answers   NTPC,

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Its possible to use 3core 2R of 240 sq.mm cable for 3phases & separely 50sq.mm 3core cable fully for Neutral for connection of PCC to MCC 3ph..4wire system?

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How should i design a 1ph & 3 ph transformer. Kindly let meknow all steps and formulaes related to design from scratch.

0 Answers  

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i need previous entrence exam papers of nhpc.

0 Answers  

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