polyphase system การใช้

• The Westinghouse Company displayed several polyphase systems.
• In a polyphase system, a fault may affect all phases equally which is a " symmetrical fault ".
• A polyphase system must provide a defined direction of phase rotation, so mirror image voltages do not count towards the phase order.
• It also has valuable information about the early history of AC and polyphase systems .-- Heron 22 : 08, 8 February 2006 ( UTC)
• It was designed to power the street lights in `
  ibenik, making it the first city in the world with street lights powered by a polyphase system of alternating current ( AC ).
• For two electrical systems to be synchronized, both systems must operate at the same frequency, and the phase angle between the systems must be zero ( and two polyphase systems must have the same phase sequence ).
• A "'rotary phase converter "', abbreviated "'RPC "', is an electrical machine that converts power from one polyphase system ( including frequency ) to another, converting through rotary motion.
• Tesla demonstrated a series of electrical effects at the Columbian Exposition under a banner announcing the " Tesla Polyphase System ", which had previously been performed throughout America and Europe; these included using high-voltage, high-frequency alternating current to light a wireless gas-discharge lamp.