100 amp 3 phase

[Zebbedee]

Quick question a 100 amp fused 3 phase supply assuming nothing else drawing power what is the biggest motor it would start and run on a compressor? Thanks

 

[jon9000]

That's a lot of power

 

[jon9000]

Guessing 60hp

 

[fiatagri10090dt]

Quick question a 100 amp fused 3 phase supply assuming nothing else drawing power what is the biggest motor it would start and run on a compressor? Thanks

I'd say about 35hp

 

[shumungus]

Amps to Kilowatts (kW) conversion calculator

Amps (A) to kilowatts (kW) conversion calculator.

www.rapidtables.com

 

[milkloss]

I'd say about 35hp

35hp works to about 45amps FL current. You’re going to have a start up of way over that but, provided you don’t make the neighbourhoods lights go dark, you might get away with it using a star-delta starter.

if you start flickering lights the network wont be impressed.

 

[Exfarmer]

If you are running a no load start compressor I think you should be easily able to run 40-45 hp
maybe more with a soft start system as well.
speak to the compressor makers as they will be the ones who are expert

 

[storming]

Should run your new drier fine ?

 

[upnortheast]

So you have 3 X 100 amp live cables ? or the total supply is 100 amp

 

[DanniAgro]

Amps to Kilowatts (kW) conversion calculator

Amps (A) to kilowatts (kW) conversion calculator.

www.rapidtables.com

If you use this useful table for your values (the power factor should be on the motor plate), then it should supply the max power. Trying it with a p.f. of 0.8 gave an answer of 55kW or 73 hp.

 

[milkloss]

If you use this useful table for your values (the power factor should be on the motor plate), then it should supply the max power. Trying it with a p.f. of 0.8 gave an answer of 55kW or 73 hp.

try getting that started on a 100amp fuse! Starting current could easily be 5x FL current

 

[fiatagri10090dt]

Quick question a 100 amp fused 3 phase supply assuming nothing else drawing power what is the biggest motor it would start and run on a compressor? Thanks

I'd say about 35hp

 

[fiatagri10090dt]

Quick question a 100 amp fused 3 phase supply assuming nothing else drawing power what is the biggest motor it would start and run on a compressor? Thanks

I'd say about 35hp

 

[Drillman]

We have a 80KVA genny running off a 100hp engine that load banked at 106 amps. Runa 12 ton batch drier with it. Would prob run a bigger one I reckon.

Dunno if that info is any help or has any relevance though.

 

[eagleye]

we have a 40hp drier fan which peaks at just over 125amps momentarily before falling back to about 50 (i think) star delta starter

 

[Zebbedee]

So you have 3 X 100 amp live cables ? or the total supply is 100 amp

Three x100amp I think but I must check actually on reflection I think it’s 100 amp on pole and 80 amp on my fuse board

 

[Richard98]

That reminds me of a story dad has often told from when he was in his teens, when they used to start up the old 3 phase grain driers (long since scrapped and replaced with a mobile drier) the lights used to flicker and go dull across the village?the electricity board then put a separate 3 phase line in just for the farm so only the farm’s lights went dull after that

 

[Exfarmer]

We had endless complaints from the local village about the tv reception going haywire when father used his welder in the evenings, before we had 3 phase put in. Of course they had put up with the problem for a year before anyone realised why the screen used to shrink.
Their issues were nothing, with half of North Bedfordshire screens disappearing, every time they started the wind tunnel up at Thurliegh

 

[Sharpy]

If @Zebbedee needs massive amounts of motor power would it not be possible to run 2 or 3 seperate smaller motors/machines and start them individually, thus lessening start up load, and would give a bit of redundancy for breakdowns or light use as well?

 

[storming]

Three x100amp I think but I must check actually on reflection I think it’s 100 amp on pole and 80 amp on my fuse board

Still plenty. ?. When you coming to see it ?