CN218274214U

CN218274214U - Winding leakage protection device of power system transformer

Info

Publication number: CN218274214U
Application number: CN202222206314.XU
Authority: CN
Inventors: 王乾力; 李向阳; 曹庆春; 朱海彤; 李秀君
Original assignee: Chifeng Power Supply Co Of State Grid East Inner Mongolia Electric Power Co ltd; State Grid Corp of China SGCC
Current assignee: Chifeng Power Supply Co Of State Grid East Inner Mongolia Electric Power Co ltd; State Grid Corp of China SGCC
Priority date: 2022-08-22
Filing date: 2022-08-22
Publication date: 2023-01-10
Anticipated expiration: 2032-08-22

Abstract

The utility model relates to the technical field of leakage protection, in particular to a winding leakage protection device of a power system transformer, which reduces the danger of the leakage of the transformer winding, improves the safety of the box body for the leakage protection of the transformer winding, and improves the use safety of the leakage protection device by timely carrying out fire extinguishing treatment on the transformer winding through a fire extinguishing device; the power distribution box comprises a box body, extinguishing device, the ceramic supporting seat, the first bolt of multiunit, the metal sheet, multiunit second bolt and wire, the box left end is provided with the operation mouth, the setting of sealing door is in operation mouth department, extinguishing device installs on box upper portion, the extinguishing device output communicates with each other with the box in, ceramic supporting seat bottom sets up in box inside wall bottom, and the ceramic supporting seat passes through the first bolt of multiunit and box inside wall fixed connection, the metal sheet sets up on ceramic supporting seat top, and the metal sheet passes through multiunit second bolt and ceramic supporting seat fixed connection, transformer winding fixed mounting is on the metal sheet top.

Description

Winding leakage protection device of power system transformer

Technical Field

The utility model relates to an earth leakage protection's technical field especially relates to a winding earth leakage protection device of electric power system transformer.

Background

The transformer winding refers to a circuit part of a transformer, is formed by winding a copper wire or an aluminum wire with high conductivity, is applied to an electric power system, and can generate danger when the winding of the transformer leaks electricity, so that funnel protection needs to be carried out on the winding of the transformer, at present, in the prior art of leakage protection, namely CN202122930402.X, the device comprises a transformer shell with a support component which is symmetrically and detachably mounted at the bottom, an anti-leakage component is detachably mounted at the upper end face of the transformer shell and comprises an insulating frame which is detachably connected to the transformer shell, a groove is formed in the middle of the upper end face of the insulating frame, an ear plate is symmetrically and fixedly mounted on the outer edge face of the insulating frame, a detection lantern ring is fixedly mounted at the middle of the bottom of the groove, a cavity is formed in the ear plate, a buzzer and a warning lamp which are fixedly mounted in the cavity, a transmission tube which is fixedly mounted on the upper end face of the ear plate is connected with the buzzer and the warning lamp are symmetrically and fixedly mounted on the outer edge face of the detection lantern ring, and the transmission tube is symmetrically and is fixedly mounted on the outer edge face of the detection lantern ring, but the device finds that the device has poor insulation effect between the transformer winding and the shell, the winding is easy to cause the shell to be charged after the winding, the use safety of the protection device is reduced, and the device, and the anti-leakage protection device can improve the use safety of the anti-leakage protection device, thereby the anti-leakage protection device.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a reduce the danger that transformer winding electric leakage takes place, improve the security of box to transformer winding electric leakage protection, in time put out a fire with transformer winding through extinguishing device and handle, improve the winding earth leakage protection device of electric power system transformer of earth leakage protection device's safety in utilization.

