A power transformer operation monitoring device

Abstract

The invention discloses a power transformer operation monitoring device, which relates to the technical field of power transformers, and comprises a transformer body and a monitoring mechanism arranged in the inner cavity of the transformer body, wherein a controller is fixedly connected to one side of the transformer body; the monitoring mechanism comprises a magnetic field monitoring self-adjusting unit, wherein the magnetic field monitoring self-adjusting unit is arranged in the inner cavity of the transformer body, and the magnetic field monitoring self-adjusting unit is used to monitor whether the magnetic field is disordered; the monitoring mechanism also comprises a guide unit, wherein the number of the guide units is several, and the guide unit is used in conjunction with the magnetic field monitoring self-adjusting unit. The power transformer operation monitoring device can realize real-time monitoring of the magnetic field status through the coordinated use of the monitoring mechanism and the timing alarm mechanism, thereby ensuring the normal operation of the transformer body, improving the working efficiency of the transformer body and extending the service life of the transformer body.

Description

Technical Field

[0001] The invention relates to the technical field of power transformers, and in particular to an operation monitoring device for a power transformer. Background Art

[0002] A power transformer is a static electrical device that converts an AC voltage (current) of a certain value into another or several voltages (currents) of different values ​​with the same frequency through the principle of electromagnetic induction. The power transformer is an indispensable and important equipment in the power system. During long-term use, the power transformer may experience problems such as flux saturation, winding short circuit, insulation aging, etc. It may also cause magnetic field disorder due to lightning strikes or earthquakes. It is not easy for maintenance personnel to detect the magnetic field disorder phenomenon in the first time, which affects the normal operation of the power transformer, reduces the working efficiency of the power transformer and shortens the service life of the power transformer.

[0003] Combining the above problems, we will find that it is difficult to avoid the above problems at the same time when using the existing power transformers on the market, and even if they can be solved, they need to be solved through external tools, which cannot achieve the desired effect. Therefore, we propose a power transformer operation monitoring device. Summary of the invention

[0004] The object of the present invention is to provide a power transformer operation monitoring device to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: a power transformer operation monitoring device, comprising a transformer body and a monitoring mechanism arranged in the inner cavity of the transformer body, wherein a controller is fixedly connected to one side of the transformer body;

[0006] The monitoring mechanism comprises a magnetic field monitoring self-adjusting unit, which is arranged in the inner cavity of the transformer body and is used to monitor whether the magnetic field is disordered;

[0007] The monitoring mechanism further includes a guide unit, the number of the guide units is several, the guide unit is used in conjunction with the magnetic field monitoring self-adjusting unit, and the guide unit is used to guide the magnetic field monitoring self-adjusting unit;

[0008] A timing alarm mechanism is arranged on the top of the transformer body. The timing alarm mechanism is used in conjunction with a monitoring mechanism and is used to give an alarm for a magnetic field disturbance result monitored by the monitoring mechanism.

[0009] Preferably, the magnetic field monitoring self-adjusting unit includes a positioning frame, the positioning frame is fixedly connected to the inner cavity of the transformer body, the positioning frame is located above the coil in the inner cavity of the transformer body, the inner side of the positioning frame is slidably connected to a sliding plate, the top of the sliding plate is provided with a plurality of equally spaced inclined grooves, the top of the positioning frame is fixedly connected to two mounting plates, the two mounting plates are arranged opposite to each other, the inner walls of the two mounting plates are rotatably connected to a rotating shaft, the surface of the rotating shaft is fixedly connected to a first magnet, the number and distribution of the first magnets correspond one-to-one to the inclined grooves, the first magnet is used in conjunction with the inclined grooves, A sliding hole is provided on one side of the positioning frame, and an extrusion plate is fixedly connected to one side of the sliding plate, and the surface of the extrusion plate is slidably connected to the inner cavity of the sliding hole. A placement box is fixedly connected to the inner side of the positioning frame, and a pressure sensor is fixedly connected to the inner side of the placement box. An extrusion rod is fixedly connected to one side of the extrusion plate, and the surface of the extrusion rod is slidably connected to the inner wall of the placement box. The extrusion rod is used in conjunction with the input end of the pressure sensor, and a power supply adjustment component is fixedly connected to the top of the transformer body, and the power supply adjustment component is used to adjust the voltage input to the transformer body. The pressure sensor and the power supply adjustment component are electrically connected.

[0010] Preferably, two guide frames are fixedly connected to the bottom of the positioning frame, guide rods are fixedly connected to the inner sides of the guide frames, sliders are fixedly connected to the two sides of the extrusion plate, the inner walls of the sliders are slidably connected to the surfaces of the guide rods, the sliders are slidably connected to the inner cavity of the guide frame, the surface of the guide rods is sleeved with a first spring, and the two ends of the first spring are respectively fixedly connected to one side of the slider and one side of the inner cavity of the guide frame.

