HT motor

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ANKUR Member Join Date: Jul 2007 Posts: 7	HT motor 09/06/2009 1:46 PM
	Hom much distance shouled be mainted between two terminal of 6.6KV HT motor for each phase?
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soebfatehi Power-User Join Date: Jun 2009 Posts: 223 Good Answers: 15	#2 Re: HT motor 09/06/2009 8:37 PM
	20 mm clearance for a 6.6 kv termination? think again please . . . .
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Khor Commentator Join Date: Sep 2009 Posts: 59 Good Answers: 3	#3 Re: HT motor 09/06/2009 9:13 PM
	1.Phase to phase clearance or distance apart is 120mm for 11kv,it is alright to follow this dimension for 6.6kv. 2.Phase to ground is 110mm.( Phase-ground voltage is 3.81kv for 3-phase 4-wire,neutral solidly grounded system) I assume the termination is bare and in air in a cable box.If you have HV heat shrinkable termination covers for each phase,then you can have lesser clearances depending on the workmanship of the termination and the rating of the HV insulation material used. Regards, Khor
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PWSlack Guru Join Date: Jan 2007 Location: In the bothy, 7 chains down the line from Dodman's Lane level crossing, in the nation formerly known as Great Britain. Kettle's on. Posts: 32175 Good Answers: 839	#4 Re: HT motor 09/07/2009 1:29 PM
	That recommended by the motor's original manufacturer, if it has an outstanding warranty period. That recommended by the motor's orignal manufacturer during the warranty period and beyond, if popularity with one's fire and injury indemnity insurance company is to be sustained. __________________ "Did you get my e-mail?" - "The biggest problem in communication is the illusion that it has taken place" - George Bernard Shaw, 1856
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nesubra Guru Join Date: Nov 2006 Posts: 729 Good Answers: 2	#5 Re: HT motor 09/09/2009 6:21 AM
	Normally HT motors come with Phase Segregated terminal box and hence this is not applicable to that. __________________ To avoid crticism do nothing,say nothing,be nothing
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Anonymous Poster (1); Khor (1); nesubra (1); PWSlack (1); soebfatehi (1)

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