Insulated pull rod of circuit breaker

A technology for insulating pull rods and circuit breakers, which is applied in the direction of high-voltage air circuit breakers, circuits, electrical components, etc., can solve the problems of affecting insulation characteristics, increasing the size of parts, system hazards, etc., and achieves improved anti-aging performance, excellent mechanical strength, good wear resistance

Active Publication Date: 2019-04-05
HANGZHOU BAIMENG INTELLIGENT SWITCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Generally, increasing the mechanical strength will inevitably increase the size of the machine, which will cause a series of parts to increase in size, resulting in waste of materials, increasing product costs, and still not meeting the trend of miniaturization of high-voltage electrical products. Therefore, the urgent problem to be solved at present is, Meet the mechanical strength of circuit breaker insulating rod products without increasing the mechanical size
[0004] During the closing process, there will also be a phenomenon of closing bounce. The cyclic opening / closing phenomenon between the dynamic and static contacts in the circuit breaker will generate a higher voltage, which will cause damage to the circuit breaker and even the entire power supply system. Serious impact, and in the process of repeated opening and closing of the contacts, it is very easy to cause welding of the contacts, which will also cause harm to the entire system. Continuous impact on the contacts will deform the contacts and cause damage to the vacuum bubbles. Mechanical damage, seriously affecting its insulating properties

Method used

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  • Insulated pull rod of circuit breaker

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Embodiment 1: skeleton preparation one:

[0030] Prepare the backbone as follows:

[0031] Equivalent amount of Et 3 NHCl and anhydrous CuCl 2 Mix and stir at room temperature, and heat at 80°C until the solids are completely dissolved to obtain an organic amine-type copper-based ion solution;

[0032] Put 2000g of powdered polyamide into the kneader, heat at 60°C for 20min, then add 80ml of organic amine-type copper-based ion solution, mix well and heat to 150°C for kneading, after kneading for 20min, add saturated chloride 80ml of iron solution, 100g of decabromodiphenyl ether, heat to 190°C and carry out secondary mixing, the time of secondary mixing is 15min, after completion, add 20g of boric acid, stir evenly, vacuum defoaming for 80min, after defoaming is completed, use The extruder extrudes polyamide fibers. The temperature settings of the extruder from front to back are 215°C, 225°C, 235°C, 245°C, and 255°C. The head temperature is set at 258°C to extrude 0....

Embodiment 2

[0034] Embodiment 2: skeleton preparation two:

[0035] Prepare the backbone as follows:

[0036] Equivalent amount of Et 3 NHCl and anhydrous CuCl 2 Mix and stir at room temperature, and heat at 80°C until the solids are completely dissolved to obtain an organic amine-type copper-based ion solution;

[0037] Put 1500g of powdered polyamide into the kneader, heat at 70°C for 15min, then add 50ml of organic amine-type copper-based ion solution, mix well and heat to 155°C for kneading, after kneading for 15min, add saturated chloride 60ml of iron solution, 60g of decabromodiphenyl ether, heated to 192°C and then mixed for the second time, the time for the second mixing is 13min, after completion, add 20g of boric acid, stir evenly, vacuum degassing for 70min, after degassing is completed, use The extruder extrudes polyamide fiber. The temperature settings of the extruder from front to back are 217°C, 227°C, 237°C, 247°C, and 256°C. The head temperature is set at 259°C to extrud...

Embodiment 3

[0039] Embodiment 3: skeleton preparation three:

[0040] Prepare the backbone as follows:

[0041] Equivalent amount of Et 3 NHCl and anhydrous CuCl 2 Mix and stir at room temperature, and heat at 80°C until the solids are completely dissolved to obtain an organic amine-type copper-based ion solution;

[0042] Put 1000g of powdered polyamide into the kneader, heat at 80°C for 20min, then add 30ml of organic amine-type copper-based ion solution, mix well and heat to 160°C for kneading, after kneading for 10min, add saturated chloride 40ml of iron solution, 50g of decabromodiphenyl ether, heat to 195°C and carry out secondary mixing, the time of secondary mixing is 10min, after completion, add 15g of boric acid, stir evenly, vacuum degassing for 80min, after degassing is completed, use The extruder extrudes polyamide fiber. The temperature settings of the extruder from front to back are 220°C, 230°C, 240°C, 250°C, and 256°C. The head temperature is set at 260°C to extrude 2m...

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PUM

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Abstract

The invention discloses an insulated pull rod of a circuit breaker, belonging to the technical field of circuit breakers.The insulated pull rod of a circuit breaker comprises an insulating rod, a sliding block connected with a moving contact of the circuit breaker, and a guiding rod connected with the insulating rod. The insulating rod is provided with a chute, the sliding block is slidingly installed in the chute, a damping piece is installed between the sliding block and the chute, the top end of the insulating rod is provided with a limit ring, a flexible piece is connected between the sliding block and the moving contact, one end of the flexible piece is in threaded connection with the sliding block, the other end of the flexible piece is in threaded connection with the moving contact,and the flexible piece is located at the outer side of the limit ring. The objective of the invention is to provide an insulated pull rod of a circuit breaker. The insulating rod is provided with theflexible piece having a buffer function, and the flexible piece is high in tensile strength and high in the mechanical strength and has a good buffer function to reduce the instantaneous load of theinsulating pull rod when closed and prolong the service life of the insulating pull rod.

Description

technical field [0001] The invention relates to the technical field of circuit breakers, in particular to an insulating pull rod of a circuit breaker. Background technique [0002] With the continuous development of the national economy, the grid structure and load characteristics are becoming increasingly complex. The continuous development and improvement of my country's electric power industry has put forward strict requirements for power quality and operational reliability. In the current high-voltage power grid, the demand for standardization and simplification is becoming more and more obvious, which will help improve reliability and reduce installation and operation costs. As an indispensable main control and protection equipment in the power system, the circuit breaker has high reliability, large breaking capacity, long maintenance cycle, and is suitable for frequent operation. It has been used in various fields such as the power industry, industrial and mining ente...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H33/42H01H71/10H01H3/02
Inventor 吴孝兵何科技李华兵万建飞高岩姜辛陈智豪
Owner HANGZHOU BAIMENG INTELLIGENT SWITCH CO LTD
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