CN219800731U

CN219800731U - High-voltage isolating switch convenient to overhaul

Info

Publication number: CN219800731U
Application number: CN202222418653.4U
Authority: CN
Inventors: 余胜锋; 马武龙; 王立兴
Original assignee: Xi'an Haote Power Circuit Breaker Manufacture Co ltd
Current assignee: Xi'an Haote Power Circuit Breaker Manufacture Co ltd
Priority date: 2022-09-13
Filing date: 2022-09-13
Publication date: 2023-10-03
Anticipated expiration: 2032-09-13

Abstract

The utility model relates to the technical field of high-voltage isolating switches, in particular to a high-voltage isolating switch convenient to overhaul, which comprises an upright post, wherein the top of the upright post is fixedly connected with a base, an incoming line isolating switch and a soft start isolating switch are arranged above the base, and an incoming line isolating operation mechanism and a soft start isolating operation mechanism are respectively arranged below the incoming line isolating switch and the soft start isolating switch; according to the utility model, the incoming line isolation operating mechanism and the soft start isolation operating mechanism are arranged, so that the incoming line isolation switch and the soft start isolation switch can be controlled conveniently and rapidly, the maintenance is convenient, the operation is convenient and the safety is high without any tool in the operation process, the safety in operation can be ensured by arranging the insulating column, and when the device is used, the rotating piece and the insulating column are driven to move downwards by driving the pull rod, the moving contact is driven to move downwards by the insulating column, the moving contact is connected with the fixed contact, the circuit is connected, and the operation is convenient.

Description

High-voltage isolating switch convenient to overhaul

Technical Field

The utility model relates to the technical field of high-voltage isolating switches, in particular to a high-voltage isolating switch convenient to overhaul.

Background

The high-voltage isolating switch is an important switching device in power plants and substation electrical systems, and is matched with a high-voltage circuit breaker. The isolating switch is suitable for high-voltage transmission lines with three-phase alternating current of 50Hz and rated voltage of 12KV and above. The high-voltage equipment is used for switching on, off or converting the line under the condition of voltage and no load. The main functions are as follows: the safety of the high-voltage electric appliance and the device during maintenance work is ensured, the high-voltage electric appliance and the device play a role of isolating voltage, cannot be used for cutting off and throwing load current and cutting off and shorting current, and can only be used for certain switching operations without generating strong electric arcs, namely, the high-voltage electric appliance and the device have no arc extinguishing function; the voltage classes are divided into an indoor type and an outdoor type according to different installation places, and are divided into a single column type, a double column type and a three column type according to the number of insulating columns, and each voltage class is provided with optional equipment.

Most of the existing isolating switches are assembled and matched with each other by the incoming line isolating switch and the soft start isolating switch, so that the isolating switch is inconvenient to install, large in occupied area and inconvenient to maintain due to the fact that power off and power on are needed by means of special tools in the maintenance process, and tools cannot be provided in time when emergency occurs.

Disclosure of Invention

In view of the above, the utility model provides a high-voltage isolating switch which is convenient to overhaul, has compact structure and convenient installation, can be subjected to outage overhaul without other tools when the high-voltage isolating switch is required to be subjected to outage maintenance, and is convenient to operate and high in safety.

In order to solve the technical problems, the utility model provides a high-voltage isolating switch convenient to overhaul, which comprises an upright post, wherein the top of the upright post is fixedly connected with a base, an incoming line isolating switch and a soft start isolating switch are arranged above the base, and an incoming line isolating operation mechanism and a soft start isolating operation mechanism are respectively arranged below the incoming line isolating switch and the soft start isolating switch;

the wire inlet isolation operating mechanism is identical to the soft start isolation operating mechanism in structure and comprises an insulating column, a rotating piece and a pull rod, wherein the top end of the insulating column is movably connected with the bottom of the moving contact, the bottom end of the insulating column is movably connected with the top end of the pull rod, one end of the rotating piece is hinged to the base, and the other end of the rotating piece is hinged to the pull rod.