[0011] Preferably, a positioning ring is fixedly connected to the surface of each rotating shaft, a torsion spring is fixedly connected to the surface of the positioning ring, the other end of the torsion spring is fixedly connected to one of the mounting plates, and the torsion spring is sleeved on the surface of the rotating shaft.

[0012] Preferably, the guide unit includes a connecting rod, which is fixedly connected to one side of one of the mounting plates, and ten connecting blocks are fixedly connected to one side of the connecting rod, one end of each connecting block is fixedly connected to a vertical guide frame, a second magnet is slidably connected between every two vertical guide frames, guide blocks are fixedly connected to both sides of the second magnet, and the guide blocks are slidably connected to the inner cavity of the vertical guide frame, a first oblique block is fixedly connected to the side of the second magnet close to the first magnet, and a second oblique block is fixedly connected to the side of the first magnet close to the second magnet, and the first oblique block is used in conjunction with the second oblique block.

[0013] Preferably, both sides of the guide block are fixedly connected to limit blocks, both sides of the vertical guide frame are provided with limit holes, and the surface of the limit block is slidably connected to the inner cavity of the limit hole.

[0014] Preferably, a second spring is fixedly connected to the bottom of the guide block, and a bottom end of the second spring is fixedly connected to the inner bottom wall of the vertical guide frame.

[0015] Preferably, the timing alarm mechanism includes a support rod, the inner wall of the support rod is rotatably connected to a rotating column through a bearing, one end of the rotating column is fixedly connected to a positioning bar, one end of the positioning bar is fixedly connected to an hourglass, one side of the support rod is fixedly connected to a fixing plate, the surface of the fixing plate is fixedly connected to a motor, the output end of the motor is fixedly connected to an adjustment frame, the adjustment frame is sleeved on the surface of the hourglass, the top of the transformer body is fixedly connected to a T-shaped plate, the inner wall of the T-shaped plate is slidably connected to a push rod, one end of the push rod close to the hourglass is fixedly connected to a contact plate, the contact plate is used in conjunction with the hourglass, the bottom of the contact plate is slidably connected to the surface of the T-shaped plate, the surface of the push rod is sleeved with a third spring, one end of the third spring is fixedly connected to one side of the contact plate, the other end of the third spring is fixedly connected to the surface of the T-shaped plate, the top of the T-shaped plate is fixedly connected to a touch switch, the top of the transformer body is fixedly connected to a sound alarm, and the touch switch and the sound alarm are electrically connected.

[0016] Preferably, one side of the support rod is fixedly connected to a limit plate, a slot is provided on the top of the limit plate, one side of the positioning strip is fixedly connected to a clamping strip, and the clamping strip is used in conjunction with the clamping slot.

[0017] Preferably, a protection box is fixedly connected to the top of the transformer body, a protection door is rotatably connected to one side of the protection box via a rotating shaft, and the timing alarm mechanism is located in the inner cavity of the protection box.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The present invention sets a monitoring mechanism and a magnetic field monitoring self-adjusting unit. The magnetic field generated when the inner coil of the transformer body is energized can be used in conjunction with the first magnet with the same polarity thereof to rotate the first magnet, push the sliding plate, and make the pressure sensor generate a pressure value. The pressure value received by the pressure sensor is used to determine whether the magnetic field is disordered. If disordered, the power supply adjustment component is started immediately to adjust the input voltage of the transformer body, check for magnetic flux saturation, and timely check and respond to the magnetic field disorder phenomenon, thereby reducing the negative impact on the normal operation of the transformer body, thereby improving the working efficiency of the transformer body and extending the service life of the transformer body. The guide unit can limit the rotation direction of the first magnet, so that the first magnet can only rotate counterclockwise under the action of the magnetic field with the same polarity, thereby ensuring the uniqueness of the rotation direction of the first magnet and ensuring the stable operation of the magnetic field monitoring self-adjusting unit.

[0020] 2. By setting a timing alarm mechanism, the present invention can provide the magnetic field monitoring self-adjusting unit with sufficient time to check the condition of magnetic field disorder caused by magnetic flux saturation, and realize timely alarm of magnetic field disorder caused by unknown reasons, and promptly notify maintenance personnel to inspect the transformer body, thereby ensuring the normal operation of the transformer body, improving the working efficiency of the transformer body and extending the service life of the transformer body. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the inner cavity of the transformer body of the present invention;

[0023] Figure 3 For the present invention Figure 2 The enlarged schematic diagram of point A in the middle;

[0024] Figure 4 It is a three-dimensional schematic diagram of the magnetic field monitoring self-adjusting unit of the present invention;

[0025] Figure 5 It is a three-dimensional schematic diagram of the guide frame, the guide rod, the sliding block and the first spring of the present invention;

[0026] Figure 6 It is a three-dimensional schematic diagram of the timing alarm mechanism of the present invention;

[0027] Figure 7 It is a three-dimensional schematic diagram of the rotating column of the present invention;

[0028] Figure 8 For the present invention Figure 7 A magnified schematic diagram of point B in the middle.

