What power output or source do I need to power my compressor ?

[Paddy]

I'm guessing it's not 240v as I wacked a plug on it and kept tripping lol



It did come with this plug on it. Was in a small workshop at someone's house. Problem is i'm trying to sell the bloody thing and who wants to buy something they cant see working.

[mattyb123]

Its 230v 12.9 amp will run off a 13amp plug.

But there may be a fault with the compressor could be why its tripping.

[mattyb123]

That plug thing just looks like a remote start stop button.

Although the photo isnt too clear.

Does it say newey and aire on it

[Paddy]

Didn't trip with the commercial looking plug ? Maybe because its plugged into a socket in my garage. Sometimes things do trip if I overload the sockets with to many things on.

[mattyb123]

Iv just looked at photo again and it does say 400v at the end of the top line.

It could be that the commercial lookong plug has a higher rating. And iff the bearings on the motor are worn and on there way out. It will take a higher current to start the motor.

Hence why its tripping a 13 amp supply.

I am a sparky but its better when i can look at things face to face and test stuff. Lol

[Paddy]

Thanks mate for the info.

[Paulpen]

Its deffo single phase

Should run off a normal plug going by the info on it !

While im here - anyone know about 3 phase motors and inverters ?

[mattyb123]

I know a very small amount whats up

[Paulpen]

If I have a single motor ramp but its 3 phase with this spec motor :

http://s17.postimg.org/s7dn8vslb/IMG_1431.jpg


Will this spec inverter run it off normal household power :

Huanyang VFD. 2.2kW VFD with 220v 3PH output.

I think it will although a tad slow due to the lower kW measurement but I know very little about electrics

[mattyb123]

Im not 100% dude. But i would advise buying an inverter with a 3kw output. I think a 2.2 kw output inverter would trip. As the 3kw ramp will just take as much power as it needs.

[Paulpen]

See thats the thing I dont know about lol

Finding cheap inverters is hard work

[mattyb123]

I bet it is dude. Good luck sorry i cnt help more

[Paulpen]

Might look at converting / replacing the motor with a normal one then or getting 3 phase - both look better long term options !

[skyshack]

Top line is starter and run capacitor rating.
http://www.capacitorguide.com/motor-starting-capacitor/

4th line it's rated for 50Hz. UK.
5th line 2.2 Kw, a 13 amp socket should cope with 3 Kw.
6th line 230V. UK.
7th line 12.9A, 13 amp socket should just cope.
8th line motor runs at 2750rpm.
9th line under the CE mark PH 1 = single phase.

What your supply that tripped can't cope with is the starting inrush current.

That "plug" is the starter / contactor. Often a 3 phase starter with just 1 phase used. Quite expensive £100 for box, contactor and overload.
http://uk.rs-online.com/web/p/produc...Fa-WtAodciMAkA

[Paddy]

Top line is starter and run capacitor rating.
http://www.capacitorguide.com/motor-starting-capacitor/

4th line it's rated for 50Hz. UK.
5th line 2.2 Kw, a 13 amp socket should cope with 3 Kw.
6th line 230V. UK.
7th line 12.9A, 13 amp socket should just cope.
8th line motor runs at 2750rpm.
9th line under the CE mark PH 1 = single phase.

What your supply that tripped can't cope with is the starting inrush current.

That "plug" is the starter / contactor. Often a 3 phase starter with just 1 phase used. Quite expensive £100 for box, contactor and overload.
http://uk.rs-online.com/web/p/produc...Fa-WtAodciMAkA

Thanks mate

[Robbie]

What keeps tripping, the fuse or the breaker in the consumer unit? What's the rating of the device that trips? You can get motor rated MCB's (type D from memory) which will allow the higher starting currents a big motor will require without tripping. Or there could be a fault

[Asht_200]

Are single phase to 3 phase converters any good? Considering most residential properties are only supplied by a single phase, I'm guessing a converter is the only option.