00crashtest
Senior Member
- Location
- California
- Occupation
- electrician trainee
As a follow-up to the following thread, I am wondering whether the model Canadian Electrical Code, or any of the provincial legal codes based off of it, has any restrictions towards connecting the high-leg to the neutral to use for loads. If it does not restrict it, then it will be super useful in Japanese expat buildings for supplying the correct electrical qualities to equipment designed for use in Japan, especially the western half of Japan, including Nagoya, Kyoto, Osaka, Kobe, Hiroshima, Kitakyushu, and Fukuoka. Of course, if it is allowed, the loads utilizing the high-leg to neutral may not exceed a small proportion of the total load in order to keep the tranformer bank stable and within load capacity of each component.
From the following thread, I can also see that high-leg delta transformers have not been used in new installations in Canada for a while. That has been the case for many years, perhaps multiple decades. Obviously, the installation in this hypothetical case will have to use a transformer bank that has been customly designed because new high-leg deltas no longer exist in Canada. Furthermore, the size combination for each of the 3 individual transfomers will have to be custom in order to account for the highly custom load combination. In this special case, the high-leg to neutral voltage obvious WON'T be a "byproduct".
www.electriciantalk.com
Using High-Leg Delta for Japanese Appliances?
I was reading Electrical Wiring Commercial 17th Edition, which is based on the 2020 National Electrical Code, and page 284 said, The voltage between “B” and “N” is 208 volts. The “B” phase is called the high leg and cannot be used for lighting or other line-to-neutral purposes. However, I...
forums.mikeholt.com
From the following thread, I can also see that high-leg delta transformers have not been used in new installations in Canada for a while. That has been the case for many years, perhaps multiple decades. Obviously, the installation in this hypothetical case will have to use a transformer bank that has been customly designed because new high-leg deltas no longer exist in Canada. Furthermore, the size combination for each of the 3 individual transfomers will have to be custom in order to account for the highly custom load combination. In this special case, the high-leg to neutral voltage obvious WON'T be a "byproduct".
CEC - Are high leg deltas used in Canada?
www.electriciantalk.com