[0029] In the figure: 1. transformer body; 2. controller; 3. monitoring mechanism; 31. magnetic field monitoring self-adjusting unit; 3101. positioning frame; 3102. sliding plate; 3103. inclined groove; 3104. mounting plate; 3105. rotating shaft; 3106. first magnet; 3107. sliding hole; 3108. extrusion plate; 3109. placement box; 3110. pressure sensor; 3111. extrusion rod; 3112. power supply adjustment member; 3113. guide frame; 3114. guide rod; 3115. slider; 3116. first spring; 3117. positioning ring; 3118. torsion spring; 32. guide unit; 3201. connecting rod; 3202. connecting block ; 3203, vertical guide frame; 3204, second magnet; 3205, guide block; 3206, first inclined block; 3207, second inclined block; 3208, limit block; 3209, limit hole; 3210, second spring; 4, timing alarm mechanism; 401, support rod; 402, rotating column; 403, positioning bar; 404, hourglass; 405, fixing plate; 406, motor; 407, adjustment frame; 408, T-shaped plate; 409, push rod; 410, contact plate; 411, third spring; 412, touch switch; 413, sound alarm; 414, limit plate; 415, card slot; 416, card strip; 417, protective box; 418, protective door. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] Example 1: Please refer to Figure 1-Figure 8 The present invention provides a technical solution: a power transformer operation monitoring device, comprising a transformer body 1 and a monitoring mechanism 3 arranged in the inner cavity of the transformer body 1, and a controller 2 is fixedly connected to one side of the transformer body 1; the monitoring mechanism 3 comprises a magnetic field monitoring self-adjusting unit 31, and the magnetic field monitoring self-adjusting unit 31 is arranged in the inner cavity of the transformer body 1, and the magnetic field monitoring self-adjusting unit 31 is used to monitor whether the magnetic field is disordered.

[0032] As a further limitation of the monitoring mechanism 3 of the present invention, please refer to Figure 1 , Figure 2 and Figure 4The magnetic field monitoring self-adjusting unit 31 includes a positioning frame 3101, which is fixedly connected to the inner cavity of the transformer body 1. The positioning frame 3101 is located above the inner cavity coil of the transformer body 1. A sliding plate 3102 is slidably connected to the inner side of the positioning frame 3101. The top of the sliding plate 3102 is provided with a plurality of equidistantly arranged inclined grooves 3103. The top of the positioning frame 3101 is fixedly connected to two mounting plates 3104. The two mounting plates 3104 are arranged opposite to each other. The inner walls of the two mounting plates 3104 are rotatably connected to a rotating shaft 3105. The rotating shaft 31 05 is fixedly connected with a first magnet 3106, the number and distribution of the first magnet 3106 correspond to the inclined slot 3103 one by one, the first magnet 3106 is used in conjunction with the inclined slot 3103, a sliding hole 3107 is provided on one side of the positioning frame 3101, a pressing plate 3108 is fixedly connected to one side of the sliding plate 3102, the surface of the pressing plate 3108 is slidably connected to the inner cavity of the sliding hole 3107, a placing box 3109 is fixedly connected to the inner side of the positioning frame 3101, a pressure sensor 3110 is fixedly connected to the inner side of the placing box 3109, and the pressing plate 3108 is fixedly connected to the inner side of the placing box 3109. A squeeze rod 3111 is fixedly connected to one side of the transformer body 1, and the surface of the squeeze rod 3111 is slidably connected to the inner wall of the placement box 3109. The squeeze rod 3111 is used in conjunction with the input end of the pressure sensor 3110. A power supply adjustment member 3112 is fixedly connected to the top of the transformer body 1. The power supply adjustment member 3112 is used to adjust the voltage input to the transformer body 1. The pressure sensor 3110 is electrically connected to the power supply adjustment member 3112. By setting the magnetic field monitoring self-adjusting unit 31, the magnetic field generated by the inner cavity coil of the transformer body 1 when it is energized and the magnetic field with the same polarity as that of the inner cavity coil of the transformer body 1 can be adjusted. The first magnet 3106 is used in combination to rotate the first magnet 3106 and push the sliding plate 3102, so that the pressure sensor 3110 generates a pressure value. The pressure value received by the pressure sensor 3110 is used to determine whether the magnetic field is disordered. If it is disordered, the power adjustment component 3112 is started immediately to adjust the input voltage of the transformer body 1, check for magnetic flux saturation, and respond to the magnetic field disorder phenomenon in a timely manner, thereby reducing the negative impact on the normal operation of the transformer body 1, thereby improving the working efficiency of the transformer body 1 and extending the service life of the transformer body 1.

