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Ratchet Motor
Ratchet Motor for GE gas turbines

Who is the manufacturer of The motor on ratchet pump for GE frame 3?

1 out of 1 members thought this post was helpful...

Kelly2019,

>Who is the manufacturer of The motor on ratchet pump for GE
>frame 3?

How old is the unit? Many older units included mayor nameplate data in the start-up report.

If the packager of the unit auxiliaries was GE, it’svery likely the motor was manufactured by GE. Especially if it’s more than ten years old.

Do you have the Parts List manual provided by the packager? If so, have you tried looking up the part number and contacting the packager or GE about obtaining a replacement motor?

Was the motor nameplate destroyed beyond recognition making it unreadable?

Can you take measurements of the motor, and the mounting feet, and contact other DC pump motor suppliers and/or manufacturers asking if they can supply a suitable pump that can be mated to the ratchet pump?

Most motors are available in various standard frame sizes and drive end configurations. If it is a DC motor, it was likely an explosion-proof motor, and the pump was simply bolted to the output shaft end of the motor. You would need to know the output shaft diameter and length and mounting bolt configuration.

If the unit and auxiliaries were packaged by GE then a document called the Device Summary was also provided in the manuals supplied with the equipment. That document will very often list the ratings for the various motors. I don’t recall exactly the device number for the DC hydraulic ratchet pump motor, but it’s either 72HR or 88HR (that’s important because the Device Summary is organized by device numbers).

So if the motor nameplate is unreadable (and GE motor nameplates usually had the important information stamped into the metal of the nameplate) a reputable electric motor supplier should be able to look at the motor and help determine the frame size and configuration that would be required to obtain a replacement. If you can give them the motor rating and show them the pump mounting configuration, tell them the voltage and that it should be explosion-proof rated, they should be able to recommend a replacement.

Also, any good electric motor repair shop should be able take a motor, even a burned out motor, and rebuild it.

Without the motor nameplate information you might not get an exact replacement (because you may not know if it was compound wound or had shading poles or the like) but you should be able to come very close and get something that is capable if not exactly the same.

This question really worries me, because it might be that the unit’s owner or the geographical area where the unit is located is prohibited or embargoed from obtaining spare parts and is using this “innocuous” World Wide Web forum to obtain information that could be used to obtain information or a motor. Stranger things have happened. But it’s just exceedingly odd that a small electric motor could be destroyed such that the nameplate was unreadable, and the sourcing department couldn't contact the unit packager for help in obtaining a replacement. Very, very odd, indeed.

If this is a legitimate question from a non-embargoed country it should be possible to work with one or more electric motor suppliers and/or electric motor repair shops to examine the failed motor and determine a suitable replacement or rebuild the motor. Just give or show them the motor and pump and tell them the pertinent information (explosion-proof; voltage rating) and service/application and that should be all that’s required.

I still have an uneasy feeling about the circumstances of this question. If this question is being asked by a motor supplier, well, that, too, would be odd. Again, most motor nameplates have critical information stamped into the nameplate, so the damage to the motor would have to be pretty severe to prevent reading the information.

There’s just something not right about this question.... Sorry, We’ll never know the whole story but I’ll wager it is unusual, to say the least!

Best of luck, Kelly2019. It would be nice to know if the information was helpful or not, but it would be nicer to know “the REST of the story.

Oh, and by the way, the Fortune at the bottom of this Control.com webpage is: “You are taking yourself far too seriously.” HAH!!! So very possibly apropos! You gotta love it!!!