We all brag about the fact that we are not just PLC programmers... to do the things we do... one need much more... neumatic, hydraulic, electrical, mechanical knowledge and on and on.
Well, here is one for the DickDV of this world (hope you can give me a few hints on this one)
My brother in law is a milkman. Nothing special about this.
He has a truck. A nice truck. The problem comes from the fact that it's Thermo-King compressor system is supplyed by a 208V 3 phases circuit. The power comes from a diezel motor included in the unit.
When he is working, this motor/compressor system starts and stops on demand.
At night, when he parks the truck at the depot... in the past he would connect to a 120 AC outlet and go home. Now, with this 3 phase system he has to let his system running.
They do not have 3 phases outlets at the company where he get his milk and stuff.
He tested the connection at a place where they have 3 phases and there is a detection and transfer circuit which detect the incoming power and switches from the diezel engine to an electric motor.
Today I looked at it and its a very nice system. Miniature diezel engine, compressor, fan, heat exchanger... just a nice setup.
I know that we could use an inverter to transfer this 2 phases outlet into a 3 phase system.
We could also replace the motor.
But could we convert the 2 phases into a 3 phase via a rotary converter or other devices?
This is a compressor system, its hard to start and will start often.
Anyone has recommendation for this. For me there is no money involved but the fun of solving this to the minimum price...
I have a 5HP inverter in the shop but with the 2 phase supply I would need a 10 HP to do the job... what could we do?
If anyone thinck this has nothing to do with automation... thinck again
Spec: Motor 5HP / 230 V / 3 ph - 14.xx Amps
Well, here is one for the DickDV of this world (hope you can give me a few hints on this one)
My brother in law is a milkman. Nothing special about this.
He has a truck. A nice truck. The problem comes from the fact that it's Thermo-King compressor system is supplyed by a 208V 3 phases circuit. The power comes from a diezel motor included in the unit.
When he is working, this motor/compressor system starts and stops on demand.
At night, when he parks the truck at the depot... in the past he would connect to a 120 AC outlet and go home. Now, with this 3 phase system he has to let his system running.
They do not have 3 phases outlets at the company where he get his milk and stuff.
He tested the connection at a place where they have 3 phases and there is a detection and transfer circuit which detect the incoming power and switches from the diezel engine to an electric motor.
Today I looked at it and its a very nice system. Miniature diezel engine, compressor, fan, heat exchanger... just a nice setup.
I know that we could use an inverter to transfer this 2 phases outlet into a 3 phase system.
We could also replace the motor.
But could we convert the 2 phases into a 3 phase via a rotary converter or other devices?
This is a compressor system, its hard to start and will start often.
Anyone has recommendation for this. For me there is no money involved but the fun of solving this to the minimum price...
I have a 5HP inverter in the shop but with the 2 phase supply I would need a 10 HP to do the job... what could we do?
If anyone thinck this has nothing to do with automation... thinck again
Spec: Motor 5HP / 230 V / 3 ph - 14.xx Amps