The utility model discloses a winding earth leakage protection device of power system transformer, the power distribution box comprises a box body, extinguishing device, ceramic supporting seat, multiunit first bolt, the metal sheet, multiunit second bolt and wire, the box left end is provided with the operation mouth, the closed door sets up in operation mouth department, extinguishing device installs on box upper portion, extinguishing device output communicates with each other in the box, ceramic supporting seat bottom sets up in box inside wall bottom, and ceramic supporting seat is through multiunit first bolt and box inside wall fixed connection, the metal sheet sets up on ceramic supporting seat top, and the metal sheet passes through multiunit second bolt and ceramic supporting seat fixed connection, transformer winding fixed mounting is on the metal sheet top, and transformer winding communicates with each other with the metal sheet, the wire input end communicates with the metal sheet, the wire output end communicates and is provided with the metal stick, the metal stick imbeds inside ground; at first open the sealing door, install ceramic support seat in the box inner wall bottom through the operation mouth, later install the metal sheet on ceramic support seat top, install transformer winding on the metal sheet top, when transformer winding takes place the electric leakage, transformer winding's electric current passes through the metal sheet contact, the metal sheet passes through the wire with electric current and carries to the metal rod, make the metal rod introduce the electric current underground, reduce the danger that transformer winding electric leakage takes place, through setting up ceramic support seat with insulating between metal sheet and the box, avoid transformer winding electric leakage's electric current leading-in box on, improve the security of box to transformer winding electric leakage protection, when transformer winding electric leakage trouble takes place the conflagration, accessible extinguishing device in time puts out a fire with transformer winding, improve earth leakage protection device's safety in utilization.

Preferably, the fire extinguishing device comprises a protective cover, a steel cylinder, a connecting pipe, an electric control valve, a discharge pipe, a smoke sensor and a controller, wherein the protective cover is arranged at the top end of the box body; when transformer winding breaks out the conflagration, through the smoke transducer to the smog response of conflagration, smoke transducer carries the signal of response to the controller, controller control electric control valve opens, it makes the gaseous fire extinguishing of steel bottle internal compression carry to the inside of delivery pipe through the connecting pipe to electric control valve opens the back, it will put out a fire gas injection to the box to make the delivery pipe pass through the multiunit shower nozzle, thereby make the gaseous transformer winding of putting out a fire of fire handle, the convenience of the processing of improving the device to conflagration automatic fire extinguishing, improve protection device's safety in utilization, reduce the loss of property that the conflagration takes place.

Preferably, the air conditioner also comprises a temperature sensor, a support and a fan, wherein the temperature sensor is arranged on the inner side wall of the box body, the temperature sensor is communicated with the inside of the box body and is electrically connected with the controller, the top end of the support is connected with the bottom end of the box body, the fan is arranged on the support and is electrically connected with the controller, and the upper end and the lower end of the box body are respectively provided with a plurality of groups of ventilation openings; the temperature in the box is measured through the temperature sensor, when transformer winding high temperature trouble appears, carry high temperature signal to the controller through temperature sensor, make controller control fan rotatory, carry outdoor air to the box inside through box bottom vent after the fan is rotatory, partial heat is taken away in the air flow in the box to make the transformer winding heat dissipation cooling in the box, improve transformer winding's cooling convenience.

Preferably, the device also comprises a current sensor and a wireless transmitter, wherein the current sensor is arranged on the inner side wall of the box body, the current sensor is connected with the metal plate and is electrically connected with the controller, the wireless transmitter is arranged on the outer side wall of the box body, and the wireless transmitter is electrically connected with the controller; on the leading-in metal sheet of the electric current of transformer winding electric leakage, respond to the electric current of metal sheet through current sensor, when current sensor sensed the metal sheet electrified, current sensor sent signal to controller, and wireless transmitter of controller control sent wireless electric leakage alarm signal to be convenient for remind maintainer in time to maintain.

Preferably, the intelligent alarm device further comprises a buzzer and an alarm lamp, the buzzer is mounted on the outer side wall of the box body, the alarm lamp is mounted at the top end of the protective cover, and the buzzer and the alarm lamp are respectively and electrically connected with the controller; when the transformer winding generates electric leakage, the controller respectively controls the buzzer and the alarm lamp to start, so that the buzzer makes an alarm sound, the alarm lamp makes an alarm light, surrounding personnel are timely reminded of electric leakage, and the use safety of the device is improved.

Preferably, the device also comprises a base, wherein the base is arranged at the bottom end of the box body; the bottom end of the box body is supported by the base, so that the use stability of the box body is improved.

