CN210517578U - High-voltage switch rotating shaft acceleration acquisition equipment based on giant magnetoresistance - Google Patents
High-voltage switch rotating shaft acceleration acquisition equipment based on giant magnetoresistance Download PDFInfo
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- CN210517578U CN210517578U CN201921860903.1U CN201921860903U CN210517578U CN 210517578 U CN210517578 U CN 210517578U CN 201921860903 U CN201921860903 U CN 201921860903U CN 210517578 U CN210517578 U CN 210517578U
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Abstract
The utility model discloses a high tension switch axis of rotation acceleration collection equipment based on giant magnetoresistance, including magnetic sensor and magnetic generator, magnetic generator fixed connection is on the magnetic generator seat, and magnetic generator seat fixed connection is on the axle head of high tension switch axis of rotation, and magnetic sensor fixed connection is in telescopic link one end, and telescopic link other end fixed connection is on the fixing base, and fixing base fixed connection just ensures that magnetic sensor is just to magnetic generator on the cubical switchboard cabinet wall. The utility model discloses an at high tension switchgear axis of rotation top installation magnetic generator, at high tension switchgear axis of rotation side cabinet wall department installation magnetic sensor, realize gathering the acceleration of high tension switchgear axis of rotation, the sensor need not to follow the axis of rotation action again, has realized the non-contact installation of magnetic generator with magnetic sensor, has improved high tension switchgear monitoring facilities's security and stability, has improved high tension switchgear intelligent process, helps smart power grids's development at last.
Description
Technical Field
The utility model belongs to the technical field of high tension switchgear axis of rotation acceleration monitoring, concretely relates to high tension switchgear axis of rotation acceleration collection equipment based on giant magnetoresistance.
Background
GIS devices have been widely operated around the world since the practical use in the 60's of the 20 th century. GIS is widely used not only in the high-voltage and ultra-high voltage fields, but also in the ultra-high voltage field. Compared with a conventional open-type transformer substation, the GIS has the advantages of compact structure, small occupied area, high reliability, flexible configuration, convenience in installation, high safety, high environmental adaptability, small maintenance workload and maintenance interval of main parts not less than 20 years.
High voltage switchgear refers to indoor and outdoor ac switchgear operating in power systems with voltages of 3kV and above, and frequencies of 50Hz and below. The power system protection device is mainly used for controlling and protecting power systems (including users of power plants, substations, power transmission and distribution lines, industrial and mining enterprises and the like), can be used for not only putting a part of power equipment or lines into or out of operation according to the operation requirements of a power grid, but also quickly cutting off the fault part from the power grid when the power equipment or lines have faults, thereby ensuring the normal operation of the fault-free part in the power grid and the safety of equipment and operation maintenance personnel. Therefore, the high-voltage switch equipment is very important power transmission and distribution equipment, and the safe and reliable operation of the high-voltage switch equipment has very important significance on the safe and effective operation of a power system.
The temperature rise of the high-voltage switch equipment contact, the mechanical characteristics of an operating mechanism and the arc burning loss of a breaker contact are important aspects of causing the fault of the switch equipment, and the effective real-time monitoring on the high-voltage switch equipment contact and the operating mechanism is the key for realizing the switching of the maintenance mode of the switch equipment. Most of the faults (60-66% of major faults and 86% of minor faults) of the high-voltage circuit breaker occur in mechanical mechanisms, mainly related to operating mechanisms, monitoring devices, auxiliary devices and the like, and are mostly caused by poor mechanical characteristics, such as separation rejection, closing rejection, misoperation and the like. Monitoring the operating characteristics of a switching device is of great significance.
At present, a temperature measuring sensor of high-voltage switch equipment and an installation method thereof are relatively mature, and the mechanical characteristics of an operating mechanism of the high-voltage switch equipment cannot be fixed, so that the detection of the operating mechanism of the high-voltage switch equipment is always in an off-line test mode, the high-voltage switch equipment is withdrawn from operation every year to carry out an off-line experiment, and the mechanical characteristics of the operating mechanism are tested.
Disclosure of Invention
The to-be-solved technical problem of the utility model is: the utility model provides a high-voltage switch axis of rotation acceleration collection equipment based on giant magnetoresistance to solve the problem that exists among the prior art.
The utility model discloses the technical scheme who takes does: the utility model provides a high tension switch axis of rotation acceleration collection equipment based on giant magnetoresistance, includes magnetic sensor and magnetic generator, and magnetic generator fixed connection is on the magnetic generator seat, and magnetic generator seat fixed connection is on the axle head of high tension switch axis of rotation, and magnetic sensor fixed connection is in telescopic link one end, and telescopic link other end fixed connection is on the fixing base, and fixing base fixed connection just ensures that magnetic sensor is just to magnetic generator on the cubical switchboard cabinet wall.
Preferably, the right end of the fixing seat is provided with a boss, the axial middle part of the fixing seat is provided with a through hole, the telescopic rod movably extends into the through hole in the fixing seat, and the surface of the boss is provided with a set screw for locking the telescopic rod.
Preferably, the fixing seat comprises an inner flange and an outer flange, and the inner flange and the outer flange are locked by bolts after clamping the wall of the switch cabinet.
Preferably, the right end of the telescopic rod is provided with a connecting flange plate, and the connecting flange plate is fixedly connected with the magnetic sensor through four screws.
Preferably, one end face of the magnetic generator seat is provided with a blind hole embedded into the magnetic generator, the other end of the magnetic generator seat is provided with an inner hole, and the high-voltage switch rotating shaft is locked by a plurality of locking screws which are uniformly distributed in the circumferential direction after being inserted into the inner hole.
The utility model has the advantages that: compared with the prior art, the utility model discloses an at high tension switchgear axis of rotation top installation magnetic generator, at high tension switchgear axis of rotation side cabinet wall department installation magnetic sensor, the realization is gathered the acceleration of high tension switchgear axis of rotation, the sensor need not to follow the axis of rotation action again, the non-contact installation of magnetic generator with magnetic sensor has been realized, realize the on-line monitoring of high tension switchgear mechanical properties, real-time data analysis is more reliable, high tension switchgear monitoring facilities's security and stability have been improved, high tension switchgear intelligent process has been improved, help the development of intelligent electric wire netting at last, the utility model has the characteristics of simple structure is installed, operational reliability is high, the telescopic link is convenient for the position control of magnetic generator and magnetic sensor (optimum distance is at 1cm 3 mm), realizes the adjustment of best measuring position, improves measurement accuracy.
Drawings
Fig. 1 is a schematic diagram of the structure explosion of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments.
Example 1: as shown in fig. 1, a high tension switch axis of rotation acceleration collection equipment based on giant magnetoresistance, magnetic sensor 1 (giant magnetoresistance sensor principle) including square structure and magnetic generator 2 of square structure, magnetic sensor 1 sets up the installation through-hole with 2 four corners departments of magnetic generator, 2 fixed connection of magnetic generator are on magnetic generator seat 6, 6 fixed connection of magnetic generator seat is served at the axle of high tension switch axis of rotation 7, 1 fixed connection of magnetic sensor is in 3 one end of telescopic link, 3 other end fixed connection of telescopic link is on fixing base 4, 4 fixed connection of fixing base is on cubical switchboard cabinet wall 5 and ensure that magnetic sensor 1 is just to magnetic generator 2.
Preferably, 4 right-hand members of above-mentioned fixing base are provided with boss 8, axial middle part sets up in the through-hole 9 on the fixing base 4 is stretched into to the activity of through-hole 9 telescopic link 3 and sets up holding screw 10 locking telescopic link 3 on the boss 8 surface, flexible regulation convenient and fast, locking is reliable and stable, set up the boss, the guidance quality of through-hole is good and the stability that the telescopic link is connected is better, the bending of avoiding the telescopic link cantilever to lead to measurement accuracy low, also be convenient for install holding screw.
Preferably, the fixing seat 4 comprises an inner flange 401 and an outer flange 402 which are provided with inner through holes, the inner flange 401 and the outer flange 402 clamp and hit the switch cabinet wall 5 and then are locked by bolts, the installation is convenient and fast, the connection is stable and reliable, and the circular holes with equal diameters are formed in the corresponding inner through holes of the switch cabinet wall 5.
Preferably, the right end of the telescopic rod 3 is provided with the connecting flange plate 11, the connecting flange plate 11 is fixedly connected with the magnetic sensor 1 through four screws, and the mounting is convenient and fast, and the mounting and dismounting are easy.
Preferably, one end face of the magnetic generator seat 6 is provided with a blind hole embedded into the magnetic generator 6, the other end of the magnetic generator seat is provided with an inner hole, the high-voltage switch rotating shaft 7 is locked by a plurality of locking screws 12 which are uniformly distributed in the circumferential direction after being inserted into the inner hole, and the magnetic generator and the high-voltage switch rotating shaft are convenient and fast to assemble and disassemble and are stable and reliable in connection.
The magnetic generator is made of Ru magnet materials, the magnetic sensor is a giant magnetoresistance sensor, the giant magnetoresistance sensor is installed in the square shell, and the inner part of the giant magnetoresistance sensor is provided with an acquisition circuit connected with the giant magnetoresistance sensor.
When the high-voltage switch acts, the rotating shaft in the operating mechanism rotates to drive the top magnetic generator to rotate, so that the magnetic sensor acquires the angle change and the change speed of the magnetic field of the magnetic generator, and the non-contact acquisition of the acceleration of the rotating shaft of the high-voltage switch is realized.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention, therefore, the protection scope of the present invention should be subject to the protection scope of the claims.
Claims (5)
1. The utility model provides a high tension switchgear axis of rotation acceleration collection equipment based on giant magnetoresistance which characterized in that: including magnetic sensor (1) and magnetic generator (2), magnetic generator (2) fixed connection is on magnetic generator seat (6), magnetic generator seat (6) fixed connection is on the axle head of high tension switch axis of rotation (7), magnetic sensor (1) fixed connection is in telescopic link (3) one end, telescopic link (3) other end fixed connection is on fixing base (4), fixing base (4) fixed connection just ensures that magnetic sensor (1) is just to magnetic generator (2) on cubical switchboard cabinet wall (5).
2. The giant magnetoresistance based high voltage switch rotating shaft acceleration acquisition equipment as claimed in claim 1, wherein: the right end of the fixing seat (4) is provided with a boss (8), the axial middle part is provided with a through hole (9), the telescopic rod (3) movably extends into the through hole (9) on the fixing seat (4), and the surface of the boss (8) is provided with a set screw (10) to lock the telescopic rod (3).
3. The giant magnetoresistance based high voltage switch rotating shaft acceleration acquisition equipment as claimed in claim 1, wherein: the fixing seat (4) comprises an inner flange (401) and an outer flange (402), and the inner flange (401) and the outer flange (402) clamp the wall (5) of the switch cabinet and are locked by bolts.
4. The giant magnetoresistance based high voltage switch rotating shaft acceleration acquisition equipment as claimed in claim 1, wherein: the right end of the telescopic rod (3) is provided with a connecting flange plate (11), and the connecting flange plate (11) is fixedly connected with the magnetic sensor (1) through four screws.
5. The giant magnetoresistance based high voltage switch rotating shaft acceleration acquisition equipment as claimed in claim 1, wherein: one end face of the magnetic generator seat (6) is provided with a blind hole embedded into the magnetic generator seat (6), the other end of the magnetic generator seat is provided with an inner hole, and the high-voltage switch rotating shaft (7) is locked by a plurality of locking screws (12) which are uniformly distributed in the circumferential direction after being inserted into the inner hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921860903.1U CN210517578U (en) | 2019-10-31 | 2019-10-31 | High-voltage switch rotating shaft acceleration acquisition equipment based on giant magnetoresistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921860903.1U CN210517578U (en) | 2019-10-31 | 2019-10-31 | High-voltage switch rotating shaft acceleration acquisition equipment based on giant magnetoresistance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210517578U true CN210517578U (en) | 2020-05-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921860903.1U Active CN210517578U (en) | 2019-10-31 | 2019-10-31 | High-voltage switch rotating shaft acceleration acquisition equipment based on giant magnetoresistance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210517578U (en) |
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2019
- 2019-10-31 CN CN201921860903.1U patent/CN210517578U/en active Active
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