High-voltage conversion transformer for 110KV transformer substation

Abstract

The utility model provides a 110KV transformer station high voltage transformation transformer, which comprises a casing and a track, the inner side of the casing is fixedly connected with the track, the outer end of the track is fixedly connected with a fixed plate, and the outer side of the fixed plate is fixedly connected with a servo motor. The transfer mechanism for the transformer has the advantages that the transfer mechanism for the transformer is designed, the transformer is installed on the movable platform, the platform achieves bidirectional linear movement through the sliding block, the guide block, the lead screw, the track and the servo motor, and particularly, when the lead screw rotates forwards, the guide block and the platform are driven to move towards the outer side of the machine shell along the track; the transformer is convenient to maintain and check, the transformer can be retracted into the machine shell for isolation work during work, passers-by is prevented from being accidentally injured, the sealing door can be opened only when technicians actively operate the transformer, the transformer is safer, the sealing door is in a closed state in the normal operation process of the transformer, the passers-by and the environment are not affected, and the transformer is convenient to maintain and check. The housing is isolated in the housing.

Description

Technical Field

[0001] The utility model relates to the technical field of transformers, in particular to a 110KV transformer substation high-voltage transfer transformer. Background Art

[0002] Transformers are devices that use the principle of electromagnetic induction to change AC voltage. The main components are primary coils, secondary coils and iron cores. The main functions are: voltage conversion, current conversion, impedance conversion, isolation, and voltage stabilization. Transformers are basic equipment for power transmission and distribution, and are widely used in industries, agriculture, transportation, urban communities, etc. There are about 17 million transformers in operation in my country, with a total capacity of about 11 billion kilovolt-amperes. Transformer losses account for about 40% of power transmission and distribution losses, and have great energy-saving potential.

[0003] For example, the Chinese utility model patent (CN 110136924 B) discloses a transformer, which relates to the technical field of transformers and aims to solve the problem that the nameplate cannot be adjusted at will. The key points of the technical solution are: a transformer, including a transformer body, a plurality of corrugated sheets longitudinally arranged on the outside of the transformer body, and a mounting plate for mounting the nameplate, the mounting plate is detachably connected with a connecting accessory toward the transformer body, the connecting accessory includes a connecting column with a slot, and a self-locking mechanism matched with the corrugated sheet is arranged in the slot. The transformer of the present invention is convenient for changing the installation position of the nameplate at any time.

[0004] However, in the prior art, the 110kV substation high-voltage transfer transformer is placed away from people when in use, but some transformers are not convenient for maintenance and observation, and fences are used to isolate the surrounding areas.

[0005] Therefore, a new 110KV substation high-voltage transfer transformer is proposed, which is easier to maintain and repair while ensuring safety. Utility Model Content

[0006] The purpose of the present invention is to solve at least one of the above technical deficiencies.

[0007] Therefore, one purpose of the utility model is to provide a 110KV substation high voltage transfer transformer to solve the problems mentioned in the background technology and overcome the deficiencies in the prior art.

[0008] In order to achieve the above-mentioned object, an embodiment of one aspect of the utility model provides a 110KV substation high-voltage transfer transformer, comprising a casing and a track, wherein the inner side of the casing is fixedly connected to the track, the outer end of the track is fixedly connected to a fixing plate, and the outer side of the fixing plate is fixedly connected to a servo motor;

[0009] The output end of the servo motor is fixedly connected with a screw rod, and the end of the screw rod is movably connected to the housing;

[0010] The top of the track is movably connected with a slider, the top of the slider is fixedly connected with a platform, the middle of the bottom of the platform is fixedly connected with a guide block, and the lead screw is threadedly connected with the guide block;

[0011] A transformer is installed on the top of the platform, and a hook is fixedly connected to the front of the platform, and the hook is bent;

[0012] The front of the casing is movably connected with a sealing door, and the sealing door can only rotate toward the outside of the casing, and the hook hooks the bottom end of the sealing door at the outside.

