Hi, this might be an easy question, but i need to power a single phase motor situated about 300 meters away from my MCC. Do I just run 3 phases 415VAC cable to the motor in the field and just connect one live phase and the neutral to get the 240VAC? if that's the case then what do I need to do...
I may be seeking the holy grail here, but does anyone have any instant thoughts for a compact 3 phase distribution board that doesn't cost the earth?
I only need 1 outgoing 3 phase distribution circuit and 1 single phase final circuit, with an 100ma RCD main switch.
This is all outdoors with...
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...
Costumer have 12 flats and need to feed for each flat a prepaid meter and consumer unit within the flat , the main supply to building is three phase , my question is how to distribute the load for 12 flats, each flat have a load of 63A.
Main supply is three phase .
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...
evening all
ive got a single phase AC fan motor running normally however occasionally on start up it starts in reverse. i have 4 no fans, and this is happening to 2 occasionally. now these are in a fresh air chambers and i was starting to think that the airs blowing over the fans causing reverse...
Hi there, new to the forum and in final stages of completing C&G level 3; need to complete design project to complete. Am struggling to get my head around how to draw up correct circuit diagram showing EF Loop path for EV charger where initial supply is described as 'three phase TNCS' feeding to...
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...
Hi all, new to this thread and just looking for some views.
I have today attended a industrial unit which is being converted into small individual offices. An electrician has previously been here and has taken 3 individual sub mains from the existing three phase consumer unit to single consumer...
Hi, morning EF.
I was looking at a single phase motor yesterday attached to hydraulic pump for cardboard bailing machine that seems to be temerpemental with stop and starting and making humming sound.
I checked the contactor was working first and voltage was going to motor, I clamped the cable...
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 we have a split phase supply and had a EDMI ES-30B 3 phase meter fitted.
Our readings are extraordinarily high. It is an old farmhouse but there is just myself and my wife and we are using 29,565 kWh per year. 81 kWh per day. We just have an electric shower, electric cooker, appliance like...
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...
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...
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