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purv
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Join Date: Aug 2011
Posts: 3

Induction motor

10/04/2011 5:59 PM

Hi all, there is a problem related to induction motor not taking load, as load fed it go stop, what could be the solution?

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wareagle
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United States - Member - New Member

Join Date: Jun 2008
Location: Alabama
Posts: 1604
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#1

Re: Induction motor

10/04/2011 7:09 PM

You need a lot more information. Motor HP, voltage, load etc.
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msamad
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Join Date: Feb 2009
Location: Houston, USA
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#2

Re: Induction motor

10/04/2011 8:42 PM

The most probable case is the motor is unable to produce the required torque to run the load. You need a motor of larger capacity for the load.

- MS

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JRaef
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United States - Member - New Member Engineering Fields - Power Engineering - New Member

Join Date: Sep 2006
Location: California, USA, where the Godless live next door to God.
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Good Answers: 804
#3

Re: Induction motor

10/04/2011 8:51 PM

Or you may have the motor connected incorrectly, i.e. you have connected it in the pattern for a higher voltage than you have. Or you have a bad motor, or you have a blown fuse somewhere, or you have a bad controllers etc. etc. etc.

As was said, you need to provide more details if you want meaningful help.

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lyn
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Join Date: Oct 2008
Posts: 42355
Good Answers: 1693
#4

Re: Induction motor

10/04/2011 11:46 PM

And you should also tell us if this is a real situation, or a project for your engineering class.

Is there more to the problem you haven't shared with us?
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soebfatehi
Power-User

Join Date: Jun 2009
Posts: 223
Good Answers: 15
#5

Re: Induction motor

10/05/2011 12:08 AM

(1) read carefully the name plate of the motor. note down the current, voltage, frequency and kW?

(2) observe the terminals - are there 6 or 3?

(3) check from your purchase document or manual if it is a 3PH squirrel cage induction motor?

(4) check all the mechanical connections to the shaft and ensure that there is no clutch or brake that is stuck or malfunctioning?

(5) measure the no load current in each line using a tong tester when the motor is running without load (presume from your question that it can be run that way)?

(6) read this . . . http://www05.abb.com/global/scot/scot259.nsf/veritydisplay/bf88560fb1b0335cc2256fc6003e4e05/$file/motor%20guide%20gb%2002_2005.pdf

(7) and this too . . . http://www.advancedfluidsystems.com/files/resources/Electric_Motor_Troubleshooting_(Polyphase).pdf

like suggested by my learned friends . . . tell us more about your motor and application . . . many here will guide you well . . .
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pnaban
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Join Date: Jun 2010
Location: srilanka
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#6

Re: Induction motor

10/05/2011 5:44 AM

Is the selection of motor,CB and OL ok?. Is it driven by belt drive,did you check the voltage/current/speed etc at no load and on load?.

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JRaef (1); lyn (1); msamad (1); pnaban (1); soebfatehi (1); wareagle (1)

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