[0013] Preferably, in any of the above schemes, two rails are arranged in parallel, and the rails are located on both sides of the screw rod.

[0014] The above technical solution is adopted: the transformer in this device is specially used for 110KV substation, in which the iron core is shell type, and the winding is wound with double-wire insulated flat wire or enameled round wire; the oil tank is the outer shell of the oil-immersed transformer, which contains the iron core and winding and is filled with transformer oil to play a heat dissipation and insulation role; the cooling device is mainly a fan.

[0015] Preferably, any of the above solutions is that the servo motor is installed transversely and is self-locking.

[0016] Preferably, any of the above schemes is that the slider is made of stainless steel, and the transformer is composed of an iron core, a winding, an oil tank, a cooling device, an insulating sleeve, a voltage regulating device and a protective device.

[0017] Preferably, any of the above schemes has a bending angle of ninety degrees, and the top of the sealing door is movably connected to the top of the inner side of the casing.

[0018] The above technical solution is adopted: the core structure of this device is: track, fixed plate, servo motor, screw, slider, platform, guide block, transformer, hook, and sealing door. The core advantages of this device are: designing a transformer transfer mechanism, installing the transformer on a movable platform, and the platform realizes bidirectional linear movement through sliders, guide blocks, screws, tracks and servo motors. Specifically, when the screw rotates forward, it drives the guide block and platform to move along the track toward the outside of the casing, which is convenient for maintenance and inspection of the transformer. When working, it can be retracted into the casing for isolation work to prevent accidental injury to passers-by;

[0019] When the transformer is working normally inside the casing, the hook is hooked on the sealing door. At this time, the sealing door cannot be flipped outward and opened. Only when the technician starts the servo motor to rotate the screw rod and move the platform outward, the hook can cancel the limit on the sealing door. At this time, the sealing door can be opened. That is, the sealing door can only be opened when the technician actively operates it, which is safer. During the normal operation of the transformer, the sealing door is closed, which will not affect passers-by or the environment and is isolated in the casing.

[0020] Preferably, in any of the above schemes, a handle is fixedly connected to the front side of the sealing door.

[0021] Compared with the prior art, the advantages and beneficial effects of the utility model are:

[0022] The 110KV substation high-voltage transformer is designed with a transformer transfer mechanism through the coordinated arrangement of tracks, fixed plates, servo motors, screw rods, sliders, platforms, guide blocks, transformers, hooks, and sealing doors. The transformer is installed on a movable platform. The platform realizes bidirectional linear movement through sliders, guide blocks, screw rods, tracks, and servo motors. Specifically, when the screw rod rotates forward, it drives the guide blocks and the platform to move toward the outside of the casing along the track, which is convenient for maintenance and inspection of the transformer. When working, it can be retracted into the casing for isolation work to prevent accidental injury to passers-by.

[0023] When the transformer is working normally inside the casing, the hook is hooked on the sealing door. At this time, the sealing door cannot be flipped outward and opened. Only when the technician starts the servo motor to rotate the screw rod and move the platform outward, the hook can cancel the limit on the sealing door. At this time, the sealing door can be opened. That is, the sealing door can only be opened when the technician actively operates it, which is safer. During the normal operation of the transformer, the sealing door is closed, which will not affect passers-by or the environment and is isolated in the casing.

[0024] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0026] Figure 1 It is a schematic diagram of the structure of the utility model;

[0027] Figure 2 It is a schematic diagram of the structure of the first perspective of the interior of the utility model;

[0028] Figure 3 It is a schematic diagram of the structure of the second internal viewing angle of the utility model;

[0029] Figure 4 It is a structural schematic diagram of the transformer of the utility model.