[0033] See also Figure 4 and Figure 5The bottom of the positioning frame 3101 is fixedly connected to two guide frames 3113, the inner side of the guide frame 3113 is fixedly connected to a guide rod 3114, and both sides of the extrusion plate 3108 are fixedly connected to sliders 3115, the inner wall of the slider 3115 is slidably connected to the surface of the guide rod 3114, the slider 3115 is slidably connected to the inner cavity of the guide frame 3113, and the surface of the guide rod 3114 is sleeved with a first spring 3116, and the two ends of the first spring 3116 are respectively fixedly connected to one side of the slider 3115 and one side of the inner cavity of the guide frame 3113; by setting the guide frame 3113, the guide rod 3114, the slider 3115 and the first spring 3116, the sliding plate 3102 is guided, the stability of the sliding plate 3102 when moving is increased, and the elastic limitation of the moving distance of the sliding plate 3102 is realized, and the first spring 3116 can realize the resetting of the sliding plate 3102.

[0034] See also Figure 3 and Figure 4 A positioning ring 3117 is fixedly connected to the surface of each rotating shaft 3105, and a torsion spring 3118 is fixedly connected to the surface of the positioning ring 3117. The other end of the torsion spring 3118 is fixedly connected to one of the mounting plates 3104, and the torsion spring 3118 is sleeved on the surface of the rotating shaft 3105; by setting the positioning ring 3117 and the torsion spring 3118, the torsion spring 3118 is a weak spring. When affected by the magnetic field, the first magnet 3106 will rotate, which can realize the resetting of the rotation angle of the rotating shaft 3105, ensuring that the first magnet 3106 is always in a vertical state after losing the force of the magnetic field of the same polarity, thereby ensuring the smooth monitoring of the operation state of the magnetic field.

[0035] The specific implementation of this embodiment is as follows: after the transformer body 1 is powered on, the coil in the transformer body 1 will generate a vertical annular magnetic field. When the magnetic field trajectory runs above the coil, the first magnet 3106 and the magnetic field at this end are of the same polarity. When the magnetic field runs below the first magnet 3106, the first magnet 3106 rotates according to the principle of like charges repelling each other. The first magnet 3106 is limited in its rotation direction by the guide unit 32, so that the first magnet 3106 can only rotate counterclockwise under the push of the magnetic field of the same polarity. Five first magnets 3106 are connected to the surface of each rotating shaft 3105. When the magnetic field of the same polarity causes the five first magnets 3106 to rotate, the first magnet 3106 rotates counterclockwise. 6 is flipped, the five first magnets 3106 are supported during rotation by the rotating shaft 3105 and the mounting plate 3104. In the initial state, all the first magnets 3106 are elastically limited in angle by the torsion spring 3118, so that they are in a vertical state. When all the first magnets 3106 rotate counterclockwise synchronously, they produce a lateral push on the inclined slot 3103, thereby producing a lateral push on the sliding plate 3102. When the sliding plate 3102 moves horizontally, it drives the slider 3115 to move. The slider 3115 moves on the surface of the guide rod 3114, which increases the stability of the sliding plate 3102 during movement. When the slider 3115 moves, the first spring 3118 is pressed against the slider 3115. 116 is compressed, at this time, the lateral movement of the sliding plate 3102 pushes the extrusion plate 3108 to slide in the inner cavity of the sliding hole 3107, and the movement of the extrusion plate 3108 pushes the extrusion rod 3111 to produce lateral movement. The extrusion rod 3111 after lateral movement applies pressure to the pressure sensor 3110 in the placement box 3109, so that the pressure sensor 3110 generates a value. When the magnetic field is normal, the value transmitted to the pressure sensor 3110 is a periodic value. When the magnetic field is disordered, the value transmitted to the pressure sensor 3110 is also a value without any rules. When a disordered value appears, the pressure sensor 3110 converts the value into an electrical signal for transmission. To the controller 2, the power supply adjustment component 3112 and the timing alarm mechanism 4 are started simultaneously through the controller 2, the voltage of the input transformer body 1 is adjusted through the power supply adjustment component 3112, and then the value received by the pressure sensor 3110 is observed. If the value returns to the normal value within the time set by the timing alarm mechanism 4, the timing alarm mechanism 4 is reset and the timing alarm mechanism 4 is closed. When the first magnet 3106 cancels the pushing force on the inclined slot 3103, the reaction force of the first spring 3116 can drive the sliding plate 3102 to reset, thereby realizing the monitoring of the magnetic field state of the transformer body 1 and the preliminary self-adjustment to check the magnetic flux saturation at the first time.

