3 Phase question

[Cam.H]

Getting there with the new workshop setup…


I have multiple 3 phase points (http://www.cameronhird.com/photo.JPG) and they are all 4 pin and say: 10 AMP, 50Hz, 500v.


My question.


Will my current 3 phase work with these machines:


Table saw: (http://www.carbatec.com.au/12-x-series-premium-sliding-table-cabinet-saw_c21869) 5hp 415v 3 phase
Thicknesser: (http://www.carbatec.com.au/spiral-head-20-industrial-thicknesser_c20863) 5hp 415v 3 phase


Anyone know a good sparky that can answer this and install a clear vue?

Many thanks again!


Cam.

Edit:

Inserted by Admin (and it would be good if only people actually qualified to answer these questions would reply)


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[NCArcher]

Short answer, Yes they will work. Can I install a ClearVue for you? No. :U

[Cam.H]

Great! Whats the 'long' answer?

Do you mean just plug it in and away she goes, or yes it will work but I need to do xyz first?

Thanks for the help.

Cam

[DavidG]

10amp * 3 Phase * 415Volt = 10 * 3 * 415 = 12.450Kw / 746 Watt/Hp = 16.7Hp

5hp is a breeze.

Qualifications.
24yrs in electronics
Technician, senior technician and technical officier

[Cam.H]

10amp * 3 Phase * 415Volt = 10 * 3 * 415 = 12.450Kw / 746 Watt/Hp = 16.7Hp

5hp is a breeze.

Qualifications.
24yrs in electronics
Technician, senior technician and technical officier


Why didn't I think of that.. :)

So I'm right to plug and play?

Thanks for the help.

[A Duke]

Actually that's wrong. You multiply by the square root of three, not three.
If the plugs on your machines match the sockets, then you are probably right to go.
If there are more pins or protruding bits that stop it going in, you need a sparky.
Regards

[BobL]

Why didn't I think of that.. :)
So I'm right to plug and play?
Thanks for the help.

Except if the motor goes the wrong way around, then two of the phases need to be swapped over.
This is pretty important on most woodworking machines that don't have a need for reverse rotation.

[DavidG]

Actually that's wrong. You multiply by the square root of three, not three.
:doh:
Knew it was a bit of time back....Slowly losing the memory.

10amp * 3^.5 Phase * 415Volt = 10 * 3^.5 * 415 = 7.188Kw / 746 Watt/Hp = 9.6Hp

[NCArcher]

Great! Whats the 'long' answer?


As others have already mentioned, 10 Amp outlets are fine as the full load current for a 5HP motor is around 7.7 amps. The pin configuration of your plug should match the sockets and you need to check direction. A 4 pin plug will fit into a 5 pin socket but not the other way round. On some older plugs a 10 amp plug will also fit into a 15 Amp socket, although I don't know why I mentioned that because you have 10 amp outlets :doh:. If the existing plugs don't fit then the cheapest thing to replace is the plug. Sockets cost an arm and a leg.
If your machines have a 5 pin plug (sometimes the neutral is used for lower voltage control) and you only have 4 pin outlets, you will need to have a neutral connected to the socket. If you're lucky it may be sitting there just not hooked up, if you're unlucky you will need to have a neutral wire run from the switchboard and the outlet replaced with a 5 pin version. I know, too much information but your sparky will be able to quickly let you know what you need. (Having said that, a thicky and a TS are unlikely to need a neutral).

[Timless Timber]

Allow me to make an "unqualified' observation.

The outlet you need should match the plug that comes on your machine.

My 5 Hp 3 phase Hare and Forbes has a 20 amp plug fitted.

Yes it might well run off a 10 amp outlet.... (as suggested above) except for one small problem

http://i.ebayimg.com/00/s/NTgwWDU4MA==/z/9MEAAOxyQj9RM963/$T2eC16RHJGIE9nnWqw17BRM962sjPg~~60_3.JPG
20 amp Plug!

http://i.ebayimg.com/00/s/NTg4WDYzNA==/z/hjkAAMXQJWZRCxs8/$T2eC16RHJHQE9nzEzMOMBRC)s8vusQ~~60_3.JPG
20 amp outlet!

Now lets look at a 10 amp outlet.

http://i.ebayimg.com/00/s/MTYwMFgxMjAw/z/QugAAOxyCSRSE0E2/$(KGrHqJHJB!FH6g1sQWoBSE0E2!oyw~~60_57.JPG

Yes the 10 amp outlet has a different keyway to the 20 amp plug (in short it won't plug in, numbers of pins 4 or 5 not withstanding)- so if your machine / machines come from the manufacturer supplied with a 20 amp plug as mine did (suggesting they need a 20 amp circuit for 5 Hp) and you fit all 10 amp outlets...then you will have to change all your plugs over to a lower amperage (10A) Plug!

I've no idea, if that will void your machine warranty or not?.

I'm not qualified to comment - (but I'm also not blind - or stupid!). :)

[A Duke]

As I said if it dose not plug straight in get some one who knows to have a look.

[Cam.H]

As usual, great info. Thanks very much for the help.

I'll check out the plug/pin configuration and go from there.

Cheers!