Through setting up inlet wire isolation operating device and soft isolation operating device that opens, on the one hand can be convenient respectively inlet wire isolator, soft isolation switch that opens is controlled, and convenient maintenance, on the other hand need not to operate with the help of the instrument again in the operation process, convenient operation and security are high, through setting up the insulated column, security when can guarantee the operation, when using, through driving the pull rod, the pull rod drives rotation piece and insulated column downwardly moving, and the insulated column drives the moving contact downwardly moving to make the moving contact be connected with the static contact, the switch-on circuit, convenient operation.

Further, the incoming line isolator includes a plurality of evenly distributed in the pillar insulator of base top both sides, and pillar insulator top of both sides all is provided with the static contact, still is equipped with the support column between two adjacent pillar insulators, and support column top swing joint has two and pillar insulator position corresponding moving contact, moving contact with static contact looks adaptation.

Further, still be provided with the static contact on the support column top, soft start isolator include one end with prop insulator articulated soft start resistance, soft start resistance's the other end with the static contact on the support column is connected, through setting up soft start resistance, can reduce impulse current in order to play overcurrent protection.

Further, the base outside still is provided with ground connection isolator, ground connection isolator with inlet wire isolator cooperation is used, and ground connection isolator's setting prevents on the one hand that there is residual charge on the consumer after the disconnection power, endangers maintenance electrician's safety, plays the effect of discharging, on the other hand prevents the inside trouble of circuit breaker, and incomplete brake separation, the consumer is still electrified after the brake separation operation, endangers maintenance electrician's safety, through closing ground connection isolator, makes upper circuit breaker protection action tripping operation to play the effect of protection personal safety.

Further, the bottom of the grounding isolating switch is also provided with a grounding isolating operation mechanism for controlling the opening and closing of the grounding isolating switch, and the grounding isolating operation mechanism is arranged, so that the operation is more convenient and safer.

Further, the ground connection isolation operating device includes first connecting rod, second connecting rod, cam and dwang, first connecting rod with the base rotates to be connected, and first connecting rod runs through a plurality of isolator and with isolator's one end fixed connection, second connecting rod one end with first connecting rod swing joint, the second connecting rod is used for driving first connecting rod and rotates, the other end and the cam of second connecting rod are articulated, and the cam is applicable to driving the second connecting rod and removes, dwang and cam fixed connection, and the dwang is applicable to driving the cam and rotates.

Further, the model of the post insulator is ZSK-40.5 stain-resistant post insulator, and the height of the post insulator is 600mm.

Further, the support column is made of insulating materials, so that safety performance is guaranteed.

The technical scheme of the utility model has the following beneficial effects:

1. according to the utility model, the incoming line isolation operating mechanism and the soft start isolation operating mechanism are arranged, so that the incoming line isolation switch and the soft start isolation switch can be controlled conveniently and rapidly, the maintenance is convenient, the operation is convenient and the safety is high without any tool in the operation process, the safety in operation can be ensured by arranging the insulating column, and when the device is used, the rotating piece and the insulating column are driven to move downwards by driving the pull rod, the moving contact is driven to move downwards by the insulating column, the moving contact is connected with the fixed contact, the circuit is connected, and the operation is convenient.

2. According to the utility model, the incoming line isolating switch and the soft start isolating switch are arranged and are mounted on the base, so that the integrated level is high, the installation is convenient, and the installation efficiency is improved.

3. According to the utility model, the grounding isolating switch is arranged and matched with the incoming line isolating switch for use, and the grounding isolating operating mechanism is linked with the incoming line isolating operating mechanism, so that the sequential actions of main separation-ground combination and ground separation-main combination can be ensured, namely the safety of operation is ensured, and a self-protection function is formed.

