Determination method of breaking capacity of column circuit breaker for 1100 kV filter

Abstract

The invention discloses a determination method of the breaking capacity of a column circuit breaker for a 1100 kV filter. The method includes: S101, obtaining the detection concentration and the limitconcentration of carbon tetrafluoride in the column circuit breaker for the 1100 kV filter; and S102, determining the breaking capacity of the column circuit breaker for the 1100 kV filter accordingto the detection concentration and the limit concentration, wherein the detection concentration is the concentration of carbon tetrafluoride corresponding to a current opening-closing frequency of thecolumn circuit breaker for the 1100 kV filter, and the limit concentration is the concentration of the carbon tetrafluoride corresponding to a limit opening-closing frequency of the column circuit breaker for the 1100 kV filter. According to the method, the work state of the column circuit breaker for the 1100 kV filter can be rapidly determined according to the concentration of carbon tetrafluoride generated in the circuit breaker so that a reliable basis is laid for rapid maintenance of the column circuit breaker for the 1100 kV filter and safe operation of ultra-high-voltage power grids.

Description

technical field [0001] The invention belongs to the field of electrical technology, and in particular relates to a method for determining the breaking capacity of an arc-extinguishing chamber of a column circuit breaker for a 1100kV filter. Background technique [0002] With the development of China's UHV power grid, in order to meet the needs of future UHV power grid construction, 1100kV / 63kA filter post circuit breakers came into being, because 1100kV / 63kA filter post circuit breakers are the key to the operation of UHV power grids Equipment, so its reliability is related to the operation safety of the entire UHV power grid. [0003] When the abnormal operation of the UHV power grid occurs due to the failure of the 1100kV / 63kA filter post circuit breaker, maintenance personnel often need to check and repair all equipment related to the operation of the UHV power grid, and usually cannot quickly locate the 1100kV / 63kA The 63kA filter column circuit breaker will not only wa...

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Problems solved by technology

[0003] When the abnormal operation of the UHV power grid occurs due to the failure of the 1100kV / 63kA filter post circuit breaker, maintenance personnel often need to check and repair all equipment related to the operation of the UHV power grid, and usually cannot quickly locate the 1100kV / 63kA The 63kA filter column circuit breaker will not only waste a lot of manpower and material resources, but also cause abnormal operation of the UHV power grid for a long time, affecting the normal life order

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