Novel wire outlet integrated structure of phase modifier

Abstract

The utility model provides a novel phase modifier outgoing line integrated structure, which relates to the technical field of phase modifier stator outgoing line integrated equipment, and comprises a stator casing and a stator outgoing line bus, the side surface of the stator casing is provided with an outgoing line integrated box, and at least one side in the stator casing is provided with an independent installation cavity. The position of the outgoing line integration box is opposite to the installation cavity, the number of the outgoing line integration box is corresponding to that of the installation cavity, a current transformer support is arranged in the installation cavity and used for placing a current transformer, and the stator outgoing line bus is sequentially installed in the current transformer in the cavity, the stator casing and the outgoing line integration box entering the side surface of the stator casing. The space of the stator casing is reasonably utilized, the wire outlet integrated structure is integrated on the stator casing, on one hand, the requirement for wire outlet integration of the phase modifier is met, wire outlet is completed on the stator casing, the occupied area is reduced, on-site installation and debugging are not needed, and integrated installation, debugging and integrated arrangement are carried out in a manufacturing plant and are transported to the site along with the whole machine.

Description

Technical Field

[0001] The utility model relates to the technical field of synchronous condenser stator outgoing line integrated equipment, in particular to a novel synchronous condenser outgoing line integrated structure. Background Art

[0002] In the existing stator outgoing line system of a synchronous condenser or a generator, the outgoing line bus of the stator is generally led out from inside the stator casing, and a compensating bus structure is connected outside the machine. An independent current transformer and a wiring protection integrated cabinet are arranged in the small room where the generator or the synchronous condenser is placed. The existing outgoing line layout system is independently arranged in a distributed manner by structures outside and inside the machine.

[0003] For example, in a Chinese patent document with a publication number of CN206542191U and a publication date of October 3, 2017, titled "An Integrated and Enclosed Generator Outgoing Line", it includes an enclosed common box bus, an insulating support, a copper busbar, a current transformer, a lightning arrester, a zero-sequence current transformer, and an enclosed common box body. The insulating supports are linearly and sequentially fixed on the inner wall of the enclosed common box body; the copper busbar is arranged inside the enclosed common box body and fixed on the insulating supports; the enclosed common box bus is attached to the outer surface of the enclosed common box body, and the enclosed common box bus is correspondingly connected to the generator outgoing line terminal and the generator outlet switch cabinet.

[0004] In the technical solution with the publication number of CN206542191U mentioned above, the current transformer, the lightning arrester, the copper busbar, etc. are arranged in the vertical-section enclosed box body and the horizontal-section enclosed box body to form two separate integrated box bodies. The vertical-section enclosed box body is arranged in the generator small room, and the horizontal-section enclosed box body is arranged in the wall of the generator small room. Although such a design reduces the floor area occupied by the generator outgoing line, on the one hand, such an arrangement method forms two separate integrated box bodies placed in the generator small room, occupying a large area. On the other hand, it requires on-site installation, and the installation is complex, and on-site assembly and debugging are also required. Content of the Utility Model

[0005] To solve the deficiencies of the existing technology, the utility model provides a novel synchronous condenser outgoing line integrated structure, which reasonably utilizes the space inside and outside the stator casing, integrates the outgoing line integrated structure on the stator casing. On the one hand, it solves the need for synchronous condenser outgoing line integration, and all the outgoing lines are completed on the stator casing, reducing the occupied area. On the other hand, there is no need for on-site installation and debugging. The integrated assembly and debugging are carried out in the manufacturing factory, and the integrated layout is transported to the site together with the whole machine.

[0006] The utility model is realized through the following technical solutions:

[0007] A novel integrated structure for the outgoing line of a synchronous condenser, comprising a stator housing and a stator outgoing line busbar, characterized in that: an outgoing line integrated box is arranged on the side of the stator housing for placing on-site equipment for measuring the stator outgoing line and grounding protection; at least one independent installation cavity is arranged on at least one side inside the stator housing; the position of the outgoing line integrated box is opposite to the installation cavity and corresponds to the number of installation cavities; a current transformer support is arranged in the installation cavity for placing a current transformer; the stator outgoing line busbar sequentially passes through the current transformer in the installation cavity and the stator housing and enters the outgoing line integrated box on the side of the stator housing.

