A device for quickly finding voltage transformer faults

Abstract

The present invention discloses a device for quickly finding faults of voltage transformers. The bottom of the side cover plate is hinged on one side of the fixed shell plate. The bottom of the fixed shell plate and the inner side of the side cover plate are both provided with a slide groove. The bottom plate of the frame is fixedly connected with a slide seat. The bottom of the slide seat is slidably connected to the inside of the slide groove. The outside of the frame is fixedly connected with a support frame. The outside of the support frame is fixedly connected with a rotating shaft. One end of the linkage push rod is fixedly connected with a shaft sleeve. The other end of the linkage push rod is rotatably connected with the support seat. A melting tube bin is installed inside the quick-release fixed sleeve. One end of the pull-out plug is plugged into the inside of the fixed shell plate. The inside of the frame is clamped with an iron core. The device for quickly finding faults of voltage transformers is arranged by the cooperation of the frame and the linkage push rod. Under the push of the linkage push rod, the frame and the internal iron core can be separated from the clamping of the fixed shell plate and slide out along the slide groove, so that the voltage transformer can be quickly checked when it fails, and the touch of human hands is avoided, which has good safety.

Description

Technical Field

[0001] The invention relates to the technical field of power equipment fault detection, in particular to a device for quickly detecting a voltage transformer fault. Background Art

[0002] In order to ensure the safety of the power system and prevent accidents from expanding, the electromagnetic voltage transformer is generally taken out of operation and inspected by professional testers. When the electromagnetic voltage transformer is in operation for a long time, the temperature will naturally rise. When the insulation between turns is poor, the insulation will also decrease, forming a short circuit between turns, resulting in abnormal monitoring voltage. Capacitive voltage transformers will have changes in capacitance, causing changes in the secondary monitoring voltage. When the testers arrived at the work site for testing, the temperature of the electromagnetic voltage transformer had dropped and the insulation between turns had recovered. Since the test voltage provided by the ratio bridge tester is relatively low, it is easy to make misjudgments when measuring electromagnetic voltage transformers with restored insulation between turns.

[0003] When a fault occurs inside the voltage transformer, the voltage transformer cabinet can be quickly opened to check the main components such as the internal core turns to avoid the fault disappearing due to gradual cooling, which makes it impossible to check. During the inspection, the safety of the maintenance personnel must be ensured to avoid high temperature burns. For this reason, a device for quickly finding voltage transformer faults is urgently needed. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the present invention provides a device for quickly finding faults in voltage transformers, which has the advantages of being able to quickly push out the iron core for troubleshooting, being safe and convenient, and solving the above-mentioned problems.

[0006] (II) Technical solution

[0007] In order to achieve the above-mentioned purposes of being able to quickly push out the iron core for troubleshooting, safety, convenience, etc., the present invention provides the following technical solutions: a device for quickly finding voltage transformer faults, comprising a fixed shell plate, a side cover plate, a frame, a linkage push rod, a quick-release fixing sleeve, and a pull-out plug, the bottom of the side cover plate being hinged to one side of the fixed shell plate, the bottom of the fixed shell plate and the inner side of the side cover plate are both provided with a slide groove, the bottom plate of the frame is fixedly connected with a slide seat, the bottom of the slide seat is slidably connected to the inside of the slide groove, the outside of the frame is fixedly connected with a support frame, the outside of the support frame is fixedly connected with a rotating shaft, one end of the linkage push rod is fixedly connected with a shaft sleeve, the other end of the linkage push rod is rotatably connected to the support seat, the shaft sleeve is rotatably connected to the outside of the rotating shaft, the quick-release fixing sleeve is arranged on the top of the fixed shell plate, a melting tube bin is installed inside the quick-release fixing sleeve, one end of the pull-out plug is plugged into the inside of the fixed shell plate, and the inside of the frame is clamped with an iron core.

[0008] Preferably, the bottom of the fixed shell plate is fixedly connected to a support base, and the left and right side surfaces of the fixed shell plate are both provided with smooth bores.

[0009] Preferably, the linkage push rod is divided into two sections, a front section and a rear section; a rotating seat is rotatably connected between the two sections of the linkage push rod; and a pressing wrench is fixedly connected to the outer side of the rotating seat.

[0010] Preferably, one end of the pressing wrench is inserted into the interior of the sliding bore and can move up and down along the interior of the sliding bore.

[0011] Preferably, the support base is fixedly connected to two sides of the back of the fixed shell plate, and a heat dissipation groove is provided on the back of the fixed shell plate.

