Trigger gap with 550 kv ac energizing transformer

Abstract

This utility model relates to a 550kV AC power supply transformer for trigger gaps, comprising a housing, within which a high-voltage coil and post insulators are installed. The high-voltage coil is vertically arranged within the housing, and auxiliary support post insulators are respectively arranged on both sides of the lower part of the high-voltage coil. A secondary inlet box is arranged on the outer side of the housing, and an input winding connected to a terminal block is arranged in the secondary inlet box. A bushing is arranged at the upper end of the housing, and a primary outlet box is installed at the top of the bushing. An output winding is arranged in the primary outlet box. A conductive tube is vertically arranged inside the bushing, with its top end connected to the output winding and its bottom end extending into the housing and cooperating with the high-voltage coil. The functional transformer of this utility model utilizes the principle of electromagnetic induction to achieve electrical isolation between high and low voltage circuits, inducing a low-potential voltage to a high-voltage platform, and providing power to the high-voltage side trigger and measurement unit on the high-voltage platform.

Description

Technical Field

[0001] This utility model relates to the field of grounding trigger gaps, and in particular to a 550kV AC power supply transformer for trigger gaps. Background Technology

[0002] A triggered vacuum gap is a device in the field of electrical engineering, mainly used for quickly isolating high-voltage circuits or conducting large currents. It features a wide operating voltage range and fast conduction speed.

[0003] The trigger gap consists of a vacuum-sealed shell, an anode, a cathode, and a trigger electrode. The vacuum gap between the anode and cathode is the main gap, while the gap between the trigger electrode and the cathode, filled with a dielectric material, is the trigger gap. When a pulse is applied to the trigger electrode, the trigger gap generates metal vapor plasma, which is rapidly injected into the main gap to form a glow discharge, achieving high-voltage isolation or high-current conduction.

[0004] Trigger gaps are commonly used in high-voltage pulse devices, fast high-current switches, and nuclear fusion experimental devices, possessing characteristics such as high-voltage isolation, rapid conduction, and radiation resistance. For example, in ultra-high-voltage direct current (UHVDC) projects, this technology is used in controllable self-recovering energy dissipation devices to meet the requirements of rapid control and high reliability.

[0005] Currently, existing trigger gaps mainly rely on electric arcs to achieve current flow. The generation of electric arcs inevitably burns the electrodes, which is even more serious under high voltage and high current. Utility Model Content

[0006] The technical problem to be solved by this utility model is to provide a 550kV AC power supply transformer for trigger gap that can stably achieve electrical isolation of high / low voltage circuits.

[0007] To solve the above-mentioned technical problems, the technical solution of this utility model is: a 550kV AC power supply transformer for trigger gaps, the innovation of which lies in: including

[0008] A housing contains a high-voltage coil and post insulators. The high-voltage coil is vertically mounted inside the housing and contains an iron core. The high-voltage coil is mounted inside the housing via a terminal block. A secondary support post insulator is provided on both sides of the lower part of the high-voltage coil, and the two post insulators are arranged in a figure-eight shape. A secondary inlet box is provided on the outside of the housing, and an input winding connected to the terminal block is provided in the secondary inlet box.

[0009] A sleeve is installed at the upper end of the housing. A primary output box is installed at the top of the sleeve. An output winding is also installed inside the primary output box. A conductive tube is also vertically installed inside the sleeve. The top end of the conductive tube is connected to the output winding, and the bottom end of the conductive tube extends into the housing and cooperates with the high-voltage coil.

[0010] Furthermore, the housing includes a cylindrical housing body with openings on both the upper and lower sides. The upper and lower sides of the housing body are sealed and fixed by the cooperation of an upper cover plate and a lower base plate, respectively. The upper cover plate and the lower base plate are fixed to the housing body by screws. A ring-shaped mounting seat is also provided on the upper and lower sides of the housing body.

[0011] Furthermore, a density gauge for detecting the pressure inside the housing is also provided on the outside of the housing.

