CN218733245U

CN218733245U - Arc extinction, resonance elimination and overvoltage protection device

Info

Publication number: CN218733245U
Application number: CN202222993835.4U
Authority: CN
Inventors: 吴巧玲; 吴宁; 钱爱燕; 卢凡
Original assignee: Baoding Inuoer Electrical Equipment Co ltd
Current assignee: Baoding Inuoer Electrical Equipment Co ltd
Priority date: 2022-11-10
Filing date: 2022-11-10
Publication date: 2023-03-24
Anticipated expiration: 2032-11-10

Abstract

The utility model discloses an arc extinction harmonic elimination and overvoltage protection device, it includes the guard box, the guard box bottom all is equipped with the supporting leg all around, guard box inner chamber top is equipped with breather, breather includes the ventilation box, ventilation box fixed connection is in guard box inner chamber top, ventilation box bottom both sides all are equipped with the board of breathing in, be equipped with computer integrated control ware in the guard box, electric connection is equipped with high-pressure vacuum contactor on the computer integrated control ware, electric connection on the high-pressure vacuum contactor, electric connection is equipped with the fuse on the computer integrated control ware, electric connection is equipped with voltage transformer on the fuse, electric connection is equipped with earthing device on the computer integrated control ware, the last connection of earthing device is equipped with heat dissipation ventilation unit, electric connection is equipped with the arc extinction harmonic elimination voltage limiter on the computer integrated control ware, fixed connection is equipped with the panel on the guard box rear side lateral wall, the guard box openly is equipped with the door. The utility model discloses be convenient for protect, facilitate the use.

Description

Arc extinction, resonance elimination and overvoltage protection device

Technical Field

The utility model relates to a voltage protection equipment field specifically is an arc extinction harmonic elimination and overvoltage protection device.

Background

At present, with the development of power networks, the stability and safety of the power networks are deeply concerned, and the main factors of the safety of the critical power networks are arc grounding, resonance and overvoltage, single-phase intermittent arc grounding, and the arc grounding overvoltage and ferromagnetic resonance overvoltage excited by the arc grounding overvoltage are generated simultaneously, wherein the single-phase arc grounding overvoltage is the most serious. The traditional electric network arc extinction, resonance elimination and overvoltage protection device is immature in technology, and cannot conduct arc extinction, resonance elimination and overvoltage protection on the electric network quickly and effectively.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome above technical defect, provide an arc extinction harmonic elimination and overvoltage protection device.

In order to solve the above problem, the technical scheme of the utility model is that: the arc extinction, resonance elimination and overvoltage protection device comprises a protection box, wherein supporting legs are fixedly connected with the periphery of the bottom of the protection box, an air interchanger is arranged at the top of an inner cavity of the protection box and comprises an air interchanger, the air interchanger is fixedly connected to the top of the inner cavity of the protection box, air suction plates are fixedly connected to two sides of the bottom of the air interchanger and are fixedly connected with the inner side wall of the protection box, a microcomputer integrated controller is fixedly connected to the inside of the protection box and is provided with a high-voltage vacuum contactor in an electric connection mode, the high-voltage vacuum contactor is electrically connected in an electric connection mode, a fuse is arranged on the microcomputer integrated controller in an electric connection mode, a voltage transformer is arranged on the fuse in an electric connection mode, a grounding device is arranged on the microcomputer integrated controller in an electric connection mode, a heat dissipation and ventilation device is connected to the grounding device, a arc extinction, resonance elimination and voltage limiter is arranged on the microcomputer integrated controller in an electric connection mode, a battery panel is fixedly connected to the side wall of the rear side of the protection box, and a door is arranged on the front of the protection box.

Further, the supporting legs are of T-shaped structures.

Furthermore, both sides of the upper part of the protection box are fixedly connected with hanging rings.

Further, the heat dissipation and ventilation device comprises an air exhaust box, the air exhaust box is fixedly connected with the bottom of the inner cavity of the protection box, an exhaust pipe is connected to the air exhaust box, and the exhaust pipe is fixedly connected with the bottom of the protection box.

Furthermore, the door is fixedly connected with an indicator light and a control panel.

Compared with the prior art, the utility model the advantage lie in:

1 this practicality is convenient for utilize high pressure vacuum contactor, computer integrated control ware, voltage transformer and fuse to forming a system when using to protect voltage, the demand in convenient better adaptation market protects voltage, and the arc extinction harmonic elimination device in this device can be real-time with the circumstances of guard box with the pilot lamp in addition, feeds back.

Drawings

Fig. 1 is a schematic diagram of an internal structure of an arc and resonance elimination and overvoltage protection device provided by the present invention;

FIG. 2 is a front view of an arc and resonance elimination and overvoltage protection device of the present invention;

fig. 3 is a rear view of an arc and resonance elimination and overvoltage protection device according to the present invention.

As shown in the figure: 1. a protection box; 2. supporting legs; 3. a hoisting ring; 4. a ventilation device; 5. a ventilation box; 6. a gas suction plate; 7. a microcomputer integrated controller; 8. a high voltage vacuum contactor; 9. a fuse; 10. a voltage transformer; 11. a grounding device; 12. a heat dissipation and ventilation device; 13. an air extraction box; 14. an exhaust pipe; 15. an arc extinction and resonance elimination voltage limiter; 16. a battery plate; 17. a door; 18. an indicator light; 19. a control panel.

