Integrated variable-frequency excitation source device

Abstract

The utility model discloses an integrated variable-frequency excitation source device, which comprises an integrated variable-frequency excitation source case, a side door and an output / input unit, a base is arranged at the bottom of the integrated variable-frequency excitation source case; the side door is arranged on the side edge of the integrated variable-frequency excitation source case, and the top cover plate is arranged at the top of the integrated variable-frequency excitation source case; according to the utility model, the dry-type transformer coil with the excitation transformer is installed inside the integrated variable-frequency excitation source case and is located at the top of the base, and then the variable-frequency power supply is installed inside the integrated variable-frequency excitation source case and is located at one side of the excitation transformer. The wire harness is connected with the dry-type transformer coil, the excitation transformer and the variable-frequency power supply through the positioning wire duct A and the positioning wire duct B respectively, then the variable-frequency power supply and the excitation transformer are assembled in the integrated variable-frequency excitation source case, and the variable-frequency power supply and the excitation transformer are integrated together, so that the field preparation time is saved, and the efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of variable frequency excitation source devices, in particular to an integrated variable frequency excitation source device. Background Art

[0002] The variable frequency excitation source device is a variable frequency voltage and current signal generating device, which is mainly used to achieve real-time amplitude adjustment. The variable frequency excitation source device is also widely used in power equipment, such as the generator variable frequency resonant boost device, which can achieve the resonant state by adjusting the inductance of the reactor or the system operating frequency to perform the AC withstand voltage test of the generator.

[0003] Currently, 110kV and 220kV cable withstand voltage tests almost exclusively use a 20-300Hz variable-frequency resonant withstand voltage test system, which primarily consists of a variable-frequency power supply, an excitation transformer, a voltage divider, and a reactor. However, when testing is required on-site, these components and accessories must be transported to the site by vehicle before connection testing. This necessitates on-site assembly of these components and accessories, increasing preparation time and reducing efficiency. This is time-consuming and labor-intensive, making the process inconvenient. To address this issue, we have developed an integrated variable-frequency excitation source device. Utility Model Content

[0004] The purpose of the present utility model is to provide an integrated variable frequency excitation source device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an integrated variable frequency excitation source device, comprising: an integrated variable frequency excitation source chassis, a side door and an input / output unit;

[0006] A base is provided at the bottom of the integrated variable frequency excitation source chassis, and the base is fixed to the integrated variable frequency excitation source chassis;

[0007] The side door is arranged on the side of the integrated variable frequency excitation source chassis. The side door is the only door in the entire device that can be opened from the outside. The other door panels cannot be opened from the outside and can only be opened from the inside. A top cover is arranged on the top of the integrated variable frequency excitation source chassis.

[0008] The input and output units are arranged on the side of the integrated variable frequency excitation source chassis, and the input unit includes an input circuit breaker and input wiring terminals, and the output unit includes an output terminal to the reactor, a voltage divider sampling port, an isolated power supply output interface, and an optical fiber remote control interface;

[0009] An assembly mechanism is provided inside the integrated variable frequency excitation source chassis, and the excitation transformer and variable frequency power supply are installed inside the integrated variable frequency excitation source chassis through the assembly mechanism, so that the integrated variable frequency excitation source chassis can be assembled and transported to the site.

[0010] Preferably, the assembly mechanism includes a dry-type transformer coil connected to the bottom of the excitation transformer, the dry-type transformer coil is installed on the top of the base, the dry-type transformer coil and the base are connected by bolts, the variable frequency power supply is connected to the inside of the integrated variable frequency excitation source chassis and is located on the top of the base, the variable frequency power supply has an optical fiber remote control function, and a positioning wire groove A is provided on the surface of the base on the side of the variable frequency power supply, and a positioning wire groove B is connected to the side of the integrated variable frequency excitation source chassis, and the positioning wire groove A, the positioning wire groove B and the integrated variable frequency excitation source chassis are integrally formed.

