Patent ID: 9279858
Filing Date: 2016-03-08
CPC Classification: G01R,H02B

Claim Text:
1. A cubicle type gas insulated switchgear monitoring and diagnosis system comprising: a breaking unit having a space in which a circuit breaker is enclosed and an insulation gas is filled; a driving unit, attached to the breaking unit, configured to drive the breaking unit; a bushing bar unit, electrically connected with the circuit breaker, in which the insulation gas is filled; a gas duct comprising a passage through which a hot gas is discharged, the hot gas being generated by arc; a plurality of gas pressure sensors, disposed in the breaking unit and the bushing bar unit, configured to measure a gas pressure; a partial discharge sensor, disposed at one end of the gas duct, configured to measure a partial electric discharge; a coil pressure sensor, disposed at the breaking unit, configured to evaluate an operation state and to assess an integrity of the breaking unit and to measure and to assess an integrity of a driving coil; a stroke sensor, disposed at a driving unit of the breaking unit, configured to measure a position of a stroke bar; an S-DAS (Slave Data Acquisition System), one-to-one correspondence with the cubicle type gas insulated switchgear, and electrically connected with the gas pressure sensors, the coil pressure sensor, the partial discharge sensor, and the stroke sensor, the S-DAS configured to provide sensing data as digital data, the sensing data transmitted from the plurality of gas pressure sensors and the partial discharge sensor and to analyze and record the sensing data from the coil pressure sensor and the stroke sensor; and an M-DAS (Master Data Acquisition System) configured to determine deterioration of the cubicle type gas insulated switchgear and to evaluate the operation state and to assess an integrity of the breaking unit, by receiving and analyzing the sensing data from the S-DAS, the M-DAS further configured to analyze deterioration based on the sensing data transmitted from the plurality of gas pressure sensors and the partial discharge sensor and to evaluate an operation status and the integrity assessment of the breaking unit by analyzing the sensing data from the coil pressure sensor and the stroke sensor, wherein a display unit is configured to display in real time the sensing data from the S-DAS, and the operation status, the integrity assessment, and deterioration of the breaking unit.