Photoelectric sensor for discharge detection and discharge detection alarm method

A photoelectric sensor and sensor technology, which is applied in the use of optical methods for testing, parts and instruments of electrical measuring instruments, etc., can solve the problems of affecting detection sensitivity, troublesome use of high-voltage equipment operation and maintenance personnel, and high replacement costs, and achieve the characteristics of And the effect is clear and easy to understand, the alarm is based on science, and the effect of reducing replacement costs

CN114487720APending Publication Date: 2022-05-13宁波阿贝尼红外技术有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2022-05-13

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Abstract

A photoelectric sensor for discharge detection disclosed by the present invention comprises a sensor housing, a window, a secondary window sheet, an ultraviolet photosensitive element and a signal processing circuit, the ultraviolet photosensitive element and the signal processing circuit are arranged in the sensor housing, and the sensor housing is provided with the window. The window is provided with a secondary window sheet used for closing the window and introducing an ultraviolet light signal. The ultraviolet photosensitive element comprises an element shell, a sensing unit and a primary window sheet, the sensing unit is located in the element shell, the primary window sheet is located right above the sensing unit, the secondary window sheet is located right above the sensing unit and the primary window sheet, and the ultraviolet photosensitive element is connected with the signal processing circuit; the secondary window sheet can penetrate ultraviolet light with the wavelength of 280 nm or below, the secondary window sheet is hard plate glass or one of a hard convex lens, a Fresnel lens and an aspherical lens, surface cleaning can be conducted in the using process of the secondary window sheet, the core photosensitive element is not damaged, the service life is long, and the using cost can be reduced.
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Description

technical field

[0001] The invention relates to the technical field of photoelectric detection, in particular to a photoelectric sensor for discharge detection and a discharge detection and alarm method. Background technique

[0002] In the power field, 10kV, 35kV and other medium-voltage switchgears, ring main unit, box-type transformer (installed in the cabinet) and dry-type transformer (installed in the cabinet) are currently commonly used high-voltage equipment. These high-voltage equipment often discharge due to problems such as high humidity or condensation in the cabinet, and the discharge will cause a short circuit to the ground, and even cause a combustion explosion in severe cases. In order to ensure the safe use of these high-voltage equipment, it is necessary to detect the discharge phenomenon of these high-voltage equipment.

[0003] During the discharge process, ultraviolet light with a waveband of 80-280nm is usually generated, and the ultraviolet light in th...

Examples

Embodiment Construction

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0032] In this embodiment, for a clearer description, the following explanations are made: the terms "vertical", "horizontal", "directly above", "directly below", "front", "rear", "left", "right" ", "vertical", "horizontal", "top", "bottom", "inner", "outer" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, which are for convenience only The present invention is describ...