KR-20260065152-A - Sensor device for partial discharge detection
Abstract
The present invention relates to a sensor device for detecting partial discharge, and more specifically, comprises a main body portion provided in the form of a circular plate having a hollow portion, a fan-shaped antenna portion installed on the upper surface of the main body portion, and a terminal portion installed on the lower surface of the main body portion and connected to the antenna portion through the hollow portion, wherein the antenna portion is characterized by detecting partial discharge within an ultra-high voltage gas-insulated switchgear. Accordingly, according to the present invention, the antenna for partial discharge detection is optimally designed in a fan shape, thereby improving the detection bandwidth and reducing reflection loss.
Inventors
- 김성욱
- 정규호
- 정영일
Assignees
- 주식회사 우성플라텍
Dates
- Publication Date
- 20260508
- Application Date
- 20241101
Claims (5)
- A main body portion provided in the form of a circular plate having a hollow portion; An antenna part in the shape of a fan, installed on the upper surface of the main body part; and A terminal portion installed on the lower surface of the main body portion and connected to the antenna portion through the hollow portion; A sensor device for detecting partial discharge, characterized in that the antenna portion above enables the detection of partial discharge within an ultra-high voltage gas-insulated switchgear.
- In paragraph 1, The above main body part is, A sensor device for detecting partial discharge, characterized by including a plurality of support rods installed vertically upward from the upper surface of the main body to support the antenna part.
- In paragraph 1, The above main body part is, A sensor device for detecting partial discharge, characterized by including an acrylic part installed on the upper surface of the main body and having an upper portion formed in the shape of a circular cylinder corresponding to the circumference of the antenna part.
- In paragraph 1, The above antenna part is, A sensor device for detecting partial discharge, characterized by including: a first sector member and a second sector member, wherein the vertices of the central angle sides are arranged to face each other and are symmetrically positioned, and the arc and chord lengths are formed differently.
- In paragraph 1, The above-mentioned first sector member and second sector member are, A sensor device for detecting partial discharge, characterized by being spaced apart by a preset interval and having the same radius of curvature formed for each arc.
Description
Sensor device for partial discharge detection The present invention relates to a sensor device for detecting partial discharge, and more specifically, to a sensor device for detecting partial discharge in which an antenna is optimally designed to have high-sensitivity detection performance. Generally, partial discharge occurs when power equipment, such as oil-filled transformers—used for large-capacity, outdoor, and most industrial and residential applications—deteriorates due to long-term use or when system problems arise. These partial discharges are electrical defects. Since they cause problems such as power outages and potential electrical accidents, and damage equipment, it is necessary to prevent accidents through accurate detection. Accordingly, research on sensors for high-sensitivity partial discharge detection is actively being conducted by various research institutions and companies. As a prior art document for solving the problems of such conventional partial discharge detection technology, Korean Registered Patent No. 10-2311222 discloses a UHF partial discharge detection sensor. However, according to these conventional technologies, there is a problem in that the characteristics for the optimal design of a sensor antenna for improving sensitivity through improved partial discharge detection bandwidth and reduced reflection loss are insufficient. FIG. 1 is a perspective view of a sensor device for detecting partial discharge according to a first embodiment of the present invention. FIG. 2 is a perspective view showing the lower view of a sensor device for detecting partial discharge according to the first embodiment of the present invention. FIG. 3 is a plan view of the antenna portion of a sensor device for detecting partial discharge according to the first embodiment of the present invention. FIG. 4 is a cross-sectional view of a sensor device for detecting partial discharge according to the first embodiment of the present invention. The terms used in this specification will be briefly explained, and the invention will be described in detail. The terms used in this invention have been selected based on currently widely used general terms while considering their functions within the invention; however, these terms may vary depending on the intent of those skilled in the art, case law, the emergence of new technologies, etc. Therefore, the terms used in this invention should be defined not merely by their names, but based on their meanings and the overall context of the invention. When a part of a specification is described as “comprising” a certain component, this means that, unless specifically stated otherwise, it does not exclude other components but may include additional components. Embodiments of the present invention are described below with reference to the attached drawings so that those skilled in the art can easily implement them. However, the present invention may be embodied in various different forms and is not limited to the embodiments described herein. Specific details regarding the problem to be solved by the present invention, the means for solving the problem, and the effects of the invention are included in the embodiments and drawings described below. The advantages and features of the present invention, and the methods for achieving them, will become clear by referring to the embodiments described below in detail together with the accompanying drawings. Hereinafter, the sensor device for detecting partial discharge according to the present invention will be described in detail with reference to the attached drawings. A sensor device for detecting partial discharge according to a preferred first embodiment of the present invention, with reference to FIGS. 1 to 4, comprises a main body (100) provided in the form of a circular plate having a hollow portion (110), a fan-shaped antenna portion (200) installed on the upper surface of the main body (100), and a terminal portion (300) installed on the lower surface of the main body (100) and connected to the antenna portion (200) through the hollow portion (110). The antenna portion (200) enables the detection of partial discharge within an ultra-high voltage gas-insulated switch. More specifically, the present invention serves to enable the optimal design of an antenna and sensor for high-sensitivity partial discharge detection, thereby allowing for cost reduction and performance improvement compared to existing methods. Through this, the present invention enables the partial discharge detection bandwidth to be improved and sensitivity to be enhanced by reducing reflection loss. For example, the main body (100) is formed in the shape of a circular plate and is provided to be detachably attached to electrical equipment requiring partial discharge detection, and is formed in a hollow shape so that a hollow portion (110) is formed in the center. Additionally, an antenna portion (200) and a terminal portion (300) may be installed o