[0036] Example 2: Please refer to Figure 3The present invention provides a technical solution: a power transformer operation monitoring device. The present invention makes corresponding improvements to the technical problems mentioned in the background technology. The monitoring mechanism 3 also includes a guide unit 32. The number of the guide units 32 is several. The guide unit 32 is used in conjunction with the magnetic field monitoring self-adjusting unit 31. The guide unit 32 is used to guide the magnetic field monitoring self-adjusting unit 31.

[0037] As a further limitation of the monitoring mechanism 3 of the present invention, the guide unit 32 includes a connecting rod 3201, the connecting rod 3201 is fixedly connected to one side of one of the mounting plates 3104, one side of the connecting rod 3201 is fixedly connected with ten connecting blocks 3202, one end of each connecting block 3202 is fixedly connected with a vertical guide frame 3203, a second magnet 3204 is slidably connected between every two vertical guide frames 3203, both sides of the second magnet 3204 are fixedly connected with a guide block 3205, the guide block 3205 is slidably connected to the inner cavity of the vertical guide frame 3203, and the second magnet A first bevel block 3206 is fixedly connected to one side of 3204 close to the first magnet 3106, and a second bevel block 3207 is fixedly connected to one side of the first magnet 3106 close to the second magnet 3204, and the first bevel block 3206 and the second bevel block 3207 are used in conjunction with each other; by setting the guide unit 32, the rotation direction of the first magnet 3106 can be limited, so that the first magnet 3106 can only produce counterclockwise rotation under the action of the magnetic field of the same polarity, thereby ensuring the uniqueness of the rotation direction of the first magnet 3106 and ensuring the stable operation of the magnetic field monitoring self-adjusting unit 31.

[0038] Limiting blocks 3208 are fixedly connected to both sides of the guide block 3205, and limiting holes 3209 are opened on both sides of the vertical guide frame 3203. The surface of the limiting block 3208 is slidably connected to the inner cavity of the limiting hole 3209; by setting the limiting block 3208 and the limiting hole 3209, vertical guidance of the moving trajectory of the limiting block 3208 is achieved, ensuring the stability of the guide block 3205 during vertical movement, thereby increasing the stability of the second magnet 3204 during vertical movement.

[0039] A second spring 3210 is fixedly connected to the bottom of the guide block 3205, and the bottom end of the second spring 3210 is fixedly connected to the inner bottom wall of the vertical guide frame 3203; by setting the second spring 3210, when the guide block 3205 moves upward, the second spring 3210 is stretched, and the elastic limitation of the moving distance of the guide block 3205 is achieved by the second spring 3210. When the guide block 3205 loses the upward force, the reaction force of the second spring 3210 can achieve the reset of the guide block 3205, thereby achieving the reset of the second magnet 3204.

[0040] The specific implementation of this embodiment is as follows: when the magnetic field of the same polarity moves to the bottom of the first magnet 3106 and the second magnet 3204, like polarities repel each other, and the magnetic field of the same polarity causes the first magnet 3106 to rotate, causing the second magnet 3204 to move vertically upward. The upward movement of the second magnet 3204 drives the guide block 3205 to move upward in the inner cavity of the vertical guide frame 3203, thereby increasing the stability of the second magnet 3204 when moving upward. The guide block 3205 passes through the limit block 3208 and the limit hole 3209 in the inner cavity of the vertical guide frame 3203. The vertical guidance further increases the stability of the second magnet 3204 when it moves vertically. When the second magnet 3204 moves upward, it drives the first inclined block 3206 to move upward. When the first inclined block 3206 moves upward, it generates a lateral thrust on the second inclined block 3207, so that the first magnet 3106 flips counterclockwise at a certain angle, thereby achieving the guidance of the rotation direction of the first magnet 3106, ensuring the stable operation of the magnetic field monitoring self-adjusting unit 31, and ensuring the stable operation of the transformer body 1.

[0041] Example 3: Please refer to Figure 6 and Figure 7 The present invention provides a technical solution: a power transformer operation monitoring device. The present invention makes corresponding improvements to the technical problems mentioned in the background technology. A timing alarm mechanism 4 is arranged on the top of the transformer body 1. The timing alarm mechanism 4 is used in conjunction with a monitoring mechanism 3. The timing alarm mechanism 4 is used to alarm the magnetic field disorder result monitored by the monitoring mechanism 3.

