Forums
New posts
Search forums
What's new
New posts
New media
New media comments
Latest activity
Media
New media
New comments
Search media
Members
Current visitors
Log in
Register
What's new
Search
Search
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Install the app
Install
Main Forums
Electrician Talk Forum
Rural transformer connections where 3-phase not available
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Help Support Talk Electrician Forum:
This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.
Message
<blockquote data-quote="Phoenix" data-source="post: 561176" data-attributes="member: 8133"><p>Never seen it, and I don't really think two phases 180 deg apart would be give much of an advantage over a standard single phase motor, plus no one is likely to produce much kit for 460v as the market is likely to be limited even if it was provided, the DDNO are probably allowed to take it away and replace with two phases from a 3ph system if they had to upgrade the network for another customer. Only ever seen it used for two lots of 230v loads to manage loading. I.e. your normal loads on one side, and night store heaters on the other, and if there is another farmhouse off the same Tx then that might be the same but using opposite sides of the supply.</p><p></p><p>Thankfully we seem to have less varying supply systems than the yanks, who generally take 240v split phase to domestic properties to give 120v legs for power and lighting and 240v for things like cookers, aircon, heating, EV charging, etc, but if you live in an apartment building they bring a three phase transformer in, and every apartment gets two phases, your line to neutral is still 120v, but line to line is only 208v. And lets not forget when they have a system with a transformer having 240v secondary windings delta connected, with the earth placed midway along one, so your L1/L3 are like your split phase domestic system, and you get 240v between any two lines, but L2 to neutral gets you 277v which they call the 'wild leg'</p><p></p><p>Thank **** I'm British!</p></blockquote><p></p>
[QUOTE="Phoenix, post: 561176, member: 8133"] Never seen it, and I don't really think two phases 180 deg apart would be give much of an advantage over a standard single phase motor, plus no one is likely to produce much kit for 460v as the market is likely to be limited even if it was provided, the DDNO are probably allowed to take it away and replace with two phases from a 3ph system if they had to upgrade the network for another customer. Only ever seen it used for two lots of 230v loads to manage loading. I.e. your normal loads on one side, and night store heaters on the other, and if there is another farmhouse off the same Tx then that might be the same but using opposite sides of the supply. Thankfully we seem to have less varying supply systems than the yanks, who generally take 240v split phase to domestic properties to give 120v legs for power and lighting and 240v for things like cookers, aircon, heating, EV charging, etc, but if you live in an apartment building they bring a three phase transformer in, and every apartment gets two phases, your line to neutral is still 120v, but line to line is only 208v. And lets not forget when they have a system with a transformer having 240v secondary windings delta connected, with the earth placed midway along one, so your L1/L3 are like your split phase domestic system, and you get 240v between any two lines, but L2 to neutral gets you 277v which they call the 'wild leg' Thank **** I'm British! [/QUOTE]
Insert quotes…
Verification
Post reply
Main Forums
Electrician Talk Forum
Rural transformer connections where 3-phase not available
Top
