transformer - CR4 Discussion Thread

Home

Products & Services

Engineering News

Standards

Webinars

Engineering Forum

Login

CR4 Home | Electrical Engineering | Electrical Engineering

2 comments

Rate

Comments: Nested

Anonymous Poster	transformer 10/13/2007 5:40 AM
	In transformer during the measuring of no load loss watmtmeter gives the negative reading. what does it mean?
	Reply

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

Join CR4, The Engineer's Place for News and Discussion!

Samak Commentator Join Date: Sep 2007 Location: Alexandria, Egypt Posts: 86 Good Answers: 1	#1 Re: transformer 10/13/2007 6:38 PM
	A wattmeter needs a voltage signal and a current signal. For your problem, polarity of one of these signals is reversed, I guess. Good Luck... Samak
	Reply

adelawahab Participant Join Date: Oct 2007 Posts: 1	#2 Re: transformer 10/13/2007 11:46 PM
	Referring to residual magnetism transformer regenerate reverse power causing a negative power (regeneration power)and this power depending on the amount of residual magnetism Adel A.Wahab Cairo
	Reply

You might be interested in: Transformer Test Equipment, Transformer Repair Services, Transformer Winding Services

	Got Something to Say?
	Ask a Question Start a Discussion

	Search this Forum
	Electrical Engineering: Go

CR4 Sections

	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 (54 right now) Show Members