CN219142900U

CN219142900U - Protective cover for switch cabinet partial discharge detection equipment

Info

Publication number: CN219142900U
Application number: CN202222973909.8U
Authority: CN
Inventors: 刘富文; 王六玉; 黄春艺; 陈龙; 张潍中; 温润贤
Original assignee: Fujian Youdi Electric Power Technology Co Ltd
Current assignee: Fujian Youdi Electric Power Technology Co Ltd
Priority date: 2022-11-09
Filing date: 2022-11-09
Publication date: 2023-06-06
Anticipated expiration: 2032-11-09

Abstract

The utility model discloses a protective cover for a switch cabinet partial discharge detection device, which comprises an adsorption ring, a protective cover and dustproof plastic films, wherein the adsorption ring is in a circular ring shape, the protective cover is fixed on the adsorption ring, a magnet groove is arranged on the lower bottom surface of the adsorption ring, the protective cover is a cylinder with an arc surface on the upper bottom surface and is made of fine steel wires, an ultrasonic sensor part is wrapped inside the protective cover, a layer of dustproof plastic film is adhered to the inner wall surface of the protective cover, wire inlet holes are arranged in the middle position of the upper bottom surface of the arc surface, the magnet grooves are cylindrical inner grooves, six magnet stones are embedded in the magnet grooves, and the magnet stone can adsorb and fix the adsorption ring on a switch cabinet door plate. The utility model has the beneficial effects that: the ultrasonic sensor is convenient to install and detach, the problem that partial discharge is damaged due to partial charge of the ultrasonic sensor can be effectively prevented, and the reliability of safe and stable operation of the switch cabinet partial discharge detection equipment is improved.

Description

Protective cover for switch cabinet partial discharge detection equipment

Technical Field

The utility model relates to a protective cover for a switch cabinet partial discharge detection device, and belongs to the technical field of detection of electrical equipment.

Background

The partial discharge detection equipment of the switch cabinet can monitor the partial discharge condition of the switch cabinet in the operation process in real time, early warning is timely made on the abnormal insulation state and the discharge fault of the switch cabinet, necessary guiding data are provided for the normal operation of the switch cabinet, and the situation that the local or even large-area power failure of a power system is caused due to the occurrence of the partial discharge of the switch cabinet can be effectively avoided, so that huge direct and indirect economic loss and social influence are caused. The existing local discharge detection equipment of the switch cabinet on the market has various types, such as an XXPD-Z200 switch cabinet on-line local discharge monitoring system which is independently developed by Shanghai Xixi information technology. The intelligent monitoring system can monitor whether partial discharge exists in the switch cabinet on line in real time, and comprises an ultrasonic sensor, an intelligent monitoring terminal, a partial discharge monitoring host, a monitoring data platform and the like. The ultrasonic sensor is generally arranged inside the switch cabinet, so that the collision risk of an external object to the ultrasonic sensor can be effectively avoided, the detection sensitivity of the ultrasonic sensor is improved, but the ultrasonic sensor also brings a certain risk, when partial discharge occurs between electrical equipment inside the switch cabinet and a cabinet door of the switch cabinet, if the high-voltage instantaneous current breaks down the air, the cabinet door of the switch cabinet is electrified, the ultrasonic sensor is not protected, the ultrasonic sensor can be electrified to be damaged by high-voltage electricity, and in order to overcome the problems, the protective cover for the detection equipment for the switch cabinet partial discharge is designed, and is independently arranged outside the ultrasonic sensor part of the detection equipment for the switch cabinet partial discharge, the ultrasonic sensor part is covered inside, so that the problem of damage caused by the charge of the ultrasonic sensor part during the partial discharge is effectively prevented, and the reliability of the safe and stable operation of the detection equipment for the switch cabinet partial discharge is improved.

Disclosure of Invention

The utility model aims to solve the technical problem of providing the protective cover for the partial discharge detection equipment of the switch cabinet, which is independently arranged outside the ultrasonic sensor part of the partial discharge detection equipment of the switch cabinet, and covers the ultrasonic sensor part inside, so that the problem that the ultrasonic sensor part is damaged due to charge when partial discharge occurs is effectively prevented, and the reliability of safe and stable operation of the partial discharge detection equipment of the switch cabinet is improved.