[0012] Furthermore, the housing also has a pressure relief port, and a pressure relief assembly is provided at the pressure relief port. The pressure relief assembly includes an explosion-proof base provided at the pressure relief port. The explosion-proof base has an explosion-proof opening that communicates with the pressure relief port, and an explosion-proof plate is installed inside the explosion-proof opening.

[0013] Furthermore, a pair of supporting base frames are provided at the bottom of the shell, and a transport support seat and lifting rods are provided on the outer side wall of the shell. There are several lifting rods, which are evenly distributed on the outer circumference of the shell.

[0014] The advantages of this utility model are as follows: The functional transformer in this utility model uses the principle of electromagnetic induction to achieve electrical insulation isolation between the low voltage 220V and the high voltage 220V, and induces the low potential voltage to the high voltage platform to provide power supply for the high voltage side trigger and measurement unit on the high voltage platform.

[0015] The post insulators installed on both sides of the high-voltage coil serve as auxiliary supports for the high-voltage coil, ensuring its stable operation and transmission, while also providing insulation.

[0016] The design of the pressure relief port and pressure relief components, in conjunction with the explosion-proof plate, enables product pressure relief under extreme conditions, preventing damage to the casing. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a 550kV AC power supply transformer used for the trigger gap of this utility model.

[0018] Figure 2 This is a side view of the 550kV AC power supply transformer used for the trigger gap of this utility model.

[0019] Figure 3This is a schematic diagram of the internal structure of the 550kV AC power transformer used for the trigger gap of this utility model.

[0020] Figure 4 This is an internal schematic diagram of the 550kV AC power transformer used for the trigger gap of this utility model from another angle. Detailed Implementation

[0021] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0022] like Figures 1-4 The diagram shows a 550kV AC power supply transformer for trigger gaps, including...

[0023] A housing includes a cylindrical housing body 12, with openings on both the upper and lower sides. The upper and lower sides of the housing body 12 are sealed and fixed by the cooperation of an upper cover plate 13 and a lower base plate 14, respectively. The upper cover plate 12 and the lower base plate 13 are fixed to the housing body 12 by screws. A ring-shaped mounting seat 3 is also provided on the upper and lower sides of the housing body 12. The housing body 12 and the mounting seat 3 are integrally formed. The upper cover plate 12 and the lower base plate 13 are provided with through holes for screws to pass through, and the mounting seat 3 is provided with threaded blind holes for screws to be threaded together.

[0024] A density gauge 10 is also provided on the outside of the housing body 11 to detect the pressure inside the housing body 11. The density gauge 10 is used to detect the internal pressure of the housing and output a signal so that it can be used in conjunction with the controller to make it easy for personnel to know the internal pressure of the housing.

[0025] A pressure relief port is also provided on the outer wall of the main body 11. A pressure relief assembly is also provided at the pressure relief port. The pressure relief assembly includes an explosion-proof seat 9 located at the pressure relief port. The explosion-proof seat 9 has an explosion-proof opening that communicates with the pressure relief port, and an explosion-proof disc is installed inside the explosion-proof opening. The design of the pressure relief port and the pressure relief assembly, through the cooperation of the explosion-proof disc, enables the product pressure relief under extreme conditions, preventing damage to the housing.

[0026] A pair of support frames 8 are provided at the bottom end of the lower base plate 13 of the shell. The support frames 8 facilitate the overall support of the shell. A transport support seat 11 and a lifting rod 4 are provided on the outer side wall of the shell body 11. There are several lifting rods 4, which are evenly distributed on the outer circumference of the shell body 11. The transport support seat 11 is designed to provide auxiliary support when the shell is transported, so as to prevent the shell from tipping over. The lifting rod 4 is designed to facilitate the hoisting and moving of the entire shell.

