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Thanks again Canoeboy. Regard the Star Delta starting: Why do you have three? Thats confused me slightly, as if the motor started in Delta, then after XX seconds switched over to Star, what is the third contactor needed for? The inverter question was just a thought I had to be honest, so no...

Brilliant, thanks for the replies again :) A few more questions I thought of though, if hopefully someone could help:  - Star Delta starters: Are these used on larger motors, and you would used a star delta starter to start the motor (due to torque?), then once it is running, it would switch...

Thanks for the diagram. So with my example, you would wire the motor in Delta, with 230v Live and Neutral, and put a capacitor over one of the windings.

No, never seen one. From that link I posted, it shows a name plate of a typical motor I see. Is that not saying it can be wired in Star or Delta? (I mean the way you configure the links across the 6 terminals) Thanks Thanks Canoeboy for the clarification :) I wouldn't know how to use a...

Please can someone help and explain wiring a 3 phase motor, as I can't really find anything in laymans terms. For example, a motor like this: http://www.electricneutron.com/wp-content/uploads/2011/04/nameplate-voltage.jpg If running through a contactor, I would wire it in Star If running...

Hi Guys, Just to update on this. I spoke to the company who installed our borehole (you were right :) ) and instantly they said it was running backwards! After some investigating, it turned out one of the shift techs had replaced 'a chatttering contactor' as he put it!! He obviously had...

Brilliant, thanks for the help guys, makes more sense now. The pump is 50m underground, and just has a 2" pipe attached to it, which feeds a tank. Quite simple, but not too accessible. Due to it not being used for a long time, it maybe is blocked on the suction side! Thanks :)

Yeah, I think we need to get the contractors in to lift the pump out. Out of interest, and for my education, why wouldn't the pump pull more current if it was blocked? I just presumed it would, and in my head it sort of makes sense, as the motor would be pushing against something which it...

Poni, If it was blocked though, surely the motor would pull more current?

Thanks for the replies. The pump use to pull 15A when it was installed, and gave a good flow (no measurements though). It hasn't been used for a few months, and now it is only pulling 10A, with very poor flow. I think you are correct saying some of the impellars may have become disconnected etc.

How and why would a motor pull less current than is stated on its name please? The motor is attached to a pump, which is underground and pumps water. The flow from underground/the pump is very poor, and is only pulling 10A instead of 15A. How is this possible? In my very limited experience...

Also, can you convert a TN-S distribution board to a TT system? If so, how?

Yes, it's for an electric car. I'm following the regs, and the new Code of Practise for Electric Vehicle Charging Equipment Installation. Just really querying how to guarentee a TN-S system won't change to a TN-C-S?

Hi, I am wanting to install a car charger at a place of work, which will be outside, approx 5m from the building. According to the IET Code of Practice, for the earthing system, it needs to be either TT or TN-S 'as long as it can be guaranteed that by the DNO that the TN-S system is TN-S back...

No, but I am going to purchase some, as every time I ask for advice anywhere, I always get told to follow legislation, and rarely get the advice I am looking for. Which I can fully appreciate I DO need to follow the standards & legislation, but no one can normally tell me what I actually...

Brilliant, thanks Canoeboy! Thanks for pointing out the 100mA switching, I would have missed that if I'm honest. All standards and RA's will be adhered to :) Thanks again

Brilliant, thank you so much. I will have a good look at it and that will definitely help me understand circuit better. I would normally use MCBs too, but have some fuse holders/fuses to use to keep costs down. Also, sorry for another question which is probably quite obvious, but the coils for...

Attached the data sheet. Apologise of the poor quality, but I had to reduce it to be able to upload it. Sensor1.pdf

Ok, I'll pop and get it :) Thank you.

Yes, but not with me now. In my first post I have posted the wiring for them. Bottom right shows PNP, with both Dark and Light wiring.