Wizards,
Although this is not PLC related, I believe some of you wizards might be able to point us in a direction as I have limited experiences with troubleshooting transformers.
Back Story: Forklift driver hit the dock plate control box, the door got tweeked, one of the push buttons got smashed and nothing would work.
We pounded the door and box back into shape and replaced the PB.
Upon powering back up, we had no 120v out of the transformer.
Got a new transformer, no 120v output.
We have 280v coming in on leg 1 and 2, leg 3 doesn't go to the transformer.
We do not have any output voltage.
We tried 3 different transformers, same results.
We are fortunate that there is a second box that runs another dock that we closed off.
We have "robbed" the 120v output from that transformer to apply voltage to the dock that we need to use, which tells me the rest of the box works.
I am unable to do much during the day, as we cant have this dock down for longer than 20 min. All the work is getting done by.... 3rd shift maint staff....
Any advice I can give them, or at least some direction?
Gad
Although this is not PLC related, I believe some of you wizards might be able to point us in a direction as I have limited experiences with troubleshooting transformers.
Back Story: Forklift driver hit the dock plate control box, the door got tweeked, one of the push buttons got smashed and nothing would work.
We pounded the door and box back into shape and replaced the PB.
Upon powering back up, we had no 120v out of the transformer.
Got a new transformer, no 120v output.
We have 280v coming in on leg 1 and 2, leg 3 doesn't go to the transformer.
We do not have any output voltage.
We tried 3 different transformers, same results.
We are fortunate that there is a second box that runs another dock that we closed off.
We have "robbed" the 120v output from that transformer to apply voltage to the dock that we need to use, which tells me the rest of the box works.
I am unable to do much during the day, as we cant have this dock down for longer than 20 min. All the work is getting done by.... 3rd shift maint staff....
Any advice I can give them, or at least some direction?
Gad