The utility model is realized by the following scheme: the utility model provides a cubical switchboard partial discharge is protection casing for check out test set, its includes adsorption ring, protection casing, dustproof plastic film, the adsorption ring is the ring shape, is fixed with the protection casing on it, and its lower bottom surface is equipped with the magnet groove, the protection casing is the cylinder that the upper bottom surface is the cambered surface, is woven by thin steel wire, and it wraps up ultrasonic sensor part inside, and its inner wall surface pastes one deck dustproof plastic film, and its bottom surface intermediate position is equipped with the inlet wire hole on the cambered surface.

The thickness of the dustproof plastic film is zero point two millimeters.

The wire inlet hole is cylindrical, and an antifriction ring is arranged on the inner wall surface of the wire inlet hole.

The magnet groove is a cylindrical inner groove, six magnet grooves are embedded with round magnet stones, and the round magnet stones can adsorb and fix the adsorption ring on the door plate of the switch cabinet.

The thin steel wire consists of a plastic layer and nickel-plated steel wires, wherein the thickness of the plastic layer is three millimeters, the nickel-plated steel wires are wrapped in the plastic layer, and the diameter of the nickel-plated steel wires is seven millimeters.

The beneficial effects of the utility model are as follows:

1. the protective cover for the switch cabinet partial discharge detection equipment is independently arranged outside an ultrasonic sensor part of the switch cabinet partial discharge detection equipment, covers the ultrasonic sensor part inside and is convenient to install and detach.

2. According to the protective cover for the partial discharge detection equipment of the switch cabinet, which is disclosed by the utility model, the protective cover is of a net-shaped structure, so that the problem that the ultrasonic sensor is damaged due to partial charge when partial discharge occurs can be effectively prevented, and the reliability of safe and stable operation of the partial discharge detection equipment of the switch cabinet is improved.

Drawings

Fig. 1 is a schematic cross-sectional view of a protective cover for a switchgear partial discharge detection device according to the present utility model.

Fig. 2 is a schematic diagram of a bottom cross-sectional structure of a protective cover for a switchgear partial discharge detection device according to the present utility model.

Fig. 3 is a schematic view of a cross-sectional structure of a thin steel wire of a protective cover for a switchgear partial discharge detection device of the present utility model.

In the figure: 1 is a switch cabinet door plate, 2 is an ultrasonic sensor part, 3 is an adsorption ring, 4 is a protective cover, 5 is a dustproof plastic film, 6 is a wire inlet hole, 7 is an antifriction ring, 8 is a magnet groove, 9 is a round magnet, 10 is a thin steel wire, 11 is a plastic layer, and 12 is a nickel plating steel wire.

Detailed Description

The present utility model will be further described with reference to fig. 1, 2 and 3, but the scope of the present utility model is not limited to the above description.

Wherein like parts are designated by like reference numerals. It should be noted that the words "front", "back", "left", "right", "up" and "down" used in the following description refer to directions in the drawings, the words "inner" and "outer" refer to directions toward or away from a geometric center of a particular component, respectively, and the drawings are in a very simplified form and all use non-precise ratios for convenience and clarity only to aid in explaining embodiments of the present utility model.

In the following description, well-known functions and constructions are not described in detail for clarity of understanding, since they would obscure the utility model with unnecessary detail, it is to be understood that in the development of any actual embodiment, numerous implementation details must be made to achieve the developer's specific goals, such as compliance with system-related or business-related constraints, that will vary from one embodiment to another, and that will be appreciated that such a development effort may be complex and time-consuming, but will be merely routine for one of ordinary skill in the art.