[0030] In the figure: 1-housing, 2-track, 3-fixed plate, 4-servo motor, 5-screw, 6-slider, 7-platform, 8-guide block, 9-transformer, 10-hook, 11-sealing door. DETAILED DESCRIPTION

[0031] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0032] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] like Figure 1-4 As shown, the 110KV substation high-voltage transfer transformer comprises a casing 1 and a track 2. The inner side of the casing 1 is fixedly connected to the track 2, the outer end of the track 2 is fixedly connected to a fixing plate 3, and the outer side of the fixing plate 3 is fixedly connected to a servo motor 4;

[0034] The output end of the servo motor 4 is fixedly connected with a screw rod 5, and the end of the screw rod 5 is movably connected to the housing 1;

[0035] A slider 6 is movably connected to the top of the track 2, a platform 7 is fixedly connected to the top of the slider 6, a guide block 8 is fixedly connected to the middle of the bottom of the platform 7, and the screw rod 5 is threadedly connected to the guide block 8;

[0036] A transformer 9 is installed on the top of the platform 7, and a hook 10 is fixedly connected to the front of the platform 7, and the hook 10 is bent;

[0037] A sealing door 11 is movably connected to the front of the casing 1 . The sealing door 11 can only rotate toward the outside of the casing 1 , and the hook 10 hooks the bottom end of the sealing door 11 at the outside.

[0038] Embodiment 1: Two rails 2 are arranged in parallel, and the rails 2 are located on both sides of the screw rod 5. The transformer in this device is specially used for 110KV substation, wherein the iron core is shell type, and the winding is wound with double-wire insulated flat wire or enameled round wire; the oil tank is the outer shell of the oil-immersed transformer, which contains the iron core and winding and is filled with transformer oil for heat dissipation and insulation; the cooling device is mainly a fan.

[0039] Embodiment 2: The servo motor 4 is installed horizontally, and the servo motor 4 can be self-locking. The material of the slider 6 is stainless steel, and the transformer 9 is composed of an iron core, a winding, an oil tank, a cooling device, an insulating sleeve, a voltage regulating device and a protective device. The bending angle of the hook 10 is ninety degrees, and the top of the sealing door 11 is movably connected to the top of the inner side of the casing 1. A handle is fixedly connected to the front of the sealing door 11. When the transformer 9 is working normally inside the casing 1, the hook 10 is hooked on the sealing door 11. At this time, the sealing door 11 cannot be turned outward and opened. Only when the technician starts the servo motor 4, the screw rod 5 rotates, and the platform 7 moves outward, the hook 10 can cancel the limit on the sealing door 11, and then the sealing door 11 can be opened, that is, the sealing door 11 can only be opened when the technician actively operates it, which is safer. During the normal operation of the transformer 9, the sealing door 11 is in a closed state, which will not affect passers-by or the environment, and will be isolated in the casing 1.

[0040] The working principle of the utility model is as follows:

[0041] First of all, the high-voltage transformer consists of a magnetic core and two or more windings. The magnetic core, usually an iron core, is the main magnetic circuit part of the transformer, which is used to enhance magnetic induction and reduce energy loss in the iron core. The winding is the circuit part of the transformer, which is used to transmit electrical energy.

[0042] When an AC voltage is applied to the primary winding (primary winding) of a high-voltage transformer, this voltage will generate an alternating current in the primary winding. This alternating current generates an alternating magnetic flux in the magnetic core. Since the primary winding and the secondary winding (secondary winding) are both wound on the same magnetic core, the alternating magnetic flux will pass through the primary winding and the secondary winding at the same time. According to Faraday's law of electromagnetic induction, when the magnetic flux changes, an induced electromotive force (i.e., a variable voltage) will be generated in the secondary winding. The magnitude of the induced electromotive force is proportional to the number of turns of the coil, the magnitude of the magnetic flux, and the frequency of the power supply.

[0043] By changing the number of turns of the primary winding and the number of turns of the secondary winding, the voltage can be increased or decreased. In a step-down transformer, the number of turns of the primary winding is greater than the number of turns of the secondary winding to achieve the goal of reducing the high voltage to a low voltage.

