Medium-voltage reactor soft start cabinet

Abstract

The utility model discloses a medium voltage reactor soft start cabinet which comprises a cabinet body frame, the rear side of the cabinet body frame is respectively hinged with four rear doors through a plurality of hinges, the front side of the cabinet body frame is hinged with a hinged door through a plurality of hinges, a plurality of partition plates are arranged in the middle of the interior of the cabinet body frame, and the partition plates are connected with the cabinet body frame. A plurality of partition plates are arranged in the cabinet body frame and divide the interior of the cabinet body frame into a first installation chamber and a second installation chamber which are the same in volume, a plurality of supporting beams are further connected to the interior of the cabinet body frame, an electric reactor is installed in the first installation chamber, and a telescopic assembly used for moving the electric reactor is further arranged in the cabinet body frame. The utility model solves the problems that the existing soft start cabinet is closed, so that the high temperature generated by the reactor affects the heat accumulation in the cabinet, and the work of other electrical elements is affected.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical equipment, in particular to a medium-voltage reactor soft-start cabinet. Background Art

[0002] Medium-voltage reactor soft starters are widely used in motor control applications requiring voltage reduction or soft starting, particularly in applications with heavy starting loads and special requirements for starting characteristics, such as smooth starting and reduced grid shock during startup. For example, the ADGK high-voltage reactor starter is particularly well-suited for starting heavy industrial equipment such as air compressors. Medium-voltage reactor soft starters use reactors to limit the current during motor startup, reducing grid shock and protecting the motor from high starting currents.

[0003] The core of a soft-start cabinet lies in the reactor, which is connected in series between the power supply and the motor. During startup, the digital control board adjusts the magnetic amplifier to control the winding's excitation current. This changes the reactance of the saturated reactor to adjust the starting voltage drop, achieving soft starting of the motor. This starting method effectively reduces grid shock and mechanical damage to the motor during startup.

[0004] The reactor in the soft start cabinet may overheat after running for a long time. However, the existing soft start cabinet is closed, which causes the high temperature generated by the reactor to affect the heat accumulation in the cabinet and affect the operation of other electrical components. Utility Model Content

[0005] The purpose of the utility model is to overcome the existing defects and provide a medium voltage reactor soft start cabinet, which can push out the reactor, ensure that the soft start cabinet is not affected by the reactor, and improve the heat dissipation effect.

[0006] The technical solution for achieving the above-mentioned purpose is: a medium-voltage reactor soft start cabinet, comprising a cabinet frame, four rear doors hingedly connected to the rear side of the cabinet frame by multiple hinges, a double-door hingedly connected to the front side of the cabinet frame by multiple hinges, a side panel connected to the left and right side walls of the cabinet frame, a top plate and a base installed on the upper and lower sides of the cabinet frame, a plurality of partition plates provided in the middle part of the interior of the cabinet frame, the plurality of partition plates divide the interior of the cabinet frame into a first installation chamber and a second installation chamber of the same volume, a plurality of support beams connected to the interior of the cabinet frame, a reactor installed in the first installation chamber, and a telescopic component for moving the reactor provided in the cabinet frame.

[0007] Preferably, the telescopic assembly includes a guide rail frame, multiple sliders, a support frame, an electric push rod, a threaded rod, a support block and multiple fans and fan brackets. Two guide rail frames are provided on the inner bottom surface of the first installation chamber, and each guide rail frame is slidably connected with a slider, and each slider is connected to the support frame. The reactor is installed on the support frame, and the fan bracket is also connected to the support frame. The fan bracket is located at the rear side of the reactor, and multiple fans are installed on the fan bracket. The electric push rod is installed on the base of the cabinet frame, and the telescopic end of the electric push rod is connected to the support frame. The rear side of the support frame is threadedly connected to two threaded rods, and the lower end of each threaded rod is connected to the support block.

[0008] Preferably, each rear door is evenly provided with a plurality of dustproof holes.

[0009] Preferably, electrical components such as current transformers, voltage transformers, lightning arresters, circuit breakers and insulating parts are installed on each of the support beams.

