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spudd

  • Posts: 380
Generator
« on: April 29, 2020, 01:29:43 pm »
After guys hope everyone’s keeping safe and well.

What’s everyone’s go to generator for there gutter vacs?

I’m after a compact generator to power a 3000w vac but want the smallest one possible as we all no what a pig it is shifting a vac a genny around properties.

Smudger

  • Posts: 13438
Re: Generator
« Reply #1 on: April 29, 2020, 03:36:02 pm »
Needs to be 6kva - at that power they are all on the heavy side

Stephill are first class - had mine (6.5kva) 10 years with only a capacitor needing replacement

Kgs genny's are a lot cheaper but are a bit heavier I have an 8 kva from them, again no problems and that's 3 years old

Darran
Never argue with an idiot, they will only bring you down to their level, and beat you with experience

Spruce

  • Posts: 8462
Re: Generator
« Reply #2 on: April 29, 2020, 04:16:31 pm »
After guys hope everyone’s keeping safe and well.

What’s everyone’s go to generator for there gutter vacs?

I’m after a compact generator to power a 3000w vac but want the smallest one possible as we all no what a pig it is shifting a vac a genny around properties.

http://www.cleanitup.co.uk/smf/index.php?topic=214245.msg1930656#msg1930656

As you could well know its the starting demand that determines the size of the gen set.  A 3000 watt vacuum can have 2 x 1500 watt motors or 3 x 1000 watt motors. Starting them slowly one at a time effects the gen set size required.

As Darran says, you need a 6kva gen set.

Back in the days we used to sell a 5.5kva gen set to drive a 2800 watt concrete paving breaker.

I have a small 1500w gutter vac. I asked the supplier to advise a size of gen set for this. The manufacturer did numerous start tests, the highest peak draw was 5.2kva.

There was a supplier who used a 1400 watt vacuum cleaner and suggested he used a 2kva gen set to power it. This goes against the rule of thumb in the industry that starting a vacuum cleaner motor takes around 3 times the running current.
Success is 1% inspiration, 98% perspiration and 2% attention to detail!

The older I get, the better I was ;)

P @ F

  • Posts: 6319
Re: Generator
« Reply #3 on: April 29, 2020, 09:11:24 pm »
I have a 1400w vac too , I was aware of the rule that Spruce speaks of , I went round a few hire shops with my vac to blag a gennie test before I bought one  ;D
I ended up having to buy a 2.8 kva Clarke from machine mart
I'm so lazy I'm getting tired of it !

AuRavelling79

  • Posts: 25392
Re: Generator
« Reply #4 on: April 29, 2020, 10:50:11 pm »
Blimey! I bought a 2Kv genny from Aldi six years ago for £185 and have run a 1400w gutter vac from it ever since.

No one told me it wouldn't work! 🤣
It's a game of three halves!

Splash & dash

  • Posts: 4364
Re: Generator
« Reply #5 on: April 29, 2020, 11:00:32 pm »
Why not look at the skyvac intercepter Honda engine no gennie or electric needed they are an awesome bit of kit and weight is less than a genie  , best bit of kit I have bought in a long time .

Spruce

  • Posts: 8462
Re: Generator
« Reply #6 on: April 30, 2020, 08:32:38 am »
I have a 1400w vac too , I was aware of the rule that Spruce speaks of , I went round a few hire shops with my vac to blag a gennie test before I bought one  ;D
I ended up having to buy a 2.8 kva Clarke from machine mart

They fit soft start to Bosch heavy duty 230v, 2400 watt 9" angle grinders in South Africa according to one of my colleagues I still keep in touch with. I have an old 9" 2200 watt grinder and it often trips the 20 amp trip switch in the garage.

The soft start is apparently integrated into the switch. I did at one time think about this as it would mean a smaller generator set. Then there is the option of adding starter capacitors but that is out of my field of expertise.
Success is 1% inspiration, 98% perspiration and 2% attention to detail!

The older I get, the better I was ;)

Spruce

  • Posts: 8462
Re: Generator
« Reply #7 on: April 30, 2020, 08:34:21 am »
Blimey! I bought a 2Kv genny from Aldi six years ago for £185 and have run a 1400w gutter vac from it ever since.

No one told me it wouldn't work! 🤣

Nick Day used to use a 2kva generator set on the 1400 watt gutter vacs he used to sell.
Success is 1% inspiration, 98% perspiration and 2% attention to detail!

The older I get, the better I was ;)