Author Topic: 5kva transformer / 32 amp outlet - UK  (Read 6515 times)

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Offline carlb40

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5kva transformer / 32 amp outlet - UK
« on: January 05, 2017, 03:12 PM »
Right guys i have decided to get myself a 5kva tranny in the next month or so.
As a site chippie working on smaller refurb sites, transformers are often supplied. However no one seems to listen when i tell them one 5kva transformer is not good enough to run lights, 2 lots of chippies tools etc and be safe. I often take my own 3.3kva tranny in and use that for myself, having taped one outlet up to prevent it being used by others.
But often find my stuff unplugged and others using my tranny.  [mad]

So to make things even harder, i want the 5kva and use the 32 amp outlet and glue the 16 amp outlets shut.
So the question is - can i plug the soon to be purchased CTM26 into the 32 amp outlet without issues? 

TIA :)
Carl

Never never go, never never know [smile]

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Offline GarryMartin

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Re: 5kva transformer / 32 amp outlet - UK
« Reply #1 on: January 05, 2017, 03:48 PM »
You have two options I guess.

You could remove the 16A plug from the extractor and replace it with a 32A one. Not sure how that affects warranty though?

Or you could use a 32A plug to 16A socket "flylead" - only problem with that is that it puts you back in the same position; someone is just as likely to unplug your extractor and use the socket for something else.

Offline carlb40

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Re: 5kva transformer / 32 amp outlet - UK
« Reply #2 on: January 05, 2017, 04:03 PM »
Thank you Garry. I was thinking about swapping the plug for a 32 amp version.
Surely Festool can't expect you to send a 110v tool back under warranty just to change a plug if it got damaged etc? :/

Think this is a warranty question for Phil Beckley :D
Carl

Never never go, never never know [smile]

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Offline GarryMartin

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Re: 5kva transformer / 32 amp outlet - UK
« Reply #3 on: January 05, 2017, 04:26 PM »
Surely Festool can't expect you to send a 110v tool back under warranty just to change a plug if it got damaged etc? :/

Definitely one for @Phil Beckley to provide some guidance on.

Offline demographic

  • Posts: 311
Re: 5kva transformer / 32 amp outlet - UK
« Reply #4 on: January 05, 2017, 05:47 PM »
I have one of those 32-16 amp flyleads.
On the bigger sites they often have a massive transformer with a heap of 16 amp sockets (all being used usually) and a couple of 32 amp sockets which are usually empty.

Having that means I have more choice about where I plug in, I keep it in the top of my CTM 26, its dead handy.

Oh and no issues so far.

Offline joiner1970

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Re: 5kva transformer / 32 amp outlet - UK
« Reply #5 on: January 06, 2017, 05:50 PM »
I've been thinking of getting a 5kva transformer, so my kapex runs better. Trouble is they're a pain to drag around. Can't someone invent a lightweight one

Sent from my ALE-L21 using Tapatalk


Offline richy3333

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Re: 5kva transformer / 32 amp outlet - UK
« Reply #6 on: January 07, 2017, 03:52 AM »
I read the original post as referring to the outlets on the tranny, but later posts refer to the extractor? If the question is about replacing the extractor power outlet I guess only Festool could advise as it will be dependent upon the internal circuitry and cabling of the extractor to take the larger potential load (and I doubt the CT would)?

Offline GarryMartin

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Re: 5kva transformer / 32 amp outlet - UK
« Reply #7 on: January 07, 2017, 04:31 AM »
I read the original post as referring to the outlets on the tranny, but later posts refer to the extractor?

I don't think we're talking about replacing the socket on the extractor, I think we're talking about replacing the plug end with a 32A so that no one removes it from the transformer to use the socket on the transformer for their tools. If it's 32A on the transformer, their 16A tools won't plug in.

Offline carlb40

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Re: 5kva transformer / 32 amp outlet - UK
« Reply #8 on: January 07, 2017, 04:46 AM »
I read the original post as referring to the outlets on the tranny, but later posts refer to the extractor?