[0042] As a further limitation of the timing alarm mechanism 4 of the present invention, the timing alarm mechanism 4 includes a support rod 401, the inner wall of the support rod 401 is rotatably connected to a rotating column 402 through a bearing, one end of the rotating column 402 is fixedly connected to a positioning bar 403, one end of the positioning bar 403 is fixedly connected to an hourglass 404, one side of the support rod 401 is fixedly connected to a fixing plate 405, the surface of the fixing plate 405 is fixedly connected to a motor 406, the output end of the motor 406 is fixedly connected to an adjustment frame 407, the adjustment frame 407 is sleeved on the surface of the hourglass 404, the top of the transformer body 1 is fixedly connected to a T-shaped plate 408, the inner wall of the T-shaped plate 408 is slidably connected to a push rod 409, the end of the push rod 409 close to the hourglass 404 is fixedly connected to a contact plate 410, the contact plate 410 is used in conjunction with the hourglass 404, and the bottom of the contact plate 410 is in contact with the T-shaped plate 408. The surface is slidingly connected, and a third spring 411 is sleeved on the surface of the push rod 409. One end of the third spring 411 is fixedly connected to one side of the contact plate 410, and the other end of the third spring 411 is fixedly connected to the surface of the T-shaped plate 408. A touch switch 412 is fixedly connected to the top of the T-shaped plate 408, and a sound alarm 413 is fixedly connected to the top of the transformer body 1. The touch switch 412 and the sound alarm 413 are electrically connected. By setting a timing alarm mechanism 4, sufficient time can be provided for the magnetic field monitoring self-adjusting unit 31 to check the magnetic field disorder caused by magnetic flux saturation, and timely alarm is realized for the magnetic field disorder caused by unknown reasons, so that maintenance personnel can inspect the transformer body 1, thereby ensuring the normal operation of the transformer body 1, improving the working efficiency of the transformer body 1 and extending the service life of the transformer body 1.

[0043] See also Figure 7 and Figure 8 , one side of the support rod 401 is fixedly connected to a limiting plate 414, a slot 415 is provided on the top of the limiting plate 414, and one side of the positioning strip 403 is fixedly connected to a clip 416, which is used in conjunction with the slot 415; by setting the limiting plate 414, the slot 415 and the clip 416, when the clip 416 follows the positioning strip 403 to flip and embed into the inner cavity of the slot 415, the large volume end of the hourglass 404 is directly above, and the small volume end of the hourglass 404 is directly below. The shape of the hourglass 404 is large at one end and small at the other end. When the large volume end of the hourglass 404 is below the small volume end, the hourglass 404 is used to push the contact plate 410, and when the small volume end of the hourglass 404 is below the large volume end, it is used to restore the sand in the hourglass 404, so that the flip angle of the hourglass 404 is limited by the use of the slot 415 and the clip 416.

[0044] See also Figure 1 and Figure 2A protective box 417 is fixedly connected to the top of the transformer body 1, and a protective door 418 is rotatably connected to one side of the protective box 417 through a rotating shaft. The timing alarm mechanism 4 is located in the inner cavity of the protective box 417; by setting the protective box 417, the timing alarm mechanism 4 can be prevented from being exposed to wind, sun and rain, thereby extending the service life of the timing alarm mechanism 4 and its accuracy during use. By setting the protective door 418, it is convenient for maintenance personnel to inspect and repair the timing alarm mechanism 4. The protective box 417 is made of non-soundproof material to avoid isolating the sound generated by the sound alarm 413.

