| 摘要 |
<p>PURPOSE:To prevent a major accident such as a flashover accident even when an operator having no experience and expertise conducts erroneous operation when the operator performs the gas recovery operation of a gas insulated equipment. CONSTITUTION:The conditions of circuits of a gas insulated equipment, the presence or absence of voltage or the pressure and density levels of a sealed gas are monitored by monitor means GM1-GM4. When constant conditions preset to the monitor means are satisfied, the contacts GM1-GM4 are operated, and a power supply P for maintenance and inspection is turned off or on automatically. To be specific, plug sockets IL1-IL4 for the power supply are set up to a circuit control board LCP, and a gas treatment equipment such as a gas recovery device is connected to the plug sockets. When the working conditions of the gas insulated equipment are not good, the power supply P for maintenance and inspection is interrupted automatically in general.</p> |