I don't think we're talking about replacing the socket on the extractor, I think we're talking about replacing the plug end with a 32A so that no one removes it from the transformer to use the socket on the transformer for their tools. If it's 32A on the transformer, their 16A tools won't plug in.


Yes Garry, that is exactly what i wish to do. :)
Carl

Never never go, never never know [smile]

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Offline John Shefford

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Re: 5kva transformer / 32 amp outlet - UK
« Reply #9 on: January 10, 2017, 01:34 PM »
I have a 5kv tranny with 2 16 amp and 1 32 amp sockets. I got it to run a Makita extractor that was capable of having a dewalt chop saw run off it. Worked fine for years no slow down at all. I'm not a sparks but I've seen people swap 32 amp plugs for 16 ones on site on heavy duty extractor s and they always run ok . Festool stick answer would be don't swap so you need someone who understands UK site voltages

Offline Phil Beckley

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Re: 5kva transformer / 32 amp outlet - UK
« Reply #10 on: January 10, 2017, 02:56 PM »
Surely Festool can't expect you to send a 110v tool back under warranty just to change a plug if it got damaged etc? :/

Definitely one for @Phil Beckley to provide some guidance on.

Hi
 Apology for the late response.
I have emailed service to get the answer on this
rg
Phil
Festool U.K Employee | Festool UK Website


Offline carlb40

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Re: 5kva transformer / 32 amp outlet - UK
« Reply #11 on: January 10, 2017, 02:59 PM »
It isn't a power issue or lack of it for me. I only work smaller sites.  What i want is to use the 32 amp socket to stop others taking power away from me.  I have been on too many sites where they have a 5kva transformer powering festoon lights, then leads off the lights for tools. Leads with 2 or more splitter boxes powering tools.

Last year a chippie blew 2 5kva trannies up because it was powering lights and he plugged a table saw into it.  [eek]
Despite explaining to the ''foreman'' that the tranny only gave a constant 3kva, which the lights effectively used up. All he could see was the tranny said it was 5kva, so should run everything ok.  [scared]
 
Carl

Never never go, never never know [smile]

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Offline carlb40

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Re: 5kva transformer / 32 amp outlet - UK
« Reply #12 on: January 10, 2017, 03:03 PM »
Surely Festool can't expect you to send a 110v tool back under warranty just to change a plug if it got damaged etc? :/

Definitely one for @Phil Beckley to provide some guidance on.

Hi
 Apology for the late response.
I have emailed service to get the answer on this
rg
Phil


No worries Phil, you are a busy man. :)

Thank you for your time.
Carl

Never never go, never never know [smile]

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Offline Phil Beckley

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Re: 5kva transformer / 32 amp outlet - UK
« Reply #13 on: January 11, 2017, 04:10 PM »
Surely Festool can't expect you to send a 110v tool back under warranty just to change a plug if it got damaged etc? :/

Definitely one for @Phil Beckley to provide some guidance on.

Hi
 Apology for the late response.
I have emailed service to get the answer on this
rg
Phil


No worries Phil, you are a busy man. :)

Thank you for your time.

....and the answer is go for it
rg
Phil
Festool U.K Employee | Festool UK Website


Offline carlb40

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Re: 5kva transformer / 32 amp outlet - UK
« Reply #14 on: January 12, 2017, 05:22 AM »
Woooohoooo Thank you Phil :D
Carl

Never never go, never never know [smile]

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Offline AJCruise

  • Posts: 27
Re: 5kva transformer / 32 amp outlet - UK
« Reply #15 on: January 12, 2017, 06:46 AM »
Do you not have to use heavier gauge cable on 32A circuits, as you do with 240V installations? I have some for heavy duty tools and a 4-gang splitter (16A sockets)
If you connect a lot of tools, lights etc., to a standard 16A cable, is it not likely to overheat/melt?
I know, because it has happened to me using a 240V extension lead with too much load  attached.
Regards, Alan
PS-1E (First Festool!! Festo ~1989 and still going strong!),  TS55, RO90,  DWC 18-2500 Set, PDC 18/4, MFT/3,  KA-UG 120 Set, CTL Midi,  2x FS1400 Rails,  FS-Rapid,  Selection of FS screw clamps.