[0012] Preferably, a round pad is fixedly connected to the outer side of the side cover plate, and a buckle is fixedly connected to the top of the side cover plate, and the buckle can be snapped to the upper end of the fixed shell plate.

[0013] Preferably, a compression lock is fixedly connected to the back of the fixed shell plate, and a rotating rod of the compression lock is fixedly connected to the outer side of the pull-out plug.

[0014] Preferably, a movable seat is fixedly connected to one side of the support frame, and the movable seat is slidably connected to the inside of the slide bore.

[0015] Preferably, an exhaust port is provided on the top of the fixed shell plate, and the exhaust port is located directly above the iron core.

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the present invention provides a device for quickly finding voltage transformer faults, which has the following beneficial effects:

[0018] 1. The device for quickly finding faults of voltage transformers can realize rapid separation of the internal iron core of the voltage transformer from other components such as the melting tube bin through the coordinated arrangement of the quick-release fixing sleeve, the pull-out plug and the compression lock, thereby providing feasibility for rapid withdrawal of the iron core; through the coordinated arrangement of the frame and the linkage push rod, the slide seat at the bottom of the frame is slidably connected to the inside of the slide groove at the bottom of the fixed shell plate, and under the push of the linkage push rod, the frame together with the internal iron core can be separated from the clamping of the fixed shell plate and slide out along the slide groove, thereby realizing rapid pulling out of the iron core assembly, ensuring that the voltage transformer fault can be quickly checked, and avoiding human hand touch, with good safety.

[0019] 2. The device for quickly finding voltage transformer faults is provided with a side cover plate, the bottom of which is hinged to the bottom of the fixed shell plate, which is snap-fitted to the top of the fixed shell plate through a buckle, and can be flipped backward along the hinge. After flipping, the upper end of the entire side cover plate is flush with the bottom of the fixed shell plate, so that the slide groove on the inner side of the side cover plate is butted with the slide groove at the bottom of the fixed shell plate, thereby realizing the smooth pushing out of the frame. The device can complete the rapid troubleshooting of voltage transformer faults and ensure the safety of maintenance personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the first structural form of the side cover plate proposed by the present invention;

[0021] Figure 2 This is a schematic diagram of the structure of the fixed shell plate proposed by the present invention;

[0022] Figure 3 This is a schematic diagram of the second structural form of the side cover plate proposed by the present invention;

[0023] Figure 4 A schematic diagram of the structure of the frame and the iron core proposed by the present invention;

[0024] Figure 5 This is a schematic diagram of the structure of the frame and the slideway proposed by the present invention;

[0025] Figure 6 This is a schematic structural diagram of the support frame and the rotating shaft proposed in the present invention.

[0026] In the figure: 1. fixed shell plate; 2. side cover plate; 3. frame; 301. support frame; 4. linkage push rod; 5. quick-release fixing sleeve; 6. pull-out plug; 7. slide groove; 8. slide seat; 9. rotating shaft; 10. shaft sleeve; 11. support seat; 12. melting tube bin; 13. iron core; 14. supporting base; 15. smooth bore; 16. rotating seat; 17. pressing wrench; 18. round pad; 19. buckle; 20. press lock; 21. heat sink; 22. movable seat; 23. exhaust vent. DETAILED DESCRIPTION

[0027] 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.

