A simulation test platform for typical defects of high-voltage cables
A high-voltage cable and test platform technology, which is applied in the directions of measuring electricity, measuring electrical variables, and testing dielectric strength, etc., can solve cable faults, do not carry out high-voltage cable body, terminal and intermediate joint simulation test analysis, affect the safety of electric loads, Stable transmission and other issues, achieve high utilization rate, expand cable fault diagnosis and status evaluation capabilities, and improve cable fault diagnosis and status evaluation capabilities
Active Publication Date: 2018-10-09
ELECTRIC POWER RES INST OF STATE GRID ZHEJIANG ELECTRIC POWER COMAPNY +1
View PDF5 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The high-voltage cables of Zhejiang Power Grid have experienced cable faults many times, seriously affecting the safe and stable transmission of power loads
[0004] At present, there are few cable defect simulation test platforms in China, and Zhejiang Province has not yet built a cable simulation test platform, and has not carried out simulation test analysis of various defects in high-voltage cable bodies, terminals and intermediate joints. The corresponding detection technologies for various types of cable defects Comparative test methods also need to be improved
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
[0027] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments of the present invention 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.
[0028] 1. Boost unit
[0029] The main components of the step-up unit are insulating barrel-type non-discharge transformers and GIS components. The output voltage of the transformer is continuously adjustable, up to 280kV. The GIS component consists of 5 isolation grounding switches (K0, K1, K2, K3, K4) and 4 GIS cable compartments, forming a "one input and four output" structure. Among them, three GIS cable compartments are respectively connected to the first, second and third ...
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 typical defect simulated testing platform of a high-voltage cable. At present, simulated testing analysis on various defects of a high-voltage cable body, a terminal and a middle connector is not developed. The typical defect simulated testing platform comprises a boosting unit, a current raising unit, a cable model unit and an analogue circuit, and is characterized in that the boosting unit comprises a boosting device with output voltage capable of being continuously adjusted, and a GIS assembly, wherein the boosting device is used for supplying voltage to the GIS assembly; the GIS assembly comprises at least four isolation earthing switches which form a one-input and multiple-output connection manner and at least three GIS cable cabins; one circuit composed of 1 to 2 cable bodies, the isolation earthing switches and the GIS cable cabins is used as a testing circuit; the analogue circuit is a closed circuit formed by cables. The typical defect simulated testing platform of the high-voltage cable can be used for really simulating actual operation working conditions of the cable, and the middle connector with defects is connected with the cable body by adopting a plugging type structure; various types of typical defects can be repeatedly simulated and the utilization rate is high.
Description
technical field [0001] The invention relates to the field of high-voltage cable defect simulation, in particular to a simulation test platform for typical defects of high-voltage cables. Background technique [0002] A real and effective simulation test platform is the basis for exploring the mechanism of cable defects, testing the effectiveness of various detection methods, and evaluating the status of cables. [0003] With the widespread use of XLPE cables, especially during long-term operation, the cables (including the body and accessories) are affected by factors such as electric fields, thermal effects, mechanical stress, chemical corrosion, and environmental conditions, and the insulation quality gradually deteriorates, which is likely to cause insulation System disruption. How to accurately and real-time grasp the operating status of the cable body and accessories through effective monitoring methods, and avoid large-scale power outages caused by fault breakdown of ...
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 Patents(China)
IPC IPC(8): G01R31/12
CPCG01R31/1272
Inventor 曹俊平王少华胡文堂刘浩军周象贤李特蒋愉宽于淼
Owner ELECTRIC POWER RES INST OF STATE GRID ZHEJIANG ELECTRIC POWER COMAPNY