CN204332813U - A kind of vacuum load switch - Google Patents

Abstract

The present application discloses a vacuum load switch, which includes: a vacuum load switch body; a device set on the vacuum load switch for data interaction with substation equipment through a communication line, and performs data exchange on the vacuum load switch body according to the data information sent by the substation equipment. control device; the vacuum load switch body includes: isolation end porcelain sleeve assembly, current transformer, isolation fracture, isolation fracture operation insulation shaft, vacuum interrupter operation insulation shaft, lifting device, housing, vacuum interrupter , Porcelain sleeve cable assembly of arc extinguishing chamber, operating mechanism and operating handle. Due to the setting of the control device, the device can realize the automatic management and control of the power distribution line where the device is located, and the working efficiency is improved.

Description

A vacuum load switch

technical field

The present application relates to the technical field of electric equipment, and more specifically, relates to a vacuum load switch.

Background technique

In recent years, with the development of the economy, my country's electric power industry has maintained a momentum of rapid development. Since the country began to implement the urban and rural power grid reconstruction project, the application of vacuum load switches has become more and more extensive. How to improve the automatic management and control of vacuum load switches has become a basic One of the technical problems to be solved urgently by those skilled in the art.

Utility model content

In view of this, the present application provides a vacuum load switch capable of automatic management and control.

In order to achieve the above purpose, the proposed scheme is as follows:

A vacuum load switch comprising:

Vacuum load switch body;

The control device installed on the vacuum load switch is used for data interaction with the substation equipment through the communication line, and controls the vacuum load switch body according to the data information sent by the substation equipment;

The vacuum load switch body includes: isolation terminal porcelain sleeve assembly, current transformer, isolation fracture, isolation fracture operation insulation shaft, vacuum interrupter operation insulation shaft, lifting device, housing, vacuum interrupter, arc interrupter porcelain Set of cable assembly, operating mechanism and operating handle.

Preferably, the casing and mechanism cover of the vacuum load switch are filled with SF6 gas.

Preferably, in the above-mentioned vacuum load switch, the operating mechanism includes:

An automatic operating mechanism and a manual operating mechanism for controlling the opening/closing of the vacuum load switch.

Preferably, the above-mentioned vacuum load switch may also include:

A surge arrester installed on each phase of the vacuum load switch.

Preferably, the structure of the incoming and outgoing wires of the above-mentioned vacuum load switch adopts a porcelain sheathed cable structure.

Preferably, the structure of the insulating shaft of the vacuum load switch includes: a steel core and an insulating material molded on the steel core.

Preferably, the operating shaft of the vacuum load switch is an insulated rotating shaft.

Preferably, the above-mentioned vacuum load switch may also include:

Moving brackets are arranged on both sides of the housing at a position above the assembly of the porcelain sleeve at the isolation end.

Preferably, the above-mentioned vacuum load switch may also include:

A power indicator light, a self-test indicator light, a fault indicator light, and a reset button for controlling the reset of the fault indicator light are arranged on the housing or the control device.

Preferably, rubber seals are used between the housing and the upper cover of the above-mentioned vacuum load switch, the housing and the mechanism cover, and the housing and the isolation end porcelain sleeve.

It can be seen from the above technical solutions that the vacuum load switch disclosed in the present application can realize the automatic management and control of the power distribution line where the device is located due to the setting of the control device, which improves the work efficiency.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description It is only an embodiment of the utility model, and those skilled in the art can also obtain other drawings according to the provided drawings without creative work.

Fig. 1 is a sectional view of the front view of the vacuum load switch body disclosed in the present application;

Fig. 2 is a cross-sectional view of the top view of the vacuum load switch body disclosed in the embodiment of the present application after removing the lifting device.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments in the utility model, all other embodiments obtained by persons of ordinary skill in the art without creative work, all belong to the protection scope of the utility model.

Fig. 1 is a sectional view of the front view of the vacuum load switch body disclosed in the present application.

Fig. 2 is a cross-sectional view of the top view of the vacuum load switch body disclosed in the embodiment of the present application after removing the lifting device.

