CN215956031U

CN215956031U - Secondary separating current-limiting device

Info

Publication number: CN215956031U
Application number: CN202122341841.7U
Authority: CN
Inventors: 蔡华春
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-09-27
Filing date: 2021-09-27
Publication date: 2022-03-04
Anticipated expiration: 2031-09-27

Abstract

The utility model discloses a secondary separation current-limiting device, which comprises an insulating cylinder, wherein the bottom of the insulating cylinder is fixedly provided with an underframe, the inside of the underframe is fixedly provided with a fan, the bottom of the underframe is provided with a dustproof mounting mechanism, and the inside of the insulating cylinder is sequentially connected with an opening coil, an eddy current disc, an opening retaining magnet, a suction plate and a closing retaining magnet in a penetrating manner from bottom to top through a middle shaft screw and a middle shaft screw sleeve. This secondary separation current limiting device carries out long-range electric control through the controller to through separating brake coil, vortex dish, separating brake holding magnet, suction disc and the electrical property transmission between the combined floodgate holding magnet, not only can realize overhauing secondary equipment device under the power failure, utilize long term reactor just to count the unable combined floodgate under the circuit breaker trouble moreover, whole circuit still can normal use, can not cause the circuit to have a power failure, with this maintenance and the maintenance that has improved the security and make things convenient for later stage equipment.

Description

Secondary separating current-limiting device

Technical Field

The utility model relates to the technical field of electric power use, in particular to a secondary separation current limiting device.

Background

The transmission of electric energy, transformation, distribution and utilization of electricity together form the whole function of the electric power system. Through power transmission, a power plant and a load center which are far away from each other (up to thousands of kilometers) are connected, so that the development and the utilization of electric energy exceed the limit of regions; compared with the transmission of other energy sources (such as coal transmission, oil transmission and the like), the transmission of electricity has the advantages of small loss, high benefit, flexibility, convenience, easy regulation and control and less environmental pollution; the power transmission can also connect power plants at different places to realize peak-valley regulation; transmission is an important embodiment of the superiority of electric energy utilization, and is an important energy artery in modern society.

The use of an unseparated flow limiting device has previously caused a number of inconveniences in service for the repair and maintenance of the equipment, and has presented the following problems:

1. secondary equipment devices such as a control device and a power supply cannot be overhauled under the condition of primary electrification;

2. the short-time reactor is used in the past, and because secondary equipment devices such as control devices and power supplies in the past and high-voltage lines are on the same potential, once a breaker fails to close, the short-time reactor is burnt certainly or a superior switch needs to be jumped, so that the power failure range is expanded.

Currently, the present invention provides a secondary separation flow restriction device for this purpose.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides a secondary separation current limiting device, which solves the problems that the existing non-separation current limiting device is inconvenient to overhaul and maintain, and once a local breaker fails, large-scale power failure is easily caused.

In order to achieve the purpose, the utility model is realized by the following technical scheme: the secondary separation current-limiting device comprises an insulating cylinder, wherein a bottom frame is fixedly arranged at the bottom of the insulating cylinder, a fan is fixedly arranged inside the bottom frame, a dustproof mounting mechanism is arranged at the bottom of the bottom frame, an opening coil, an eddy current disc, an opening retaining magnet, a suction plate and a closing retaining magnet are sequentially connected inside the insulating cylinder from bottom to top through a center shaft screw and a center shaft screw sleeve, the suction plate and the closing retaining magnet are tightly connected, an insulator is fixedly connected to the top of the center shaft screw, a solid sealing pole column is wrapped on the top of the insulator, the dustproof mounting mechanism comprises a mounting plate, a dust filter screen is fixedly arranged on the inner surface of the mounting plate, a mounting groove is formed in the surface of the bottom frame, a placing groove is formed in the surface of the mounting plate, a rotating column is rotatably connected to the inner surface of the placing groove, and a rotating handle is fixedly connected to the top of the rotating column, the outer surface of the rotating column enables the traction rope to stretch out and draw back through the traction unit, one end of the traction rope is fixedly connected with an installation block, and the outer surface of the installation block is connected with the inner surface of the installation groove in a sliding mode.

Preferably, the traction unit comprises a winding wheel fixedly mounted on the surface of the rotating column and a recovery spring with two ends fixedly connected with the rotating column and the placing groove, and the outer surface of the winding wheel is fixedly connected with one end of the traction rope.

Preferably, the surface of the solid-sealed polar pole is fixedly provided with a busbar, and the busbar penetrates through and extends to the outside of the insulating cylinder.

Preferably, an insulating porcelain bottle is fixedly mounted at the top of the busbar, and a reactor is fixedly connected to the top of the insulating porcelain bottle.

Preferably, a connecting bar is fixedly installed between the bottom of the reactor and the top of the busbar, and a connecting bar is fixedly installed between the busbar and the extension frame of the insulating cylinder.

Preferably, the inside original of insulating cylinder passes through secondary junctor and controller electric connection.