[0010] Preferably, the reactor and each electrical component are electrically connected.

[0011] Preferably, each rear door is connected to a first handle, and each bi-fold door is connected to a second handle.

[0012] Preferably, both side panels are made of tempered glass.

[0013] The beneficial effects of the present invention are as follows: two guide rail frames are provided on the inner bottom surface of the first installation chamber, a slider is slidably connected in each guide rail frame, each slider is connected to a support frame, a reactor is installed on the support frame, and the support frame and the reactor can be pushed by an electric push rod. When the middle and rear half of the reactor moves out of the cabinet frame, under the action of multiple fans, the temperature generated by the reactor will not affect the temperature of other electrical components inside the device, thereby protecting other electrical components. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional diagram of the utility model;

[0015] Figure 2 It is a rear view of the utility model;

[0016] Figure 3 It is a schematic diagram of the utility model with the right side panel hidden;

[0017] Figure 4 This is a schematic diagram of the parts of the telescopic assembly of the utility model;

[0018] Figure 5 yes Figure 4 A partial enlarged view of point A in the middle.

[0019] In the figure: 1. Cabinet frame; 2. Rear door; 3. Reactor; 4. Double door; 5. Side panel; 7. Support beam; 8. Guide rail frame; 9. Slider; 10. Support frame; 11. Electric push rod; 12. Threaded rod; 13. Support block; 14. Fan; 15. Fan bracket; 16. First handle; 17. Dustproof hole. DETAILED DESCRIPTION

[0020] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. In the description of the present invention, it should be noted that the terms "center," "up," "down," "left," "right," "vertical," "horizontal," "inside," "outside," and the like, indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be construed as limiting the present invention. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] The present invention will be further described below with reference to the accompanying drawings.

[0022] like Figure 1-4 As shown, a medium voltage reactor soft start cabinet includes a cabinet frame 1, four rear doors 2, a double door 4, two side panels 5, multiple support beams 7, a reactor 3 and a telescopic component.

[0023] Specifically, the rear side of the cabinet frame 1 is hinged with four rear doors 2 through multiple hinges, and the front side of the cabinet frame 1 is hinged with double doors 4 through multiple hinges. The four rear doors 2 and the double doors 4 can be opened or closed freely. The left and right side walls of the cabinet frame 1 are respectively connected to a side panel 5, and the upper and lower sides of the cabinet frame 1 are respectively installed with a top plate and a base. The middle part of the interior of the cabinet frame 1 is provided with multiple partitions, and the multiple partitions divide the interior of the cabinet frame 1 into a first installation room and a second installation room with the same volume, which can facilitate the zoning of various electrical components. Multiple support beams 7 are also connected to the interior of the cabinet frame 1, and a reactor 3 is installed in the first installation room. A telescopic component for moving the reactor 3 is also provided in the cabinet frame 1.

[0024] Specifically, the telescopic assembly includes a guide rail frame 8, multiple sliders 9, a support frame 10, an electric push rod 11, a threaded rod 12, a support block 13 and multiple fans 14 and a fan bracket 15. The inner bottom surface of the first installation chamber is provided with two guide rail frames 8, each guide rail frame 8 is slidably connected to a slider 9, each slider 9 is connected to the support frame 10, and multiple sliders 9 play the role of supporting the support frame 10, and can also drive the support frame 10 to make linear motion along the direction of the guide rail frame 8. An inductor 3 is installed on the support frame 10, and a fan bracket 15 is also connected to the support frame 10. The fan bracket 15 is located at the rear side of the inductor 3, and multiple fans 14 are installed on the fan bracket 15. Multiple fans 14 can accelerate the circulation of air and better dissipate heat for the inductor 3. An electric push rod 11 is installed on the base of the cabinet frame 1, and the telescopic end of the electric push rod 11 is connected to the support frame 10. The rear side of the support frame 10 is threadedly connected to two threaded rods 12, and the lower end of each threaded rod 12 is connected to a support block 13.