[0027] A high-voltage coil 14 and post insulators 15 are installed inside the housing. The high-voltage coil 14 is vertically arranged inside the housing body 11, and an iron core is installed inside the high-voltage coil 14. The high-voltage coil 14 is mounted on the lower base plate 13 of the housing through the cooperation of the terminal block 16. On both sides of the lower part of the high-voltage coil 14, there are two auxiliary support post insulators 15, which are arranged in a V-shape. The post insulators 15 on both sides of the high-voltage coil 14 serve to provide auxiliary support for the high-voltage coil 14, ensuring the stable operation and transmission of the high-voltage coil 14, and also serve an insulation function.

[0028] A secondary cable entry box 6 is provided on the outside of the housing body 11, and an input winding 5 connected to the terminal block 16 is provided inside the secondary cable entry box 6.

[0029] A sleeve 2 is installed at the upper end of the housing. The bottom end of the sleeve 2 is fixed to the upper cover plate 13 by several screws. The sleeve 2 is a hollow tubular structure with openings on both the top and bottom sides. A skirt is provided on the outer circumference of the sleeve 2. An upper cover 20 is connected to the top end of the sleeve 2 and is fixed to the sleeve 2 by screws. A primary output box 1 is installed at the top end of the sleeve 2 and is directly fixed to the upper cover 20. An output winding 17 is also provided in the primary output box 1. A conductive tube 18 is also vertically installed in the sleeve 2. The top end of the conductive tube 18 is connected to the output winding 17, and the bottom end of the conductive tube 18 extends into the housing body 11 and cooperates with the high voltage coil 4. A through hole is also opened on the upper cover plate 13 to allow the conductive tube 18 to pass through. An electrode 19 is also provided in the sleeve 2. The electrode 19 is located at the lower part of the sleeve 2 and is arranged around the conductive tube 18.

[0030] The functional transformer in this invention utilizes the principle of electromagnetic induction to achieve electrical insulation isolation between the low-voltage 220V and the high-voltage 220V, inducing the low-potential voltage to the high-voltage platform, and providing power to the high-voltage side trigger and measurement unit on the high-voltage platform.

[0031] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A 550kV AC power supply transformer for trigger gaps, characterized in that: include A housing contains a high-voltage coil and post insulators. The high-voltage coil is vertically mounted inside the housing and contains an iron core. The high-voltage coil is mounted inside the housing via a terminal block. A secondary support post insulator is provided on both sides of the lower part of the high-voltage coil, and the two post insulators are arranged in a figure-eight shape. A secondary inlet box is provided on the outside of the housing, and an input winding connected to the terminal block is provided in the secondary inlet box. A sleeve is installed at the upper end of the housing. A primary output box is installed at the top of the sleeve. An output winding is also installed inside the primary output box. A conductive tube is also vertically installed inside the sleeve. The top end of the conductive tube is connected to the output winding, and the bottom end of the conductive tube extends into the housing and cooperates with the high-voltage coil.

2. The 550kV AC power supply transformer for trigger gap according to claim 1, characterized in that: The housing includes a cylindrical housing body with openings on both the top and bottom sides. The top and bottom sides of the housing body are sealed and fixed by the cooperation of an upper cover plate and a lower base plate, respectively. The upper cover plate and the lower base plate are fixed to the housing body by screws. A ring-shaped mounting seat is also provided on the top and bottom sides of the housing body.

3. The 550kV AC power supply transformer for trigger gap according to claim 1, characterized in that: A density gauge for detecting the pressure inside the shell is also provided on the outside of the shell.

4. The 550kV AC power supply transformer for trigger gap according to claim 1, characterized in that: The housing also has a pressure relief port, and a pressure relief assembly is provided at the pressure relief port. The pressure relief assembly includes an explosion-proof base provided at the pressure relief port. The explosion-proof base has an explosion-proof opening that communicates with the pressure relief port, and an explosion-proof plate is installed inside the explosion-proof opening.

5. The 550kV AC power supply transformer for trigger gap according to claim 1, characterized in that: The bottom of the shell is provided with a pair of supporting base frames, and a transport support seat and lifting rods are provided on the outer side wall of the shell. There are several lifting rods, which are evenly distributed on the outer circumference of the shell.

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