what's the meaning of the negative going half cycle in the circuit containing a bulb and a switch in series with a input ac source. i mean what happens in the -ve cycle. the dir. of current changes or any other thing. if dir. changes then why we use fuse in only phase wire.

2 Answers  

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What is advantages of ungrounded neutral?

2 Answers  

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what will happen if ac power supply is given to the rotor of an alternator

1 Answers   Goldman Sachs,

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what is static excitation and dynamic excitation of synchronous generator,scr excitation is a brush or brushless excitation?

6 Answers  

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Can we parallel two grid with different incoming voltage. Ex.let say one grid is 132kv and another is 220kv.

2 Answers  

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Explain RYB?

21 Answers  

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what is electricial and mechnical interlock.

9 Answers   Control Dynamics, EFS, HP,

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why DG,Transformer,UPS capacity will be tell in KVA but not in KW?

4 Answers   Godrej,

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Sir We have a REF relay connected to 10MVA(Y-Y) Transformer.on External earth fault REF relay trips along with earth fault relay.The REF relay has no complant as we tested relay.Why is it happening?

3 Answers   KSEB,

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how the BDV of the oil will be checked using moterised controled HV SET?

1 Answers  

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How addressable fire systems work? Pl. send details with architect.(Loop), also send details regarding Gas system. Pl. help me.Thanks

1 Answers   Siemens,

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Write the programming software name for LG, SIEMENS,Messung,AB

0 Answers  

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