Drawings

FIG. 1 is a schematic diagram of the front view of the present utility model;

FIG. 2 is a schematic side view of a partial structure of the present utility model;

FIG. 3 is a schematic top view of the present utility model;

FIG. 4 is a schematic view of the cross-sectional structure in the direction A-A in FIG. 2;

FIG. 5 is a schematic diagram of a wire-feeding isolation operating mechanism according to the present utility model;

fig. 6 is an electrical schematic of the present utility model.

In the figure: 1. a base; 2. a post insulator; 3. a moving contact; 4. a soft start resistor; 5. a soft start isolation operating mechanism; 6. the incoming line isolation operating mechanism; 61. an insulating column; 62. a rotating member; 63. a pull rod; 7. a column; 9. a stationary contact; 10. a grounding isolating switch; 11. a grounding isolation operating mechanism; 111. a first link; 112. a second link; 113. a cam; 114. a rotating lever; 12. and (5) supporting the column.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to fig. 1 to 6 of the embodiments of the present utility model. It will be apparent that the described embodiments are some, but not all, embodiments of the utility model. All other embodiments, which are obtained by a person skilled in the art based on the described embodiments of the utility model, fall within the scope of protection of the utility model.

To solve the above problems, as shown in fig. 1 to 6: the utility model provides a high-voltage isolating switch convenient to overhaul, including stand 7, stand 7 top fixedly connected with base 1, base 1 top bilateral symmetry is equipped with a plurality of evenly distributed's pillar insulator 2, pillar insulator 2 top of both sides is all fixed mounting has static contact 9, still be equipped with support column 12 between two adjacent pillar insulators 2, support column 12 top swing joint has two moving contact 3 corresponding with pillar insulator 2 positions, wherein moving contact 3 of one side is as the inlet wire end, moving contact 3 of the opposite side is as the load end, moving contact 3 and the static contact 9 cooperation of inlet wire end use form inlet wire isolating switch, the bottom of two moving contact 3 still is provided with the inlet wire isolation operating device 6 that is used for controlling inlet wire isolating switch and opens and shuts, still be provided with soft start isolating switch between pillar insulator 2 of support column 12 top and one of them side, soft start isolating switch's bottom is provided with the soft start isolating operating device 5 that is used for controlling soft start isolating switch and opens and shut.

Through setting up inlet wire isolation operating mechanism and soft isolation operating mechanism that opens, on the one hand, can be convenient respectively inlet wire isolator, soft isolation switch of opening is controlled, the convenient maintenance, on the other hand need not to operate with the help of the instrument any more in the course of the operation, convenient operation and security are high, through setting up insulating column 61, security when can guaranteeing the operation, when using, through driving pull rod 63, pull rod 63 drives rotation piece 62 and insulating column 61 downwardly moving, insulating column 61 drives moving contact 3 downwardly moving to make moving contact 3 and fixed contact 9 be connected, the switch-on circuit, convenient operation.

Specifically, a high-voltage isolating switch convenient to overhaul comprises a stand 7, the bottom of the stand 7 is fixed on the horizontal ground, a base 1 is fixedly connected to the top of the stand 7, the base 1 is composed of a plurality of channel steel, a plurality of evenly distributed post insulators 2 are symmetrically arranged on two sides of the top of the base 1, the model of each post insulator 2 is ZSW-40.5 dirt-resistant post insulator 2, the height of each post insulator 2 is 600mm, static contacts are fixedly arranged on the top ends of the post insulators 2 on two sides, a support column 12 is further arranged between two adjacent post insulators 2, the support column 12 is made of insulating materials, the bottom end of the support column 12 is fixedly connected with the base 1, two moving contacts 3 corresponding to the positions of the post insulators 2 are movably connected to the top end of the support column 12, one moving contact 3 serves as an inlet end, the other moving contact 3 serves as an external load end, the moving contact 3 is matched with the static contacts of the inlet end to form an inlet wire isolating switch, the bottoms of the two moving contacts 3 are further provided with a soft isolating operation mechanism 6 for controlling the inlet wire isolating switch, the soft switch is further arranged between the top end of the support column 12 and the post insulators 2 on one side, the soft switch is further provided with a soft switch opening and closing soft switch, the soft switch is further arranged at the bottom of the soft switch opening and closing the soft switch opening and opening the soft switch is controlled.

