High-capacity overvoltage absorber

A technology of absorbers and high-voltage fuses, which is applied in the direction of emergency protection circuit devices, electrical components, and circuit devices used to limit overcurrent/overvoltage, and can solve problems such as short circuits between phases and cumulative insulation damage in electrical equipment. Achieve the effect of reducing the residual voltage value, eliminating the protection dead zone, and suppressing the peak overvoltage

Inactive Publication Date: 2015-08-12
HEFEI SETSAIL TELECOM
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, there are the following voltages in the 3-35KW power system: operating overvoltage of circuit breakers and other equipment, metal and arc grounding overvoltage generated when single-phase metal is grounded, and atmospheric overvoltage generated by lightning strikes, etc. Some peak overvoltages Its maximum value may reach more than 3.5 times the phase voltage. If such an overvoltage acts on the power grid for several hours, it will inevitably cause cumulative damage to the insulation in the electrical equipment. It will cause a major accident of phase-to-phase short circuit

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • High-capacity overvoltage absorber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0008] see figure 1 , a high-capacity overvoltage absorber, which includes nonlinear resistors FR1, FR2, high-voltage fuse RD, capacitor C, and resistor R. One end of the nonlinear resistor FR2 is used as a port, and the other end is connected to one end of the resistor R and the capacitor C respectively. One end is connected to one end of the non-linear resistor FR1, the other end of the resistor R, the other end of the capacitor C, and the other end of the non-linear resistor FR1 are respectively connected to one end of the high-voltage fuse RD, and the other end of the high-voltage fuse RD is used as the other port.

[0009] Resistor R and capacitor C form a high-frequency channel to transmit the high-frequency peak voltage generated in the system to the non-linear resistor FR2, and the non-linear resistor FR2 acts to absorb the peak overvoltage and limit the high-frequency peak voltage not to exceed a certain range, thus ensuring In order not to generate excessive voltage ...

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

No PUM Login to view more

Abstract

A high-capacity overvoltage absorber relates to the technical field of overvoltage inhibition of the power system. The high-capacity overvoltage absorber comprises non-linear resistors FR1 and FR2, a high-voltage fuse RD, a capacitor C and a resistor R, wherein one end of the non-linear resistor FR2 serves as a port while the other end of the non-linear resistor FR2 is connected with one end of the resistor R, one end of the capacitor C and one end of the non-linear resistor FR1; the other end of the resistor R, the other end of the capacitor C and the other end of the non-linear resistor FR1 are connected with one end of the high-voltage fuse RD; and the other end of the high-voltage fuse RD serves as another port. The high-capacity overvoltage absorber is good in the voltage limiting effect and low in residual voltage value, and has very good energy collecting and absorbing effects.

Description

technical field [0001] The invention relates to the technical field of power system overvoltage suppression, in particular to a high-capacity overvoltage absorber. Background technique [0002] At present, there are the following voltages in the 3-35KW power system: operating overvoltage of circuit breakers and other equipment, metal and arc grounding overvoltage generated when single-phase metal is grounded, and atmospheric overvoltage generated by lightning strikes, etc. Some peak overvoltages Its maximum value may reach more than 3.5 times the phase voltage. If such an overvoltage acts on the power grid for several hours, it will inevitably cause cumulative damage to the insulation in the electrical equipment. It will cause a major accident of phase-to-phase short circuit. Contents of the invention [0003] The purpose of the present invention is to provide a high-capacity overvoltage absorber with good voltage limiting effect, low residual voltage value, and good ene...

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
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): H02H9/04
Inventor 不公告发明人
Owner HEFEI SETSAIL TELECOM
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
PatSnap group products

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