Abstract :
THE subject of power factor in THE subject of power factor in polyphase circuits has been the center of increasing discussion in recent years. No agreement has yet been reached upon a definition of the term as applied to polyphase circuits, nor even upon the underlying purpose which a definition should serve to express. In the absence of a practical commercial incentive to a universally accepted understanding as to the purpose and use of the term, little progress has been made toward such an understanding.