[0011] Preferably, a heat dissipation hole is provided at the bottom of the variable frequency power supply, and the heat dissipation hole is integrally formed with the housing of the variable frequency power supply. The heat dissipation hole can discharge the heat generated by the variable frequency power supply.

[0012] Preferably, the four corners of the top of the integrated variable frequency excitation source chassis are connected with lifting rings, which are fixed to the integrated variable frequency excitation source chassis. The side of the base is connected with a pull-out lifting piece, and the integrated variable frequency excitation source chassis can be lifted by pulling out the pull-out lifting piece.

[0013] Preferably, a control box is connected to the surface of the integrated variable frequency excitation source chassis, and the control box is used to store a remote control box body and test wiring, etc.

[0014] Preferably, a power control board is connected to the side of the integrated variable frequency excitation source chassis, and the power control board is used to control the internal components of the integrated variable frequency excitation source chassis to operate.

[0015] Compared with the prior art, the beneficial effect of the present invention is as follows: the present invention installs the dry-type transformer coil with the excitation transformer inside the integrated variable frequency excitation source chassis, and is located on the top of the base, and then installs the variable frequency power supply inside the integrated variable frequency excitation source chassis, and is located on one side of the excitation transformer. By using the positioning wire trough A and the positioning wire trough B together, the wiring harness can be connected to the dry-type transformer coil, the excitation transformer and the variable frequency power supply through the positioning wire trough A and the positioning wire trough B respectively, and then the variable frequency power supply and the excitation transformer are assembled inside the integrated variable frequency excitation source chassis. By integrating the variable frequency power supply and the excitation transformer together and completing the relevant connecting lines, on-site preparation time is saved and efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a three-dimensional structural diagram of the integrated variable frequency excitation source chassis, variable frequency power supply and excitation transformer of the utility model;

[0018] Figure 3 This is a structural diagram of the integrated variable frequency excitation source chassis and base of the utility model;

[0019] Figure 4 This is a structural diagram of the base, pull-out hanging parts and integrated variable frequency excitation source chassis of the utility model.

[0020] In the figure: 1. Integrated variable frequency excitation source chassis; 2. Lifting ring; 3. Pull-out lifting parts; 4. Power control board; 5. Top cover; 6. Side door; 7. Input / output unit; 8. Positioning wire duct A; 9. Positioning wire duct B; 10. Dry-type transformer coil; 11. Variable frequency power supply; 12. Excitation transformer; 13. Control box; 14. Heat dissipation holes; 15. Base. DETAILED DESCRIPTION

[0021] 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 embodiments described 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.

[0022] See also Figure 1-4 , the utility model provides a technical solution: an integrated variable frequency excitation source device, comprising: an integrated variable frequency excitation source chassis 1, the bottom of the integrated variable frequency excitation source chassis 1 is provided with a base 15;

[0023] A side door 6 is provided on the side of the integrated variable frequency excitation source chassis 1 , and a top cover 5 is provided on the top of the integrated variable frequency excitation source chassis 1 ;

[0024] An input / output unit 7, which is arranged on the side of the integrated variable frequency excitation source chassis 1;

[0025] An assembly mechanism is provided inside the integrated variable frequency excitation source chassis 1, and the excitation transformer 12 and the variable frequency power supply 11 are installed inside the integrated variable frequency excitation source chassis 1 through the assembly mechanism, so that the integrated variable frequency excitation source chassis 1 can be assembled and transported to the site.

[0026] The assembly mechanism includes a dry-type transformer coil 10 connected to the bottom of the excitation transformer 12, and the dry-type transformer coil 10 is installed on the top of the base 15. The dry-type transformer coil 10 and the base 15 are connected by bolts. The variable frequency power supply 11 is connected to the inside of the integrated variable frequency excitation source chassis 1 and is located on the top of the base 15. The variable frequency power supply 11 has an optical fiber remote control function. The surface of the base 15 is located on the side of the variable frequency power supply 11 and is provided with a positioning wire groove A8. The side of the integrated variable frequency excitation source chassis 1 is connected to a positioning wire groove B9. The positioning wire groove A8, the positioning wire groove B9 and the integrated variable frequency excitation source chassis 1 are integrally formed.

