Jump to content

Log in or register to remove this advert

32A to 16A 3 phase question


Dilz
 Share

Recommended Posts

Recently started hiring a bit of land. Have access to electricity via a 32A 3 phase outlet.  Got a mill and a splitter that have 16A sockets. 

 

Is it fine to just use a simple adapter to go from the 32A to the 16A sized connector or does the 16A adapter need its own fuse / circuit breaker?  

 

 

 

 

Link to comment
Share on other sites

Log in or register to remove this advert

If it's professionally installed it should be a 32a trip but also check which type of breaker is fitted, Type B, C or D.

 

C or D are better for welders and large electric motors unless fitted with soft starters as they pull a absolutely scary amount on startup.

Edited by GarethM
  • Like 1
Link to comment
Share on other sites

4 hours ago, Dilz said:

I would hazard a guess that yes they do.  

 

Im going to check with the owner and get access  to the main building and check what fuse box he has running on the outlet.  

 

 

Count the pins in the sockets. 3 phase and earth has 4 pins, and the 3 phase neutral and earth has 5 pins.

 

Next problem is phase rotation. Hopefully the machines have the plugs on them?? Hopefully, the supply they were used on had the same direction of phase rotation too. If not, you might find they run backwards. Might be better disconnecting the drive and making sure the motors run the right way as some equipment could be damaged if it runs the wrong way.

 

Only other thing would be a phase rotation meter that has the facility to test a dead motor [you turn it by hand] for lead identification [as mine does]

 

john..

Link to comment
Share on other sites

4 hours ago, GarethM said:

If it's professionally installed it should be a 32a trip but also check which type of breaker is fitted, Type B, C or D.

 

C or D are better for welders and large electric motors unless fitted with soft starters as they pull a absolutely scary amount on startup.

True, but you cannot just swap them without checking the EFLI is low enough so probably stuck with what is there..

john..

Link to comment
Share on other sites

If you're running on a 16a plug get phasenwender, they have a screwdriver turn on pins 2 & 3 allowing phase change without rewiring the plug.

 

I did have a thing of fitting phase rotation relays to equipment with a red lamp interrupt circuit.

 

So it turns on when ok but red lamp when attention needed.

Edited by GarethM
  • Like 2
Link to comment
Share on other sites

14 hours ago, GarethM said:

If you're running on a 16a plug get phasenwender, they have a screwdriver turn on pins 2 & 3 allowing phase change without rewiring the plug.

 

I did have a thing of fitting phase rotation relays to equipment with a red lamp interrupt circuit.

 

So it turns on when ok but red lamp when attention needed.

 

That is clever! So if the phase rotation was wrong the machine will not start and a light comes on??

john..

  • Like 1
Link to comment
Share on other sites

1 minute ago, john87 said:

That is clever! So if the phase rotation was wrong the machine will not start and a light comes on??

john..

Yeap, it made life easier than explaining 3 phase to people.

 

We had a green light in the on/off switch mechanism too, so it was either green for go or red for no!.

  • Like 3
Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share


  •  

  • Featured Adverts

About

Arbtalk.co.uk is a hub for the arboriculture industry in the UK.  
If you're just starting out and you need business, equipment, tech or training support you're in the right place.  If you've done it, made it, got a van load of oily t-shirts and have decided to give something back by sharing your knowledge or wisdom,  then you're welcome too.
If you would like to contribute to making this industry more effective and safe then welcome.
Just like a living tree, it'll always be a work in progress.
Please have a look around, sign up, share and contribute the best you have.

See you inside.

The Arbtalk Team

Follow us

Articles

×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.