An all fiber optic current transformer
A current transformer and all-fiber technology, which is applied in the field of all-fiber current transformers, can solve problems such as low anti-interference ability, poor environmental protection, and poor safety performance, and achieve excellent electrical performance, light weight, and easy transportation.
Active Publication Date: 2019-01-11
GLOBAL ENERGY INTERCONNECTION RES INST CO LTD +2
View PDF7 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0002] At present, high-voltage DC transmission has been developed rapidly, and traditional electromagnetic DC current transformers are still used in many DC transmission systems; however, the existing electromagnetic DC current transformers have the following disadvantages: poor safety performance, low anti-interference ability, Low accuracy, high noise, high pollution, environmental protection, large volume, heavy weight, etc., so that it is difficult to apply to the current measurement of ±1100kV UHV DC transmission
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] In order to better understand the present invention, the content of the present invention will be further described below in conjunction with the accompanying drawings and examples.
[0045] The present invention provides an all-optical current transformer used in ±1100kV voltage level UHV DC transmission projects, such as figure 1 As shown: the current transformer consists of three parts: the primary sensing unit part 1 , the secondary acquisition chassis part 13 and the foldable segmented composite insulator 4 .
[0046] like figure 2 As shown: on the high-voltage side, the primary sensing unit part 1 includes: upper protective shell 14, current-carrying tube busbar 2 to be tested, tube busbar fittings 15, fixed support 16, transformer sensitive ring 17, sealing ring 18, lower protective Shell 19, flange plate 20, connecting hardware 21, etc.
[0047] Based on the flange plate 20, the fixed support 16 is fixed on it with bolts, and the transformer sensitive ring 17...
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 present invention provides an all-fiber current transformer which comprises a primary sensing unit part of a high voltage side and a secondary collection cabinet part of a lower voltage side. The two parts are connected through a fiber. The primary sensing unit part collects the current of the high voltage side and transmits the current to the secondary collection cabinet part through the fiber, and the fiber is installed in a foldable segmented composite insulator. The all-fiber current transformer provided by the invention has the advantages of compact and simple structure, small size, light weight, low cost, easy processing, convenient disassembly and assembly, convenient transport, high measurement precision of 0.2S / 5TPE level, a wide operating temperature range of -40 DEG C to +80 DEG C and the achievement of double goals of fiber integration and structure miniaturization.
Description
technical field [0001] The invention relates to a current transformer, in particular to an all-optical fiber current transformer in which a connecting optical fiber between a high-voltage side and a low-voltage side is installed in a foldable segmented composite insulator. Background technique [0002] At present, high-voltage direct current transmission has been developed rapidly, and traditional electromagnetic direct current transformers are still used in many direct current transmission systems; however, the existing electromagnetic direct current transformers have the following disadvantages: poor safety performance, low anti-interference ability, Low accuracy, high noise, high pollution, poor environmental protection, large volume, heavy weight, etc., so that it is difficult to apply to the current measurement of ±1100kV UHV DC transmission. [0003] Current transformers are key equipment in power systems, providing electrical signals for various safety and stability 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 Patents(China)
IPC IPC(8): G01R19/25
Inventor 孙海江陈硕刘占元侯继彪李传生崔虎宝郑天祥李璐张朝阳叶志奇李春城尉志勇焦军敏苑婷翁晓宇王亮牛兵张赫刘冠宏方丽丽郭榕明张昊李昕其李长娟王硕
Owner GLOBAL ENERGY INTERCONNECTION RES INST CO LTD