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347V in Canada Used For 3 Phase Or One Phase?

03/28/2017 6:55 AM

We are a manufacturer of electronic ballast in China, recently got some inquiries of 347V ballast for Canadian greenhouse. Does anyone know this 347V ballast is going to run with 3 phase, 2 phase or 1 phase electricity? Thanks.

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#1

Re: 347V in Canada used for 3 phase or one phase?

03/28/2017 8:47 AM

Why not ask the greenhouse people who inquired?

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#9
In reply to #1

Re: 347V in Canada used for 3 phase or one phase?

03/28/2017 11:52 PM

Our factory sell to distributors, not the greenhouse people. But asked an contractor, it used for 3 phase. thanks.

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#2

Re: 347V in Canada used for 3 phase or one phase?

03/28/2017 8:58 AM

We've built some process machinery here to go to Canada and those units ran on 600VAC three phase. So, based on that and the square root of 3, the single phase voltage would be about 347VAC. I wasn't aware of availability of a neutral with this voltage. I assumed they only provided three phase at this voltage. Hey - any Canadians on line?

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#10
In reply to #2

Re: 347V in Canada used for 3 phase or one phase?

03/28/2017 11:53 PM

Thank you, we got the answer, for 3 phase.

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#3

Re: 347V in Canada used for 3 phase or one phase?

03/28/2017 9:30 AM

Yes, Canadian commercial voltage is 600Y347. So the 347 is the single phase line to neutral voltage. Pretty much the only thing it is used for is lighting.

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#4
In reply to #3

Re: 347V in Canada used for 3 phase or one phase?

03/28/2017 9:34 AM

Okay so you're not Canadian, but that definitely answers the question. I didn't know if it was a Y or a delta.

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#7
In reply to #4

Re: 347V in Canada used for 3 phase or one phase?

03/28/2017 10:17 PM

I did a lot of work in Alberta and BC. In places like lumber mills, so many of them were bought at auctions in the US as our lumber industry died, that 480V is now very common. But anything built new is 600Y347 (unless they are matching existing old US stuff).

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#12
In reply to #7

Re: 347V in Canada used for 3 phase or one phase?

03/29/2017 8:30 AM

Wrong end of Canada. We build process skids for Ontario and Quebec. There is 600V here too. They've never asked for a provision for a neutral on any of them, that is why I was a bit surprised. Of course, there aren't too many 347V devices in a control panel, so why would they.

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#5

Re: 347V in Canada Used For 3 Phase Or One Phase?

03/28/2017 12:51 PM

The person making the enquiry probably does.

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#6

Re: 347V in Canada Used For 3 Phase Or One Phase?

03/28/2017 5:57 PM

277 is the single leg and neutral from the 3 phase 480.
And 347 is the single leg and neutral from the 3 phase 600.

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#8

Re: 347V in Canada Used For 3 Phase Or One Phase?

03/28/2017 10:39 PM

Why not contact an American manufacturer of electronic ballasts.

When you provide them with the contact name in Canada,

They can then advise you on the solution to your question.

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#11

Re: 347V in Canada Used For 3 Phase Or One Phase?

03/29/2017 8:13 AM

One phase.

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#13

Re: 347V in Canada Used For 3 Phase Or One Phase?

03/29/2017 11:07 AM

What you really want to ask is if the ballasts will be connected phase to phase or line to neutral,

and more importantly, if power system will be solidly grounded, resistance grounded, or ungrounded, to determine if your insulation capability exceeds the normal and upset operating conditions....

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