Linked insulating rod bank used for solid insulating ring main unit

A solid insulation and insulating rod technology, which is applied in the setting of switchgear, switchgear, electrical components, etc., can solve the problems of unreasonable rigidity speed, deformation of tie rod, falling off and breaking, etc., to avoid large deformation or even breaking and falling off, improve The distribution characteristics of the force, the effect of reducing the concentrated force point

Active Publication Date: 2017-09-08
HEBEI ELECTRIC POWER EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004]Currently, there are several problems with circuit breaker insulating rods and isolation insulating rods: 1) The tensile strength is poor, and the pull rods are prone to deformation or even fall off and break; 2) Vacuum extinguishing It is difficult to adjust the mechanical characteristic parameters of the arc chamber, and there will be unreasonable split speed, unsuitable open distance and overtravel technical indicators; 3) The creepage distance of the external insulation is not enough; 4) The internal insulation strength is poor, and penetrating breakdown is prone to occur

Method used

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  • Linked insulating rod bank used for solid insulating ring main unit
  • Linked insulating rod bank used for solid insulating ring main unit
  • Linked insulating rod bank used for solid insulating ring main unit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] like image 3 As shown, a linkage insulating rod group for a solid insulating ring network cabinet includes a circuit breaker insulating rod 10 and an isolation insulating rod 20; it can effectively connect the switch and the operating mechanism of the insulating module 30 of the solid insulating ring network cabinet ( That is, the circuit breaker operating mechanism 40, the isolation operating mechanism 50) and the transmission mechanism 60 are connected to form a complete control system. When the operation mechanism is reached, the vacuum interrupter 31 and the three can be driven by the transmission mechanism 60 and the linkage insulating rod group The contact of the station isolating switch 32 is closed or separated to complete the on-off control of the main circuit. In addition to achieving reasonable insulation performance, the insulating rod group can also achieve the tensile strength of the insulating tie rod to effectively prevent deformation and ensure good mec...

Embodiment 2

[0046] The difference from Embodiment 1 is that there are various spring specifications for the compression spring 3 to have an elastic deformation force of 1950-2050 N, wherein the compression spring 3 has a free height of 45 mm, a spring wire diameter of 7 mm, and a spring outer diameter of 37 mm. The compression amount of the compression spring 3 is 8-10mm, which can meet the design size requirements of the insulating rod 10 of the circuit breaker. And buffer spring 3 used material is 60Si 2 Mn, the buffer spring is designed with silicon-manganese spring steel material, which has good mechanical properties such as tensile strength and yield strength, elongation, and reduction of area, and can withstand large loads.

Embodiment 3

[0048] The difference from Embodiment 1 is that the first insulating core body of the first insulating rod main body 1 is a high-strength flame-retardant nylon rod, and its internal insulation strength is affected by the sharp change of the temperature of the heating element parts, and the insulating rod is slightly deformed when the operating mechanism operates. The impact of the external environment such as impact force is very small, and the material has high electrical properties, high impact strength, high rigidity, high heat resistance, good dimensional stability, and the environment has little effect on the deterioration of the insulating material, and the internal insulation performance can be be guaranteed. More importantly, it is suitable for molding and pouring, and is suitable for pouring steel column inserts. The first insulating jacket of the first insulating rod main body 1 is made of silicone rubber, which has excellent insulation performance, high and low temp...

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PUM

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Abstract

The invention discloses a linked insulating rod bank used for a solid insulating ring main unit. The linked insulating rod bank comprises a circuit breaker insulating rod for connecting a first connecting lever connected to a circuit breaker transmission main shaft in a transmission mechanism with a movable conducting rod of a vacuum arc-extinguishing chamber and an isolated insulating rod for connecting a second connecting lever connected to an isolated transmission main shaft in the transmission mechanism with an isolated blade of a three-position isolated switch; the circuit breaker insulating rod comprises a lower connecting rod, an insulating rod main body, a compression spring, a first pull rod sleeve, a double-end adjusting rod and a first adjusting rod which are coaxially arranged from bottom to top. The insulating rod bank has reasonable interior insulating property and exterior insulating property, has an effect of preventing the deformation of the insulating rods, and is provided with a lever length adjusting structure, so that the parameters of the related mechanical characteristics of the vacuum arc-extinguishing chamber can be effectively adjusted.

Description

technical field [0001] The invention relates to the field of solid insulation ring network cabinets, in particular to a linkage insulating rod group for solid insulation ring network cabinets. Background technique [0002] The solid insulated ring network cabinet is a green and environment-friendly ring network cabinet popular in the market, which belongs to the power distribution equipment at the end of the distribution network system. The solid insulated network cabinet has the characteristics of compact size, green environmental protection and energy saving, maintenance-free, safe and reliable. [0003] The solid insulated ring network cabinet includes a linked insulating rod group, which can connect the switch of the insulating box module with the operating mechanism and the transmission mechanism to form a complete control system. When operating the operating mechanism, it can pass through the transmission system and the insulating rod Drive the contacts of the vacuum ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02B13/035H02B1/30
CPCH02B1/30H02B13/0352
Inventor 王君海刘欣慧张景涛郭书英张海霞周伟张腾郝雪楠朱丹
Owner HEBEI ELECTRIC POWER EQUIP
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