[0025] Specifically, each rear door 2 is evenly provided with a plurality of dustproof holes 17, and each dustproof hole 17 plays a dustproof role; each support beam 7 is respectively installed with electrical components such as current transformers, voltage transformers, lightning arresters, circuit breakers and insulating parts, and supporting each electrical component by the support beam 7 can optimize the layout inside the cabinet; the reactor 3 and each electrical component are electrically connected; each rear door 2 is connected to a first handle 16, and each double door 4 is connected to a second handle. By setting the first handle 16 and the second handle, the rear door 2 and the double door 4 can be easily opened; the two side panels 5 are made of tempered glass material, and the use of this material can observe the situation inside the device.

[0026] Working principle: After the device has been working for a period of time, in order to prevent the high temperature generated by the reactor 3 from affecting the device, first open a rear door 2 close to the reactor 3, and then start the electric push rod 11. The electric push rod 11 pushes the support frame 10 and the reactor 3. When the support block 13 is outside the cabinet frame 1, the electric push rod 11 is closed. At this time, the two threaded rods 12 are rotated until the support block 13 contacts the ground, and then the electric push rod 11 is started again until the middle and rear half of the reactor 3 moves out of the cabinet frame 1, and the electric push rod 11 is closed. At this time, there is still a slider 9 located on the corresponding guide rail frame 8. Under the joint support of the slider 9 and the support block 13, the reactor 3 can be kept stable. In this state, the reactor 3 basically will not cause heat accumulation inside the device. At the same time, pushing the reactor 3 out can facilitate the inspection and maintenance of the reactor 3.

[0027] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A medium voltage reactor soft start cabinet, characterized in that: The invention comprises a cabinet frame (1), wherein the rear side of the cabinet frame (1) is hinged with four rear doors (2) via multiple hinges, and the front side of the cabinet frame (1) is hinged with a double door (4) via multiple hinges. The left and right side walls of the cabinet frame (1) are respectively connected to a side panel (5), and the upper and lower sides of the cabinet frame (1) are respectively installed with a top panel and a base. The middle part of the interior of the cabinet frame (1) is provided with multiple partitions, and the multiple partitions divide the interior of the cabinet frame (1) into a first installation room and a second installation room of the same volume. The interior of the cabinet frame (1) is also connected with multiple support beams (7), and a reactor (3) is installed in the first installation room. The cabinet frame (1) is also provided with a telescopic component for moving the reactor (3).

2. A medium voltage reactor soft start cabinet according to claim 1, characterized in that: The telescopic assembly comprises a guide rail frame (8), a plurality of sliders (9), a support frame (10), an electric push rod (11), a threaded rod (12), a support block (13), a plurality of fans (14) and a fan bracket (15), the inner bottom surface of the first installation chamber is provided with two guide rail frames (8), each of the guide rail frames (8) is slidably connected to a slider (9), each of the sliders (9) is connected to the support frame (10), the reactor (3) is installed on the support frame (10), and the support frame (1 0) is also connected to the fan bracket (15), the fan bracket (15) is located at the rear side of the reactor (3), and a plurality of fans (14) are installed on the fan bracket (15). The electric push rod (11) is installed on the base of the cabinet frame (1), and the telescopic end of the electric push rod (11) is connected to the support frame (10). The rear side of the support frame (10) is threadedly connected to two threaded rods (12), and the lower end of each threaded rod (12) is connected to the support block (13).

3. A medium voltage reactor soft start cabinet according to claim 1, characterized in that: A plurality of dustproof holes (17) are evenly provided on each rear door (2).

4. A medium voltage reactor soft start cabinet according to claim 1, characterized in that: A current transformer, a voltage transformer, a lightning arrester, a circuit breaker and an insulating component are respectively installed on each of the support beams (7).

5. A medium voltage reactor soft start cabinet according to claim 4, characterized in that: The reactor (3) is electrically connected to each electrical component.

6. A medium voltage reactor soft start cabinet according to claim 1, characterized in that: Each rear door (2) is connected to a first handle (16), and each biparting door (4) is connected to a second handle.

7. The medium voltage reactor soft start cabinet according to claim 1, characterized in that: Both side panels (5) are made of tempered glass material.

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