[0008] Further, installation cavities are arranged on both sides inside the stator housing, and outgoing line integrated boxes are arranged on both sides outside the stator housing, and the positions of the outgoing line integrated boxes are opposite to the installation cavities.

[0009] Further, the current transformer support is a plate-frame structure cavity for placing a current transformer.

[0010] Further, a plurality of ventilation windows for cooling the current transformer are arranged on one side of the plate-frame structure cavity, and an inlet for placing the current transformer is arranged on the side opposite to the ventilation windows. Ventilation windows are arranged on the current transformer support so that the gas inside the stator housing can cool the current transformer, ensuring that the current transformer will not be damaged due to overheating during loading, improving the service life of the current transformer, and ensuring the working efficiency of the current transformer.

[0011] Further, a plurality of current transformers are placed in the plate-frame structure cavity, and each current transformer corresponds to a ventilation window. The plate-frame structure cavity capable of placing a plurality of current transformers is reasonably designed according to the space inside the stator housing, and each current transformer placed in the plate-frame structure cavity is correspondingly provided with a ventilation window for cooling, further ensuring the safety performance of each current transformer.

[0012] Further, the current transformer adopts an integrated combined fully insulated cast current transformer. The use of an integrated combined fully insulated cast current transformer has excellent insulation performance, is resistant to pollution and humidity, improves the service life of the current transformer, reduces costs, and the integrated combination is more convenient for integrated installation.

[0013] Further, the stator outgoing line busbars are symmetrically arranged on the left and right sides inside the stator housing, with one row arranged longitudinally on each side and arranged in a three-column manner. The space inside the stator housing is reasonably utilized to arrange the stator outgoing line, which is convenient for integration with the protection equipment in the integrated box.

[0014] Further, an outlet integrated box is provided with an outlet sealing insulating plate on one side, and the outlet integrated box and the outlet sealing insulating plate are fastened to the stator housing by bolts. The position of the outlet sealing insulating plate is opposite to the position of the installation cavity. The stator outlet busbar enters one side of the installation cavity, passes through the current transformer, and enters the outlet integrated box after passing through the outlet sealing insulating plate on the other side of the installation cavity. The outlet sealing insulating plate supports the stator outlet busbar, and can seal and insulate, reducing the impact of electric leakage on the equipment and enhancing the safety during maintenance.

[0015] Further, the outlet sealing insulating plate includes an F-class insulating plate and a polytetrafluoroethylene sealing rubber plate.

[0016] Further, the plate-type frame structure cavity is a structure cavity welded by stainless steel material with low magnetic permeability.

[0017] The utility model has the following beneficial effects compared with the prior art:

[0018] 1. In the utility model, the space inside and outside the stator housing is reasonably utilized. The outlet integrated box, the wiring protection device, and the current transformer are integrated on the stator housing. On the one hand, it solves the requirement for the integration of the outlet of the synchronous condenser, and all the outlets are completed on the stator housing, reducing the occupied area. On the other hand, no secondary installation and commissioning are required at the installation site, and the integrated layout is transported to the site together with the whole machine.

[0019] 2. In the utility model, an installation cavity is assembled inside the stator housing, and a current transformer support is arranged in the installation cavity for the current transformer. The space inside the stator housing is reasonably utilized for layout, and no separate integrated cabinet is set to place equipment such as current transformers, reducing the floor area.

[0020] 3. In the utility model, ventilation windows are arranged on the plate-type frame structure cavity designed as the current transformer support so that the gas inside the stator housing cools the current transformer, making the current transformer no longer placed in a sealed cabinet, ensuring that the current transformer will not be damaged due to overheating under load, improving the service life of the current transformer, and ensuring the working efficiency of the current transformer.

[0021] 4. In the utility model, the outlet integrated box is arranged on the stator housing, and local equipment for measuring and grounding protection of the stator outlet is arranged inside the outlet integrated box. No separate sealed box is set to place the local equipment for measuring and grounding protection of the stator outlet, reducing the indoor occupied area.

[0022] 5. In the utility model, the stator outlet busbars are symmetrically arranged on the left and right sides, with one row arranged longitudinally on each side and arranged in a three-column manner. The space inside the stator housing is reasonably utilized to arrange the stator outlet busbars in this way, which is convenient for matching with the wiring protection equipment inside the outlet integrated box. Description of the Drawings

[0023] Figure 1 It is the P - direction view of the integrated structure of the outgoing line of the synchronous condenser;

[0024] Figure 2 It is the schematic diagram of the structure of the current transformer support;

[0025] Figure 3 It is the P - direction view of the current transformer support.

[0026] Reference numerals in the drawings: 1 - stator housing, 2 - stator outgoing line bus, 3 - installation cavity, 4 - current transformer support, 5 - current transformer, 6 - outgoing line integrated box, 7 - outgoing line sealing insulation board, 8 - ventilation window, 9 - inlet. Detailed Description of the Invention

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0028] Embodiment 1

[0029] Referring to the attached drawings of the specification Figure 1 As shown, a new - type integrated structure of the outgoing line of the synchronous condenser includes a stator housing 1 and a stator outgoing line bus 2. An outgoing line integrated box 6 for placing on - site equipment for measurement and grounding protection of the stator outgoing line is arranged on the side of the stator housing 1. At least one independent installation cavity 3 is arranged on at least one side inside the stator housing 1. The position of the outgoing line integrated box 6 is directly opposite to the installation cavity 3 and corresponds to the number of installation cavities 3. A current transformer support 4 for placing a current transformer 5 is arranged in the installation cavity 3. The stator outgoing line bus 2 passes through the current transformer 5 in the installation cavity 3 and the stator housing 1 in sequence and enters the outgoing line integrated box 6 hung on the side of the stator housing 1.

[0030] In this embodiment, the space inside and outside the stator housing 1 is reasonably utilized, and the outgoing line integrated structure is integrated on the stator housing 1. On the one hand, it solves the need for integrated integration of the outgoing line of the synchronous condenser, and all outgoing lines are completed on the stator housing 1, reducing the occupied area. On the other hand, there is no need for on - site installation and commissioning. It is assembled and commissioned at the manufacturing plant, without secondary installation and commissioning, and the integrated layout is transported to the site together with the whole machine.

[0031] Embodiment 2

[0032] This embodiment further elaborates and supplements the implementation manner of the present invention on the basis of Embodiment 1.

[0033] Refer to the attached drawings of the specification Figure 1 As shown, mounting cavities 3 are provided on both sides inside the stator housing 1, and outlet integrated boxes 6 are provided on both sides outside the stator housing 1, and the positions of the outlet integrated boxes 6 are opposite to the mounting cavities 3. By reasonably utilizing the space inside and outside the stator housing 1, mounting cavities 3 and outlet integrated boxes 6 are provided on both sides inside and outside the stator housing 1, which can improve the working efficiency of on-site equipment.

[0034] Embodiment 3

[0035] This embodiment further elaborates and supplements the implementation manner of the present utility model on the basis of Embodiment 1 or 2.

[0036] As an implementation manner of this embodiment, refer to the attached drawings of the specification Figure 2 As shown, the current transformer support 4 is a plate-frame structure cavity for placing the current transformer, and the plate-frame structure cavity is welded by stainless steel with low magnetic permeability.

[0037] As another implementation manner of this embodiment, refer to the attached drawings of the specification Figure 2-3 As shown, a plurality of ventilation windows 8 for cooling the current transformer 5 are provided on one side of the plate-frame structure cavity, and an inlet 9 for placing the current transformer 5 is provided on the opposite side of the ventilation window 8. Ventilation windows 8 are provided on the current transformer support 4 so that the gas in the stator housing 1 of the synchronous condenser can cool the current transformer 5, ensuring that the current transformer 5 will not be damaged due to overheating during loading, improving the service life of the current transformer 5, and ensuring the working efficiency of the current transformer 5.

[0038] As another implementation manner of this embodiment, refer to the attached drawings of the specification Figure 2-3 As shown, a plurality of current transformers 5 are placed in the plate-frame structure cavity, and each current transformer 5 corresponds to a ventilation window 8. The plate-frame structure cavity capable of placing a plurality of current transformers 5 is reasonably designed according to the space inside the stator housing 1, and each current transformer 5 placed in the plate-frame structure cavity is correspondingly provided with a ventilation window 8 for cooling, further ensuring the safety performance of the current transformer 5.

[0039] As another implementation manner of this embodiment, the current transformer 5 adopts an integrated combined fully insulated cast current transformer. Using the integrated combined fully insulated cast current transformer has excellent insulation performance, is resistant to pollution and humidity, improves the service life of the current transformer 5, reduces costs, and the integrated combination is more convenient for integrated installation.