Advantageous effects

The utility model provides a secondary separation current limiting device. Compared with the prior art, the method has the following beneficial effects:

(1) this secondary separation current limiting device carries out long-range electric control through the controller to through separating brake coil, vortex dish, separating brake keeps magnet, suction disc and the electric property transmission of closing a floodgate between keeping magnet, not only can realize overhauing secondary equipment device under the power failure, utilize the long term reactor just to calculate unable combined floodgate under the circuit breaker trouble moreover, whole circuit still can normal use, can not cause the circuit to have a power failure, with this maintenance and the maintenance that has improved the security and make things convenient for later stage equipment.

(2) This secondary separation current limiting device through being provided with dustproof installation mechanism, utilizes the fan to dispel the heat to the inside work original paper of this insulating cylinder, through the elasticity that resumes the spring for the rotation of wind-up wheel on the rotation post, thereby driven the joint between installation piece and the mounting groove, not only can prevent that external granule from entering into the inside of insulating cylinder among the heat dissipation process, change the washing moreover, can effectual improvement the device's thermal diffusivity.

Drawings

FIG. 1 is a front view of the internal structure of the present invention;

FIG. 2 is an enlarged view of a portion of the present invention;

FIG. 3 is a bottom view of the dust-proof mounting mechanism of the present invention;

FIG. 4 is a front cross-sectional view of the dust-proof mounting mechanism of the present invention.

In the figure: 1-reactor, 2-insulating porcelain insulator, 3-bus, 4-connecting bar, 5-insulating cylinder, 6-solid sealed pole, 7-current transformer, 8-vortex disc, 9-insulator, 10-middle shaft screw, 11-closing holding magnet, 12-suction plate, 13-opening holding magnet, 14-middle shaft screw sleeve, 15-opening coil, 16-closing coil, 17-blower, 18-secondary connecting line, 19-controller, 20-bottom frame, 21-dustproof mounting mechanism, 211-mounting plate, 212-dust filtering net, 213-mounting groove, 214-placing groove, 215-rotating column, 216-rotating handle, 217-traction unit, 217-1-winding wheel, 217-2-recovery spring, 218-traction ropes, 219-mounting blocks.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides the following technical solutions: a secondary separation current limiting device comprises an insulating cylinder 5, wherein the bottom of the insulating cylinder 5 is fixedly provided with a bottom frame 20, the inside of the bottom frame 20 is fixedly provided with a fan 17, the bottom of the bottom frame 20 is provided with a dustproof mounting mechanism 21, the inside of the insulating cylinder 5 is sequentially connected with a separating coil 15, an eddy current disc 8, a separating brake holding magnet 13, a suction plate 12 and a closing holding magnet 11 in a penetrating manner from bottom to top through a middle shaft screw rod 10 and a middle shaft screw sleeve 14, the suction plate 12 is tightly connected with the closing holding magnet 11, the top of the middle shaft screw rod 10 is fixedly connected with an insulator 9, the top of the insulator 9 is wrapped with a solid-sealed polar pole 6, the surface of the solid-sealed polar pole 6 is fixedly provided with a bus bar 3, the bus bar 3 extends to the outside of the insulating cylinder 5 in a penetrating manner, the top of the bus bar 3 is fixedly provided with an insulating porcelain bottle 2, the top of the insulating porcelain bottle 2 is fixedly connected with a reactor 1, and a connecting bar 4 is fixedly arranged between the bottom of the reactor 1 and the top of the bus bar 3, a bus bar (7) is fixedly installed between extension frames of a bus bar (3) and an insulating cylinder (5), an internal original piece of the insulating cylinder (5) is electrically connected with a controller (19) through a secondary connecting line (18), wherein the length of the secondary connecting line (18) is more than 10 m, in order to avoid interference between the insulating cylinder (5) and the controller (19), the controller (19) is used for carrying out remote electrical control, and through electrical transmission among a brake separating coil (15), a vortex disc (8), a brake separating retaining magnet (13), a suction plate (12) and a closing retaining magnet (11), not only can secondary equipment device maintenance be realized without power failure, but also the circuit breaker can not be closed under the fault by utilizing a long-time reactor, the whole circuit can still be normally used without causing power failure, so that the safety is improved, the maintenance and the later-stage equipment is convenient to maintain, a dustproof installation mechanism (21) comprises an installation plate (211), and a dust filtering net (212) is fixedly installed on the inner surface of the installation plate (211), the surface of the bottom frame 20 is provided with a mounting groove 213, a sliding clamping connection is realized between the mounting block 219 and the mounting groove 213, the surface of the mounting plate 211 is provided with a placing groove 214, the inner surface of the placing groove 214 is rotatably connected with a rotating column 215, the top of the rotating column 215 is fixedly connected with a rotating handle 216, the rotating handle 216 is convenient for manual operation during maintenance, the outer surface of the rotating column 215 enables a traction rope 218 to extend and retract through a traction unit 217, the traction unit 217 comprises a winding wheel 217-1 fixedly mounted on the surface of the rotating column 215 and a restoring spring 217-2, two ends of the restoring spring are fixedly connected with the rotating column 215 and the placing groove 214, the outer surface of the winding wheel 217-1 is fixedly connected with one end of the traction rope 218, one end of the traction rope 218 is fixedly connected with the mounting block 219, the outer surface of the mounting block 219 is slidably connected with the inner surface of the mounting groove 213, and the fan 17 is used for heat dissipation of internal working elements of the insulating cylinder 5 by being provided with a dustproof mounting mechanism 21, through the elasticity of the restoring spring 217-2, the winding wheel 217-1 on the rotating column 215 rotates, so that the mounting block 219 is driven to be clamped with the mounting groove 213, external particles can be prevented from entering the insulating cylinder 5 in the heat dissipation process, replacement and cleaning are carried out, the heat dissipation performance of the device can be effectively improved, and meanwhile, the content which is not described in detail in the specification belongs to the prior art which is known by the technical personnel in the field.

