Built-in reactor for phase change modulation

Abstract

The utility model discloses a built-in reactor for phase change modulation, which relates to the field of reactors and comprises a lower backing plate, a lower iron core cake, a lower supporting plate, a winding, an upper pressing plate, an upper iron core cake, a supporting plate insulator, a supporting plate, a long screw group, a supporting plate hanger plate and a reactor fixing screw group are sequentially arranged on the surface of the lower backing plate, the lower iron core cake is arranged on the surface of the lower backing plate, and the winding is arranged on the lower backing plate. The lower supporting plate is arranged on the surface of the lower iron core cake, the winding is arranged on the surface of the lower supporting plate, the upper pressing plate is arranged on the surface of the winding, the upper iron core cake is arranged on the surface of the upper pressing plate, and the supporting plate is arranged on the surface of the upper iron core cake in an insulating mode. The built-in reactor and the phase-modulation transformer main body are independently assembled and then assembled into a whole, the assembling quality of the built-in reactor and the phase-modulation transformer main body can be guaranteed, the manufacturing period can be shortened, the reactor is arranged in the phase-modulation transformer, and the short-circuit resistance of the phase-modulation transformer is improved on the premise that the structure of the phase-modulation transformer main body is not changed, especially when the phase-modulation transformer is in a zero phase angle.

Description

Technical Field

[0001] The utility model relates to the field of reactors, in particular to a built-in reactor for phase modulation. Background Art

[0002] At present, large-scale power systems are required to have very high reliability. However, it is quite complicated to ensure the stability of the current in a certain part or branch of the power system. The phase-shifting transformer is also called a phase angle adjuster. The voltage on its power supply side and load side is equal, but the phase angle difference on both sides is continuously adjustable within a certain range. The phase angle adjustment of the phase-shifting transformer can control the current of each parallel branch of the parallel power system, thereby solving the overcurrent problem caused by the parallel transmission circuit, so as to make the operation of the power system stable and efficient. However, short circuits to the ground occur frequently in the distribution network, which makes it particularly important to improve the short-circuit resistance of the phase-shifting transformer, especially at the zero phase angle.

[0003] Therefore, it is necessary to propose a built-in reactor for phase-modulating transformer to solve the above problems. Utility Model Content

[0004] The utility model aims to provide a built-in reactor for phase-adjusting transformer to solve the problem of frequent occurrence of short circuit to ground in the distribution network mentioned above.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a built-in inductor for phase change, comprising a lower pad, the surface of the lower pad being sequentially provided with a lower core cake, a lower support plate, a winding, an upper pressure plate, an upper core cake, a support plate insulation, a support plate, a long screw group, a support plate hanger plate and an inductor fixing screw group, the lower core cake being arranged on the surface of the lower pad, the lower support plate being arranged on the surface of the lower core cake, the winding being arranged on the surface of the lower support plate, the upper pressure plate being arranged on the surface of the winding, the upper core cake being arranged on the surface of the upper pressure plate, the support plate insulation being arranged on the surface of the upper core cake, the support plate being arranged on the surface of the upper core cake, the long screw group being arranged between the support plate and the lower pad, the support plate hanger being arranged on the surface of the support plate, and the inductor fixing screw group being arranged at the bottom of the lower pad.

[0006] Preferably, when the winding is installed, the winding head faces the main body side.

[0007] Preferably, threaded holes are provided on the support plate, the support plate insulation, the upper iron core cake and the upper pressure plate, and the long screw rod group is threadedly connected to the surface of the support plate through the threaded holes.

[0008] Preferably, one end of the long screw rod group away from the support plate is rotatably connected to the reactor fixing screw rod group via a bearing.

[0009] Preferably, the bottom of the reactor fixing screw rod group is fixed by bolts.

[0010] Technical effects and advantages of the utility model:

[0011] 1. The built-in reactor and the main body of the phase-modulating transformer are assembled independently and then assembled into one, which can ensure the assembly quality of each and shorten the manufacturing cycle.

[0012] 2. A built-in reactor is built into the phase-modulating transformer to improve its short-circuit resistance without changing the main structure of the phase-modulating transformer, especially when the phase-modulating transformer is at zero phase angle. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is the front view of the built-in reactor for phase-adjusting conversion and the main body installation of the utility model;

[0014] Figure 2 This is a top view of the built-in reactor and the main body installation of the utility model;

[0015] Figure 3 This is the front view of the built-in reactor of the utility model.