The utility model provides a cubical switchboard partial discharge is protection casing for check out test set, it includes adsorption ring 3, protection casing 4, dustproof plastic film 5, and adsorption ring 3 is the ring shape, is fixed with protection casing 4 on it, and its lower bottom surface is equipped with magnet groove 8, and protection casing 4 is the cylinder that the upper bottom surface is the cambered surface, is woven by thin steel wire 10, and it wraps up ultrasonic sensor part 2 inside, and its internal face pastes one deck dustproof plastic film 5, and its bottom surface intermediate position is equipped with inlet wire hole 6 on the cambered surface.

The thickness of the dustproof plastic film 5 is zero point two millimeters.

The wire inlet hole 6 is cylindrical, and the inner wall surface of the wire inlet hole is provided with an anti-friction ring 7.

The magnet grooves 8 are cylindrical inner grooves, six magnet grooves are embedded with round magnet 9, and the round magnet 9 can fix the adsorption ring 3 on the switch cabinet door plate 1 in an adsorption mode.

The thin steel wire 10 consists of a plastic layer 11 and nickel-plated steel wires 12, wherein the thickness of the plastic layer 11 is three millimeters, the nickel-plated steel wires 12 are wrapped in the plastic layer, and the diameter of the nickel-plated steel wires 12 is seven millimeters.

Example 1: in the working process of the switch cabinet partial discharge detection equipment, the ultrasonic sensor part 2 can collect ultrasonic signals inside the switch cabinet and transmit the ultrasonic signals to other parts of the switch cabinet partial discharge detection equipment to analyze and judge whether partial discharge occurs, when partial discharge occurs between the switch cabinet door plate 1 and the switch cabinet, the grid structure of the protective cover 4 can form a current shielding layer, electric arcs can be effectively prevented from being beaten on the ultrasonic sensor part 2 to damage the ultrasonic sensor part 2, and then safety of the ultrasonic sensor part 2 in the use process is improved.

Example 2: the dustproof plastic film 5 can effectively prevent dust from entering the protective cover 4, further influences the ultrasonic sensor part 2, and can be taken down by only overcoming the adsorption force of the round magnet 9 to the switch cabinet door plate 1 when the utility model is required to be disassembled, thereby being convenient and quick.

While the utility model has been described and illustrated in considerable detail, it should be understood that modifications and equivalents to the above-described embodiments will become apparent to those skilled in the art, and that such modifications and improvements may be made without departing from the spirit of the utility model.

Claims

1. A protection casing for detection equipment is put in cubical switchboard office, its characterized in that: the ultrasonic sensor comprises an adsorption ring (3), a protective cover (4) and a dustproof plastic film (5), wherein the adsorption ring (3) is in a circular ring shape, the protective cover (4) is fixed on the adsorption ring, a magnet groove (8) is formed in the lower bottom surface of the adsorption ring, the protective cover (4) is a cylinder with an upper bottom surface being an arc surface, the protective cover is formed by braiding thin steel wires (10), the ultrasonic sensor part (2) is wrapped inside, the inner wall surface of the protective cover is stuck with a layer of dustproof plastic film (5), and a wire inlet hole (6) is formed in the middle position of the upper bottom surface of the arc surface.

2. The protective cover for a switchgear partial discharge detection device according to claim 1, wherein: the thickness of the dustproof plastic film (5) is zero point two millimeters.

3. The protective cover for the partial discharge detection equipment of the switch cabinet according to claim 1, wherein the wire inlet hole (6) is cylindrical, and an anti-friction ring (7) is arranged on the inner wall surface of the wire inlet hole.

4. The protective cover for the partial discharge detection equipment of the switch cabinet according to claim 1, wherein the number of the magnet grooves (8) is six, and round magnet stones (9) are embedded in the magnet grooves, and the round magnet stones (9) can adsorb and fix the adsorption ring (3) on the door plate (1) of the switch cabinet.

5. The protective cover for the partial discharge detection equipment of the switch cabinet according to claim 1, wherein the thin steel wire (10) consists of a plastic layer (11) and nickel-plated steel wires (12), the thickness of the plastic layer (11) is zero three millimeters, the nickel-plated steel wires (12) are wrapped in the plastic layer, and the diameter of the nickel-plated steel wires (12) is zero seven millimeters.