Rotarymaker
New Member
Hi all,
I have just picked up a Trident 15 single phase to 3 phase rotary converter cabinet box
It is the Mk 2 model.
It was made by RMK Components Ltd (in Belfast (UK) I think).
I think it is a 15hp rotary converter panel cabinet but not sure if it is 230V or 415V 3 phase output
I cannot find any info on this whatsoever .....I think this company has gone out of business years ago.
Perhaps someone out there is running this same unit in their garage / factory or farm? .... or has wired one of these units into place years ago?
If so, I need some simple info to start with......
I do not have the idler (balancer) motor that came with this cabinet, can someone please inform me of what motor is best to use with this setup?
Is it a 240V or 415V motor?
What is the motors spec on its nameplate (hp? rpm? etc)?
Is it wired to this panel as star (Y symbol) or delta (triangle symbol)
Has anyone a service or user manual for this, that I may have a copy of?
really appreciate any help on this,
many thanks,
Rotarymaker.
With ref above, to OldLes and anyone with such info ........
I've just found from todays forum search that you were involved in similar projects in the past
Any possibility of you sharing any of the info (schematics /circuits etc) on the Transwave rotarys as my RMK unit is possibly very similar .... it has, what looks like a large 3 wire toroidal stepup autotransformer on its 240V input??
Would really appreciate any comments / info.
PM me if you prefer.
thanks again for everyones time / help on this,
Rotarymaker
BTW OldLes, I'm not that far away from you .....just a canoe trip will take you here! ....to N.Ireland.
I have just picked up a Trident 15 single phase to 3 phase rotary converter cabinet box
It is the Mk 2 model.
It was made by RMK Components Ltd (in Belfast (UK) I think).
I think it is a 15hp rotary converter panel cabinet but not sure if it is 230V or 415V 3 phase output
I cannot find any info on this whatsoever .....I think this company has gone out of business years ago.
Perhaps someone out there is running this same unit in their garage / factory or farm? .... or has wired one of these units into place years ago?
If so, I need some simple info to start with......
I do not have the idler (balancer) motor that came with this cabinet, can someone please inform me of what motor is best to use with this setup?
Is it a 240V or 415V motor?
What is the motors spec on its nameplate (hp? rpm? etc)?
Is it wired to this panel as star (Y symbol) or delta (triangle symbol)
Has anyone a service or user manual for this, that I may have a copy of?
really appreciate any help on this,
many thanks,
Rotarymaker.
7th July 2012 07:05 PM #16
OldLes OldLes is offline
Joined: Mar 2012
Location: Isle of Man - The isle separating UK and Ireland
Posts: 8
Send a message via Skype™ to OldLes
GEDW, I see it was March when I posted my question above, and since then I have analysed the circuits of a Transwave static convertor, a Transwave 10KW rotary, and a Boost 12 KW rotary. All 230 v single phase input, all incorporating a version of 230 to 415V step up auto transformer. The Boost has a simple one as described, the static has a "double" one (415-230-0-230-415) whilst the Transwave rotary has a 0-230-415, + 0-180 with a few extra tappings to allow probably for a 380v or a 415v output.
For you application, you would need a simple 0-230-415v autotransformer, BUT it would have to be rated at 25KVA, which would be capable of pulling 100 amps from your single phase supply. Is your supply big enough? You may need to contact your local electricity board regarding any special regulations or requirements.
How big an OUTPUT do you need? You could try to pick up a (say) 10 HP motor of otherwise similar specification, and reduce all you capacitors to one third of their current value. Typically in these rotaries and statics, if they need say 1,000 microfarads, they would use perhaps ten off 100 UFD in parallel, so you would simply remove six of them. If you follow this route, be sure to establish exactly the slave motor's specification. You may generally come across motors today which are marked up 230v delta connected, 415v star connected on the nameplate. Both the above mentioned convertors had 415v DELTA connected motors THESE ARE NOT THE SAME!!! Instead of 230/415v, they are really 415/720V, and all were two pole (2,940 rpm). The sort that would be used on a large fan with a star / delta startup configuration.
Since March, I have modified that UTube design I referred to, experimented with six different slave motors, and I THINK I am now at the stage where it WILL WORK!!!!
OldLes.
With ref above, to OldLes and anyone with such info ........
I've just found from todays forum search that you were involved in similar projects in the past
Any possibility of you sharing any of the info (schematics /circuits etc) on the Transwave rotarys as my RMK unit is possibly very similar .... it has, what looks like a large 3 wire toroidal stepup autotransformer on its 240V input??
Would really appreciate any comments / info.
PM me if you prefer.
thanks again for everyones time / help on this,
Rotarymaker
BTW OldLes, I'm not that far away from you .....just a canoe trip will take you here! ....to N.Ireland.
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