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Extra-high voltage direct-current permanent magnet hybrid circuit breaker

A hybrid circuit breaker and UHV DC technology, which is applied in the electric power field, can solve problems such as potential safety hazards, stable and uncertain performance of the transmission system, and achieve the effect of avoiding potential safety hazards and breaking in time

Active Publication Date: 2020-11-27
JIANGSU ELECTRIC POWER CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Circuit breakers can be used to distribute electric energy and protect power lines and motors. They can automatically cut off the circuit when they have severe overload, short circuit and undervoltage faults. At present, in the flexible DC UHV converter valve transmission system, it is impossible to timely Breaking brings uncertain safety hazards to the stable performance of the transmission system

Method used

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  • Extra-high voltage direct-current permanent magnet hybrid circuit breaker
  • Extra-high voltage direct-current permanent magnet hybrid circuit breaker
  • Extra-high voltage direct-current permanent magnet hybrid circuit breaker

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0028] Such as Figure 1-10 As shown, a UHV DC permanent magnet hybrid circuit breaker includes a mounting base 1, a male connection mechanism 2, a female connection mechanism 3, a buffer side spring 4, a buffer middle spring 5, a connection locking mechanism 6, a sliding control mechanism 7, a rotating The control frame 8, the toggle lifting frame 9 and the reset mechanism 10, the male connection mechanism 2 and the female connection mechanism 3 are all slidably connected on the installation base 1, and the described buffer side springs 4 are provided with four, of which two The buffer side spring 4 is located between the installation base 1 and the male connection mechanism 2, and the other two buffer side springs 4 are located between the installation base 1 and the female connection mechanism 3. There are two buffer springs 5, two buffer The middle spring 5 is located between the male connection mechanism 2 and the female connection mechanism 3. The connection locking mech...

specific Embodiment approach 2

[0031] like Figure 1-10 As shown, the installation base 1 includes a bottom plate 1-1, a side plate 1-2, a coil 1-3, a sliding column 1-4, a support plate 1-5, a fixing pin 1-6, a top plate 1-7 and a horizontal Column 1-8, the left and right ends of the bottom plate 1-1 are fixedly connected with side plates 1-2, the inner sides of the two side plates 1-2 are fixedly connected with coils 1-3, and the space between the two side plates 1-2 There are two sliding columns 1-4 fixedly connected, two support plates 1-5 are provided, and the two support plates 1-5 are respectively fixedly connected to the front and rear ends of the middle part of the bottom plate 1-1, and the two support plates 1-5 The outer end surface is symmetrically fixedly connected with fixed pins 1-6, the upper end between the two support plates 1-5 is fixedly connected with a cross column 1-8, and the top plate 1-7 is fixedly connected with the side plate 1-2 on the right side. inside.

specific Embodiment approach 3

[0033] like Figure 1-10 As shown, the public connection mechanism 2 includes a public connection seat 2-1, a permanent magnet 2-2, a terminal I 2-3, a public connection post 2-4 and a locking sliding hole 2-5, and the public connection seat 2-1 A permanent magnet 2-2 is fixedly connected to the right side of the body, a public post 2-4 is fixedly connected to the left side of the public socket 2-1, and the terminal I 2-3 is arranged on the side of the public socket 2-1. The lower end of the male socket 2-1 is provided with a locking sliding hole 2-5, and the male socket 2-1 is slidably connected to the two sliding columns 1-4.

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Abstract

The invention relates to the field of power, and in particular relates to an extra-high-voltage direct-current permanent-magnet hybrid breaker. The breaker comprises a mounting base, a male connectionmechanism, a female connection mechanism, a buffer side spring, a buffer middle spring, a connection locking mechanism, a sliding control mechanism, a rotation control frame, a poking lifting frame and a reset mechanism; the male connection mechanism and the female connection mechanism are both connected to the installation base in a sliding mode. The connection locking mechanism is fixedly connected to the female connection mechanism and is in sliding connection with the male connection mechanism; the two sliding control mechanisms are symmetrically connected to the two ends of the mountingbase in a sliding mode. The rotary control frame is rotationally connected to the mounting base; the toggle lifting frame is connected to the rotation control frame, the male connection mechanism andthe female connection mechanism are both located under the toggle lifting frame, the reset mechanism is connected to the installation base and is in sliding connection with the rotation control frame,a circuit system can be switched on and off in time, and potential safety hazards are prevented.

Description

technical field [0001] The invention relates to the field of electric power, in particular to an ultra-high voltage DC permanent magnet hybrid circuit breaker. Background technique [0002] A circuit breaker refers to a switching device that can close, carry and break current under normal circuit conditions and can close, carry and break current under abnormal circuit conditions within a specified time. Circuit breakers are divided into high-voltage circuit breakers and low-voltage circuit breakers according to their scope of use. Circuit breakers can be used to distribute electric energy and protect power lines and motors. They can automatically cut off the circuit when they have severe overload, short circuit and undervoltage faults. At present, in the flexible DC UHV converter valve transmission system, it is impossible to timely Breaking brings uncertain safety hazards to the stable performance of the transmission system. Contents of the invention [0003] The purpos...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H33/66H01H33/666
CPCH01H33/66H01H33/666
Inventor 于杰
Owner JIANGSU ELECTRIC POWER CO