List of used 3-phase voltages from 400V - 2400V
- Thread starter jtrezon
- Start date
- Status
- Location
- San Francisco Bay Area, CA, USA
- Occupation
- Electrical Engineer
For what purpose?
For industrial use in un UK it is usually 400V, 3.3kV, 6.6kV, and 11kV.
I have seen equipment like arc furnaces that are fed from the grid at 132kV.
It is becoming increasingly common to use 690V for larger variable speed drives but it isn't a standard voltage and usually has to be derived locally.
robbietan
Senior Member
- Location
- Antipolo City
transformers commonly provided by the poco here have a 34.5 kV wye primary and a delta secondary at 480V. the taps of the transformer can accomodate a +/- 12% bandwith, which can cover voltages of 440 and 460 V
other service voltages available are 400V, 115kV, 13.8 kV (line to line) and 69kV in very few areas
broadgage
Senior Member
- Location
- London, England
The uncommon UK voltage of 690 reffered to above is sometimes used for large scale lighting.
The larger HID ballasts are designed for 400 volts nominal and normally connected between phases of a 230/400 volt system. They may also be used between phase and neutral on a 400/690 volt system.
Railway signalling power is sometimes distributed at 660 or 690 volts and transformed down to 24 or 110 volts at the point of use.
The larger HID ballasts are designed for 400 volts nominal and normally connected between phases of a 230/400 volt system. They may also be used between phase and neutral on a 400/690 volt system.
Railway signalling power is sometimes distributed at 660 or 690 volts and transformed down to 24 or 110 volts at the point of use.
zog
Senior Member
- Location
- Charlotte, NC
For where? It will vary from country to country and utility to utility.
Clarification....
Clarification....
Researching for a facility that will assemble and test generators. Because they ciuld end up anywhere in the world, I am looking for all know industrial applications, 3-ph, 400V to 2.4kV only. Anyone know of any others?
400V
415V
440V
460V
480V
500V
550V
575V
600V
690V
?
?
?
2.4kV
Clarification....
Researching for a facility that will assemble and test generators. Because they ciuld end up anywhere in the world, I am looking for all know industrial applications, 3-ph, 400V to 2.4kV only. Anyone know of any others?
400V
415V
440V
460V
480V
500V
550V
575V
600V
690V
?
?
?
2.4kV
- Location
- San Francisco Bay Area, CA, USA
- Occupation
- Electrical Engineer
Before you expend resources for all of these different voltages, you need to investigate the differences between "Utilization Voltage" and "Distribution / Generation Voltage". Basically Utiliz. Voltage is what motors and other equipment is built to, Dist. / Gen. Voltage is what utilities supply. The reason for the difference is to accommodate voltage drop at the point of use. So for example in the US, 480V is what is distributed, 460V is what the motors are designed for.
- Status