[0045] The specific implementation of this embodiment is as follows: when the pressure sensor 3110 detects an abnormal value, the power supply adjustment component 3112 and the timing alarm mechanism 4 are started by the controller 2 at the same time. The time for the power supply adjustment component 3112 to adjust the voltage of the input transformer body 1 is less than the timing time of the hourglass 404. During the timing time of the hourglass 404, the power supply adjustment component 3112 can complete the adjustment of the input voltage while also completing the monitoring of several groups of values ​​by the pressure sensor 3110. If the value regresses to periodicity, the timing alarm mechanism 4 is reset and turned off. If the hourglass 404 timing ends and the value is still abnormal, an alarm is sounded through the timing alarm mechanism 4. When the timing alarm mechanism 4 is started, the controller 2 starts the motor 406, and the motor 4 06 is supported and positioned by the support rod 401 and the fixed plate 405. The rotation of the output end of the motor 406 drives the adjustment frame 407 to rotate. The hourglass 404 is shaped in a way that one end is large and the other end is small. The small end of the hourglass 404 can accommodate all the sand in the hourglass 404, so as to store the sand when the timing is reset to zero. In the initial state, the small end of the hourglass 404 is at the bottom and the large end of the hourglass 404 is at the top. All the sand is stored in the small end of the hourglass 404. When the motor 406 is started, the adjustment frame 407 is driven to flip. When the adjustment frame 407 flips, it contacts the hourglass 404, driving the hourglass 404 to rotate. The hourglass 404 rotates on one side of the support rod 401 through the positioning strip 403 and the rotating column 402. When the large end of the hourglass 404 flips to the contact When one side of the touch plate 410 contacts, the motor 406 stops rotating. At this time, the small end of the hourglass 404 filled with sand is located obliquely above the large end of the hourglass 404. The sand will gradually enter the large end of the hourglass 404 due to gravity, and the timing will start. As the sand gradually enters the large end of the hourglass 404, the driving force of the large end of the hourglass 404 on the contact plate 410 is increased, and the contact plate 410 is pushed laterally, so that the contact plate 410 gradually moves laterally on the top of the T-shaped plate 408. The lateral movement of the contact plate 410 pushes the push rod 409 to move laterally and compress the third spring 411. When the sand completely enters the large end of the hourglass 404, the driving force of the hourglass 404 on the contact plate 410 completely exceeds the elastic coefficient of the third spring 411, so as to achieve the third The full compression of the spring 411 causes the push rod 409 to squeeze the touch switch 412, thereby activating the sound alarm 413, so as to promptly notify the maintenance personnel of the magnetic field disorder of the transformer body 1. When the hourglass 404 is reset to zero, the output end of the motor 406 is rotated in the reverse direction. The forward and reverse rotation strokes of the motor 406 are pre-set to ensure that the hourglass 404 is in contact with the contact plate 410 after the forward rotation, and the card strip 416 is embedded in the inner cavity of the card slot 415 after the reverse rotation. The rotation of the output end of the motor 406 drives the adjustment frame 407 to flip, so that the hourglass 404 rotates in the reverse direction until the small end of the hourglass 404 is vertically downward and the large end of the hourglass 404 is vertically upward. At this time, the card strip 416 is embedded in the inner cavity of the card slot 415.One side of the adjustment frame 407 contacts the surface of the hourglass 404, and cooperates with the clamping strip 416 and the clamping slot 415 to realize the vertical limit of the hourglass 404 when the timing is reset to zero. The controller 2 is used to control the power supply of the magnetic field monitoring mechanism 3 and the timing alarm mechanism 4. The controller 2 is a PLC controller.

[0046] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0047] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A power transformer operation monitoring device, comprising a transformer body (1) and a monitoring mechanism (3) arranged in the inner cavity of the transformer body (1), characterized in that: A controller (2) is fixedly connected to one side of the transformer body (1); the monitoring mechanism (3) comprises a magnetic field monitoring self-adjusting unit (31), the magnetic field monitoring self-adjusting unit (31) is arranged in the inner cavity of the transformer body (1), and the magnetic field monitoring self-adjusting unit (31) is used to monitor whether the magnetic field is disordered; The monitoring mechanism (3) further comprises a guide unit (32), the number of the guide units (32) is several, the guide unit (32) is used in conjunction with the magnetic field monitoring self-adjusting unit (31), and the guide unit (32) is used to guide the magnetic field monitoring self-adjusting unit (31); A timing alarm mechanism (4) is provided on the top of the transformer body (1); the timing alarm mechanism (4) is used in conjunction with the monitoring mechanism (3); the timing alarm mechanism (4) is used to alarm the result of magnetic field disturbance monitored by the monitoring mechanism (3); The magnetic field monitoring self-adjusting unit (31) comprises a positioning frame (3101), the positioning frame (3101) is fixedly connected to the inner cavity of the transformer body (1), the positioning frame (3101) is located above the inner cavity coil of the transformer body (1), the inner side of the positioning frame (3101) is slidably connected to a sliding plate (3102), the top of the sliding plate (3102) is provided with a plurality of equidistantly arranged inclined grooves (3103), and the top of the positioning frame (3101) is fixedly connected to the inner cavity of the transformer body (1). Two mounting plates (3104) are connected, the two mounting plates (3104) are arranged opposite to each other, the inner walls of the two mounting plates (3104) are connected to a rotating shaft (3105) for rotation, the surface of the rotating shaft (3105) is fixedly connected to a first magnet (3106), the number and distribution of the first magnets (3106) correspond to the inclined groove (3103) one by one, the first magnets (3106) are used in conjunction with the inclined groove (3103), and the positioning frame (31 01) is provided with a sliding hole (3107), one side of the sliding plate (3102) is fixedly connected to an extrusion plate (3108), the surface of the extrusion plate (3108) is slidably connected to the inner cavity of the sliding hole (3107), the inner side of the positioning frame (3101) is fixedly connected to a placement box (3109), the inner side of the placement box (3109) is fixedly connected to a pressure sensor (3110), one side of the extrusion plate (3108) is fixedly connected to an extrusion rod (3111). 111), the surface of the extrusion rod (3111) is slidably connected to the inner wall of the placement box (3109), the extrusion rod (3111) is used in conjunction with the input end of the pressure sensor (3110), the top of the transformer body (1) is fixedly connected with a power adjustment member (3112), the power adjustment member (3112) is used to adjust the voltage input to the transformer body (1), and the pressure sensor (3110) and the power adjustment member (3112) are electrically connected.

