I have a 3 phase element for a steam generator but the element is a 220 volt element. the diagram is in Chinese which i cant read. on the diagram it shows three phase delta connection for 380v and three phase star connection for 220 volt with a neutral connected to the star point. My question is can I connect the three phase as is to the element meaning there will be 230v phase to neutral and 400 phase to phase or does the voltage need to be stepped down to 110 volt phase to neutral and 230 volt phase to phase ?
-
Please checkout our new DIY Forum, and any trade that'd like to join and help out, and Contractor Talk Forum.
- Thread starter Brandyne
- Start date
- Replies 7
- Views 2K
Discuss 220 volt, three phase element in the UK Electrical Forum area at ElectriciansForums.net
![[ElectriciansForums.net] 220 volt, three phase element](https://electricians.s3.eu-west-1.amazonaws.com/data/attachments/67/67867-30c4a25deba80b75bef51fd557f721c4.jpg)
I don't read Chinese either but my initial reaction is that the text showing the alternative element configurations says something like 'for 220V elements connect in star' and 'for 380V elements connect in delta' and that in both cases the supply is taken to be 220/380. You could check the voltage of the control components which would be 220V as they are connected L-N without a transformer.
If the options were for different supplies using the same elements, the voltages on the sketches would be the other way round, i.e. for 380V supply connect in star and for 220V supply connect in delta, but then there would be some provision for adjusting the control supply like a 0-220-380V transformer.
On 400V the element output will be increased by 10% and on 415 by 20%. Normally 380V equipment is OK up to 415 but if it's not conservatively designed it can get a bit warm.
There are online OCR translators that can process images of Chinese text reasonably well, but usually need to be signed up for.
If the options were for different supplies using the same elements, the voltages on the sketches would be the other way round, i.e. for 380V supply connect in star and for 220V supply connect in delta, but then there would be some provision for adjusting the control supply like a 0-220-380V transformer.
On 400V the element output will be increased by 10% and on 415 by 20%. Normally 380V equipment is OK up to 415 but if it's not conservatively designed it can get a bit warm.
There are online OCR translators that can process images of Chinese text reasonably well, but usually need to be signed up for.
![[ElectriciansForums.net] 220 volt, three phase element](https://electricians.s3.eu-west-1.amazonaws.com/data/attachments/67/67873-ed4e06a570071d7cd938408949131ff9.jpg "[ElectriciansForums.net] 220 volt, three phase element")
![[ElectriciansForums.net] 220 volt, three phase element](https://electricians.s3.eu-west-1.amazonaws.com/data/attachments/67/67875-3426a41065994d5bf64ebd1940b7bcb3.jpg "[ElectriciansForums.net] 220 volt, three phase element")
Top line of the drawing, it can even convert the image translation into English text
![[ElectriciansForums.net] 220 volt, three phase element](https://electricians.s3.eu-west-1.amazonaws.com/data/attachments/67/67876-cfcf131b36bfb8d1179e9328f677a6a3.jpg "[ElectriciansForums.net] 220 volt, three phase element")
![[ElectriciansForums.net] 220 volt, three phase element](https://electricians.s3.eu-west-1.amazonaws.com/data/attachments/67/67877-2b1afd8d28d95a07711201fccfec55e8.jpg "[ElectriciansForums.net] 220 volt, three phase element")
Coverted to text from picture,
Fully automatic electric heating steam generator three-phase (four-wire) power type wiring diagram
Coverted to text from picture,
Fully automatic electric heating steam generator three-phase (four-wire) power type wiring diagram
yes its got me a bit confused as it seems to be opposite to electric motors which ive always had to connect in delta with a 230V supply and star with a 400V supply... my concern is whether each coil will have 230V across it with the neutral in place or if it will be 400V
Yes the crux appears to be this dwg tells you how to use two types of element with different voltage ratings on the same supply, but with motors it's usually telling you how to use the same motor on two different supply voltages. Anything connected L-N will see 230V on a 400/230V system.
Reply to 220 volt, three phase element in the UK Electrical Forum area at ElectriciansForums.net
Similar Threads
Hi, Thanks for that, you learn something new almost every day!
Regards Griffey
300W is 300W regardless of the voltage. The lower the voltage, the higher the current, but same power consumption overall.
You can clamp meter...
- shortcircuitbob
- The Welcome Forum
- 12
- 2K
- Question
Ok Dave thanks, no more accidents yet 🙏😂….
I have sent you my contact details
where in the West Midlands are you?
I am based north of coventry but travel the county and beyond
you may...
- xpistos
- Commercial Electrical Advice
- 3
- 964
- Question
As per @pc1966 the faults from L1 and L3 to ground should appear in series as a fault L1-L3. The measured resistance L1-L3 might not be exactly...
- SoonIWill
- UK Electrical Forum
- 2
- 1K
OFFICIAL SPONSORS
These Official Forum Sponsors May Provide Discounts to Regular Forum Members - If you would like to sponsor us then CLICK HERE and post a thread with who you are, and we'll send you some stats etc
YOUR Unread Posts
-
NEFF C17MR02 Oven tripping RCDMaybe also check the fan motor before you take the element out! They tend to have exposed...- Latest: Avo Mk8
-
new pully-switch to turn on my shower but the Electrician said it would be against company policyBy the regulations, this comes under repair and maintenance, so the addition of an rcd is not...- Latest: littlespark
-
What pets do you have, and what pets have you had?So sorry mate. Maybe not in your thoughts yet, but any food, even open bags… unused bedding...
- Latest: littlespark
This website was designed, optimised and is hosted by untold.media Operating under the name Untold Media since 2001.