Arc and resonance elimination and overvoltage protection device of microcomputer
An overvoltage and arc suppression technology, which is applied to emergency protection circuit devices, emergency protection circuit devices, and circuit devices for limiting overcurrent/overvoltage, and can solve the problem of single function, no arc suppression, and Harmonic function, power system equipment life and operation safety threats, etc., to achieve the effect of arc suppression and fast action
Inactive Publication Date: 2016-09-28
合肥羿振电力设备有限公司
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0002]In the current 3-35KW neutral point non-directly grounded power system, because all kinds of overvoltage protectors have no arc suppression and harmonic elimination functions, or have single functions, they cannot Effectively avoid accidents such as atmospheric overvoltage, single-phase intermittent arc grounding overvoltage, and ferromagnetic resonance overvoltage caused by system phases and phases to ground. These overvoltages have a certain impact on the life and operation safety of power system equipment. the threat of
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
[0010] see figure 1 , a microcomputer arc suppression harmonic elimination and overvoltage protection device, which includes high-voltage current-limiting fuse FU, voltage transformer PT, three-phase combined overvoltage protector LBP, vacuum contactor JZ microcomputer arc suppression controller ZK, high voltage Fuse RD, zero sequence current transformer LH;
[0011] The microcomputer arc suppression controller ZK includes a voltage transformer control terminal and a vacuum contactor control terminal;
[0012] The three-phase ports of the three-phase combined voltage protector LBP are respectively connected to three-phase high-voltage isolating switches. The ground terminal of the three-phase combined overvoltage protector LBP is connected to the voltage transformer PT to be grounded. There is a high-voltage fuse RD in series between the three-phase port of the voltage transformer PT and the three-phase high-voltage isolating switch, and the microcomputer arc suppression cont...
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 utility model relates to a microcomputer arc suppression and harmonic elimination and overvoltage protection device, which relates to the technical field of arc suppression and harmonic elimination in power systems. It includes high-voltage current-limiting fuses, voltage transformers, three-phase combined overvoltage protectors, vacuum contactors, microcomputer arc suppression controllers, high-voltage fuses, zero-sequence current transformers, and three-phase combined overvoltage protectors. The three-phase ports are respectively connected to the three-phase high-voltage isolating switch, the ground terminal is connected to the voltage transformer and then grounded, and a high-voltage fuse is connected in series between the three-phase port of the voltage transformer and the three-phase high-voltage isolating switch, and the voltage mutual inductance of the microcomputer arc suppression controller The control end of the vacuum contactor is connected to the voltage transformer, the control end of the vacuum contactor is connected to the vacuum contactor, the three-phase ports of the high-voltage current-limiting fuse are respectively connected to the three-phase high-voltage isolation switch, the other end is connected to the vacuum contactor, and the grounding end of the vacuum contactor is grounded , A zero-sequence current transformer is set between the ground terminal and the ground point. The invention has fast action speed and is an overvoltage protection device capable of eliminating arcs and eliminating harmonics.
Description
technical field [0001] The invention relates to the technical field of arc suppression and harmonic elimination in electric power systems, in particular to a microcomputer arc suppression and harmonic elimination and overvoltage protection device. Background technique [0002] At present, in the 3-35KW neutral point non-directly grounded power system, since various overvoltage protectors have no arc suppression, harmonic elimination functions, or single functions, it cannot effectively avoid the atmospheric overvoltage caused by the system phase-to-phase and phase-to-ground , single-phase intermittent arc grounding overvoltage, ferromagnetic resonance overvoltage and other accidents, these overvoltages pose a certain threat to the life and operation safety of power system equipment. Contents of the invention [0003] The purpose of the present invention is to provide a kind of action speed fast. Overvoltage protection device capable of arc suppression and harmonic elimina...
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): H02H9/08H02H9/04
CPCH02H9/08H02H9/04
Inventor 武行峰
Owner 合肥羿振电力设备有限公司
Who we serve
- R&D Engineer
- R&D Manager
- IP Professional
Why Eureka
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Social media
Try Eureka
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap