CN214375070U

CN214375070U - Transformer on-line monitoring device with high sensitivity

Info

Publication number: CN214375070U
Application number: CN202120397391.0U
Authority: CN
Inventors: 常栋凯; 高清虎
Original assignee: Baoding Zhuoyue Electric Co ltd
Current assignee: Baoding Zhuoyue Electric Co ltd
Priority date: 2021-02-23
Filing date: 2021-02-23
Publication date: 2021-10-08
Anticipated expiration: 2031-02-23

Abstract

The utility model discloses a transformer on-line monitoring device with high sensitivity, which comprises a shell, wherein a base is arranged below the shell; the utility model discloses earlier carry out real-time detection through current sensor and voltage sensor to the current signal and the voltage signal of transformer, and signal amplification circuit is transmitted the signal and is enlargied, carry out data conversion through the AD converter again and carry out analysis processes and feedback by central processing chip to data, thereby make the data testing process of transformer more simple accurate, make detected data obtain rapid processing and feedback, monitoring sensitivity has been improved to a certain extent, through articulated scissors frame between the sliding sleeve of casing bottom and the sliding sleeve of the inside bottom of base, and establish spacing spring at slide bar both sides cover, thereby play the shock attenuation cushioning effect to the casing, make the device avoid damaging inside spare part because of the vibration in the transportation moving process, and then guaranteed the device's normal monitoring function and life, have higher practicality.

Description

Transformer on-line monitoring device with high sensitivity

Technical Field

The utility model relates to a transformer monitoring facilities technical field especially relates to a transformer on-line monitoring device that sensitivity is high.

Background

The transformer is a static electrical device, it is a device used for changing the alternating voltage of a certain numerical value into another or several different numerical values with the same frequency, the transformer undertakes the tasks of voltage transformation, electric energy distribution and transfer in the electric power system, the normal operation of the transformer is the important guarantee of the safe, reliable and economic operation and power supply of the electric power system, the transformer is easy to have faults and accidents in the long-term operation, because the reasons causing the faults and accidents of the transformer are various, the correct diagnosis and early prediction of the faults have more urgent practicability and importance, so it is necessary to monitor the transformer on line by the transformer monitoring device;

the current transformer on-line monitoring device is mostly fixed in structure, and the function is single, and is comparatively complicated to the collection and the processing procedure of testing data, and the sensitivity that leads to transformer data monitoring is not high enough, and monitoring data is also accurate inadequately, and because monitoring device often need remove the transportation between the transformer monitoring point of difference, and current monitoring device mostly lacks damper, leads to monitoring device's inside spare part to take place to damage because of the vibration easily to influence its normal monitoring function, consequently, the utility model provides a transformer on-line monitoring device that sensitivity is high is used for solving the problem that exists among the prior art.

SUMMERY OF THE UTILITY MODEL

To the above problem, the utility model aims to provide a transformer on-line monitoring device that sensitivity is high, this transformer on-line monitoring device that sensitivity is high passes through signal amplification circuit and transmits the signal and enlarge, carry out data conversion through the AD converter again and carry out analysis processes and feedback to data by central processing chip, thereby make the data testing process of transformer more simple accurate, through articulated scissors frame between the sliding sleeve of casing bottom and the sliding sleeve of the inside bottom of base, and establish limit spring at the slide bar both sides cover, thereby play the shock attenuation cushioning effect to the casing.

In order to realize the utility model discloses a purpose, the utility model discloses a following technical scheme realizes: a transformer on-line monitoring device with high sensitivity comprises a shell, a base is arranged below the shell, the bottom end of the outer part of the shell and the bottom end of the inner part of the base are symmetrically provided with strip-shaped grooves, slide bars are fixed in the strip-shaped grooves, sliding sleeves are sleeved on both sides of the sliding rod in a sliding manner and are connected with the inner wall of the strip-shaped groove through limiting springs, the limiting spring is sleeved outside the sliding rod in a sliding manner, a scissor rack is hinged between the sliding sleeve positioned above and the sliding sleeve positioned below, a current sensor and a voltage sensor are respectively arranged at two sides in the shell, the current sensor and the voltage sensor are respectively connected with a current signal acquisition module and a voltage signal acquisition module through a signal amplification circuit, the current signal acquisition module and the voltage signal acquisition module are both electrically connected to an A/D converter inside the shell, and the A/D converter is electrically connected to a central processing chip inside the shell.

The further improvement lies in that: the circuit through hole has been seted up on the casing top, current sensor and voltage sensor all are connected with the transformer through the electric wire way, be equipped with temperature sensor between current sensor and the voltage sensor, temperature sensor electric connection is on the inside temperature signal collection module of casing, temperature signal collection module and AD converter electric connection.

The further improvement lies in that: the casing outside is equipped with the display screen with central processing chip electric connection, the display screen both sides are equipped with respectively with central processing chip electric connection's light alarm and audible alarm.

The further improvement lies in that: the solar energy storage device is characterized in that storage batteries are arranged on two sides of the top end of the shell, a solar cell panel is arranged above the storage batteries, and the solar cell panel is fixed to the top end of the shell through a support rod.

The further improvement lies in that: radiating holes are formed in the two side walls of the shell at equal intervals, the radiating holes are arranged on the side walls of the shell in an inclined mode, and a dust screen is arranged at one end, located inside the shell, of the radiating holes.

The further improvement lies in that: the inner walls of two sides of the base are connected with the shell through damping springs, and universal locking wheels are arranged at four corners of the bottom end of the base.

The utility model has the advantages that: the utility model comprises a shell, a current sensor and a voltage sensor are used for detecting the current signal and the voltage signal of the transformer in real time, the signal is transmitted and amplified through a signal amplifying circuit, then data conversion is carried out through an A/D converter, and the data is analyzed, processed and fed back through a central processing chip, thereby leading the data detection process of the transformer to be simpler and more accurate, leading the detected data to be quickly processed and fed back, improving the monitoring sensitivity to a certain extent, through hinging the scissor frame between the sliding sleeve at the bottom end of the shell and the sliding sleeve at the bottom end in the base and sleeving the limiting springs at the two sides of the sliding rod, thereby play the shock attenuation cushioning effect to the casing, make the device avoid damaging inside spare part because of the vibration in the transportation removal process, and then guaranteed the device's normal monitoring function and life, have higher practicality.

Drawings

Fig. 1 is a front view of the present invention;

fig. 2 is a cross-sectional view of the present invention;

fig. 3 is a top cross-sectional view of the base of the present invention.

Wherein: 1. a housing; 2. a base; 3. a strip-shaped groove; 4. a slide bar; 5. a sliding sleeve; 6. a limiting spring; 7. a scissor rack; 8. a current sensor; 9. a voltage sensor; 10. a signal amplification circuit; 11. a current signal acquisition module; 12. a voltage signal acquisition module; 13. an A/D converter; 14. a central processing chip; 15. a line via hole; 16. a temperature sensor; 17. a temperature signal acquisition module; 18. a display screen; 19. a light alarm; 20. an audible alarm; 21. a storage battery; 22. a solar panel; 23. a support bar; 24. heat dissipation holes; 25. a dust screen; 26. a damping spring; 27. the universal locking wheel.

Detailed Description

In order to deepen the understanding of the present invention, the following embodiments will be combined to make the present invention do further details, and the present embodiment is only used for explaining the present invention, and does not constitute the limitation of the protection scope of the present invention.

According to fig. 1, 2 and 3, the embodiment provides a high-sensitivity transformer online monitoring device, which comprises a casing 1, a base 2 is arranged below the casing 1, strip-shaped grooves 3 are symmetrically arranged at the bottom end outside the casing 1 and the bottom end inside the base 2, sliding rods 4 are fixed in the strip-shaped grooves 3, sliding sleeves 5 are slidably sleeved at both sides of the sliding rods 4, the sliding sleeves 5 are connected with the inner walls of the strip-shaped grooves 3 through limiting springs 6, the limiting springs 6 are slidably sleeved outside the sliding rods 4, a scissor frame 7 is hinged between the sliding sleeves 5 above and below, current sensors 8 and voltage sensors 9 are respectively arranged at both sides inside the casing 1, the current sensors 8 and the voltage sensors 9 are respectively connected with a current signal acquisition module 11 and a voltage signal acquisition module 12 through signal amplification circuits 10, the current signal acquisition module 11 and the voltage signal acquisition module 12 are both electrically connected to an a/D converter 13 inside the housing 1, and the a/D converter 13 is electrically connected to a central processing chip 14 inside the housing 1.

Line through-hole 15 has been seted up on 1 top of casing, current sensor 8 and voltage sensor 9 all pass line through-hole 15 and are connected with the transformer through the circular telegram circuit, be equipped with temperature sensor 16 between current sensor 8 and the voltage sensor 9 for the inside temperature of monitoring the device realizes from the survey, 16 electric connection of temperature sensor is on the inside temperature signal collection module 17 of casing 1, temperature signal collection module 17 and AD converter 13 electric connection.

The outside of casing 1 is equipped with the display screen 18 with 14 electric connection of central processing chip, shows the real-time data that the monitoring transformer obtained through display screen 18, display screen 18 both sides are equipped with respectively with 14 electric connection of central processing chip's light alarm 19 and sound alarm 20, monitor the transformer data through light alarm 19 and sound alarm 20 and send out the police dispatch newspaper when unusual at the device.

