What Will be the Effect if Lead Changed at Alternator?

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stanessuresh Member Join Date: Jun 2012 Posts: 6	What Will be the Effect if Lead Changed at Alternator? 07/06/2012 8:28 AM
	If we interchange the + ve&-ve lead from the rotating rectifier diode to main field coil of the alternator then what will be the result? If we interchange the+ ve&-ve lead from the AVR output to field coil of the exciter then what will be the result? If we interchange the pmg stator lead to AVR input (p2,p3,p4 terminal) then what will be the result?
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Ace Boeringa Guru Join Date: Mar 2006 Location: Washington USA Posts: 566 Good Answers: 53	#1 Re: what will be the effect if lead changed at alternator? 07/06/2012 8:57 AM
	Assuming that the alternator is connected to a voltage regulator/battery system, and it is being driven. The first action wil result in releasing the smoke that was intended to be trapped by the insulation. All subsequent actions will result in no discernable change. Have fun!
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Anonymous Poster #1	#2 Re: What Will be the Effect if Lead Changed at Alternator? 07/06/2012 11:41 AM
	If you survive the test, let us know how it worked out!
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Bibo92004 Associate Join Date: Jul 2011 Posts: 29 Good Answers: 2	#3 Re: What Will be the Effect if Lead Changed at Alternator? 07/06/2012 12:34 PM
	Nothing will happen in case of changing the direction of the whole wheeling diode rectifier or the +ve & -ve of the main field coil, but it will be a really problem if you changed the direction of one diode.. On the other hand, for changing the +ve & -ve of the AVR it will be a problem if field flashing is on. For PMG a backup supply from a battery bank might also be there that can cause a problem if working together. Hope I answered your question.
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lyn Guru Join Date: Oct 2008 Posts: 42355 Good Answers: 1693	#4 Re: What Will be the Effect if Lead Changed at Alternator? 07/06/2012 12:50 PM
	Do you still, " need a complete circuit diagram of a 400 kw Stamford alternator including stamford mx 341model avr,exciter,pmg ,quadrature droop ct,with burden resistor .(circuit diagram of inside connections for alternator terminal box)"?
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Tobugrynbak Guru Join Date: Oct 2008 Location: Deepest Darkest Rutherford Oz Posts: 951 Good Answers: 145	#5 Re: What Will be the Effect if Lead Changed at Alternator? 07/06/2012 9:44 PM
	Bad if not terminal for the alternator/regulator. If you don't have the relevant knowledge to do a thing, find someone who does and let them do it. __________________ There are two reasons for a man to do a thing, One that sounds good, and the real one...
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Wal Guru Join Date: Jun 2011 Location: Phnom Penh Posts: 4019 Good Answers: 102	#6 Re: What Will be the Effect if Lead Changed at Alternator? 07/07/2012 9:08 AM
	This sounds like a hypothetical homework question to me. A cursory glance at the alternator's wiring diagram and requisite knowledge will give you the answer. If this isn't a homework question then please tell us why you are contemplating these changes. __________________ Difficulty is not an obstacle it is merely an attribute.
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Ace Boeringa (1); Anonymous Poster (1); Bibo92004 (1); lyn (1); Tobugrynbak (1); Wal (1)

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