Canadian Equipment 575 Volt

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broadgage

Senior Member
Location
London, England
I doubt that there would be much need for such an odd selection of voltages.

3 phase 4 wire at 120/208 volts is in very common use in the USA.

In larger facilities it is common to use 3 phase, 4 wire at 277/480, with transformers to feed any 120 volt load.
575 volts could be produced from either of the above by a suitable transformer, and this might be done in special cases but would not be the norm.

575 volts could also be obtained from the MV utility system by a suitable transformer, but the transformer would probably be a special, at least in the USA.
 

GeorgeB

ElectroHydraulics engineer (retired)
Location
Greenville SC
Occupation
Retired
I's frum down south, suh, where we's kinda backwards ...

Textiles and brick manufacturing commonly used (and still use) "575" (called it 550 then) and stepped down around the facility (from 600) to the 208/120. Replacement transformers are not quickly available, but motors still pretty much are.

The nominal voltage things get confusing ... it helps to keep them together.
600/480/277/240/208/120
575/460/266/230/200/115 ... don't see 266 or 200 often.
 

augie47

Moderator
Staff member
Location
Tennessee
Occupation
State Electrical Inspector (Retired)
Like George, another southerner.... used to be common in this area when textile mills were more prevelant. 575 v shorts make nice fireworks.
 

masterinbama

Senior Member
Casting facilities (both iron and aluminum) will use 575 if they use induction furnaces. Installed quite a few 3000amp 575 volt feeders in a plant here several years back. Furnaces came with there own 2400 to to 575 transformers.
 
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