Gas monitoring system for gas-insulated switchgears
AssigneeSiemens Energy Global GmbH & Co. KG
InventorGraeme Coapes
Life of this patent
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Abstract
A gas monitoring system includes a gas-insulated switchgear, wherein the gas-insulated switch gear has at least two separated chambers which are filled with an insulating gas surrounding high or medium voltage components. A first sensor is connected to the first chamber and a second sensor is connected to the second chamber, both sensors adapted to measure a physical property of the insulating gas in their respective chambers over time. A computer unit is adapted to calculate from the two sensor measurements a leakage rate of the insulating gas in one of the two chambers using an adaptive filter, in particular a Wiener filter.
Claims18
A gas monitoring system comprising:
- a gas-insulated switchgear, wherein the gas-insulated switch gear has at least two separated chambers including a first chamber and a second chamber which are filled with an insulating gas surrounding high or medium voltage components,
- a first sensor connected to the first chamber and a second sensor connected to the second chamber, both sensors adapted to measure a physical property of the insulating gas in their respective chambers over time, and
- a computer unit adapted to calculate from the two sensor measurements in the two separated chambers a leakage rate of the insulating gas in one of the two chambers and that an adaptive filter is used for the calculation.
A method for calculating a leakage rate of insulating gas in a gas-insulated switchgear, wherein the gas-insulated switch gear has at least two separated chambers including a first chamber and a second chamber which are filled with an insulating gas surrounding high or medium voltage components, the method comprising:
- measuring a first physical property of the insulating gas in the first chamber over time with a first sensor and measuring a second physical property of the insulating gas in the second chamber over time with a second sensor, and
- calculating from the two sensor measurements in the two separate chambers a leakage rate of the insulating gas in one of the two chambers and in that an adaptive filter is used for the calculation.
Dependencies are inferred from the claim text.