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A fault current limiter (FCL), also known as fault current controller (FCC), [1] is a device which limits the prospective fault current when a fault occurs (e.g. in a power transmission network) without complete disconnection. The term includes superconducting, solid-state and inductive devices. [2]
Category for standard protection devices fitted to commercial or domestic electrical supplies, to monitor leakages to earth, which cause a subsequent over-current Pages in category "Over-current protection devices"
An inrush current limiter is a device or devices combination used to limit inrush current. Passive resistive components such as resistors (with power dissipation drawback), or negative temperature coefficient (NTC) thermistors are simple options while the positive one (PTC) is used to limit max current afterward as the circuit has been operating (with cool-down time drawback on both).
Earth fault protection also requires current transformers and senses an imbalance in a three-phase circuit. Normally the three phase currents are in balance, i.e. roughly equal in magnitude. If one or two phases become connected to earth via a low impedance path, their magnitudes will increase dramatically, as will current imbalance.
Current limiting reactors, once called current limiting reactance coils, were first presented in 1915. [2] The inventor of the current limiting reactance coil was Vern E. Alden who filed the patent on November 20, 1917 with an issue date of September 11, 1923. The original assignee was Westinghouse Electric & Manufacturing Company. [3]
The Fort Hancock Port of Entry is a U.S. Customs and Border Protection port of entry located on the U.S. side of the Fort Hancock–El Porvenir International Bridge along the U.S.–Mexico border. It was established when the original bridge was built by the International Boundary and Water Commission in 1936. [1]
Republican Florida Gov. Ron DeSantis said Thursday he plans to send 1,000 National and State guard members to Texas “relatively shortly” to help place razor wire along the U.S.-Mexico border ...
The Roosevelt Reservation is the 60-foot (18 m)-wide strip of land owned by the United States Federal Government along the United States side of the United States–Mexico Border in three of the four border states. Federal and tribal lands make up 632 miles (1,017 km), or approximately 33 percent, of the nearly 2,000 miles (3,200 km) total.