Parasitic loop fault searching system and method of direct current secondary loop
A parasitic loop and fault finding technology, applied in the fault location, detecting faults according to conductor types, etc., can solve the problem of difficult to find parasitic loops, and achieve the effect of ensuring safe production
Pending Publication Date: 2022-05-13
GUANGXI POWER GRID CO LIUZHOU POWER SUPPLY BUREAU
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] The purpose of the present invention is to provide a parasitic circuit fault finding system and method of a DC secondary circuit, which can solve the problem that the parasitic circuit of a DC secondary circuit is difficult to find in the prior art
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
[0026] Embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings.
[0027] Embodiments of the present disclosure are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present disclosure from the contents disclosed in this specification. Apparently, the described embodiments are only some of the embodiments of the present disclosure, not all of them. The present disclosure can also be implemented or applied through different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present disclosure. It should be noted that, in the case of no conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in the present disclosure, a...
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 parasitic loop fault searching system and method for a direct current secondary loop, and the system comprises a plurality of clip-on ammeters, one of which is set as a host computer, and the others are slave computers. The clip-on ammeters set as the host are respectively in communication connection with the clip-on ammeters of the slave machines; the clip-on ammeter comprises a master control CPU, a display module, a ZigBee wireless communication module, a current sampling module and a current sensor. The master control CPU is connected with the display module, the ZigBee wireless communication module and the current sampling module and is used for data operation, display processing and communication processing. The current sampling module is used for collecting a current signal of the current sensor and transmitting the current signal to the main control CPU; the ZigBee wireless communication module is used for communication information transmission between the clip-on ammeters; and the display module is used for information display and man-machine interaction. According to the method, the parasitic loop fault of the secondary feeder branch of each plant and station can be effectively searched.
Description
technical field [0001] The invention relates to the technical field of DC system detection, in particular to a parasitic loop fault finding system and method for a DC secondary loop. Background technique [0002] The DC system is used in hydraulic and thermal power plants to provide DC power supply for signal equipment, protection, automatic devices, emergency lighting, emergency power supply and circuit breaker opening and closing operations. The load of the DC system has high requirements on the power supply, and each load has independent power supply wiring. For substations that have been in operation for many years, with the continuous increase of system equipment, the technical transformation and construction are not standardized, which leads to the parasitic loop load of dual-circuit power supply in the DC system is inevitable. [0003] The parasitic circuit of the DC secondary circuit in the DC system refers to the redundant circuit that should not exist in the prote...
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): G01R31/08
CPCG01R31/085
Inventor 韦晓林李海勇雷涛陈炜智罗怀覃志军黄伟蓝盛刘俊雨周雄玉海澄周谢程建建单国栋黄子珍曾红梅徐玉凤李永祥吴文健黄建峰
Owner GUANGXI POWER GRID CO LIUZHOU POWER SUPPLY BUREAU