An intelligent transformer riser CT ratio polarity deflector

Abstract

The present invention relates to an intelligent transformer riser CT ratio polarity deflector, comprising: a shell, one end of which is set in an open shape; an operating component, which is movably installed on the shell; a paint removal component, which is installed on the inner side of the shell and slidably cooperates with at least three guide rods installed in the shell, and the guide rod is sleeved with a first compression spring, and the two ends of the first compression spring are connected to the shell and the paint removal component; an electromagnet base, which is fixed to the end of the guide rod facing the opening of the shell, and a plurality of electromagnets are installed on the side of the electromagnet base away from the shell; a conduction component, which is installed in the shell and connected to the electromagnet base through an elastic component, and the conduction component passes through the circular through hole; a power supply component, which connects the paint removal component and the electromagnet.

Description

Technical Field

[0001] The present invention relates to the technical field related to transformer field testing, and in particular to an intelligent transformer riser CT ratio polarity deflector. Background Art

[0002] A current transformer (CT) is an electrical device that converts large primary current into small secondary current based on the principle of electromagnetic induction. It plays an important role in the power system.

[0003] Economic development starts with electricity. In recent years, with the rapid development of the local economy, electricity consumption has increased significantly, and the number of new substation construction, expansion and overhaul and technical transformation projects has increased. The workload of on-site testing has increased, while the staffing has not changed significantly, resulting in insufficient team capacity. Therefore, it is imperative to reduce the demand for test personnel, shorten the test time and improve work efficiency. The main transformer is the core equipment of the substation, and the transformer riser CT is used for the measurement and protection of the main transformer and plays a vital role. A handover test is required a few days before the installation of the riser CT to ensure that the equipment is qualified (to avoid delays in construction due to equipment problems, and the main transformer cannot be powered on on time). The CT handover test includes insulation, DC resistance, ratio, and polarity tests, and the protection winding requires an excitation characteristic test.

[0004] The transformer riser CT is a through-type CT. After installation, the bushing will pass through both ends of the riser, and the bushing conductors serve as the primary winding of the riser. Therefore, the transformation ratio polarity test requires the instrument's primary test lead to be passed through the riser. Manufacturers typically transport riser CTs in nitrogen. Upon arrival at the site, the riser CTs are sealed with covers at both the top and bottom. The traditional test method involves opening the CT's top cover and striking the bottom cover with a crowbar to remove the paint, ensuring good contact between the crowbar and the cover. Test instruments P1 and P2 are connected to the crowbar and CT body bolts, respectively, meaning the crowbar serves as the primary winding. The traditional test method has the following disadvantages: 1. The higher the voltage level of the transformer, the higher the height of the CT riser, and it is difficult to find a suitable crowbar during the test; 2. There are safety factors in manually hitting the lower cover to conduct, and improper operation may damage the secondary winding inside the CT, and there is a risk of electric shock for the tester; 3. When using the tip of the crowbar to hit the lower cover of the CT multiple times to remove the paint, it is difficult for the human operator to hit the same point each time, so it takes a long time to achieve the conduction of the primary circuit; 4. After the crowbar hits the lower cover multiple times, it is impossible to judge in advance whether the primary circuit is conductive, and the conduction needs to be verified after the test, which easily leads to repeated tests and increased working time; 5. During the test, the tester needs to maintain a fixed posture and press the crowbar hard, which requires a lot of physical strength (two people take turns to operate). If the hand is a little soft, the test will be interrupted, and the paint removal point needs to be found and the test needs to be repeated, which increases working time. Summary of the Invention

[0005] The object of the present invention is to provide an intelligent transformer riser CT ratio polarity deflector to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] An intelligent transformer riser CT ratio polarity current guider, the intelligent transformer riser CT ratio polarity current guider comprising:

[0008] A housing, one end of which is open;

[0009] An operating assembly, movably mounted on the housing, for lifting and lowering the housing;

[0010] a paint stripping assembly mounted on the inner side of the housing and slidingly engaged with at least three guide rods mounted in the housing, wherein a first compression spring is sleeved on the guide rod, and both ends of the first compression spring are connected to the housing and the paint stripping assembly;

[0011] an electromagnet base, the electromagnet base being fixed to the end of the guide rod facing the opening of the housing, a plurality of electromagnets being mounted on a side of the electromagnet base away from the housing, and a circular through hole for the paint removal assembly to pass through being provided on the electromagnet base;

[0012] a conducting component, the conducting component being installed in the housing and connected to the electromagnet base via an elastic component, the conducting component passing through the circular through hole;

[0013] a power supply component connected to the paint removal component and the electromagnet for supplying power to the paint removal component and the electromagnet;

[0014] a remote control device, the remote control device establishing communication with the paint removal assembly and the electromagnet;

[0015] It also includes a voice broadcast component, which works to perform voice broadcast when the conduction component realizes loop conduction.

