Was asked today if I might like to swop a 15 kVA transformer for more modern efficient unit. Think the answer has to be NO - but I'm interested to know what tickets would be required for such work, and how lomg my 1000v marigolds might last
15 kVA transformer
- Thread starter binky
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Help Support Talk Electrician Forum:
Maybe you meant 15kV instead of 15kVA??
Distinctly possible Ovram. Not seen the kit, I'm linked in to a guy who sells all sorts of energy saving gear to factories, shops , offices etc etc. Factory concerned apparently machines propellers (as in boats), and this bit of kit is for some big piece of machinery. So I might be getting completely wrong end of stick, but was in a wet field contaning 5 MW of solar panels yesterday, in the DNO connection hut, when the 3 substations connected into grid. Not jumped out of my skin so much for ages 
Thought the stuff had broken :^O . So perhaps I was being a bit nuerotic last night (cured by :Y ) kindly ignore this thread for a while.
Going back to solar farm, young lad driving tractor had a lucky escape after clouting DNO pole with much spreader. Saved by tractor tyres, and staying in cab, and weirder than that, where i rent an office there is a private ambulance crew, one of which is a retained fireman called out to said tractor.......spooky
Thought the stuff had broken :^O . So perhaps I was being a bit nuerotic last night (cured by :Y ) kindly ignore this thread for a while.Going back to solar farm, young lad driving tractor had a lucky escape after clouting DNO pole with much spreader. Saved by tractor tyres, and staying in cab, and weirder than that, where i rent an office there is a private ambulance crew, one of which is a retained fireman called out to said tractor.......spooky
bhamoggy
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No tickets required,Was asked today if I might like to swop a 15 kVA transformer for more modern efficient unit. Think the answer has to be NO - but I'm interested to know what tickets would be required for such work, and how lomg my 1000v marigolds might last
I work as a service engineer for cnc machinery and I'm wiring transformers up to 70kva every day, some even bigger.
I'm fully qualified electrician but some of the guys i work with haven't got any qualifications and they're still wiring them up
just because you dont have a ticket doesnt actually mean one isnt required,!
im loving the term 'fully qualified electrician'
what does that actually legally mean?
a 5wFw could state the same thing !
im loving the term 'fully qualified electrician'
what does that actually legally mean?
a 5wFw could state the same thing !
so enlighten us then Steps, what tickets are required? hence the original post.
NO idea,
I dont have them either
:C
but Im sure somebody will have thought of one,
15Kv is high voltage after all,
or is it 15Kva, did we find out yet?
15Kva should be OK I woulda thought,
It won't be 15Kva no matter what, it could be 15kVA, as per the OP, or 15kV.
The case of the k is VERY important, as kilo is a small k, Kelvin is a large K.
15kVA @ 400V 3ph is not that big.
Is it 400V primary to 110V secondary perhaps?
TBH it sounds too small to be an HV primary, the current would be about 1.4A!
@400V secondary
15000/400=37.5A
@110V secondary
15000/110=136A
See last but one below:
Taylor Transformers - Portable Tool and Site Transformers
They have the K / k wrong on their site too!!!
The case of the k is VERY important, as kilo is a small k, Kelvin is a large K.
15kVA @ 400V 3ph is not that big.
Is it 400V primary to 110V secondary perhaps?
TBH it sounds too small to be an HV primary, the current would be about 1.4A!
@400V secondary
15000/400=37.5A
@110V secondary
15000/110=136A
See last but one below:
Taylor Transformers - Portable Tool and Site Transformers
They have the K / k wrong on their site too!!!
My bad
Not actually seen job yet, working on third party info, but I suspect it's for a large piece of machinery, big machining centre or something. Company makes boat propellers - not huge container ship, stuff up to about 2ft diameter. Will post link to website if allowed by admin.
Ah, it will almost certainly be a 415/380V jobbie.
Japanese CNC machines tend to have them.
So not actually that big TBH.
Carp TBH, shame they can't just build the machine right I the first place!
---------- Post Auto-Merged at 19:24 ---------- Previous post was made at 19:23 ----------
Post the link to your customer if you wish, we'll AFAIAC anyway.
Japanese CNC machines tend to have them.
So not actually that big TBH.
Carp TBH, shame they can't just build the machine right I the first place!
---------- Post Auto-Merged at 19:24 ---------- Previous post was made at 19:23 ----------
Post the link to your customer if you wish, we'll AFAIAC anyway.
From that mate, I'd go for a 440(415)/380V transformer, not that big TBH.
No bother to fit, you are more than qualified TBH.
No bother to fit, you are more than qualified TBH.
There you go,
The man has spoken.
The man has spoken.
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