[0028] See also Figure 1-6A device for quickly finding faults of a voltage transformer comprises a fixed shell plate 1, a side cover plate 2, a frame 3, a linkage push rod 4, a quick-release fixing sleeve 5, and a pull-out plug 6. The bottom of the fixed shell plate 1 is fixedly connected with a support base 14, and the left and right sides of the fixed shell plate 1 are provided with a smooth bore 15. The bottom of the side cover plate 2 is hinged to one side of the fixed shell plate 1, and the bottom of the fixed shell plate 1 and the inner side of the side cover plate 2 are provided with a slide groove 7. The outer side of the side cover plate 2 is fixedly connected with a round pad 18, and the top of the side cover plate 2 is fixedly connected with a buckle 19, which can be snapped to the upper end of the fixed shell plate 1. Through the setting of the side cover plate 2, the bottom of the side cover plate 2 is hinged to the bottom of the fixed shell plate 1, and is snapped to the top of the fixed shell plate 1 through the buckle 19, and can be flipped backward along the hinge. After flipping, the upper end of the entire side cover plate 2 is flush with the bottom of the fixed shell plate 1, so that the slide groove 7 on the inner side of the side cover plate 2 is docked with the slide groove 7 at the bottom of the fixed shell plate 1, realizing the smooth push-out of the frame 3. The device can complete the rapid troubleshooting of the voltage transformer fault and can ensure the safety of the maintenance personnel. The bottom plate of the frame 3 is fixedly connected with a slide seat 8, and the bottom of the slide seat 8 is slidably connected to the inside of the slide groove 7. The outside of the frame 3 is fixedly connected with a support frame 301, and one side of the support frame 301 is fixedly connected with a moving seat 22, and the moving seat 22 is slidably connected to the inside of the slide bore 15. The outside of the support frame 301 is fixedly connected with a rotating shaft 9, one end of the linkage push rod 4 is fixedly connected with a shaft sleeve 10, and the other end of the linkage push rod 4 is rotatably connected to the support seat 11. The support seat 11 is fixedly connected to both sides of the back of the fixed shell plate 1, and a heat dissipation groove 21 is provided on the back of the fixed shell plate 1. The linkage push rod 4 is divided into two sections, front and rear, and a rotating seat 16 is rotatably connected between the two sections of the linkage push rod 4. A pressing wrench 17 is fixedly connected to the outer side of the rotating seat 16, and one end of the pressing wrench 17 is inserted into the interior of the smooth bore 15, and can be moved up and down inside the smooth bore 15. The shaft sleeve 10 is rotatably connected to the outer side of the rotating shaft 9, and the quick-release fixed sleeve 5 is arranged on the top of the fixed shell plate 1, and a pressure lock 20 is fixedly connected to the back of the fixed shell plate 1, and the rotating rod of the pressure lock 20 is fixedly connected to the outer side of the pull-out plug 6. An exhaust port 23 is provided on the top of the fixed shell plate 1, and the exhaust port 23 is located directly above the iron core 13. The melting tube bin 12 is installed inside the quick-release fixed sleeve 5. One end of the pull-out plug 6 is inserted into the interior of the fixed shell plate 1, and the iron core 13 is clamped inside the frame 3. Through the coordinated arrangement of the quick-release fixing sleeve 5, the pull-out plug 6 and the compression lock 20, the internal iron core of the voltage transformer is quickly separated from other components such as the melting tube bin 12, thereby providing feasibility for the rapid withdrawal of the iron core 13. Through the coordinated arrangement of the frame 3 and the linkage push rod 4, the slide seat 8 at the bottom of the frame 3 is slidably connected to the inside of the slide groove 7 at the bottom of the fixed shell plate 1. Under the push of the linkage push rod 4, the frame 3 together with the internal iron core 13 can be separated from the clamping of the fixed shell plate 1 and slide out along the slide groove 7, thereby realizing the rapid pulling out of the iron core assembly, ensuring that the voltage transformer fault can be quickly checked, and avoiding human hand touch, with good safety.

[0029] During use, when the electromagnetic voltage transformer runs for a long time, the temperature will naturally rise, the insulation between turns will be poor, and a short circuit between turns will be formed, resulting in abnormal monitoring voltage. At this time, it is necessary to troubleshoot the fault and check whether there is a problem inside the iron core. In order to enable the iron core 13 to quickly disconnect from other internal components, we use a quick-release fixing sleeve 5 to fix the melting tube bin 12. It is only necessary to open the quick-release fixing sleeve 5 to take out the melting tube bin 12 upward, thereby disconnecting the iron core 13. In addition, the back of the fixed shell plate 1 is blocked by a compression locking mechanism and a pull-out plug 6, and the inside of the pull-out plug 6 corresponds to the connection position between other components and the iron core 13. That is to say, it is only necessary to open the quick-release fixing sleeve 5 and the compression locking mechanism to quickly disconnect the iron core 13; then the side cover plate 2 can be opened, so that the side cover plate 2 is placed horizontally, and supported by the round pad 18, so that the side cover plate 2 is kept flush with the inside of the fixed shell plate 1, and then the pressing wrench 17 is pressed downward, pressing downward from the middle part of the linkage push rod 4, so that the two ends of the linkage push rod 4 are pushed to both sides, and one end is blocked by the support seat 11, so that the other end pushes the entire frame 3 to move through the shaft sleeve 10, and the bottom of the frame 3 is fixedly connected with a slide seat 8, and the inner side of the bottom of the fixed shell plate 1 is provided with a slide groove 7, so that the frame 3 slides outward along the slide groove 7.