[0016] As a further solution of the present invention: the paint stripping assembly includes a motor base, the motor base is slidably engaged with the guide rod through a guide sleeve installed thereon, and one end of the first compression spring abuts against the motor base, a DC reduction motor is installed on the motor base, an output shaft of the DC reduction motor passes through the motor base and is fixedly connected to a connecting shaft fixed to a cutter head seat, and a plurality of paint stripping cutter heads are installed on the cutter head seat;

[0017] The DC reduction motor is connected to the remote control device.

[0018] As a further solution of the present invention: the conductive component includes a fixed test pole and a rotating test pole, the fixed test pole is connected to the elastic component, and a through hole for the connecting shaft to pass through is provided at the middle position of the fixed test pole, so that the fixed test pole and the connecting shaft are rotatably connected, the rotating test pole is fixed on the connecting shaft, and a plurality of contact pole copper columns are installed on the rotating test pole, and the contact pole copper columns pass through the reserved holes provided on the tool head seat and protrude from the tool head seat.

[0019] As a further solution of the present invention: the elastic component includes three test pole guide rods fixed on the motor base, the test pole guide rods pass through the fixed test pole and slide with the fixed test pole, and a second compression spring is sleeved on the test pole guide rod, and the two ends of the second compression spring are respectively in contact with the fixed test pole and the motor base.

[0020] As a further solution of the present invention: the power supply assembly includes a battery pack installed on the motor base, the battery pack is fixed by a battery clamp, and the battery pack is electrically connected to the DC reduction motor and the electromagnet.

[0021] As a further solution of the present invention: the remote control device includes a remote controller and a control module installed on a control board tray on the motor base and interacting with the remote controller, and the control module is connected to the DC reduction motor and the electromagnet.

[0022] As a further solution of the present invention: the operating assembly includes an operating rod, one end of the operating rod is hinged to the housing via an operating rod connecting shaft, and a rubber handle is installed on the end of the operating rod away from the housing.

[0023] Compared with the prior art, the beneficial effects of the present invention are: the deflector of the present invention is small in size, light in weight, and has a segmented structure, which is easy to carry, solving the problem of finding auxiliary deflection equipment at the test site; the use of the conduction voice announcer can judge the conduction of a circuit in advance, avoiding repeated tests; the electromagnet has a fixing effect, and after the circuit is conducted once, it can be maintained stably until the end of the test, avoiding test interruptions caused by soft hands during human operation; during paint removal and testing, there is no need for test personnel to operate a crowbar, saving a lot of manpower; the test time is shortened to one third of the traditional test method, greatly saving test time; paint removal and deflection realize "automatic and intelligent" control, avoiding the safety hazards of personnel and equipment in manual operation, and achieving the purpose of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1This is the structural explosion diagram of the CT ratio polarity deflector of the intelligent transformer riser.

[0025] Figure 2 This is a schematic diagram of the internal structure of the shell of the CT ratio polarity deflector of the intelligent transformer riser.

[0026] Figure 3 This is a structural diagram of the operating components in the CT ratio polarity deflector of the intelligent transformer riser.

[0027] Figure 4 This is the bottom view of the CT ratio polarity deflector of the intelligent transformer riser.

[0028] Figure 5 This is the electrical schematic diagram of the CT ratio polarity deflector for the intelligent transformer riser.

[0029] In the figure: 1-DC reduction motor, 2-guide rod, 3-control board support plate, 4-battery clamp, 5-battery pack, 6-motor base, 7-fixed test pole, 8-rotating test pole, 9-contact pole copper column, 10-cutter head seat, 11-electromagnet base, 12-electromagnet, 13-paint remover head, 14-second compression spring, 15-test pole guide rod, 16-guide sleeve, 17-first compression spring, 18-housing, 19-operating rod connecting shaft, 20-butterfly nut, 21-operating rod, 22-rubber handle cover. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0031] In addition, when an element in the present invention is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0032] See also Figures 1 to 5 In an embodiment of the present invention, an intelligent transformer riser CT ratio polarity current deflector is provided, and the intelligent transformer riser CT ratio polarity current deflector comprises:

[0033] A housing 18, one end of which is open;

[0034] An operating assembly, movably mounted on the housing 18 and used for lifting and lowering the housing 18;

[0035] A paint stripping assembly is mounted on the inner side of the housing 18 and is slidably engaged with at least three guide rods 2 mounted in the housing 18. A first compression spring 17 is sleeved on the guide rod 2. Both ends of the first compression spring 17 are connected to the housing 18 and the paint stripping assembly.

[0036] An electromagnet base 11 is fixed to the end of the guide rod 2 facing the opening of the housing 18. A plurality of electromagnets 12 are mounted on the side of the electromagnet base 11 away from the housing 18. A circular through hole for the paint removal assembly to pass through is provided on the electromagnet base 11.