[0016] In the figure: 1. lower pad; 2. lower iron core cake; 3. lower support plate; 4. winding; 5. upper pressure plate; 6. upper iron core cake; 7. support plate insulation; 8. support plate; 9. long screw rod group; 10. support plate hanging plate; 11. reactor fixing screw rod group. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] The utility model provides Figure 1-Figure 3A built-in inductor for phase change shown in FIG. 1 comprises a lower pad 1, on the surface of which are sequentially arranged a lower core cake 2, a lower support plate 3, a winding 4, an upper pressure plate 5, an upper core cake 6, a support plate insulation 7, a support plate 8, a long screw group 9, a support plate hanger plate 10 and an inductor fixing screw group 11; the lower core cake 2 is arranged on the surface of the lower pad 1, the lower support plate 3 is arranged on the surface of the lower core cake 2, the winding 4 is arranged on the surface of the lower support plate 3, the upper pressure plate 5 is arranged on the surface of the winding 4, the upper core cake 6 is arranged on the surface of the upper pressure plate 5, the support plate insulation 7 is arranged on the surface of the upper core cake 6, the support plate 8 is arranged on the surface of the upper core cake 6, the long screw group 9 is arranged between the support plate 8 and the lower pad 1, the support plate hanger plate 10 is arranged on the surface of the support plate 8, and the inductor fixing screw group 11 is arranged at the bottom of the lower pad 1.

[0019] When the winding 4 is installed, the head of the winding 4 faces the main body side, and threaded holes are opened on the support plate 8, the support plate insulation 7, the upper core cake 6 and the upper pressure plate 5. The long screw group 9 is threadedly connected to the surface of the support plate 8 through the threaded holes. The end of the long screw group 9 away from the support plate 8 is rotatably connected to the inductor fixing screw group 11 through a bearing, and the bottom of the inductor fixing screw group 11 is fixed by bolts.

[0020] Working principle: Place the lower pad 1 on the fixture frame, and then place the lower iron core cake 2, the lower support plate 3, and the winding 4 in sequence. When placing the winding 4, make sure that the end of the winding 4 faces the main body. Then place the upper pressure plate 5, the upper iron core cake 6, the support plate insulation 7, and the support plate 8. During this process, make sure that the installation holes of the long screw group 9 of all the above parts are aligned, and then install the long screw group 9 to press the reactor winding 4 to complete the independent assembly of the built-in reactor.

[0021] The built-in reactor is hoisted onto the phase-adjusting transformer main body clamp by using the support plate hanging plate 10, and then the reactor winding 4 is connected to the main body, and finally the built-in reactor and the phase-adjusting transformer main body are firmly installed by using the reactor fixing screw rod group 11.

Claims

1. A built-in reactor for phase conversion, comprising a bottom plate (1), characterized in that: The surface of the lower pad (1) is provided with a lower iron core cake (2), a lower support plate (3), a winding (4), an upper pressure plate (5), an upper iron core cake (6), a support plate insulation (7), a support plate (8), a long screw group (9), a support plate hanging plate (10) and a reactor fixing screw group (11) in sequence; the lower iron core cake (2) is arranged on the surface of the lower pad (1), the lower support plate (3) is arranged on the surface of the lower iron core cake (2), and the winding (4) is arranged on the surface of the lower support plate (3). The upper pressure plate (5) is arranged on the surface of the winding (4), the upper iron core cake (6) is arranged on the surface of the upper pressure plate (5), the support plate insulation (7) is arranged on the surface of the upper iron core cake (6), the support plate (8) is arranged on the surface of the upper iron core cake (6), the long screw group (9) is arranged between the support plate (8) and the lower pad (1), the support plate hanging plate is arranged on the surface of the support plate (8), and the reactor fixing screw group (11) is arranged at the bottom of the lower pad (1).

2. The built-in reactor for phase conversion according to claim 1, characterized in that: When the winding (4) is installed, the winding (4) protrudes toward the main body side.

3. The built-in reactor for phase conversion according to claim 1, characterized in that: The support plate (8), the support plate insulation (7), the upper iron core cake (6) and the upper pressure plate (5) are all provided with threaded holes, and the long screw rod group (9) is threadedly connected to the surface of the support plate (8) through the threaded holes.

4. The built-in reactor for phase conversion according to claim 3 is characterized in that: One end of the long screw rod group (9) away from the support plate (8) is rotatably connected to the reactor fixing screw rod group (11) via a bearing.

5. The built-in reactor for phase conversion according to claim 4, characterized in that: The bottom of the reactor fixing screw rod group (11) is fixed by bolts.

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