Previous in Forum: STARTER   Next in Forum: Controlled Saturable Reactors in Power Supplies
Close

Comments Format:






Change Mode
Close

Subscribe to Discussion:

CR4 allows you to "subscribe" to a discussion
so that you can be notified of new comments to
the discussion via email.

Close

Rating Vote:







Add Vote
3 comments
Rate Comments: Nested
Anonymous Poster

Motor rating

01/12/2009 2:52 PM

Hi All,

In one of the induction motor I found the rating as '60LBFT'.

Can any body tell me what is it & what is the equivalent in HP or KW
Reply
Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.
GearHead+
Active Contributor

Join Date: Mar 2008
Posts: 10
#1

Re: Motor rating

01/12/2009 3:37 PM

That means 60 foot pounds of torque, unstated to be per minute, but to horsepower... what kind... now that is horsepower of a different color... http://auto.howstuffworks.com/question622.htm http://www.unitconversion.org/energy/foot-pounds-to-horsepower-hours-conversion.html http://www.convertworld.com/en/power/Foot-pounds+per+minute.html http://www.markhorrell.com/tools/power.asp http://www.engnetglobal.com/tips/convert.asp?catid=12
Reply
not so smart
Guru

Join Date: Dec 2008
Location: nj,usa
Posts: 1253
Good Answers: 33
#2

Re: Motor rating

01/12/2009 3:44 PM
foot pounds/sec ÷550.0 =hp
foot pounds/min ÷33000.0 =hp
foot pounds/sec ÷0.737562 =watts
foot pounds/min ÷44.25 =watts

GOOGLE IT!

LBFT is foot pounds.

__________________
 CARPE CRUSTULORUM!
Reply
Codemaster
Guru

Join Date: Jul 2005
Location: Stoke-on-Trent, UK
Posts: 4496
Good Answers: 137
#3

Re: Motor rating

01/13/2009 3:55 AM

Unusual to only state torque, but if this is full-load torque, you can get rated power in ft.lb/sec from torque x full-load speed in radians/sec. Then HP = ft.lb/sec/550.

If full-load speed = 1450 rpm (4-pole motor), power comes to 16.6 HP.

Cheers.........Codey

__________________
 Give masochists a fair crack of the whip
Reply
Reply to Forum Thread
Have a Different Question?
3 comments
Copy to Clipboard

Users who posted comments:

Codemaster (1); GearHead+ (1); not so smart (1)

Previous in Forum: STARTER   Next in Forum: Controlled Saturable Reactors in Power Supplies

Advertisement

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 (111 right now)
Show Members
Advertisement