[0027] The bottom of the variable frequency power supply 11 is provided with a heat dissipation hole 14 , which is integrally formed with the housing of the variable frequency power supply 11 . The heat dissipation hole 14 can discharge the heat generated by the variable frequency power supply 11 .

[0028] The four corners of the top of the integrated variable frequency excitation source chassis 1 are connected with lifting rings 2, which are fixed to the integrated variable frequency excitation source chassis 1. The side of the base 15 is connected with a pull-out lifting piece 3, which can be pulled out to lift the integrated variable frequency excitation source chassis 1.

[0029] A control box 13 is connected to the surface of the integrated variable frequency excitation source chassis 1 , and the control box 13 is used to store a remote control box and test wiring, etc.

[0030] A power control board 4 is connected to the side of the integrated variable frequency excitation source chassis 1 , and the power control board 4 is used to control the internal components of the integrated variable frequency excitation source chassis 1 to operate.

[0031] Specifically, when in use, the dry-type transformer coil 10 is installed at the bottom of the excitation transformer 12, and the dry-type transformer coil 10 with the excitation transformer 12 is installed inside the integrated variable frequency excitation source chassis 1 and located on the top of the base 15. The variable frequency power supply 11 is then installed inside the integrated variable frequency excitation source chassis 1 and located on one side of the excitation transformer 12. By using the positioning wire groove A8 and the positioning wire groove B9 together, the wiring harness can be connected to the dry-type transformer coil 10, the excitation transformer 12 and the variable frequency power supply 11 respectively through the positioning wire groove A8 and the positioning wire groove B9, and then the variable frequency power supply 11 and the excitation transformer 12 are assembled inside the integrated variable frequency excitation source chassis 1. By integrating the variable frequency power supply 11 and the excitation transformer 12 together and completing the relevant connecting lines, on-site preparation time is saved and efficiency is improved.

[0032] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An integrated variable frequency excitation source device, characterized in that: include: An integrated variable frequency excitation source chassis (1), wherein a base (15) is provided at the bottom of the integrated variable frequency excitation source chassis (1); A side door (6), the side door (6) being arranged on a side of the integrated variable frequency excitation source chassis (1), and a top cover plate (5) being arranged on the top of the integrated variable frequency excitation source chassis (1); An input / output unit (7), the input / output unit (7) being arranged on a side of the integrated variable frequency excitation source chassis (1); An assembly mechanism is provided inside the integrated variable frequency excitation source chassis (1), and an excitation transformer (12) and a variable frequency power supply (11) are installed inside the integrated variable frequency excitation source chassis (1) through the assembly mechanism, so that the integrated variable frequency excitation source chassis (1) is assembled and transported to the site.

2. The integrated variable frequency excitation source device according to claim 1, characterized in that: The assembly mechanism includes a dry-type transformer coil (10) connected to the bottom of the excitation transformer (12), the dry-type transformer coil (10) is installed on the top of the base (15), the variable frequency power supply (11) is connected to the inside of the integrated variable frequency excitation source chassis (1) and is located on the top of the base (15), the surface of the base (15) is located on the side of the variable frequency power supply (11) and is provided with a positioning wire groove A (8), and the side of the integrated variable frequency excitation source chassis (1) is connected to a positioning wire groove B (9).

3. The integrated variable frequency excitation source device according to claim 2, characterized in that: A heat dissipation hole (14) is provided at the bottom of the variable frequency power supply (11).

4. The integrated variable frequency excitation source device according to claim 1, characterized in that: The four corners of the top of the integrated variable frequency excitation source chassis (1) are connected to lifting rings (2), and the sides of the base (15) are connected to pull-out lifting parts (3).

5. The integrated variable frequency excitation source device according to claim 1, characterized in that: A control box (13) is connected to the surface of the integrated variable frequency excitation source chassis (1).

6. The integrated variable frequency excitation source device according to claim 1, characterized in that: A power control board (4) is connected to the side of the integrated variable frequency excitation source chassis (1).

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