This application discloses a vacuum load switch with a model number of FZW28F-12/630-20 capable of automatic management and control, which is characterized in that it includes:

Vacuum load switch body;

The control device installed on the vacuum load switch is used for data interaction with the substation equipment through the communication line, and controls the vacuum load switch body according to the data information sent by the substation equipment;

Referring to Fig. 1 and Fig. 2, the vacuum load switch body includes: isolation terminal porcelain sleeve assembly 1, current transformer 2, isolation fracture 3, isolation fracture operation insulation shaft 4, vacuum interrupter operation insulation shaft 5, lifting device 6 , Shell 7, vacuum interrupter 8, arc extinguisher porcelain sleeve cable assembly 9, operating mechanism 10 and operating handle 11.

Wherein, the above-mentioned control device is mainly used to obtain the operating parameters of the vacuum load switch body, upload the obtained operating parameters to the substation equipment, and control the operation of the vacuum load switch body according to the obtained control signal output by the substation equipment. working status.

It can be understood that the vacuum load switch body is a commonly used power equipment in the prior art, and the isolation end porcelain sleeve assembly 1, current transformer 2, isolation fracture 3, isolation fracture operation insulation shaft 4, vacuum extinguisher in the device Arc chamber operation insulating shaft 5, lifting device 6, housing 7, vacuum interrupter 8, arc chamber porcelain sleeve cable assembly 9, operating mechanism 10 and operating handle 11 can be connected by existing connection methods in the prior art , no need to explain here.

Referring to the vacuum load switch disclosed in the above embodiments of the present application, it can be seen that due to the setting of the control device, the device can realize automatic management and control of the power distribution line where the device is located, improving work efficiency.

It can be understood that the control device in the above embodiments of the present application may use FDR control equipment or RTU control equipment to realize automatic management and control of power distribution lines.

It can be understood that, depending on the application scenarios of the vacuum load switch, the electrical parameters of the vacuum load switch during normal operation are also different. For example, the maximum rated voltage of the vacuum load switch can be 12kV, and the rated current can be 630A , the rated frequency can be 50Hz.

It can be understood that the external structure of the above-mentioned vacuum load switch body of the present application is mainly composed of a casing, a mounting bracket and a main circuit connection, etc., wherein the casing includes: a casing and a mechanism cover, and the casing and the mechanism cover adopt a sealed structure, to ensure that the vacuum load switch body is used for a long time, and rainwater will not seep into the inside of the box. Of course, for the convenience of installation, the housing is also provided with suspension bolts, so that the vacuum load switch can be safely put into the suspension cross arm. The connection of the main circuit adopts the tapered ceramic sheathed cable to ensure the reliability of the vacuum load switch.

The internal structure of the vacuum load switch body can be divided into a main circuit part and an operating mechanism part, wherein the main circuit part is mainly composed of a vacuum interrupter for controlling three-phase current breaking and a vacuum interrupter for ensuring high breaking reliability. It is understood that, in order to improve the insulation performance of the above-mentioned vacuum load switch, there are insulating plates between the phases and the ground (shell) of the above-mentioned vacuum load switch. The housing and mechanism cover are filled with insulating medium SF6 gas. Through-type current transformers are installed in each phase of the vacuum load switch to realize short-circuit blocking.

It can be understood that, in order to control the vacuum load switch conveniently, the operating mechanism for controlling the opening/closing of the vacuum load switch disclosed in the above embodiments of the present application is composed of an automatic operating mechanism and a manual operating mechanism. When the operating handle is positioned at the "automatic" position and the operating power supply is energized, the vacuum load switch is in the "closed" state; when the operating power supply is de-energized, the vacuum load switch is in the "off" position. When the operating handle is in the "manual closed" position, the vacuum load switch is always in the "closed" state regardless of whether the operating power supply is electrified or not. Moreover, the manual operating mechanism can adopt a trigger system so that the speed of opening/closing has nothing to do with the operating speed of the handle.

It can be understood that, in order to prevent the above-mentioned vacuum load switch from being destroyed by lightning in thunderstorm weather, the above-mentioned vacuum load switch of the present application further includes a lightning arrester installed on each phase of the vacuum load switch.

