High-power hybrid DC circuit breaker bidirectionally switched on and switched off

A DC circuit breaker and hybrid technology, applied in circuits, emergency protection circuit devices, electrical components, etc., can solve problems such as large maintenance, and achieve the effect of overcoming breaking voltage and novel structure

Pending Publication Date: 2016-12-07
INST OF PLASMA PHYSICS CHINESE ACAD OF SCI
View PDF2 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the fuse needs to be replaced every time it

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-power hybrid DC circuit breaker bidirectionally switched on and switched off
  • High-power hybrid DC circuit breaker bidirectionally switched on and switched off
  • High-power hybrid DC circuit breaker bidirectionally switched on and switched off

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] see figure 1 , 2 , a hybrid DC circuit breaker with high-power two-way breaking, including a mechanical bypass circuit breaker, a solid state circuit breaker, an explosion switch PB and a transfer resistor DR, and the mechanical bypass circuit breaker and the solid state circuit breaker are connected in parallel to form a quench main The protection branch is then connected in series with the backup protection unit composed of the explosion switch PB, and finally connected in parallel with the transfer resistance DR.

[0023] In the present invention, the mechanical bypass circuit breaker is a three-level contact structure composed of the main contact MC, the arc contact AC and the fast high-voltage isolation contact FIC, wherein the arc contact AC is connected in series with the fast high-voltage isolation contact FIC The main contacts MC are connected in parallel, and each contact has an independent operating mechanism. It overcomes the disadvantages of lower breakin...

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

The invention discloses a high-power hybrid DC circuit breaker bidirectionally switched on and switched off. The high-power hybrid DC circuit breaker comprises a mechanical bypass circuit breaker, a solid-state circuit breaker, an explosion switch and an energy shift resistor, wherein the mechanical bypass circuit breaker and the solid-state circuit breaker are connected in parallel to form a quenching main protection branch, then are connected in series with a backup protection unit comprising the explosion switch and finally are connected in parallel with the energy shift resistor. The high-power hybrid DC circuit breaker can be applied to a high-power DC power supply system, and is used as a system protection circuit breaker such as a high-power circuit breaker required by the technical field of quenching protection of a superconducting magnet system in a superconducting fusion device, a DC short-circuit protection circuit breaker of a DC power transmission and distribution network and the technical field of pulse power. The system is novel and reliable in structure, and the high-power hybrid DC circuit breaker is an effective way for achieving high-power DC switch-on and switch-off and rapid energy transfer.

Description

technical field [0001] The invention relates to the field of DC circuit breakers, in particular to a hybrid DC circuit breaker with high-power bidirectional breaking. Background technique [0002] The superconducting magnet in the full superconducting tokamak device is large in size, high in energy storage, expensive to manufacture, and very difficult to repair, so the safe operation of the superconducting magnet is extremely important. Once the normal state changes during the operation of the superconducting magnet, the huge electromagnetic energy stored in the magnet coil will be converted into heat energy, which may cause permanent damage to the magnet. Therefore, the high-power quench protection system can reliably and quickly transfer the huge energy stored in the magnet to the transfer resistance unit, so that the superconducting magnet can avoid immeasurable losses to the fusion device after quenching, and ensure the safety of the superconducting magnet. Safe to use ...

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
IPC IPC(8): H01H89/00H02H7/00
CPCH01H89/00H02H7/001
Inventor 宋执权傅鹏汪舒生李华卢应峣
Owner INST OF PLASMA PHYSICS CHINESE ACAD OF SCI
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