Motor life, depending on applied voltage?
Motor life, depending on applied voltage?
(OP)
Hi everyone, this is my first post.
My boss asked me today to someone find out the answer to this question.
If I have a motor rated at 120V, would it necessarily "hurt" the life span of the motor if it was run at say, 110V?
I do not have a specific motor in question, I'm just thinking that someone here has maybe had experience with using a motor at a voltage other than the one specified.
Anyone run into anything like this before? Any wisdom to shed on the subject? Any help is good help!
Thanks!
Ian
My boss asked me today to someone find out the answer to this question.
If I have a motor rated at 120V, would it necessarily "hurt" the life span of the motor if it was run at say, 110V?
I do not have a specific motor in question, I'm just thinking that someone here has maybe had experience with using a motor at a voltage other than the one specified.
Anyone run into anything like this before? Any wisdom to shed on the subject? Any help is good help!
Thanks!
Ian





RE: Motor life, depending on applied voltage?
Running a motor at a lower voltage generally results in more current draw by the motor to produce the same power output. Higher current creates more resistive losses in the motor and more heat.
Of course, too high a voltage creates its own problems, such saturation, etc.
RE: Motor life, depending on applied voltage?
Keith Cress
kcress - http://www.flaminsystems.com
RE: Motor life, depending on applied voltage?
RE: Motor life, depending on applied voltage?
If the motor is truly rated for 120V, there is of course not much chocolate left in that "fudge factor", so if the 110V drops another 3% (which utilities do on a regular basis) to below 107V, you are at serious risk of letting out the magic smoke.
"If I had eight hours to chop down a tree, I'd spend six sharpening my axe." -- Abraham Lincoln
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RE: Motor life, depending on applied voltage?
"If I had eight hours to chop down a tree, I'd spend six sharpening my axe." -- Abraham Lincoln
For the best use of Eng-Tips, please click here -> FAQ731-376: Eng-Tips.com Forum Policies
RE: Motor life, depending on applied voltage?