It can be understood that, in order to improve the creepage distance and anti-pollution performance of the vacuum load switch, the structure of the incoming and outgoing lines of the above-mentioned vacuum load switch in the present application can adopt a porcelain sheathed cable structure.

In the prior art, the operating shaft 12 used by the general vacuum load switch is not suitable for an insulating shaft because it is in the air, so a metal rotating shaft is generally used to operate the moving contact of the vacuum interrupter through the insulator. Since SF6 gas is used as the phase-to-phase and ground-to-ground insulating medium in the technical solution disclosed above in the application, an insulating shaft can be used; thereby reducing the number of parts and the quality of the moving parts of the vacuum load switch, and when the opening/closing speed is satisfied The lower operating force of the operating mechanism is reduced, and the structure is simpler; therefore, it has the advantages of simple structure, small operating force, and high stability of mechanical properties.

The structure of the insulating shaft of the vacuum load switch mentioned above in the present application may include: a steel core and insulating material molded on the steel core.

It can be understood that, in order to facilitate the lifting of the vacuum load switch, moving brackets 12 are provided on both sides of the housing at a position above the assembly of the porcelain sleeve at the isolation end.

It can be understood that, in order to facilitate the user to check the operation status of the above-mentioned vacuum load switch, the above-mentioned vacuum load switch also includes: a power indicator light, a self-test indicator light and a fault indicator light arranged on the casing or the control device, and The reset button is used to control the reset of the fault indicator light.

It can be understood that, in order to further ensure the airtightness of the vacuum load switch, rubber seals are used between the housing and the upper cover of the vacuum load switch, the housing and the mechanism cover, and the housing and the isolation end porcelain sleeve. As the rotating pointer shaft and handle shaft are sealed with double-layer "skeleton oil seal" type sealing rings.

Each embodiment in this specification is described in a progressive manner, each embodiment focuses on the difference from other embodiments, and the same and similar parts of each embodiment can be referred to each other.

The above description of the disclosed embodiments enables those skilled in the art to realize or use the utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. a vacuum load switch, is characterized in that, comprising:

Vacuum load switch body;

What be arranged on that vacuum load switch shuts carries out data interaction for crossing communication line with substation equipment, and according to the control device that the data message of substation equipment transmission controls vacuum load switch body;

Described vacuum load switch body comprises: the assembling of isolation end insulator, current transformer, isolation fracture, isolation fracture operation shaft insulation, vacuum interrupter operation shaft insulation, boom hoisting, housing, vacuum interrupter, the assembling of interrupting porcelain insulator cable, operating mechanism and operating grip.

2. vacuum load switch according to claim 1, is characterized in that, comprising:

SF6 gas is filled with in described vacuum load switch housing and mechanism's cover.

3. vacuum load switch according to claim 1, is characterized in that, described operating mechanism, comprising:

For controlling automatic manipulation mechanism that described vacuum load switch divides/close a floodgate and manual-operating mechanism.

4. vacuum load switch according to claim 1, is characterized in that, also comprises:

Be arranged on the lightning arrester in each phase of described vacuum load switch.

5. vacuum load switch according to claim 1, is characterized in that, comprising:

The line structure of described vacuum load switch adopts the insulator construction of cable.

6. vacuum load switch according to claim 1, is characterized in that, comprising:

The structure of the shaft insulation of described vacuum load switch comprises: steel core and the insulating material be embossed on steel core.

7. vacuum load switch according to claim 2, is characterized in that, comprising:

The operating axis of described vacuum load switch is insulation rotating shaft.

8. vacuum load switch according to claim 1, is characterized in that, also comprises:

Described housing both sides, the position be positioned at above the assembling of isolation end insulator are provided with traversing carriage.

9. vacuum load switch according to claim 1, is characterized in that, also comprises:

Be arranged on the power supply indicator on described housing or control device, self-inspection indicator light and malfunction indicator lamp, and for controlling the reset key that described malfunction indicator lamp resets.

10. vacuum load switch according to claim 1, is characterized in that, comprising:

The housing of described vacuum load switch and upper cover, housing and mechanism cover, housing and isolation end insulator adopt rubber seal between assembling.