Hi,
I have taken over a design engineering job for industry.
The design is using a 400V/110V transformer. Usually, the 110V is single phase. However, in this case it is giving 110V 3 phase 32A.
The 110v 3 phase is for use with 4P 110V socket to run a pump.
Being in the UK, I am used to...
Iv been asked to wire a separator (portable to go to different farms and separate water from slurry) to a 3phase 40 kva generator. The separator has 3 motors 11hp, 5.5 hp and 3hp. The 11hp motor kept tripping the gennys mcb so a previous spark fitted an adaptable box with contactors so it now...
Hoping to get some info on 3 phase meters.
Family has a place out in the country. It needs to get the meter replaced, but seemingly it's a 3 phase meter.
Scottish Power has organised this but have cancelled the job as none are available.
So my question is, could the job not be done with an...
Hi all, I have two three phase sanding machines that both have there own contactor start up. Both work fine. I have connected a dust extractor to them both. That also has its own contactor start up ad works fine. Its also 3 phase. How can I wire the the extractor to be triggered by either...
Hi
Hope anyone can help
Can someone give me advice on how to connect up a 3 phase to 13amp adaptor lead for carrying out PAT testing on 3 phase equipment but using a 13amp port on the PAT tester. Need to know the connections for
4 pin 3phase & earth plug to 13amp plug
5 pin 3phase &...
I'll soon be installing a 45A 3 phase deep fat fryer at the school where I work. The run is approximately 7m from the DB, and the cables will be enclosed in empty trunking. What size cables will I need?
Does anyone know what size cable to use for a MCG type 2 SPD (3 phase) and what MCB.the manufacturers instructions don’t state any values!
also should i use 3 x single phase or a 3 phase MCB?
About to re sit testing section of am2. Am I required to test phase rotation at the incoming switch and also the 3 phase socket and motor. Just can't seem to find any clear instructions on what they expect on this test
Hi , I have a customer that has purchased a machine from Turkey. The machine requires 3 phase 330 volts at 50 hertz. I have access to 3 phase 460 at 60 hertz here at the plant in the US. I can find a transformer for the voltage but that doesn't change it from 60 hz to 50 hz. Im looking at 90...
My 3 phase cnc lathe is rated at 27 Amps on the manufacturers website.
When I mentioned that I want to run from a single phase via a rotary inverter I was told that it will need 27 A per phase therefore 3x27=81 Amps from my single phase. Is this correct? I reckon the machine is about 5hp.
Been asked to cost the running a number of motors . Was going two amp test each phase and multiple by line neutral voltage to get kWh . Is this correct .ta
Hi All
I’m in a bit of a quandary at work and need a couple of things clearing up if poss. I’m the maintenance manager/spark/fitter/skivvy/everything else that needs doing man 🙄 in a plastics factory and I’ve got to provide a supply for a new machine.
The current set up is a 90mm SWA protected...
Have any of yous fitted the proteus 4 way 3 phase DB? The horizontal one. The din rail I got with it was very narrow, only the top off of the RCBO clipped onto it. Anyone else had this?
I have some questions about 3 phase.
1. Does the neutral come in with the supply as standard?
2. As most 3 phase equipment doesn't require an N, what are the circumstances where you need one?
3. When we do need one, why do we need one?
4. Am i right in presuming therefore that we'd mostly use...
Hi guys,
We're starting a build in Queensland of an all electric house and will have some pretty large loads so we're hooking up a 3-phase supply. Some of the large loads include a 22kW 3 phase electric vehicle charger, 3 phase ducted A/C, heat pump pool heater, heat pump HWS, induction cooktop...
Evening everybody.
It’s been a while since I’ve asked for the collective brains advice but this one has really got me stumped.
I’ve been asked to install a twin outlet 22kW EV charger at an office. Unfortunately the office is an old doctors surgery (3 storey ex-house, basement , pitched roof...
I have retired from Solar installs and now finally looking to do my retirement project - Daimler V8 2.5.
I needed some powder coating done but the cost for a few small items was ridiculous so I got into the DIY side.
I found myself a 3 phase commercial steam oven (FINOX) which is massive so well...
A bit of an embarrassing question.
I have a regular customer who I enjoy working for. He has asked me to install an EV rapid charger for his avant loader (electric tractor type thing). I always turn down 3 phase jobs as I don't feel I understand it fully, but I'd like to do this job.
I believe...
Hi guys, if a 3 phase board is to be installed, with 250A mains. With 8 32A 3 phase sockets, 8 single phase 16A sockets, 2 light circuits and 3 phase 63A socket on it, that exceeds the 250A. I understand you would have to consider diversity factor etc into it but is that still too much or would...
Hi all,
This is a great forum, a big thank you to all those that made it possible,
I hope you good people can help me:
I have a 3 phase 10HP pump that I would like to turn on/off with a timer switch over a weekly program,
looking online I can not find much other than some Chinese device...
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