[0037] A conducting component, the conducting component is installed in the housing 18 and connected to the electromagnet base 11 through an elastic component, and the conducting component passes through the circular through hole;

[0038] a power supply component connected to the paint removal component and the electromagnet 12 for supplying power to the paint removal component and the electromagnet 12;

[0039] a remote control device, the remote control device establishing communication with the paint removal assembly and the electromagnet 12;

[0040] It also includes a voice broadcast component, which works to perform voice broadcast when the conduction component realizes loop conduction.

[0041] In an embodiment of the present invention, the deflector is placed on the lower cover of the CT through an operating component, and the electromagnet 12 is energized through a remote control device to fix the deflector on the lower cover of the CT. The paint removal component is controlled by the remote control device to move to remove the paint on the lower cover of the CT, so that the measurement contact surface on the lower cover of the CT is exposed, so that the conductive component contacts the measurement contact surface and the circuit is conductive. The high degree of automation does not require manual pressing operation, which saves a lot of manpower and effectively saves test time. At the same time, it avoids the safety hazards of personnel and equipment caused by manual operation, and has strong practicality.

[0042] In embodiments of the present invention, the deflector provided herein is compact, lightweight, and employs a segmented structure for portability. The deflector also enables fully automatic paint removal, intelligent voice notification for continuity, stable paint removal, and early detection of primary circuit continuity, eliminating repeated testing and reducing test time. This eliminates the need for manual operation of a crowbar, which repeatedly strikes the CT lower cover, as is required in traditional testing methods, eliminating safety hazards for both personnel and equipment.

[0043] In the embodiment of the present invention, it should be noted that the voice broadcast component includes a speaker, and the speaker is connected in series with the conductive component and the power supply component.

[0044] As another embodiment of the present invention, the paint removal assembly includes a motor base 6, the motor base 6 is slidably matched with the guide rod 2 through a guide sleeve 16 installed thereon, and one end of the first compression spring 17 abuts against the motor base 6, a DC reduction motor 1 is installed on the motor base 6, the output shaft of the DC reduction motor 1 passes through the motor base 6 and is fixedly connected to a connecting shaft fixed on a cutter head seat 10, and a plurality of paint removal cutter heads 13 are installed on the cutter head seat 10;

[0045] The DC reduction motor 1 is connected to the remote control device.

[0046] In an embodiment of the present invention, the remote control device controls the DC reduction motor 1 to drive the cutter head holder 10 to rotate, and the cutter head holder 10 drives the paint removal cutter head 13 to rotate, thereby grinding the CT lower cover to remove the paint on the CT lower cover. The automated operation effectively improves work efficiency.

[0047] As another embodiment of the present invention, the conductive component includes a fixed test pole 7 and a rotating test pole 8, the fixed test pole 7 is connected to the elastic component, and a through hole for the connecting shaft to pass through is provided at the middle position of the fixed test pole 7, so that the fixed test pole 7 is rotatably connected to the connecting shaft, the rotating test pole 8 is fixed on the connecting shaft, and a plurality of contact pole copper pillars 9 are installed on the rotating test pole 8, the contact pole copper pillars 9 pass through the reserved holes provided on the tool head seat 10, and protrude from the tool head seat 10.

[0048] In an embodiment of the present invention, the elastic component provided can effectively abut the fixed test pole 7 against the rotating test pole 8, so that the fixed test pole 7 and the rotating test pole 8 maintain contact. When the contact pole copper column 9 provided contacts the measurement contact surface on the CT lower cover, the circuit is conductive.

[0049] As another embodiment of the present invention, the elastic component includes three test pole guide rods 15 fixed on the motor base 6, the test pole guide rods 15 pass through the fixed test pole 7 and slide with the fixed test pole 7, and a second compression spring 14 is sleeved on the test pole guide rod 15, and the two ends of the second compression spring 14 are respectively in contact with the fixed test pole 7 and the motor base 6.

[0050] In the embodiment of the present invention, the second compression spring 14 is provided to generate a thrust on the fixed test pole 7 to ensure that the fixed test pole 7 and the rotating test pole 8 maintain a contact state.

[0051] As another embodiment of the present invention, the power supply assembly includes a battery pack 5 installed on the motor base 6, the battery pack 5 is fixed by a battery clamp 4, and the battery pack 5 is electrically connected to the DC reduction motor 1 and the electromagnet 12.

[0052] In the embodiment of the present invention, the battery pack 5 is effectively fixed by the battery clamp 4, and the battery pack 5 is provided to supply power to the DC reduction motor 1 and the electromagnet 12. It should be noted that the battery pack 5 can be a storage battery for reuse.