[0030] In summary, the device for quickly finding faults in voltage transformers, the device for quickly finding faults in voltage transformers, through the coordinated arrangement of the quick-release fixing sleeve 5, the pull-out plug 6 and the compression lock 20, enables the internal iron core of the voltage transformer to be quickly separated from other components such as the melting tube bin 12, thereby providing feasibility for the rapid withdrawal of the iron core 13; through the coordinated arrangement of the frame 3 and the linkage push rod 4, the slide seat 8 at the bottom of the frame 3 is slidably connected to the inside of the slide groove 7 at the bottom of the fixed shell plate 1, and under the push of the linkage push rod 4, the frame 3 together with the internal iron core 13 can be separated from the clamping of the fixed shell plate 1 and slide out along the slide groove 7, thereby realizing the iron core assembly The quick pulling out of the parts ensures that the voltage transformer can be quickly checked when it fails, and avoids human touch, which has good safety. Through the setting of the side cover 2, the bottom of the side cover 2 is hinged to the bottom of the fixed shell plate 1, and is clamped to the top of the fixed shell plate 1 through the buckle 19, and can be flipped backward along the hinge. After the flip, the upper end of the entire side cover 2 is flush with the bottom of the fixed shell plate 1, so that the slide groove 7 on the inner side of the side cover 2 is docked with the slide groove 7 at the bottom of the fixed shell plate 1, and the frame 3 is smoothly pushed out. The device can complete the rapid troubleshooting of the voltage transformer fault and can ensure the safety of the maintenance personnel.

[0031] 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. In the absence of further restrictions, the elements defined by the statement "comprise one" do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0032] 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 device for quickly finding faults in a voltage transformer, comprising a fixed shell plate (1), a side cover plate (2), a frame (3), a linkage push rod (4), a quick-release fixing sleeve (5) and a pull-out plug (6), characterized in that: The bottom of the side cover plate (2) is hinged to one side of the fixed shell plate (1); the bottom of the fixed shell plate (1) and the inner side of the side cover plate (2) are both provided with a slide groove (7); the bottom plate of the frame (3) is fixedly connected to a slide seat (8); the bottom of the slide seat (8) is slidably connected to the inside of the slide groove (7); the outer side of the frame (3) is fixedly connected to a support frame (301); the outer side of the support frame (301) is fixedly connected to a rotating shaft (9); the linkage push rod (4 ) is fixedly connected to a shaft sleeve (10), the other end of the linkage push rod (4) is rotatably connected to a support seat (11), the shaft sleeve (10) is rotatably connected to the outside of the rotating shaft (9), the quick-release fixing sleeve (5) is arranged on the top of the fixed shell plate (1), a melting tube bin (12) is installed inside the quick-release fixing sleeve (5), one end of the pull-out plug (6) is inserted into the inside of the fixed shell plate (1), and an iron core (13) is clamped inside the frame (3); The linkage push rod (4) is divided into two sections, front and rear, and a rotating seat (16) is rotatably connected between the two sections of the linkage push rod (4), and a pressing wrench (17) is fixedly connected to the outer side of the rotating seat (16); One end of the pressing wrench (17) is inserted into the interior of the smooth bore (15) and can move up and down along the interior of the smooth bore (15); The support seat (11) is fixedly connected to two sides of the back of the fixed shell plate (1), and a heat dissipation groove (21) is provided on the back of the fixed shell plate (1).

2. A device for quickly finding voltage transformer faults according to claim 1, characterized in that: The bottom of the fixed shell plate (1) is fixedly connected to a support base (14), and both left and right side surfaces of the fixed shell plate (1) are provided with smooth bores (15).

3. The device for quickly finding voltage transformer faults according to claim 1, characterized in that: A round pad (18) is fixedly connected to the outer side of the side cover plate (2), and a buckle (19) is fixedly connected to the top of the side cover plate (2), and the buckle (19) can be buckled to the upper end of the fixed shell plate (1).

4. The device for quickly finding voltage transformer faults according to claim 1, characterized in that: A compression lock (20) is fixedly connected to the back of the fixed shell plate (1), and a rotating rod of the compression lock (20) is fixedly connected to the outside of the pull-out plug (6).

5. The device for quickly finding voltage transformer faults according to claim 2, characterized in that: A movable seat (22) is fixedly connected to one side of the support frame (301), and the movable seat (22) is slidably connected to the interior of the slide bore (15).

6. The device for quickly finding voltage transformer faults according to claim 1, characterized in that: An air outlet (23) is provided on the top of the fixed shell plate (1), and the air outlet (23) is located directly above the iron core (13).

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