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Furukawa Group (古河グループ, Furukawa Gurūpu) formerly Furukawa zaibatsu (古河財閥) is one of Japan's 15 largest industrial groups. Its origins date back to 1875, founder Furukawa Ichibei .
Superior Essex is the parent brand of Essex Furukawa Magnet Wire, Superior Essex Communications, and Essex Brownell. It has over 3,000 employees in 11 countries. Essex is among the leading [4] global manufacturers of magnet wire. [5]
A circuit breaker is an electrical safety device designed to protect an electrical circuit from damage caused by current in excess of that which the equipment can safely carry (overcurrent). Its basic function is to interrupt current flow to protect equipment and to prevent fire.
Breakers are often referred to as "hammers", "peckers", "hoe rams" or "hoe rammers". These terms are popular and commonly used amongst construction / demolition workers. [ 1 ] [ 2 ] The first hydraulic breaker, Hydraulikhammer HM 400, was invented in 1967 by German company Krupp (today German company Atlas Copco ) in Essen .
Automatically closing the breaker after it has tripped and stayed open for a brief amount of time, usually after 1 to 5 seconds, is a standard procedure. [ 5 ] Reclosers are often used as a key component in a smart grid , as they are effectively computer controlled switchgear which can be remotely operated and interrogated using supervisory ...
Furukawa Electric aids CERN's experiments on the search for the Higgs boson with its superconducting magnet wires. [6] The company's products also include superconductivity cables. As of July 2013 the company has 137 subsidiaries and affiliate companies across Japan, Europe, North and South America. [7] Furukawa Electric advertisement in 1930s
A rupture disc (burst) Pressure-effect acting at a rupture disc A rupture disc, also known as a pressure safety disc, burst disc, bursting disc, or burst diaphragm, is a non-reclosing pressure relief safety device that, in most uses, protects a pressure vessel, equipment or system from overpressurization or potentially damaging vacuum conditions.
Sulfur hexafluoride circuit breakers protect electrical power stations and distribution systems by interrupting electric currents, when tripped by a protective relay. Instead of oil, air, or a vacuum, a sulfur hexafluoride circuit breaker uses sulfur hexafluoride (SF 6 ) gas to cool and quench the arc on opening a circuit.