Preferably, the insulation sleeve is sleeved on the outer side wall of the lead; through setting up insulating cover, improve the insulating effect of wire, improve the safety in utilization of wire.

Compared with the prior art, the beneficial effects of the utility model are that: at first open the sealing door, install ceramic support seat in the box inner wall bottom through the operation mouth, later install the metal sheet on ceramic support seat top, install transformer winding on the metal sheet top, when transformer winding takes place the electric leakage, transformer winding's electric current passes through the metal sheet contact, the metal sheet passes through the wire with electric current and carries to the metal rod, make the metal rod introduce the electric current underground, reduce the danger that transformer winding electric leakage takes place, through setting up ceramic support seat with insulating between metal sheet and the box, avoid transformer winding electric leakage's electric current leading-in box on, improve the security of box to transformer winding electric leakage protection, when transformer winding electric leakage trouble takes place the conflagration, accessible extinguishing device in time puts out a fire with transformer winding, improve earth leakage protection device's safety in utilization.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic view of a partial structure of the connection between a ceramic support and a metal plate;

FIG. 3 is a partial structural view showing the connection of the shield with the cylinder or the like;

FIG. 4 is a schematic view of a partial axial structure of the connection between the case and the base;

in the drawings, the reference numbers: 1. a box body; 2. a ceramic support seat; 3. a first bolt; 4. a metal plate; 5. a second bolt; 6. a wire; 7. a metal rod; 8. a protective cover; 9. a steel cylinder; 10. a connecting pipe; 11. an electrically controlled valve; 12. a discharge pipe; 13. a smoke sensor; 14. a controller; 15. a temperature sensor; 16. a support; 17. a fan; 18. a current sensor; 19. a wireless transmitter; 20. a buzzer; 21. an alarm lamp; 22. a base; 23. and an insulating sleeve.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The present invention may be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

The left end of the box body 1 is provided with an operation opening, a closed door is arranged at the operation opening, the bottom end of a ceramic supporting seat 2 is arranged at the bottom of the inner side wall of the box body 1, the ceramic supporting seat 2 is fixedly connected with the inner side wall of the box body 1 through a plurality of groups of first bolts 3, a metal plate 4 is arranged at the top end of the ceramic supporting seat 2, the metal plate 4 is fixedly connected with the ceramic supporting seat 2 through a plurality of groups of second bolts 5, a transformer winding is fixedly arranged at the top end of the metal plate 4 and is communicated with the metal plate 4, the input end of a lead 6 is communicated with the metal plate 4, the output end of the lead 6 is communicated with a metal bar 7, the metal bar 7 is embedded into the ground, a protective cover 8 is arranged at the top end of the box body 1, a steel bottle 9 is arranged on the inner side wall of the protective cover 8 through a bracket, the input end of a connecting pipe 10 is communicated with the output end of the steel bottle 9, and an electric control valve 11 is arranged on the connecting pipe 10, the exhaust pipe 12 is arranged on the top of the inner side wall of the box body 1, the bottom end of the exhaust pipe 12 is communicated with a plurality of groups of spray heads, the output end of the connecting pipe 10 is communicated with the interior of the exhaust pipe 12, the smoke sensor 13 is communicated with the top of the inner side wall of the box body 1, the controller 14 is arranged on the outer side wall of the box body 1, the controller 14 is respectively and electrically connected with the electric control valve 11 and the smoke sensor 13, the temperature sensor 15 is arranged on the inner side wall of the box body 1, the temperature sensor 15 is communicated with the interior of the box body 1, the temperature sensor 15 is electrically connected with the controller 14, the top end of the bracket 16 is connected with the bottom end of the box body 1, the fan 17 is arranged on the bracket 16, the fan 17 is electrically connected with the controller 14, the upper end and the lower end of the box body 1 are respectively provided with a plurality of groups of ventilation openings, the current sensor 18 is arranged on the inner side wall of the box body 1, the current sensor 18 is connected with the metal plate 4, and the current sensor 18 is electrically connected with the controller 14, the wireless transmitter 19 is arranged on the outer side wall of the box body 1, the wireless transmitter 19 is electrically connected with the controller 14, the buzzer 20 is arranged on the outer side wall of the box body 1, the alarm lamp 21 is arranged at the top end of the protective cover 8, the buzzer 20 and the alarm lamp 21 are respectively and electrically connected with the controller 14, the base 22 is arranged at the bottom end of the box body 1, and the insulating sleeve 23 is sleeved on the outer side wall of the lead 6; the method comprises the steps of firstly opening a closed door, installing a ceramic supporting seat 2 at the bottom of the inner side wall of a box body 1 through an operation opening, then installing a metal plate 4 at the top end of the ceramic supporting seat 2, installing a transformer winding at the top end of the metal plate 4, enabling current of the transformer winding to be contacted with the metal plate 4 when the transformer winding leaks electricity, enabling the metal plate 4 to convey the current to a metal rod 7 through a wire 6, enabling the metal rod 7 to introduce the current into the ground, reducing the danger of leakage of the transformer winding, insulating the metal plate 4 from the box body 1 through the ceramic supporting seat 2, avoiding the current of the transformer winding from leaking electricity to be guided into the box body 1, improving the safety of the box body 1 for leakage protection of the transformer winding, sensing smoke of fire through a smoke sensor 13 when the transformer winding breaks fire, conveying a sensed signal to a controller 14 through the smoke sensor 13, controlling the electric control valve 11 to be opened through the connecting pipe 10, enabling the discharging pipe 12 to spray fire extinguishing gas into the box body 1 through a plurality of groups of spray nozzles, thereby enabling the fire extinguishing gas to extinguish the transformer winding, improving the safety of the steel cylinder for automatic fire treatment, and improving the safety of the use of the fire protection device.

