A "three-phase system" is a polyphase system having three phases. The term "polyphase system" just means a system having multiple phases. If it is used by itself, "a polyphase system" doesn't mean "a three-phase system".
A "three-phase system" is a polyphase system having three phases. The term "polyphase system" just means a system having multiple phases. If it is used by itself, "a polyphase system" doesn't mean "a three-phase system".
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It is not true that another name for the "Y" or "wye-connected"
system of polyphase power is the "delta" system.
It's called the "star" system.
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Halfwave or fullwave or polyphase AC to DC?
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Polyphase is a general term that includes all electric power
systems using three or more phases.
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In 1934, the city of Philadelphia awarded him the John Scott
medal for his polyphase power system.