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530kW motor checks? !!

Former Community Member
Former Community Member
Hello to all, and I do hope that people can advise me on this?


Firstly: what checks can I best do for a possible purchase of a single ABB - AMB 630 LC16 ABA C 530kW pump unit, which is unable to be properly tested (powered up) as the plant it was operating in has been decommissioned, and is currently being scrapped.


The unit appears to be mostly self contained, with a separate 'powercap' capacitor cabinet.

There are 8 in total, in various conditions and all look like this:
200fe3153df9ce950ab8d3220e14538c-huge-1.jpg
b9f52bfa5dd0afd26e92e2d1d4f97d2c-huge-2.jpg
9b08e6def31b626893d8d9e9b05b139f-huge-3.jpg
acf1cd9e473f756f328529e5cb2fc6d0-huge-4.jpg


Secondly: No switching gear is 'included', however I could always ask the company (who's pulling the site apart) if it's possible to obtain the original starter systems maybe???

But would this be a good idea, considering again it's in an unknown condition.


From the 8 available, I've selected 2 that appear to be the most suitable for hopefully reusing again (not bashed about, leaking oil etc) and thus generally look ok, so possibly from that can choose the final one.... but it would be great to know how best to maybe pick the best from any testing that could be done where they stand now, without any power.


Obviously with big industrial machine as this, it's not your average consumer second-hand electrical goods....

....that one just plugs in, and then hopes it works when power is applied!



(Thanks in advance to any replies)
Parents
  • 0
    Also if possible check for creatures that may have entered the units and made a home there. When transporting the units try not to cause long duration vibration that could damage items like bearings.


    The bearing oil slick could be due to over lubrication or a failed oil seal. An auto oiler may be set wrongly or maintenance personnel may have manually re-greased too much too often.


    An oil leak or grease leak does not immediately indicate a failed bearing. In fact the grease may have escaped and carried away dirt and metal shavings etc. which is good. New grease will then be added to prolong bearing life. If the bearing has run hot it may have been worn or damaged. The grease may also indicate bearing misalignment, but that is doubtful. Grease entering motor windings or other electrical parts is very bad.


    Z.




Reply
  • 0
    Also if possible check for creatures that may have entered the units and made a home there. When transporting the units try not to cause long duration vibration that could damage items like bearings.


    The bearing oil slick could be due to over lubrication or a failed oil seal. An auto oiler may be set wrongly or maintenance personnel may have manually re-greased too much too often.


    An oil leak or grease leak does not immediately indicate a failed bearing. In fact the grease may have escaped and carried away dirt and metal shavings etc. which is good. New grease will then be added to prolong bearing life. If the bearing has run hot it may have been worn or damaged. The grease may also indicate bearing misalignment, but that is doubtful. Grease entering motor windings or other electrical parts is very bad.


    Z.




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