As shown in fig. 1 to 4, the utility model discloses a winding earth-leakage protection device of power system transformer, it is at the during operation, at first open the sealing door, install ceramic supporting seat 2 in box 1 inside wall bottom through the operation mouth, later install metal sheet 4 on ceramic supporting seat 2 top, install transformer winding on metal sheet 4 top, when transformer winding takes place the electric leakage, transformer winding's electric current passes through metal sheet 4 contact, metal sheet 4 carries the electric current to metal bar 7 through wire 6, make metal bar 7 introduce the electric current underground, simultaneously respond to metal sheet 4's electric current through current sensor 18, when current sensor 18 senses metal sheet 4 is electrified, current sensor 18 carries the signal to controller 14, controller 14 control wireless transmitter 19 sends wireless electric leakage alarm signal, later when transformer winding takes place the conflagration, through smoke sensor 13 to the smoke response of smoke sensor 13, smoke sensor 13 carries the signal of response to controller 14, controller 14 controls electric control valve 11 to open, make the gas that puts out a fire in the winding of putting out a fire through connecting pipe 10 transport to 12 inside warning gas emission pipe of fire extinguishing, thereby make the warning gas emission control of box 21 through the warning gas emission control 20 and make the warning gas emission control buzzer 20 respectively around the box 21, thereby make the warning buzzer 20 of the warning sound control of the warning gas emission control of the warning light control of the fire alarm control 20.

The utility model discloses the main function who realizes does: the metal plate 4 passes through the wire 6 with the electric current and carries to the metal rod 7, makes the metal rod 7 introduce the underground with the electric current, reduces the danger that transformer winding electric leakage takes place, insulates between metal plate 4 and the box 1 through setting up ceramic supporting seat 2, avoids on the leading-in box 1 of electric current of transformer winding electric leakage, improves the security of box 1 to transformer winding electric leakage protection.

The winding leakage protection device of the power system transformer of the utility model adopts a common mechanical mode as the installation mode, the connection mode or the setting mode, and can be implemented as long as the beneficial effects can be achieved; the utility model discloses a winding earth-leakage protection device's of power system transformer automatically controlled valve 11, smoke transducer 13, controller 14, temperature sensor 15, fan 17, current sensor 18, wireless transmitter 19, bee calling organ 20 and alarm lamp 21 are purchase on the market, and this industry technical staff only need according to its subsidiary service instruction install and operate can, and need not the technical staff in this field and pay out creative work.

All technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a winding earth leakage protection device of power system transformer, a serial communication port, including box (1), extinguishing device, ceramic supporting seat (2), multiunit first bolt (3), metal sheet (4), multiunit second bolt (5) and wire (6), box (1) left end is provided with the operation mouth, the setting of sealing door is in operation mouth department, extinguishing device installs on box (1) upper portion, the extinguishing device output communicates with each other in with box (1), ceramic supporting seat (2) bottom sets up in box (1) inside wall bottom, and ceramic supporting seat (2) are through multiunit first bolt (3) and box (1) inside wall fixed connection, metal sheet (4) set up on ceramic supporting seat (2) top, and metal sheet (4) are through multiunit second bolt (5) and ceramic supporting seat (2) fixed connection, transformer winding fixed mounting is on metal sheet (4) top, and transformer winding communicates with each other with metal sheet (4), wire (6) input communicates with metal sheet (4), wire (6) output communicates with each other and is provided with metal stick (7), metal stick (7) embedding ground is inside.

2. The winding leakage protection device of the power system transformer as claimed in claim 1, wherein the fire extinguishing device comprises a protective cover (8), a steel cylinder (9), a connecting pipe (10), an electrically controlled valve (11), a discharge pipe (12), a smoke sensor (13) and a controller (14), the protective cover (8) is installed at the top end of the box body (1), the steel cylinder (9) is installed on the inner side wall of the protective cover (8) through a bracket, the input end of the connecting pipe (10) is communicated with the output end of the steel cylinder (9), the electrically controlled valve (11) is communicated and arranged on the connecting pipe (10), the discharge pipe (12) is installed at the top of the inner side wall of the box body (1), the bottom end of the discharge pipe (12) is communicated and arranged with a plurality of groups of nozzles, the output end of the connecting pipe (10) is communicated and arranged in the discharge pipe (12), the smoke sensor (13) is communicated and arranged at the top of the inner side wall of the box body (1), the controller (14) is installed on the outer side wall of the box body (1), and the controller (14) is electrically connected with the electrically controlled valve (11) and the smoke sensor (13), respectively.

3. The winding leakage protection device of the power system transformer as claimed in claim 1, further comprising a temperature sensor (15), a bracket (16) and a fan (17), wherein the temperature sensor (15) is installed on the inner side wall of the box body (1), the temperature sensor (15) is communicated with the inside of the box body (1), the temperature sensor (15) is electrically connected with the controller (14), the top end of the bracket (16) is connected with the bottom end of the box body (1), the fan (17) is installed on the bracket (16), the fan (17) is electrically connected with the controller (14), and the upper end and the lower end of the box body (1) are respectively provided with a plurality of groups of ventilation openings.

4. A winding leakage protector of a power system transformer according to claim 1, further comprising a current sensor (18) and a wireless transmitter (19), wherein the current sensor (18) is installed on the inner side wall of the box body (1), the current sensor (18) is connected with the metal plate (4), the current sensor (18) is electrically connected with the controller (14), the wireless transmitter (19) is installed on the outer side wall of the box body (1), and the wireless transmitter (19) is electrically connected with the controller (14).

5. A winding leakage protection device of a transformer in an electric power system according to claim 1, further comprising a buzzer (20) and an alarm lamp (21), wherein the buzzer (20) is mounted on the outer side wall of the casing (1), the alarm lamp (21) is mounted on the top end of the protective cover (8), and the buzzer (20) and the alarm lamp (21) are respectively electrically connected with the controller (14).

6. A winding earth leakage protection device for a transformer in an electric power system according to claim 1, further comprising a base (22), wherein the base (22) is mounted on the bottom end of the tank (1).

7. A winding leakage protector for transformer in electric power system as claimed in claim 1, characterized by further comprising an insulating sleeve (23), the insulating sleeve (23) being fitted around the outer side wall of the conducting wire (6).