M
mtkt29
Hi, hope someone can help, we have had an electronic pump operated ramp put in a commercial garage. The supply is 3 phase and operates through an isolator. When the electrician installed the ramp we got power but within about 1 minute there was a bang and the transformer in the control panel had blow up!
The people who put the ramp in said that it was an electric error, but the electrician assures us it is perfectly fine. If i explain the set up could anyone give there expertise / views.
Machine needs three phase and neutral.
Firstly, a Hager three pole C32 breaker - coming out of that from top to bottom - red, yellow then blue and the black into the neutral terminal.
Secondly, this cable goes into an isolator (handle) type. The 3 phases into three terminals and the neutral into one off to the left.
Thirdly, a new cable from the bottom of the isolator (in the same terminals as the supply) going into the terminals in the control panel of the new machine.
These cables go red into L1, yellow L3, blue L5 and the neutral in N terminal. (Would this matter what terminals each phase goes into?).
Does this setup sound okay? Whent the transformer blew the breaker did not trip. My feelings are that the setup looks good and would take longer to blow the transformer if there was a wiring issue / or they would be no power at all???
Thanks if anyone can help.
The people who put the ramp in said that it was an electric error, but the electrician assures us it is perfectly fine. If i explain the set up could anyone give there expertise / views.
Machine needs three phase and neutral.
Firstly, a Hager three pole C32 breaker - coming out of that from top to bottom - red, yellow then blue and the black into the neutral terminal.
Secondly, this cable goes into an isolator (handle) type. The 3 phases into three terminals and the neutral into one off to the left.
Thirdly, a new cable from the bottom of the isolator (in the same terminals as the supply) going into the terminals in the control panel of the new machine.
These cables go red into L1, yellow L3, blue L5 and the neutral in N terminal. (Would this matter what terminals each phase goes into?).
Does this setup sound okay? Whent the transformer blew the breaker did not trip. My feelings are that the setup looks good and would take longer to blow the transformer if there was a wiring issue / or they would be no power at all???
Thanks if anyone can help.