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 some embodiments of the present invention, not all embodiments; based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1 to 3, an arc extinction, resonance elimination and overvoltage protection device comprises a protection box 1, wherein support legs 2 are fixedly connected to the periphery of the bottom of the protection box 1, hanging rings 3 are fixedly connected to two sides above the protection box 1, the support legs 2 are of a T-shaped structure, an air interchanger 4 is arranged at the top of an inner cavity of the protection box 1, the air interchanger 4 comprises an air interchanger 5, the air interchanger 5 is fixedly connected to the top of the inner cavity of the protection box 1, air suction plates 6 are fixedly connected to two sides of the bottom of the air interchanger 5, the two air suction plates 6 are fixedly connected to the inner side wall of the protection box 1, a microcomputer integrated controller 7 is fixedly connected to the inside of the protection box 1, a high-voltage vacuum contactor 8 is electrically connected to the microcomputer integrated controller 7, a fuse 9 is electrically connected to the high-voltage vacuum contactor 8, a voltage transformer 10 is electrically connected to the microcomputer integrated controller 7, a grounding device 11 is connected to the grounding device 11, a ventilation integrated controller 7 is connected to the arc extinction, a resonance elimination controller 15 is arranged on the fuse 9, and a protection box side wall is fixedly connected to the protection box 1 and a protection door 16 is arranged.

The heat dissipation and ventilation device 12 comprises an air extraction box 13, the air extraction box 13 is fixedly connected with the bottom of the inner cavity of the protection box 1, an exhaust pipe 14 is connected to the air extraction box 13, the exhaust pipe 14 is fixedly connected with the bottom of the protection box 1, and an indicator lamp 18 and a control panel 19 are fixedly connected to the door 17.

In specific use, the voltage transformer 10 provides instantaneous change values of three-phase voltage and triangular voltage to the microcomputer integrated controller 7 in real time, the microcomputer integrated controller 7 processes information of the three-phase voltage and the triangular voltage, judges the nature of a fault and sends out corresponding instructions and signals, when an arc grounding fault occurs, the microcomputer integrated controller 7 receives the signals, rapidly processes and sends out the instructions and the signals to control the high-voltage vacuum contactor 8 to work so as to achieve the function of arc extinction, when resonance occurs, an opening triangular winding inside the voltage transformer 10 is in short circuit to perform resonance elimination, when the grounding fault occurs, the microcomputer integrated controller 7 compares the instantaneous amplitude, phase or transient component with the fault to accurately select a grounding circuit by using a relative principle and multiple criteria, and when the voltage is too high, the over-fuse 9 performs corresponding choke flow on the circuit so as to protect the safety of an electric appliance.

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 invention, the scope of which is defined in the appended claims and their equivalents.

The present invention and the embodiments thereof have been described above, but the description is not limited thereto, and the embodiment shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should understand that they should not be limited to the embodiments described above, and that they can design the similar structure and embodiments without departing from the spirit of the invention.

Claims

1. An arc extinction, resonance elimination and overvoltage protection device is characterized in that: it comprises a protective box (1), supporting legs (2) are fixedly connected with the periphery of the bottom of the protective box (1), the top of the inner cavity of the protection box (1) is provided with an air interchanger (4), the air interchanger (4) comprises an air interchanger box (5), the air exchanging box (5) is fixedly connected with the top of the inner cavity of the protection box (1), the two sides of the bottom of the air exchange box (5) are fixedly connected with air suction plates (6), the two air suction plates (6) are fixedly connected with the inner side wall of the protection box (1), a microcomputer integrated controller (7) is fixedly connected in the protection box (1), the microcomputer integrated controller (7) is electrically connected with a high-voltage vacuum contactor (8), the high-voltage vacuum contactor (8) is electrically connected, the microcomputer integrated controller (7) is electrically connected with a fuse (9), a voltage transformer (10) is electrically connected on the fuse (9), the microcomputer integrated controller (7) is electrically connected with a grounding device (11), the grounding device (11) is connected with a heat dissipation and ventilation device (12), the microcomputer integrated controller (7) is electrically connected with an arc and harmonic elimination voltage limiter (15), the solar cell panel protective box is characterized in that a cell panel (16) is fixedly connected to the side wall of the rear side of the protective box (1), and a door (17) is arranged on the front side of the protective box (1).

2. An arc and resonance extinction and overvoltage protection device as claimed in claim 1 wherein: the supporting legs (2) are of T-shaped structures.

3. An arc and resonance extinction and overvoltage protection device as claimed in claim 1 wherein: and both sides above the protection box (1) are fixedly connected with hanging rings (3).

4. An arc and resonance extinction and overvoltage protection device as claimed in claim 1 wherein: the heat dissipation and ventilation device (12) comprises an air suction box (13), the air suction box (13) is fixedly connected with the bottom of the inner cavity of the protection box (1), an exhaust pipe (14) is connected to the air suction box (13), and the exhaust pipe (14) is fixedly connected with the bottom of the protection box (1).

5. An arc and resonance extinction and overvoltage protection device as claimed in claim 1 wherein: an indicator light (18) and a control panel (19) are fixedly connected to the door (17).