Operational director null of fuse for Cogeneration ration

摘要

PURPOSE: To enable high-speed protection by preventing the breakage of a shear pin provided for protection of the shaft of a generator. ;CONSTITUTION: The high-speed protection of a generator and load is materialized and the breakage of a shear pin is prevented by detecting the phase voltage and the phase current of a gas turbine generator as an independent power plant with PT7 and CT8, respectively, and operating the electric torque instantaneous value by a computing element 61, using these quantities, and operating the fuses 31 and 32 for cogeneration provided between a commercial power system and load and between the gas turbine generator 4 and load when these have get over set values.;COPYRIGHT: (C)1994,JPO&Japio