[0044] In addition, high-voltage transformers also have an isolation function, which can isolate the input circuit from the output circuit to ensure the safety and stability of the circuit. At the same time, by increasing the voltage level, high-voltage transformers can reduce the current of the transmission line, thereby reducing line loss and power loss.

[0045] Compared with the prior art, the present invention has the following beneficial effects:

[0046] The 110KV substation high-voltage transformer is designed with a transfer mechanism of the transformer 9 through the coordinated arrangement of the track 2, the fixed plate 3, the servo motor 4, the screw 5, the slider 6, the platform 7, the guide block 8, the transformer 9, the hook 10, and the sealing door 11. The transformer 9 is installed on the movable platform 7. The platform 7 realizes bidirectional linear movement through the slider 6, the guide block 8, the screw 5, the track 2 and the servo motor 4. Specifically, when the screw 5 rotates forward, it drives the guide block 8 and the platform 7 to move toward the outer side of the casing 1 along the track 2, which is convenient for maintenance and inspection of the transformer 9. When working, it can be retracted into the casing 1 for isolation work to prevent accidental injury to passers-by.

[0047] When the transformer 9 is working normally inside the casing 1, the hook 10 is hooked on the sealing door 11. At this time, the sealing door 11 cannot be flipped outward to open. Only when the technician starts the servo motor 4 to rotate the screw rod 5 and move the platform 7 outward, the hook 10 can cancel the limit on the sealing door 11. Only then can the sealing door 11 be opened, that is, the sealing door 11 can be opened only when the technician actively operates it, which is safer. During the normal operation of the transformer 9, the sealing door 11 is in a closed state, which will not affect passers-by or the environment, and will be isolated in the casing 1.

Claims

1. A 110KV substation high voltage transfer transformer, characterized in that: It comprises a casing (1) and a track (2), wherein the inner side of the casing (1) is fixedly connected to the track (2), the outer end of the track (2) is fixedly connected to a fixing plate (3), and the outer side of the fixing plate (3) is fixedly connected to a servo motor (4); The output end of the servo motor (4) is fixedly connected to a screw rod (5), and the end of the screw rod (5) is movably connected to the housing (1); The top of the track (2) is movably connected to a slider (6), the top of the slider (6) is fixedly connected to a platform (7), the middle of the bottom surface of the platform (7) is fixedly connected to a guide block (8), and the screw rod (5) is threadedly connected to the guide block (8); A transformer (9) is installed on the top of the platform (7), and a hook (10) is fixedly connected to the front of the platform (7), wherein the hook (10) is in a bent shape; The front of the casing (1) is movably connected to a sealing door (11), and the sealing door (11) can only rotate toward the outside of the casing (1), and the hook (10) hooks the bottom end of the sealing door (11) at the outside.

2. A 110KV substation high voltage transfer transformer as claimed in claim 1, characterized in that: Two rails (2) are arranged in parallel, and the rails (2) are located on both sides of the screw rod (5).

3. A 110KV substation high voltage transfer transformer as claimed in claim 2, characterized in that: The servo motor (4) is installed transversely, and the servo motor (4) can be self-locking.

4. A 110KV substation high voltage transfer transformer as claimed in claim 3, characterized in that: The material of the slider (6) is stainless steel, and the transformer (9) is composed of an iron core, a winding, an oil tank, a cooling device, an insulating sleeve, a voltage regulating device and a protective device.

5. A 110KV substation high voltage transfer transformer as claimed in claim 4, characterized in that: The bending angle of the hook (10) is ninety degrees, and the top end of the sealing door (11) is movably connected to the top end of the inner side of the casing (1).

6. A 110KV substation high voltage transfer transformer as claimed in claim 5, characterized in that: A handle is fixedly connected to the front of the sealing door (11).

Images