Hi,

Can I connect two 5 hp pumps or even one 5 hp water ( pool) pumps to residential property (home).
What do I need to do or get to do it ?


Regards

Zahid

 

Where are you located, country etc.?
That will require quite a supply amperage, and should be on a 24ov service, minimum.
Are they to run simultaneously?
Max.

 

I am located in UK.
The two pumps will run simultaneously.
The project I want to build is an endless pool.
see attached screenshot.

Best Regards

 

Isn't there two things you would need to know for this? HP and voltage on the motor and GPM on the pump?
Brzrkr

 

5 HP pump
230 volts main UK electricity
1000 gallons per minute.

 

You will need two 20amp circuits.
Consult you local electrician, I have been away from UK for some time so I don't know if you can get a owners permit and get it inspected, at least if you are capable of the installation.
Max.

 

Depending on the pump motor efficiency you can roughly figure at 230 volts, a single-phase motor draws approximately 5 amps per horsepower. My guess exceeds that of Max by a little but close enough. Yes, you want two circuits and as Max points out this is best left to an electrician. I am unfamiliar with UK codes as to the use of GFCI (Ground Fault Circuit Interrupt). I also have no idea what residental housing current limitations are in the UK. A 5 HP pump is a heck of a pump for residential use in the US.

Ron

 

I'm certainly not skilled to do the electrical circuitry.
I wanted to know or my concern is if I start the project and didn't want to find out I needed commercial supply and this is not residential home project.

 

I could be a bit light on the current as Ron said.
Also AFAIK most residences have a main RCD for a main breaker, which may be exceeded.
In some cases, UK will bring in 3 phases for large residential loads, they did for me once.
In some instances they will demand it.
Max.

 

My answer to your question would be you can hook as many things in your box as you want as long as you have room in it. Ample breakers on the circuits, a big enough backyard and the guts to tackle 1000 GPM coming at you. "The video" I watched about 10 minutes of it and he has some good pointers.
Brzrkr

 

That's great thank you.

 

That's great thank you.

Back in the 60's I installed some off-peak storage heaters in a residence, this is where the service company required the 3phase for them.
Max.

 

That's pretty cool in that in the UK you can likely get 3 phase service easier than in the US which if running a few 5 HP pumps would be a big plus. Here in the US getting three phase service is not all that easy for a home residence.

Ron

 

My answer to your question would be you can hook as many things in your box as you want as long as you have room in it. Ample breakers on the circuits, a big enough backyard and the guts to tackle 1000 GPM coming at you. "The video" I watched about 10 minutes of it and he has some good pointers.
Brzrkr

I don't see that happening. My home, an older home was originally setup with 60 Amp service. Matter of fact all knob and tube wiring. Over the years as we ripped out and replaced walls and ceilings over two floors I removed it all and also installed a 200 Amp service panel. Then the conduit riser to the weather head cannot exceed 40% fill with the conductors and the weather head must be capable of supporting three #2 AWG copper or three #1/0 aluminum or copper clad aluminum conductors. Here in the US the weather head is the customer responsibility. Next you need a meter enclosure for a meter which supports the service, the the enclosure is also customer responsibility. The service provider provides only the meter which is also rated for the service.

Once everything is in place and inspected to be correct and in compliance the power company comes out and replaces the feed lines with lines rated for the service. The fact that I can install a 200 amp service panel allowing for 40 or 80 branch circuits means nothing unless the delivery service is moved up to 200 amp service. Things are not quite that simple. There is much more to all of this than putting a few dual breakers in a panel and calling it good to go.

Ron

 

That's pretty cool in that in the UK you can likely get 3 phase service easier than in the US which if running a few 5 HP pumps would be a big plus. Here in the US getting three phase service is not all that easy for a home residence.
Ron

Yes the UK distribution is via a 3ph transformer and a star neutral, with every so many residences on one phase.
So it makes it a little easier to obtain 3phase.
Max.

 

Yes the UK distribution is via a 3ph transformer and a star neutral, with every so many residences on one phase.
So it makes it a little easier to obtain 3phase.
Max.

Actually I happen to have a few three phase lines on my street. Same deal as every so many houses a transformer off a different phase. I am guessing since I really don't know but the lower 3 phase is 7 KV and the higher lines. Looking at the insulators, I put at 25 KV. The problem comes in when getting it to a residence because they need to add a transformer (or three transformers) to drop all three phases for a single residence. They bill you for that. This is a bummer if the area only has one single phase high voltage feed. The lines on my street are an exception to the norm around here too.

Ron

 

5HP is not so much 1HP = 750 W so 5 HP = 3.75Kw ..........10 HP = 7.5Kw

This instant domestic water heater is 8.5Kw installed in many UK homes for showers ... single phase ...An electric cooker will take more power ...

I would try one pump first , if not enough you can always get another ..

 

I hear that 3-phase residential is possible in some areas in the US, but not likely.

I think in my area, the meter socket can be anybodies, but they can be bought locally and would have the power companies "sticker" or whatever on it.

 

Half the posts on this thread talking about 3 phase ....ridiculous !

This could be justified in the US where the power supply is a wimpy 110 V ... you need double the current for the same power ...

Over in the UK men are men ...fearless ....240V running around our houses , so we only need half the current the US does for the same power ...
TS lives in the UK

No need for 3 Phase !!!

 

Half the posts on this thread talking about 3 phase ....ridiculous !
No need for 3 Phase !!!

The OP is located in UK, why mention US??
As I already mentioned, in some older jurisdictions the service Co. does not like the unbalance of the supply transformer, a long time ago, but these may still exist.
BTW, N.A. is also 240v residential as well as 120v!
Max.