[0053] As another embodiment of the present invention, the remote control device includes a remote control and a control module installed on the control board tray 3 on the motor base 6 and interacting with the remote control, and the control module is connected to the DC reduction motor 1 and the electromagnet 12.

[0054] In the embodiment of the present invention, it should be noted that an execution signal is sent through a remote control, and the execution signal is received by a control module. The control module sends an execution instruction to the DC reduction motor 1 or the electromagnet 12 according to the execution number to realize remote control. Of course, the control module is a commonly used control chip, and this application will not go into details about it.

[0055] As another embodiment of the present invention, the operating assembly includes an operating rod 21 , one end of the operating rod 21 is hinged to the housing 18 via an operating rod connecting shaft 19 , and a rubber handle 22 is installed at the end of the operating rod 21 away from the housing 18 .

[0056] In the embodiment of the present invention, it should be noted that the operating rod connecting shaft 19 is fixed to the housing 18 through a butterfly nut 20, and the operating rod 21 is rotatably connected to the connecting shaft 19. Preferably, the operating rod 21 can be set to a telescopic structure to facilitate length adjustment according to different needs.

[0057] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0058] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. An intelligent transformer riser CT ratio polarity deflector, characterized in that: The intelligent transformer riser CT ratio polarity deflector includes: A housing (18), wherein one end of the housing (18) is open; An operating assembly is movably mounted on the housing (18) and is used to lift and lower the housing (18). The operating assembly comprises an operating rod (21). One end of the operating rod (21) is hinged to the housing (18) via an operating rod connecting shaft (19). A rubber handle (22) is mounted on the end of the operating rod (21) away from the housing (18); A paint removal assembly, wherein the paint removal assembly is mounted on the inner side of the housing (18) and is slidably matched with at least three guide rods (2) mounted in the housing (18); a first compression spring (17) is sleeved on the guide rod (2); both ends of the first compression spring (17) are connected to the housing (18) and the paint removal assembly; the paint removal assembly comprises a motor base (6); the motor base (6) is slidably matched with the guide rod (2) through a guide sleeve (16) mounted thereon, and one end of the first compression spring (17) abuts against the motor base (6); a DC reduction motor (1) is mounted on the motor base (6); an output shaft of the DC reduction motor (1) passes through the motor base (6) and is fixedly connected to a connecting shaft fixed on a cutter head seat (10); a plurality of paint removal cutter heads (13) are mounted on the cutter head seat (10); An electromagnet base (11), the electromagnet base (11) being fixed to the end of the guide rod (2) facing the opening of the housing (18), a plurality of electromagnets (12) being mounted on a side of the electromagnet base (11) away from the housing (18), and a circular through hole for the paint removal assembly to pass through being provided on the electromagnet base (11); A conduction component, the conduction component is installed in the housing (18) and is connected to the electromagnet base (11) through an elastic component, the conduction component passes through the circular through hole, the conduction component includes a fixed test pole (7) and a rotating test pole (8), the fixed test pole (7) is connected to the elastic component, and a through hole for the connecting shaft to pass through is provided at the middle position of the fixed test pole (7), so that the fixed test pole (7) and the connecting shaft are rotatably connected, the rotating test pole (8) is fixed on the connecting shaft, and a plurality of contact pole copper pillars (9) are installed on the rotating test pole (8), and the contact pole copper pillars (9) pass through the reserved holes provided on the tool head seat (10) and protrude from the tool head seat (10); a power supply component connected to the paint removal component and the electromagnet (12) for supplying power to the paint removal component and the electromagnet (12); A remote control device, wherein the remote control device establishes communication with the paint removal assembly and the electromagnet (12), and the DC reduction motor (1) is connected to the remote control device; It also includes a voice broadcast component, which works to perform voice broadcast when the conduction component realizes loop conduction.

2. The intelligent transformer riser CT ratio polarity deflector according to claim 1 is characterized in that: The elastic component comprises three test pole guide rods (15) fixed on the motor base (6), the test pole guide rods (15) pass through the fixed test pole (7) and are slidably matched with the fixed test pole (7), and a second compression spring (14) is sleeved on the test pole guide rod (15), and two ends of the second compression spring (14) are respectively in contact with the fixed test pole (7) and the motor base (6).

3. The intelligent transformer riser CT ratio polarity deflector according to claim 1 is characterized in that: The power supply assembly includes a battery pack (5) mounted on the motor base (6), the battery pack (5) being fixed by a battery clamp (4), and the battery pack (5) being electrically connected to the DC reduction motor (1) and the electromagnet (12).

4. The intelligent transformer riser CT ratio polarity deflector according to claim 1 is characterized in that: The remote control device comprises a remote controller and a control module mounted on a control panel support plate (3) on the motor base (6) and performing information exchange with the remote controller, wherein the control module is connected to the DC reduction motor (1) and the electromagnet (12).

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