This embodiment is through setting up inlet wire isolator, soft isolation switch that opens to with inlet wire isolator, soft isolation switch all install base 1 on, the integrated level is high, the installation of being convenient for, has improved installation effectiveness, through setting up inlet wire isolation operating device 6, soft isolation operating device 5 that opens, on the one hand can be convenient respectively inlet wire isolator, soft isolation switch control, on the other hand need not to operate with the help of the instrument again in the operation process, convenient operation and security are high.

According to one embodiment of the present utility model, as shown in fig. 1, the top end of the support column 12 is also provided with a static contact, the soft start isolating switch includes a soft start resistor 4 with one end hinged with the support column insulator 2, and the other end of the soft start resistor 4 is connected with the static contact on the support column 12, and by setting the soft start resistor 4, the impact current can be reduced to play the role of overcurrent protection.

According to another embodiment of the present utility model, as shown in fig. 5, the incoming line isolation operating mechanism 6 has the same structure as the soft start isolation operating mechanism 5, and includes an insulation column 61, a rotating member 62 and a pull rod 63, wherein the top end of the insulation column 61 is movably connected with the bottom of the moving contact 3, the bottom end of the insulation column 61 is movably connected with the top end of the pull rod 63, one end of the rotating member 62 is hinged with the base 1, and the other end of the rotating member 62 is hinged with the pull rod 63.

In this embodiment, through setting up the insulating column 61, can guarantee the security when operating, when using, through driving pull rod 63, pull rod 63 drives rotation piece 62 and insulating column 61 and moves down, and insulating column 61 drives moving contact 3 and moves down to make moving contact 3 and stationary contact be connected, the switch-on circuit, convenient operation.

In one embodiment of the present utility model, as shown in fig. 1-3, the outside is further provided with a grounding isolation switch 10, the grounding isolation switch 10 is used in cooperation with a wire inlet isolation switch, the bottom of the grounding isolation switch 10 is further provided with a grounding isolation operation mechanism 11 for controlling the opening and closing of the grounding isolation switch 10, the grounding isolation operation mechanism 11 comprises a first connecting rod 111, a second connecting rod 112, a cam 113 and a rotating rod 114, the first connecting rod 111 is rotatably connected with the base 1, the first connecting rod 111 penetrates through a plurality of isolation switches and is fixedly connected with one end of the isolation switch, one end of the second connecting rod 112 is movably connected with the first connecting rod 111, the second connecting rod 112 is used for driving the first connecting rod 111 to rotate, the other end of the second connecting rod 112 is hinged with the cam 113, the cam 113 is suitable for driving the second connecting rod 112 to move, the rotating rod 114 is fixedly connected with the cam 113, and the rotating rod 114 is suitable for driving the cam 113 to rotate.

In this embodiment, when the grounding isolating switch 10 is operated, the rotating rod 114 is driven to rotate, the rotating rod 114 drives the cam 113 to rotate, the cam 113 drives the second connecting rod 112 to move, the second connecting rod 112 drives the first connecting rod 111 to rotate, and the movable end of the grounding isolating switch 10 rotates, so that the opening and closing control is realized, and the operation is convenient.

According to the utility model, the incoming line isolating switch and the soft start isolating switch are arranged and are both arranged on the base 1, so that the integrated level is high, the installation is convenient, the installation efficiency is improved, and the incoming line isolating operation mechanism 6 and the soft start isolating operation mechanism 5 are arranged, so that the incoming line isolating switch and the soft start isolating switch can be controlled conveniently and respectively on one hand, and on the other hand, the operation is not needed by means of tools in the operation process, and the operation is convenient and the safety is high; through setting up ground isolator 10, ground isolator 10 and inlet wire isolator cooperation use to through ground isolator operating device 11 and inlet wire isolator operating device 6 linkage, can guarantee that the owner divides-ground to close, the ground divides-the order action that closes, guarantees the security of operation promptly, forms self preservation protects the function.

