Hunting in Generators

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Mawuko Deegbe Participant Join Date: Apr 2011 Posts: 2	Hunting in Generators 04/22/2011 9:20 AM
	what are some of the causes,effects and solutions to hunting in generators?
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Anonymous Poster #1	#1 Re: generators 04/22/2011 9:44 AM
	Sorry its a top secret.
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Doorman Guru Join Date: Apr 2009 Location: Yellowstone Valley, in Big Sky Country Posts: 7425 Good Answers: 295	#2 In reply to #1 Re: generators 04/22/2011 5:11 PM
	No, it is not top secret. The answers to your question are within the pages of your textbook. Or, do you have some answers you believe are not correct? __________________ Semper Ubi Sub Ubi
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RAMConsult Guru Join Date: May 2007 Location: NYC metropolitan area. Posts: 3230 Good Answers: 444	#3 Re: Hunting in Generators 04/22/2011 6:07 PM
	There's a lot on generator hunting in Google... http://www.google.com/#q=hunting+in+generators&bav=on.2,or.r_gc.r_pw.&fp=f26a11cf684416b&hl=en Do you have a specific scenario that is causing operational problems or is this an essay question? The more details you provide the more focused the answers will be since this is a question that covers machine theory, control system tuning, transient analysis and power system engineering, to name a few. You could start by answering the following: Isolated or system connected generation? Type and size of prime mover and generator? Type of governor/AVR- archaic, mechanical, electrical, modern? Type of load- intermittent, erratic, non-linear, random, etc.? Type of hunting- frequency (speed), voltage, load stability? It could be as simple as a governor and/or voltage regulator that needs tuning, or as complex as harmonics generated by a reciprocating engine creating undamped resonant oscillations in motors/loads. __________________ “Tell me and I forget. Teach me and I remember. Involve me and I learn.” Ben Franklin.
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ronron Power-User Join Date: Jun 2008 Location: beverly hills Posts: 116	#4 In reply to #3 Re: Hunting in Generators 04/22/2011 9:10 PM
	Hi, is you generator is new purchase, then go back you the supplier i guess they be able to help your problem. REgard
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RAGHURAMA Member Join Date: Apr 2011 Location: PUNE Posts: 9 Good Answers: 1	#5 Re: Hunting in Generators 04/23/2011 12:03 AM
	Hunting may be associated with 1. Winding Failure, 2. The AVR failure/ malfuctioning, 3. Problem with the tacho/ encoder feedback; if the generator is provided with one.
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thccontrols Commentator Join Date: May 2010 Location: UK Posts: 89 Good Answers: 2	#6 Re: Hunting in Generators 04/24/2011 6:23 AM
	Causes: dirty fuel (water is the most common problem), clogged fuel filters, dirty air filters, injectors not set up correctly (diesel engines), engine oil needs changing and engine flushed, AVR not reacting to voltage droop (not drop). There are more... but these are the simple one that you can id quickly and rectify. Effects.. all above will/can cause hunting. Solution: Maintanance
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Anonymous Poster (1); Doorman (1); RAGHURAMA (1); RAMConsult (1); ronron (1); thccontrols (1)

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