Device for measuring partial discharge
A measuring device and partial discharge technology, applied in the direction of testing the dielectric strength, etc., can solve the problem of not realizing the accurate measurement of the voltage of the cable elbow terminal
Pending Publication Date: 2022-03-01
GUANGZHOU POWER SUPPLY BUREAU GUANGDONG POWER GRID CO LTD
View PDF5 Cites 2 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] Although the partial discharge measurement of the cable elbow terminal is of great significance, the existing technology has not realized the accurate measurement of the voltage of the cable elbow terminal. How to realize the measurement of the partial discharge of the cable is a problem that people pay attention to.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0044] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.
[0045] The inventors of the present application found that the online measurement of partial discharge signals at the cable elbow terminal can effectively monitor the operation status of the cable line and ensure the safe and reliable operation of the power system. Although the partial discharge measurement of the cable elbow terminal is of great significance, the existing technology does not realize the accurate measurement of the voltage of the cable elbow terminal.
[0046] Based...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a device for measuring partial discharge, which comprises a plug, a sensing device and a measuring device, and is characterized in that the plug is made of an insulating material, one side of the plug is provided with a groove, the other side of the plug is provided with the sensing device, the plug isolates the groove from the sensing device, and the measuring device is connected with the sensing device. A double-end bolt is connected with the plug through the groove, the double-end bolt is electrically connected with a cable to be measured, the sensing device is electrically connected with the measuring device, when the cable to be measured discharges, the sensing device senses the potential of the double-end bolt to generate sensing voltage, and the sensing device is electrically connected with the measuring device. The measuring device obtains the discharge voltage of the cable to be measured by measuring the induction voltage of the induction device. The sensing device is arranged on one side of the plug to sense the discharge voltage of the cable to be measured, and the purpose of measuring the partial discharge of the cable is achieved.
Description
technical field [0001] The application relates to the field of voltage measurement, especially a device for measuring partial discharge. Background technique [0002] During the operation of the cable system, due to problems such as material aging and manufacturing defects, partial discharge will occur inside the cable line and cable accessories. Partial discharge will accelerate the insulation degradation of cables and accessories, and even insulation breakdown will occur in severe cases. Therefore, it is necessary to measure and monitor the partial discharge of the cable system. On-line measurement of partial discharge signals at the cable elbow terminal can effectively monitor the operating status of the cable line and ensure the safe and reliable operation of the power system. [0003] Although the partial discharge measurement of the cable elbow terminal is of great significance, the existing technology has not realized the accurate measurement of the voltage of the c...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/12
CPCG01R31/12
Inventor 吴铮廖磊张如昕伍铭妍黄雪莜杜乐金文佩
Owner GUANGZHOU POWER SUPPLY BUREAU GUANGDONG POWER GRID CO LTD