Offline carlb40

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Re: 5kva transformer / 32 amp outlet - UK
« Reply #16 on: January 13, 2017, 12:57 PM »
Do you not have to use heavier gauge cable on 32A circuits, as you do with 240V installations? I have some for heavy duty tools and a 4-gang splitter (16A sockets)
If you connect a lot of tools, lights etc., to a standard 16A cable, is it not likely to overheat/melt?
I know, because it has happened to me using a 240V extension lead with too much load  attached.
Regards, Alan


Probably yes. But the Ct26 seems to have a thicker cable than the midi i have now. Plus i will be the only one using that transformer, which will have the CT26 plugged into it, plus only 1 tool plugged into the extractor. :)   So there will be no lights/ splitter boxes etc attached to my transformer. This is just me being selfish and wanting to use my own transformer just for my tools only.  [big grin]
Carl

Never never go, never never know [smile]

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Offline Job and Knock

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Re: 5kva transformer / 32 amp outlet - UK
« Reply #17 on: February 05, 2017, 05:25 PM »
All he could see was the tranny said it was 5kva, so should run everything ok.  [scared]
Sounds about par for the course, TBH. I've cooked a 65VA tranny that way by plugging-in a 1400 watt extractor then powering  up my DW745 -my that was fun. I use heavier gauge 32 Amp cables to feed my kit with either 4mm or 6mm copper. If I had to run off my own transformer than I'd look at getting differentially keyed plugs and sockets for the transformer end of the kit. I've come across these on 230 volt circuits in computer rooms (where it's meant to prevent cleaners from plugging their ratty old "Hettys" and "Henries" and then putting loads of nasty EMF into the power supply that the servers are on) but I don't know if they are available for 110 volt

BTW if you aren't a Brit, a "Hettie" is a particular type of vacuum cleaner, as is a "Henry" (made by Numatic)
Simplicity is the embodiment of purity and unity
- Shaker Maxims

Offline Ross 71

  • Posts: 48
Re: 5kva transformer / 32 amp outlet - UK
« Reply #18 on: February 05, 2017, 08:57 PM »
Ok, I'm a mains voltage feller, so I'm struggling a bit with this.

Is the 5kva transformer powered off the mains, or 3 phase or what? If its mains, isn't that about 22Amps?

In my limited experience of 110v, I find myself thinking that the transformer maker reckons a nice short lead is a good idea, use less copper, and the yellow land anchor wont get lost as it stays by the wall. Then the power tool manufacturer says to his self= about a 4' lead should be enough, there'll be plenty of flex on the transformer......

I find myself thinking this when I'm trying to work out how to angle grind some horrible piece of rusty metal at gutter height when all I brought was wood tools.

If you need a tool and don't buy it, You will ultimately find that you have paid for it but don't have it- Henry Ford

Offline Job and Knock

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Re: 5kva transformer / 32 amp outlet - UK
« Reply #19 on: February 19, 2017, 03:14 PM »
Is the 5kva transformer powered off the mains, or 3 phase or what? If its mains, isn't that about 22Amps?
Mostly off the mains and you need to ensure that there's nothing else on the circuit drawing power because that will trip the breaker

In my limited experience of 110v, I find myself thinking that the transformer maker reckons a nice short lead is a good idea, use less copper, and the yellow land anchor wont get lost as it stays by the wall.
Actually the 110 volt edicts are all about ensuring that cable runs across the site are 10 volt and not 230 volt, so a long 230 volt trailing flex would be "pulled" (banne) pretty quickly.

I find myself thinking this when I'm trying to work out how to angle grind some horrible piece of rusty metal at gutter height when all I brought was wood tools.
Try a cordless grinder. Amazing tools, cordless grinders.....
Simplicity is the embodiment of purity and unity
- Shaker Maxims