From: John Woodgate
Subject: Re: DC Injection Brake for Induction Motors???
Date: Tue, 1 Oct 2002 20:43:07 +0100
Organization: JMWA Electronics Consultancy
Reply-To: John Woodgate
NNTP-Posting-Date: Wed, 2 Oct 2002 02:42:36 +0000 (UTC)
X-Newsreader: Turnpike (32) Version 4.01 <5Z8C9wtxbnpWyFnyfFzqmVF739>
I read in sci.electronics.design that Mike Poulton
wrote (in ) about 'DC Injection Brake for Induction Motors???', on Tue, 1
>On 01 Oct 2002, John Woodgate said:
>> I read in sci.electronics.design that Tony Williams
>> wrote (in
>> <firstname.lastname@example.org. uk>) about 'DC Injection Brake for
>> Induction Motors???', on Tue, 1 Oct 2002:
>>>Note that (at every braking) all the kinetic energy
>>> is dissipated by the motor, presumably in the rotor.
>> ONLY if the stator is VERY firmly screwed to something massive. YOU
>> HAVE BEN WARNED!
>Presumably, you wouldn't be generating much more torque than the motor
>would normally produce, just in the opposite direction. Right? --
I don't think so. With at least some braking schemes you can stop the
load in milliseconds. That's not just torque, either, well, yes it is,
Oh, I give UP!
Regards, John Woodgate, OOO - Own Opinions Only. http://www.jmwa.demon.co.uk
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