METHOD FOR EXAMINING OPERATION STATE OF GAS INSULATION SWITCH

摘要

PURPOSE: A method for examining operation state of gas insulation switch is provided to prevent a switch from operating in error by measuring a mechanical property of a driving unit. CONSTITUTION: A first process defines an examination parameter and compares the examination parameter with a reference value to detect an operation error. A second process determines the reference value ultimately from a plurality of switch operation result. A third process measures an examination unit(8) which includes a converter for measuring a trip and closing coil exciting current and an examination algorithm for detecting an error in an output signal of a sub junction point. A fourth process examines an operation property of a switch in on-line or off-line.