Starter Recommended for Min to Max KW

4 comments

Rate

Anonymous Poster #1	Starter Recommended for Min to Max KW 05/12/2015 11:53 AM
	Dear Friends, Iam looking for IEC or NEC article reference for kWs required ranges Min to Max (KW) to use DOL , Star/Delta , Softsarter.Kindly please if any one have any article reference please support. thanks RG
	Reply

Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.

Check out these comments that don't yet have enough votes to be "official" good answers and, if you agree with them, vote them!

SolarEagle Guru Join Date: Mar 2007 Location: by the beach in Florida Posts: 33392 Good Answers: 1817	#1 Re: Starter Recommended for Min to Max kw 05/12/2015 2:25 PM
	Here is some info... "A direct on line starter can be used if the high inrush current of the motor does not cause excessive voltage drop in the supply circuit. The maximum size of a motor allowed on a direct on line starter may be limited by the supply utility for this reason. For example, a utility may require rural customers to use reduced-voltage starters for motors larger than 10 kW." https://electricalnotes.wordpress.com/2012/03/13/direct-on-line-starter/ https://www.motorsystems.org/iec-standards "Traditionally in many supply regions, there has been a requirement to fit a reduced voltage starter on all motors greater than 5HP (4KW). The Star/Delta (or Wye/Delta) starter is one of the lowest cost electromechanical reduced voltage starters that can be applied." https://electricalnotes.wordpress.com/2012/03/16/star-delta-starter/ http://www2.schneider-electric.com/resources/sites/SCHNEIDER_ELECTRIC/content/live/FAQS/171000/FA171495/en_US/ats22_user_manual_en_bbv51330_02.pdf __________________ All living things seek to control their own destiny....this is the purpose of life
	Reply Score 1 for Good Answer

Wal Guru Join Date: Jun 2011 Location: Phnom Penh Posts: 4019 Good Answers: 102	#4 In reply to #1 Re: Starter Recommended for Min to Max kw 05/13/2015 7:20 AM
	DOL if you have the grunt available to do it and conductors appropriately sized. Cheapest and easiest. If I need star delta (a type of soft starter as you say) these days I don't. I use a VFD. Only time start delta is used is if it is extant and needs fixing and is really required. __________________ Difficulty is not an obstacle it is merely an attribute.
	Reply

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	#2 Re: Starter Recommended for Min to Max kw 05/12/2015 3:55 PM
	It depends upon the supply voltage and the resilience of the incoming supply. British Standard 7671 gives full protocols. __________________ "Did you get my e-mail?" - "The biggest problem in communication is the illusion that it has taken place" - George Bernard Shaw, 1856
	Reply

Anonymous Poster #2	#3 Re: Starter Recommended for Min to Max kw 05/12/2015 5:51 PM
	Surely you realise that Min is zero?
	Reply Score 1 for Good Answer

Check out these comments that don't yet have enough votes to be "official" good answers and, if you agree with them, vote them!

Copy to Clipboard

Anonymous Poster (1); PWSlack (1); SolarEagle (1); Wal (1)

	Got Something to Say?
	Ask a Question Start a Discussion

	Aerospace
	BioMech & BioMed
	Chemical & Material Science
	Civil Engineering
	Communications & Electronics
	Education and Engineering Careers
	Electrical Engineering
	General Discussion
	Instrumentation
	Manufacturing
	Mechanical Engineering
	New Technologies & Research
	Software & Programming
	Sustainable Engineering
	Transportation

	Site Directories
	Forum Directory Blog Directory User Group Directory RSS Feeds CR4 Rules of Conduct CR4 FAQ Site Glossary Who's Online (80 right now) Show Members