[0040] Embodiment 4

[0041] This embodiment further elaborates and supplements the implementation mode of the present utility model on the basis of Embodiment 1, Embodiment 2 or Embodiment 3.

[0042] As an implementation mode of this embodiment, the stator outgoing line busbars 2 are symmetrically arranged on the left and right sides inside the stator housing 1, with one row arranged longitudinally on each side and arranged in a three-column manner. The space inside the stator housing 1 is reasonably utilized to arrange the stator outgoing lines, which is convenient for integration with the protection equipment in the integrated box.

[0043] As another implementation mode of this embodiment, referring to the attached Figure 1 As shown, an outgoing line sealing insulating plate 7 is provided on one side of the outgoing line integrated box 6, and the outgoing line integrated box 6 and the outgoing line sealing insulating plate 7 are fastened to the stator housing 1 by bolts. The position of the outgoing line sealing insulating plate 7 is opposite to the position of the installation cavity 3. After the stator outgoing line busbar 2 enters one side of the installation cavity 3, it passes through the current transformer 5, and then enters the outgoing line integrated box 6 after passing through the outgoing line sealing insulating plate 7 on the other side of the installation cavity 3. The outgoing line sealing insulating plate 7 supports the stator outgoing line busbar 2 and can seal and insulate, reducing the impact of electric leakage on the equipment and enhancing the safety during maintenance.

[0044] As another implementation mode of this embodiment, the outgoing line sealing insulating plate 7 includes an F-class insulating plate and a polytetrafluoroethylene sealing rubber plate.

Claims

1. A novel phase condenser outgoing line integrated structure, comprising a stator housing (1) and a stator outgoing line busbar (2), characterized in that: An outlet integrated box (6) is provided on the side of the stator housing (1) for accommodating local equipment for measuring and grounding protection of stator outlets. An independent installation cavity (3) is provided on at least one side of the stator housing (1). The outlet integrated box (6) is located opposite the installation cavity (3) and corresponds to the number of the installation cavities (3). A current transformer support (4) is provided in the installation cavity (3) for accommodating a current transformer (5). The stator outlet busbar (2) passes through the current transformer (5) in the installation cavity (3) and the stator housing (1) in sequence and enters the outlet integrated box (6) on the side of the stator housing (1).

2. According to claim 1, a novel phase modulator outlet integrated structure is characterized by: The stator housing (1) is provided with mounting cavities (3) on both sides inside, and an outgoing wire integration box (6) is provided with both sides outside the stator housing (1), and the outgoing wire integration box (6) is located opposite to the mounting cavity (3).

3. A novel phase modulator outlet integrated structure according to any one of claims 1 or 2, characterized in that: The current transformer support (4) is a plate-type frame structure cavity.

4. According to claim 3, a novel phase modulator outlet integrated structure is characterized in that: A plurality of ventilation windows (8) for cooling the current transformer (5) are provided on one side of the plate-type frame structure cavity, and an inlet (9) for placing the current transformer (5) is provided on the side opposite to the ventilation windows (8).

5. According to claim 4, a novel phase modulator outlet integrated structure is characterized in that: A plurality of current transformers (5) are placed in the plate-type frame structure cavity, and each current transformer (5) corresponds to a ventilation window (8).

6. According to claim 5, a novel phase modulator outlet integrated structure is characterized in that: The current transformer (5) is an integrated, fully insulated, cast-type current transformer.

7. According to claim 3, a novel phase modulator outlet integrated structure is characterized in that: The stator outgoing busbars (2) are symmetrically arranged on the left and right sides in the stator housing (1), with one row arranged longitudinally on each side and arranged in three columns.

8. According to claim 3, the novel phase modulator outlet integrated structure is characterized by: An outlet sealing insulating plate (7) is provided on one side of the outlet integrated box (6), and the outlet integrated box (6) and the outlet sealing insulating plate (7) are fastened to the stator housing (1) by means of bolts, with the outlet sealing insulating plate (7) being located opposite to the position of the installation cavity (3).

9. The novel phase modulator outlet integrated structure according to claim 8 is characterized by: The outlet sealing insulation plate (7) comprises an F-class insulation plate and a tetrafluoroethylene sealing rubber plate.

10. The novel phase modulator outlet integrated structure according to claim 6 is characterized by: The plate-type frame structure cavity is a structure cavity welded with stainless steel material with low magnetic permeability.

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