When the device works, after a short-circuit current is generated, the controller 19 detects the short-circuit current through the current transformer 7 and then reaches the action threshold of the controller 19, the power supply in the controller 19 receives an action command sent by the controller and enables the opening coil 15 to act to generate an eddy current through the secondary connecting line 18, so that the eddy current is induced by the eddy current disc 8, the eddy current disc 8 generates a magnetic field with the same polarity as that of the opening coil 15, the eddy current disc 8 starts to act, the middle shaft screw 10 and the insulator 9 are connected and penetrate through the middle shaft screw sleeve 14 and the suction plate 12 and connected, the middle shaft screw sleeve 14 is connected with the eddy current disc 8, the insulator 9 is connected with the solid-sealed pole 6, so that the middle shaft screw 10 is driven to act when the eddy current disc 8 acts, the middle shaft screw 10 drives the insulator 9 and the suction plate 12 to act, the insulator 9 drives the movable contact of the solid-sealed pole 6 to act downwards to complete the opening action, the opening action is kept at the opening position by the opening keeping magnet 13 after the suction plate 12 acts downwards, short-circuit current can flow to reactor 1 from connecting bar 4 through female arranging 3 after the circuit breaker opens the floodgate and play the restriction short-circuit current, when the periodic overhaul simultaneously, rotates the rotation that handle 216 drove rotation post 215 through rotating for wind-up pulley 217-1 drives haulage rope 218 and contracts, and has driven installation piece 219 through haulage rope 218 and break away from the inside of mounting groove 213, can dismantle mounting panel 211 and wash, and reverse operation can install.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Secondary separation current limiting device, including insulating cylinder (5), chassis (20), its characterized in that are installed in the bottom immobilization of insulating cylinder (5): a fan (17) is fixedly installed inside the bottom frame (20), a dustproof installation mechanism (21) is arranged at the bottom of the bottom frame (20), an opening coil (15), an eddy current disc (8), an opening holding magnet (13), an absorption plate (12) and a closing holding magnet (11) are sequentially connected inside the insulating cylinder (5) in a penetrating mode from bottom to top through a middle shaft screw rod (10) and a middle shaft screw sleeve (14), the absorption plate (12) and the closing holding magnet (11) are tightly connected, an insulator (9) is fixedly connected to the top of the middle shaft screw rod (10), and a solid-sealed pole (6) is wrapped on the top of the insulator (9);

including mounting panel (211) in dustproof installation mechanism (21), and the internal surface fixed mounting of mounting panel (211) has dust filter net (212), mounting groove (213) have been seted up on the surface of chassis (20), standing groove (214) have been seted up on the surface of mounting panel (211), the internal surface rotation of standing groove (214) is connected with rotates post (215), the top fixedly connected with who rotates post (215) rotates handle (216), the surface that rotates post (215) makes haulage rope (218) flexible through traction element (217), the one end fixedly connected with installation piece (219) of haulage rope (218), the surface of installation piece (219) and the internal surface sliding connection of mounting groove (213).

2. The secondary separating and flow limiting device of claim 1, wherein: the traction unit (217) comprises a winding wheel (217-1) fixedly mounted on the surface of the rotating column (215) and a recovery spring (217-2) with two ends fixedly connected with the rotating column (215) and the placing groove (214), and the outer surface of the winding wheel (217-1) is fixedly connected with one end of the traction rope (218).

3. The secondary separating and flow limiting device of claim 1, wherein: the surface of the solid-sealed polar pole (6) is fixedly provided with a busbar (3), and the busbar (3) penetrates through the insulating cylinder (5) and extends to the outside.

4. The secondary separating and flow limiting device of claim 3, wherein: the top fixed mounting who arranges (3) has insulating vase (2), and the top fixedly connected with reactor (1) of insulating vase (2).

5. The secondary separation flow-limiting apparatus according to claim 4, wherein: a connecting bar (4) is fixedly installed between the bottom of the reactor (1) and the top of the busbar (3), and a connecting bar (7) is fixedly installed between the busbar (3) and the extending frame of the insulating cylinder (5).

6. The secondary separating and flow limiting device of claim 1, wherein: the inner element of the insulating cylinder (5) is electrically connected with the controller (19) through a secondary connecting line (18).