australian transformer help

[antiunderscores]

Hey guys, i bought an old hi-fi amp and for some reason taps coming out of the transformer aren't connected to a cord. Its not too tricky to find colour codes for the wires but im not sure how to connect these wires to a plug. Any help would be great.
The colours are brown, yellow, green, black and red (but may be a very reddish orange)
i've looked around a little bit and so far havent been able to find any good info. This link might help a little, if ur unfamiliar with the australian style plugs.
AS 3112 - Wikipedia, the free encyclopedia

And we run 3 phase over here, if that helps.

[black_labb]

Hey guys, i bought an old hi-fi amp and for some reason taps coming out of the transformer aren't connected to a cord. Its not too tricky to find colour codes for the wires but im not sure how to connect these wires to a plug. Any help would be great.
The colours are brown, yellow, green, black and red (but may be a very reddish orange)
i've looked around a little bit and so far havent been able to find any good info. This link might help a little, if ur unfamiliar with the australian style plugs.
AS 3112 - Wikipedia, the free encyclopedia

And we run 3 phase over here, if that helps.

our power outlets are not 3 phase. there is a hot, neutral and ground. 3 phase is used but only for high powered things in commercial locations. you wont find it in your house.

the plugs are essentially the same system as overseas, there is a hot, a neutral (interchangeable) and a ground. the voltage is 230-240v.

black is usually ground, but that shouldnt be connected to the transformer windings. is everything connected aside from the power section?

from the sound of things you dont have too much knowledge and i'd suggest getting someone do it for you. its dangerous enough to risk things with what goes on after the transformer, but dont risk messing around with the primary side of the transformer if you dont know much. thats connected to the house and can deliver 10Amps of 240v before a fuse blows. not something to mess with.

[antiunderscores]

thanks for the info. But dont we generate electricity in three phase with the three seperate coils spinning inside the generator that get superimposed to create our AC? so i just assumed that transfered to our house, my bad.

Yeh, im kinda new to this. I've screwed around a fair bit with the preamp of another old hi-fi and a crate amp of mine and im working on another i've semi-designed for fun but i dont have a lot/any of experience with the power amp side of things and definently not the opposite end of the transformer.

This isnt valuable/worthwhile enough to drive an hour+ to take it to someone who knows what they're doing and then go pick it up to solder 3 wires to a plug. And i personally think experience is the best way for me to learn about this stuff, but im over my head so im asking for a hand.

[Steve Conner]

Is there a big round hole in the chassis near the ends of those wires where someone stole the voltage selector? And do you know how to work a multimeter?

If so, set it to the ohms range, and measure all of those loose wires with respect to each other until you find the two with the greatest resistance between them. Should be about 5-10 ohms. Those are your hot and neutral. If you find one that reads "infinity" ohms with respect to all the others, that's a Faraday screen that should be connected to the chassis. The chassis should be connected to the ground pin of the plug.

If it blows up, don't blame me, I disclaim all responsibility. If you don't know how to work a multimeter, put it away and do something else. Oh, and transformer wire colours were only ever standardised in the USA, for the rest of the world they are random.

Aussie land is probably the same as the UK: you get 3 phase power out in the street, with 415V between phases, but each house gets one phase and neutral, which is 240V. (240 = 415 divided by the square root of 3 if you're curious)