Capacitor state detection method and detection system

Abstract

The invention provides a capacitor state detection method, which is characterized by at least comprising two coils, wherein the coils are arranged on two sides of a capacitor respectively, and the coils are coaxially arranged. The two coils are electrified and controlled to generate stable magnetic fields as well as an electric field between the two coils, magnetic flux penetrating the capacitor and a capacitance value between the two coils are detected, and the state of the capacitor is determined according to changes of the magnetic flux and the capacitance value. The capacitor state detection method and a capacitor state detection system provided by the invention can detect external state and internal state of the capacitor accurately, discover the state change of the capacitor timely and carry out corresponding processing on the changed capacitor, eliminate potential risks in a power grid, ensure power supply stability, reduce the use of manpower, reduce labor costs, and improve the detection efficiency and accuracy.

Description

technical field [0001] The invention relates to the field of capacitors, in particular to a capacitor state detection method and detection system. Background technique [0002] In the power supply network, in order to ensure the stable operation of the grid power supply, there are many capacitors in the capacitor as reactive power compensation equipment. With the use of capacitors, the state of the capacitor itself will change, such as capacitor bubbling and the electrolyte inside the capacitor or When the winding tape changes, when the state of the capacitor changes, the performance of the capacitor itself will decline, which will seriously affect the stable operation of the power grid. In the prior art, the detection of capacitor bubbling is mainly through manual inspection, which is inefficient and expensive. Large, it is easy to miss detection; and there is no effective method to detect the state change inside the capacitor, and the judgment is often based on empirical f...

AI Technical Summary

Problems solved by technology

[0002] In the power supply network, in order to ensure the stable operation of the grid power supply, there are many capacitors in the capacitor as reactive power compensation equipment. With the use of capacitors, the state of the capacitor itself will change, such as capacitor bubbling and the electrolyte inside the capacitor or When the winding tape changes, when the state of the capacitor changes, the performance of the capacitor itself will decline, which will seriously affect the stable operation of the power grid. In the prior art, the detection of capacitor bubbling is mainly through manual inspection, which is inefficient and expensive. Large, prone to missed detection; and there is no effective method to detect the state change inside the capacitor, often based on empirical formulas, and the evaluation results are extremely inaccurate

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