2. A power transformer operation monitoring device according to claim 1, characterized in that: The bottom of the positioning frame (3101) is fixedly connected to two guide frames (3113), the inner side of the guide frame (3113) is fixedly connected to a guide rod (3114), both sides of the extrusion plate (3108) are fixedly connected to sliders (3115), the inner wall of the slider (3115) is slidably connected to the surface of the guide rod (3114), the slider (3115) is slidably connected to the inner cavity of the guide frame (3113), the surface of the guide rod (3114) is sleeved with a first spring (3116), and the two ends of the first spring (3116) are respectively fixedly connected to one side of the slider (3115) and one side of the inner cavity of the guide frame (3113).

3. The power transformer operation monitoring device according to claim 1, characterized in that: A positioning ring (3117) is fixedly connected to the surface of each rotating shaft (3105), and a torsion spring (3118) is fixedly connected to the surface of the positioning ring (3117). The other end of the torsion spring (3118) is fixedly connected to one of the mounting plates (3104), and the torsion spring (3118) is sleeved on the surface of the rotating shaft (3105).

4. The power transformer operation monitoring device according to claim 1, characterized in that: The guide unit (32) comprises a connecting rod (3201), wherein the connecting rod (3201) is fixedly connected to one side of one of the mounting plates (3104), and ten connecting blocks (3202) are fixedly connected to one side of the connecting rod (3201), and one end of each connecting block (3202) is fixedly connected to a vertical guide frame (3203), and a second magnet (3204) is slidably connected between every two vertical guide frames (3203), and the second magnet (3204) Both sides of the guide frame (3203) are fixedly connected with guide blocks (3205), and the guide blocks (3205) are slidably connected to the inner cavity of the vertical guide frame (3203). The side of the second magnet (3204) close to the first magnet (3106) is fixedly connected with a first inclined block (3206), and the side of the first magnet (3106) close to the second magnet (3204) is fixedly connected with a second inclined block (3207). The first inclined block (3206) and the second inclined block (3207) are used in conjunction with each other.

5. A power transformer operation monitoring device according to claim 4, characterized in that: The guide block (3205) is fixedly connected to the limiting blocks (3208) on both sides, and the vertical guide frame (3203) is provided with limiting holes (3209) on both sides, and the surface of the limiting block (3208) is slidably connected to the inner cavity of the limiting hole (3209).

6. The power transformer operation monitoring device according to claim 4, characterized in that: The bottom of the guide block (3205) is fixedly connected to a second spring (3210), and the bottom end of the second spring (3210) is fixedly connected to the inner bottom wall of the vertical guide frame (3203).

7. The power transformer operation monitoring device according to claim 1, characterized in that: The timing alarm mechanism (4) comprises a support rod (401), the inner wall of the support rod (401) is rotatably connected to a rotating column (402) via a bearing, one end of the rotating column (402) is fixedly connected to a positioning bar (403), one end of the positioning bar (403) is fixedly connected to an hourglass (404), one side of the support rod (401) is fixedly connected to a fixing plate (405), the surface of the fixing plate (405) is fixedly connected to a motor (406), the output end of the motor (406) is fixedly connected to an adjustment frame (407), the adjustment frame (407) is sleeved on the surface of the hourglass (404), the top of the transformer body (1) is fixedly connected to a T-shaped plate (408), the inner wall of the T-shaped plate (408) is slidably connected to a push rod (409), The end of the push rod (409) close to the hourglass (404) is fixedly connected to a contact plate (410), and the contact plate (410) is used in conjunction with the hourglass (404). The bottom of the contact plate (410) is slidably connected to the surface of the T-shaped plate (408). The surface of the push rod (409) is sleeved with a third spring (411), one end of the third spring (411) is fixedly connected to one side of the contact plate (410), and the other end of the third spring (411) is fixedly connected to the surface of the T-shaped plate (408). The top of the T-shaped plate (408) is fixedly connected to a touch switch (412), and the top of the transformer body (1) is fixedly connected to a sound alarm (413), and the touch switch (412) and the sound alarm (413) are electrically connected.

8. The power transformer operation monitoring device according to claim 7, characterized in that: One side of the support rod (401) is fixedly connected to a limiting plate (414), a clamping slot (415) is provided on the top of the limiting plate (414), one side of the positioning strip (403) is fixedly connected to a clamping strip (416), and the clamping strip (416) is used in conjunction with the clamping slot (415).

9. The power transformer operation monitoring device according to claim 1, characterized in that: A protection box (417) is fixedly connected to the top of the transformer body (1), a protection door (418) is rotatably connected to one side of the protection box (417) via a rotating shaft, and the timing alarm mechanism (4) is located in the inner cavity of the protection box (417).

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