530kW motor checks? !!

Thank you so much for your reply.


I guess then this capacitor cabinet... is certainly one to avoid!


It's very sad that none of the equipment (that must have originally cost a fortune!) was properly decommissioned and thus carefully removed to a safe place after all necessary safety checks and/or evaluation of possible reuse were made.


Unfortunately though I see this a lot.

What's only regarded as 'scrap' equipment, BUT actually much could have easily been reused again.


I'm hoping that one of these huge motor pumps can be the refill source for a gravity fed double lagoon generation system which (as not tidal) has to have the water then pumped back into the upper pool, during off-peak periods.

Previously done with diesel pumps, but for a pure 'green' energy .....making the entire process electrically run, seems best.


An 11kv 3 phase supply will be available when installed (as the system will thus feed directly into that) and require that line to operate the motor for re-pumping.

I had originally intended to be using many smaller capacity pumps (4 possibly) as the faster the water can be returned to the upper pool during off-peak the better, however this huge pump can shift 2694 L/S so would certainly do the job.... alone!

Imagine running 4 of these.

Certainly would get the water back up into the upper pool, asap.


It was suggested to me that (maybe) the motor could be 'adapted' somehow into being a generator unit too whereby the water is (with a modified pump) made to turn... and then it simply powers up as a motor again to run the water back up.


This certainly saves having a dual separate layout of a motorpump for water return, and a main generator unit for actual energy supply into the grid, but maybe not possible as it radically alters the original motor and pump's design.

Most new existing gravity generation systems however do now use this method ...but possibly a very expensive option.

The reuse of a 'scrap' pumpunit thus I'd thought to be much cheaper.


One of the steam turbine powered AEI 500MW generator stator and rotor is actually still there.

Rather too large to be of any real use for my small generation project!



The general disarray surrounding the rotor doesn't look very good and so who knows how carefully that was dismantled.

It would require a large water wheel, or turbine certainly to run it at 500MW!!


Anyway, bearings on one motorpump offered seem to be possibly u/s (judging by the general oil slick that has appeared from the motorframe), and so it's possibly failed somehow.


I'm trying to determine IF any original starting gear is available or has already been scrapped.

Indeed if any motorpump unit doesn't find a buyer - is it the intention then to be just scrapped or could 'a deal' be done whereby those parts can still be salvaged (as these motor pump units are not made anymore) and it seems pointless them just heaping up a pile of scrap when many parts even if the whole unit was not suitable to be run, could provide a valuable source of spare parts.

While many won't be thinking of reusing anything like these large pumps, hopefully some can be made to run again :)


I assume the equipment was already fully disconnected from the main busline but the cable channel tracks nearby seem totally undisturbed so I think the actual motor units are still 'connected up' and certainly those caps in the cabinets could even retain a mighty charge.

Is that (I wonder) something the company is actually aware of?


While most demolition isn't now done by a human and hammer, pulling out that capacitor cabinet with a demolition grab or shear could be a timebomb just waiting to go off.

Even someone just cutting the cables in the track conduits from that cap cabinet could be lethal.

I will warn them just incase nobody has risk assessed the possible dangers there.


Certainly a very good point that you bring up! Thanks for that.

(You might have just prevented a nasty accident!)


It reminds me of a news story where a scrap merchant hoisted up, then was oxy acetylene cutting directly into a 11kv transformer (filled with oil of course) and he didn't seem to realise the danger ....until it was too late.


Judging by the capacitor cabinet which I began with - already damaged, that doesn't bode well for onsite safety procedures....

Thank you so much for your reply.


I guess then this capacitor cabinet... is certainly one to avoid!


It's very sad that none of the equipment (that must have originally cost a fortune!) was properly decommissioned and thus carefully removed to a safe place after all necessary safety checks and/or evaluation of possible reuse were made.


Unfortunately though I see this a lot.

What's only regarded as 'scrap' equipment, BUT actually much could have easily been reused again.


I'm hoping that one of these huge motor pumps can be the refill source for a gravity fed double lagoon generation system which (as not tidal) has to have the water then pumped back into the upper pool, during off-peak periods.

Previously done with diesel pumps, but for a pure 'green' energy .....making the entire process electrically run, seems best.


An 11kv 3 phase supply will be available when installed (as the system will thus feed directly into that) and require that line to operate the motor for re-pumping.

I had originally intended to be using many smaller capacity pumps (4 possibly) as the faster the water can be returned to the upper pool during off-peak the better, however this huge pump can shift 2694 L/S so would certainly do the job.... alone!

Imagine running 4 of these.

Certainly would get the water back up into the upper pool, asap.


It was suggested to me that (maybe) the motor could be 'adapted' somehow into being a generator unit too whereby the water is (with a modified pump) made to turn... and then it simply powers up as a motor again to run the water back up.


This certainly saves having a dual separate layout of a motorpump for water return, and a main generator unit for actual energy supply into the grid, but maybe not possible as it radically alters the original motor and pump's design.

Most new existing gravity generation systems however do now use this method ...but possibly a very expensive option.

The reuse of a 'scrap' pumpunit thus I'd thought to be much cheaper.


One of the steam turbine powered AEI 500MW generator stator and rotor is actually still there.

Rather too large to be of any real use for my small generation project!



The general disarray surrounding the rotor doesn't look very good and so who knows how carefully that was dismantled.

It would require a large water wheel, or turbine certainly to run it at 500MW!!


Anyway, bearings on one motorpump offered seem to be possibly u/s (judging by the general oil slick that has appeared from the motorframe), and so it's possibly failed somehow.


I'm trying to determine IF any original starting gear is available or has already been scrapped.

Indeed if any motorpump unit doesn't find a buyer - is it the intention then to be just scrapped or could 'a deal' be done whereby those parts can still be salvaged (as these motor pump units are not made anymore) and it seems pointless them just heaping up a pile of scrap when many parts even if the whole unit was not suitable to be run, could provide a valuable source of spare parts.

While many won't be thinking of reusing anything like these large pumps, hopefully some can be made to run again :)


I assume the equipment was already fully disconnected from the main busline but the cable channel tracks nearby seem totally undisturbed so I think the actual motor units are still 'connected up' and certainly those caps in the cabinets could even retain a mighty charge.

Is that (I wonder) something the company is actually aware of?


While most demolition isn't now done by a human and hammer, pulling out that capacitor cabinet with a demolition grab or shear could be a timebomb just waiting to go off.

Even someone just cutting the cables in the track conduits from that cap cabinet could be lethal.

I will warn them just incase nobody has risk assessed the possible dangers there.


Certainly a very good point that you bring up! Thanks for that.

(You might have just prevented a nasty accident!)


It reminds me of a news story where a scrap merchant hoisted up, then was oxy acetylene cutting directly into a 11kv transformer (filled with oil of course) and he didn't seem to realise the danger ....until it was too late.


Judging by the capacitor cabinet which I began with - already damaged, that doesn't bode well for onsite safety procedures....