In the present utility model, unless explicitly specified and defined otherwise, for example, it may be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other or in interaction with each other, unless explicitly defined otherwise, the meaning of the terms described above in this application will be understood by those of ordinary skill in the art in view of the specific circumstances.

While the foregoing is directed to the preferred embodiments of the present utility model, it will be appreciated by those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present utility model, and such modifications and adaptations are intended to be comprehended within the scope of the present utility model.

Claims

1. The utility model provides a high voltage isolator convenient to overhaul which characterized in that: the device comprises an upright post (7), wherein the top of the upright post (7) is fixedly connected with a base (1), an incoming line isolating switch and a soft start isolating switch are arranged above the base (1), and an incoming line isolating operating mechanism (6) and a soft start isolating operating mechanism (5) are respectively arranged below the incoming line isolating switch and the soft start isolating switch;

the wire inlet isolation operating mechanism (6) and the soft start isolation operating mechanism (5) are identical in structure and comprise an insulating column (61), a rotating piece (62) and a pull rod (63), the top end of the insulating column (61) is movably connected with the bottom of the moving contact (3), the bottom end of the insulating column (61) is movably connected with the top end of the pull rod (63), one end of the rotating piece (62) is hinged with the base (1), and the other end of the rotating piece (62) is hinged with the pull rod (63);

the incoming line isolating switch comprises a plurality of post insulators (2) which are uniformly distributed on two sides of the top of the base (1), static contacts (9) are arranged at the top ends of the post insulators (2) on two sides, a support column (12) is further arranged between two adjacent post insulators (2), two moving contacts (3) which correspond to the post insulators (2) in position are movably connected to the top ends of the support columns (12), and the moving contacts (3) are matched with the static contacts (9);

the top end of the support column (12) is also provided with a fixed contact (9), the soft start isolating switch comprises a soft start resistor (4) with one end hinged with the support column insulator (2), and the other end of the soft start resistor (4) is connected with the fixed contact (9) on the support column (12).

2. A high voltage isolator for facilitating access as claimed in claim 1, wherein: the base (1) outside still is provided with ground connection isolator (10), and ground connection isolator (10) with inlet wire isolator cooperation is used.

3. A high voltage isolator for facilitating access as claimed in claim 2, wherein: the bottom of the grounding isolating switch (10) is also provided with a grounding isolating operation mechanism (11) for controlling the opening and closing of the grounding isolating switch (10).

4. A high voltage isolator for facilitating access as claimed in claim 3, wherein: the grounding isolation operating mechanism (11) comprises a first connecting rod (111), a second connecting rod (112), a cam (113) and a rotating rod (114), wherein the first connecting rod (111) is rotationally connected with the base (1), the first connecting rod (111) penetrates through a plurality of isolating switches and is fixedly connected with one end of each isolating switch, one end of the second connecting rod (112) is movably connected with the first connecting rod (111), the second connecting rod (112) is used for driving the first connecting rod (111) to rotate, the other end of the second connecting rod (112) is hinged with the cam (113), the cam (113) is suitable for driving the second connecting rod (112) to move, the rotating rod (114) is fixedly connected with the cam (113), and the rotating rod (114) is suitable for driving the cam (113) to rotate.

5. A high voltage isolator for facilitating access as claimed in claim 1, wherein: the model of the post insulator (2) is ZSK-40.5 stain-resistant post insulator (2), and the height of the post insulator (2) is 600mm.

6. A high voltage isolator for facilitating access as claimed in claim 1, wherein: the support column (12) is made of insulating materials.