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Phasing, or the number of phases in an electrical system has nothing to do with the voltage. A single phase and three phase supply could have a voltage supply of any given voltage from virtually 0 to infinity. Most single phase power supplies in the US are 120/208-240 volt. Three phase power supplies are typically 120/208 to 277/480 volt.

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βˆ™ 14y ago
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βˆ™ 15y ago

A single phase meter base takes a 5 jaw watt meter and a three phase meter base takes a 7 jaw watt meter.

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βˆ™ 12y ago

A single phase meter base takes a 5 jaw watt meter and a three phase meter base takes a 7 jaw watt meter.

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Q: What is the difference between single phase and three phase voltage measurement?
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