polyphase
po li fayz
- a of an electrical system that uses or generates two or more alternating voltages of the same frequency but differing in phase angle
- O'Neill credits him not only with inventing the polyphase alternating current generator and Tesla induction motor, which scientists generally have hailed as the basis of "our .
- Cooper Hewitt's favorite discovery was the transformation of polyphase alternating current to direct current through the mercury vapor transformer.