1 top both sides of casing all are equipped with battery 21, battery 21 top is equipped with solar cell panel 22, solar cell panel 22 is fixed in 1 top of casing through bracing piece 23, plays energy-concerving and environment-protective effect.

The radiating holes 24 are formed in the two side walls of the shell 1 at equal intervals, the radiating holes 24 are arranged on the side walls of the shell 1 in an inclined mode, the dustproof net 25 is arranged at one end, located inside the shell 1, of the radiating holes 24, and the radiating effect is achieved while external dust is prevented from entering the shell 1.

Inner walls on two sides of the base 2 are connected with the shell 1 through damping springs 26, a buffering effect is further achieved on the shell 1, and universal locking wheels 27 are arranged at four corners of the bottom end of the base 2, so that the device can be moved and transported conveniently.

The high-sensitivity transformer on-line monitoring device comprises a shell 1, current signals and voltage signals of a transformer are detected in real time through a current sensor 8 and a voltage sensor 9, the signals are transmitted and amplified through a signal amplifying circuit 10, data conversion is carried out through an A/D converter 13, and data are analyzed, processed and fed back through a central processing chip 14, so that the data detection process of the transformer is simpler and more accurate, the detected data are processed and fed back quickly, the monitoring sensitivity is improved to a certain degree, a scissor frame 7 is hinged between a sliding sleeve 5 at the bottom end of the shell 1 and a sliding sleeve 5 at the bottom end inside a base 1, and limiting springs 6 are sleeved on two sides of a sliding rod 4, so that the shell 1 is subjected to a damping and buffering effect, the device is prevented from damaging internal parts due to vibration in the transportation and moving process, and the normal monitoring function and service life of the device are ensured, has high practicability.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a transformer on-line monitoring device that sensitivity is high, includes casing (1), its characterized in that: a base (2) is arranged below the shell (1), the outer bottom end of the shell (1) and the inner bottom end of the base (2) are symmetrically provided with a strip-shaped groove (3), a sliding rod (4) is fixed in the strip-shaped groove (3), sliding sleeves (5) are sleeved on both sides of the sliding rod (4) in a sliding manner, the sliding sleeves (5) are connected with the inner wall of the strip-shaped groove (3) through limiting springs (6), the limiting springs (6) are sleeved on the outer portion of the sliding rod (4) in a sliding manner, a scissor frame (7) is hinged between the sliding sleeve (5) positioned above and the sliding sleeve (5) positioned below, both sides of the inner portion of the shell (1) are respectively provided with a current sensor (8) and a voltage sensor (9), the current sensor (8) and the voltage sensor (9) are respectively connected with a current signal acquisition module (11) and a voltage signal acquisition module (12) through a signal amplification circuit (10), the current signal acquisition module (11) and the voltage signal acquisition module (12) are both electrically connected to an A/D converter (13) inside the shell (1), and the A/D converter (13) is electrically connected to a central processing chip (14) inside the shell (1).

2. The high-sensitivity online transformer monitoring device according to claim 1, wherein: line through hole (15) have been seted up on casing (1) top, current sensor (8) and voltage sensor (9) all are connected with the transformer through the electric wire way, be equipped with temperature sensor (16) between current sensor (8) and voltage sensor (9), temperature sensor (16) electric connection is on inside temperature signal collection module (17) of casing (1), temperature signal collection module (17) and AD converter (13) electric connection.

3. The high-sensitivity online transformer monitoring device according to claim 1, wherein: casing (1) outside is equipped with display screen (18) with central processing chip (14) electric connection, display screen (18) both sides are equipped with respectively with central processing chip (14) electric connection's light alarm (19) and sound alarm (20).

4. The high-sensitivity online transformer monitoring device according to claim 1, wherein: the solar energy storage battery is characterized in that storage batteries (21) are arranged on two sides of the top end of the shell (1), a solar panel (22) is arranged above the storage batteries (21), and the solar panel (22) is fixed to the top end of the shell (1) through a support rod (23).

5. The high-sensitivity online transformer monitoring device according to claim 1, wherein: the radiating holes (24) are formed in the two side walls of the shell (1) at equal intervals, the radiating holes (24) are arranged on the side walls of the shell (1) in an inclined mode, and a dust screen (25) is arranged at one end, located inside the shell (1), of the radiating holes (24).

6. The high-sensitivity online transformer monitoring device according to claim 1, wherein: the inner walls of two sides of the base (2) are connected with the shell (1) through damping springs (26), and universal locking wheels (27) are arranged at four corners of the bottom end of the base (2).