Which type of DG need Netral Earthing?

1 Answers   Hyundai,

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What is the function of electron gun used in crt?

0 Answers  

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what is strip power factor?

0 Answers   TATA,

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PLZ EXPLIN ABOUT CLASS PS CLASS CT .WHY THEY R DESINED AND FOR WHAT PURPOSE?WHY OTHER CT CANT BE USED AS PS CLASS CT? EXPLAIN IN SIMPLE LAUNGAGE IF POSSIBLE PLZ GIVE CIRCIT DIAGRAM?EMAIL-RAJ_SINGH_0376@SIFY.COM

0 Answers   ABB,

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Where we use 30mA , 100mA & 300mA RCCB ?

3 Answers   BEL,

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why capacitor offer reactance to alternating current?

1 Answers   Electrical,

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what is pilot wire? what is the use of pilot wires?

9 Answers  

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How one can say about a device (e.g: a light holder contains 20 or 30 L.E.Ds which glows when power supply is off, from which source they are getting the supply..... battery or capacitor) without removing and opening up its case ?

1 Answers   CMC,

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in alternator permanent magnet generator is also connected on the alternator shaft,then y that PMG voltage is very low as compared to alternator?

1 Answers  

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what is the diffrence between preventive maintinance corrective maintinance?

7 Answers   Siemens,

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what is differnce between oil transformer & dry type transformer ???????????

2 Answers  

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What is inverse definite minimum time lag relay? Where is it use?

0 Answers   TATA,

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