zmanvortex
Member
Hello all. We are an OEM and one of our plc controlled machines has a mixture of 3ph and 1ph motors on it. The 3ph motors are for drilling wood and the 1ph motors are standard wood routers for routing hinge pockets.
In the past we have hung a large transformer on the machine to get the 120VAC for the routers. We only required the customer to run 3ph 3 wire (+ ground)to the machine. When the routers start they pull a lot of current so we had to oversize the transformer.
I want to eliminate the costly transformer and require the customer to run 3ph 4wire to the machine to get my 120VAC. This will not cause such a strain on the transformer and the system in general.
We recently ran into a customer who did not have 3ph 4wire. He had a separate service for the 3ph and another service for his 120VAC power.
I am curious as to whether some of you guys have ran into this issue and what approach you might have taken. It seems to me that most modern machines with the same power requirements would require the customer to supply 3ph 4wire to the machine. Thanks.
In the past we have hung a large transformer on the machine to get the 120VAC for the routers. We only required the customer to run 3ph 3 wire (+ ground)to the machine. When the routers start they pull a lot of current so we had to oversize the transformer.
I want to eliminate the costly transformer and require the customer to run 3ph 4wire to the machine to get my 120VAC. This will not cause such a strain on the transformer and the system in general.
We recently ran into a customer who did not have 3ph 4wire. He had a separate service for the 3ph and another service for his 120VAC power.
I am curious as to whether some of you guys have ran into this issue and what approach you might have taken. It seems to me that most modern machines with the same power requirements would require the customer to supply 3ph 4wire to the machine. Thanks.