AUTOMATIC PRESSURE MAINTAINING DEVICE OF AN ENVIRONMENTALLY-FRIENDLY GAS INSULATED SWITCHGEAR, CAPABLE OF CONSTANTLY MAINTAINING GAS PRESSURE

摘要

PURPOSE: An automatic pressure maintaining device of an environmentally-friendly gas insulated switchgear is provided to improve an insulation property by including a controller to control the refilling of a gas.;CONSTITUTION: A plurality of gas supply lines supplies environmentally-friendly gas. A plurality of pressure detection signal lines detects pressure of each type of gas as an electric signal. A controller(203) controls the operation of a corresponding valve among a plurality of valves(205). A memory(303) stores the opening information of the valve. A control unit(301) produces leakage gas information and controls the corresponding valve.;COPYRIGHT KIPO 2013;[Reference numerals] (301) Control unit; (303) Memory; (305) Display unit; (AA) Gas insulated switchgear