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series wound units

It may seem that there is a brand loyalty on my part, just because of us talking about the virtues of the series wound unit. It was they just have the perfect blend of a motor matched to its tasks. And the stainless steel commponents were not as commonly used by their competitors in many of the comparatively priced units. Everything just came together to make a near ideal disposal. But not for every purpose. And for these units to still be operating today, since production ceased approximately 35 years ago, speaks volumes.

As mentioned for someone who has really heavy duty grinding needs, a large induction motor system may be somewhat slower, but capable of withstanding longer periods of grinding without the thermal overload protection engaging.

I have great loyalty to the Maytag induction units as well. Easy to replace parts and good just good performance all the way around. I wish I had replaced the pivot/hammer (impeller) in mine when it came off. They were overbuilt, just the the Maytag RR dishwashers.

It just depends on the application and the user what their preference is. Even ISE's today are pretty good units, especially compared to the alternatives. Yes they take their time on some things like bones, pits and cobs compared to the GE series wound units (and even the GE induction units) but they are well made and pretty good all around performers.

I just wish we had more competition in the disposer field in the U.S., From competition comes innovations.
 
Innovations?

But Barry I thought GE was all full of innovations, I mean, you have the commercial about my mom works for GE and makes trees dance, and GE welcomes ideas that look like a bleached cookie monster and now they have some goofy guy who talks backward with people upside down, and how can you say GE has no innovation?

I mean this sarcastic, by the way. What is it with these commercials its not like they want us to buy anything from them?
 
Whirlaway???

When was a series wound motor used in a Whirlaway? Or are you talking about the more modern Annaheim-built "Whirlaway's". These use a permanent magnet motor.

I've tested several of them. Not too good. I agree!!
 
Perhaps the toughest application I have seen for series motors is in core drills and magnetic drill presses.The motors for these tools were made by Milwaukee and Black&Decker.These motors were BEASTS!!!!They ran at 18-20A @120v.The machine had an ammeter on it to measure the motor current.I have repaired a few of these motors.They have 4 brushes in them-each brush 1" wide and communtator 2 in wide.The motor has a gearbox on it.They can take core drills to 2 ft diameter and metal drills to like 3" diameter.It was rewarding to repair one of these and test it!Watch it hog its way thru concrete!!!And 15A Bosch unversal motors on electric jackhammers.Those were cool,too!
 
Big Series Motors

Reminds me of the motors used in electrical cable pulling winches.

But the biggest beasts in the series motor department I ever worked with were locomotive traction motors. If you were standing on the steps of the locomotive, when only moving at a couple of miles an hour or less, you could hear the soft buzz of the brushes and commutator :)

Keith
 
Yes,those Milwaukee and B&D motors were also used for cable pullers.Loco motors-these could be connected in the traction circuit as either series or shunt wound motors-hence a compound wound motor.To start the train the motor is connected as series for max torque.Once up to speed the motor is shifted to shunt wind.Some older locos the shift was manual-kinda like in a car with manual transmission.Later as the technology evolved auto winding shift was used.Now its 3Ph AC induction motors on a VFD.Yes,have listned and watched lcos start a train-the brush whine is something!!
 

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