WO2021017409A1 - 一种移动式变电站 - Google Patents

一种移动式变电站 Download PDF

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Publication number
WO2021017409A1
WO2021017409A1 PCT/CN2019/130799 CN2019130799W WO2021017409A1 WO 2021017409 A1 WO2021017409 A1 WO 2021017409A1 CN 2019130799 W CN2019130799 W CN 2019130799W WO 2021017409 A1 WO2021017409 A1 WO 2021017409A1
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WIPO (PCT)
Prior art keywords
cabinet
voltage
substation
transformer
hgis
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PCT/CN2019/130799
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English (en)
French (fr)
Inventor
贾芳丽
康雪晶
尤晓亮
谢晓磊
狄谦
尹军华
寇新民
赵一帆
李燕华
毛慧琳
李帅飞
Original Assignee
河南平高电气股份有限公司
平高集团有限公司
国家电网有限公司
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Application filed by 河南平高电气股份有限公司, 平高集团有限公司, 国家电网有限公司 filed Critical 河南平高电气股份有限公司
Publication of WO2021017409A1 publication Critical patent/WO2021017409A1/zh

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B5/00—Non-enclosed substations; Substations with enclosed and non-enclosed equipment

Definitions

  • This application relates to a mobile substation.
  • the mobile substation has developed into a new power supply mode with convenient transportation, complete assembly, flexibility and reliability. It is mainly used for equipment failure, overhaul and temporary power supply during peak hours. It has a short use time and is suitable for power supply in different environments. application.
  • the structure of the existing mobile substation is much like the vehicle-mounted mobile substation disclosed in the Chinese Invention Patent Application Publication No. CN106532533A, including high-voltage substations and distribution vehicles.
  • the high-voltage substation includes pillar insulators and high-voltage switchgear. , Transformer and neutral protection device.
  • the distribution vehicle includes the control cabinet switch cabinet and cable winch. The low-voltage side bushing of the transformer is connected with the cable plug on the switch cabinet through the cable.
  • the frame cannot be made too large.
  • the transformer and high-voltage switch are placed on the same vehicle, due to size restrictions, the external dimensions of the transformer and high-voltage switchgear are relatively small.
  • the scale capacity is usually small and is not suitable for applications with large capacity requirements.
  • the purpose of this application is to provide a mobile substation suitable for applications with large capacity requirements, so as to solve the problem that the high-voltage switchgear and transformers of the existing mobile substations are installed on a vehicle and are not suitable for applications with large capacity requirements.
  • a mobile substation including: a high-voltage switchgear, including lightning arresters, voltage transformers, HGIS and prefabricated cabins for secondary equipment, the lightning arrester and the voltage transformer are all conductively connected to the incoming side of the HGIS;
  • the substation includes a complete set of neutral points sequentially distributed along the length of the substation , The transformer body and the cooler, the neutral point set device is conductively connected to the outlet side of the neutral point bushing of the transformer body;
  • the power distribution vehicle includes a switch cabinet prefabricated cabin, and the switch cabinet prefabricated cabin is arranged There are more than two incoming cabinets and multiple corresponding outgoing cabinets; when the high-voltage switch car, the substation car, and the distribution car are used together, the high-voltage side of the transformer body and the HGIS The outlet side is conductively connected, and the low-voltage side of the transformer body has more than two output terminals to be conductively connected
  • the mobile substation provided by the embodiments of the present application includes high-voltage switchgear, substation and distribution vehicle.
  • the HGIS is placed on the high-voltage switchgear, and the transformer body is placed on the substation. It is arranged separately from the transformer body, so that it is convenient to use a larger size HGIS and transformer body to meet the large-capacity transmission requirements under the condition of ensuring normal transmission.
  • at least two incoming cabinets and multiple outgoing cabinets are used in conjunction to achieve two-in-N-out or multiple-in and N-out, which is more suitable for meeting the requirements of large-capacity transmission.
  • integrating the prefabricated cabin of secondary equipment with HGIS, voltage transformer and arrester on the high-voltage switch car can effectively utilize the space of the high-voltage switch car and facilitate compact layout.
  • the corresponding output terminal of the transformer body is conductively connected to the corresponding incoming cabinet through a closed insulated bus.
  • the beneficial effect is that the closed insulated bus is used to realize the conductive connection between the output terminal of the transformer body and the incoming cabinet, which can improve the transmission safety and is suitable for the output of relatively large current.
  • an HGIS control cabinet is provided on the high-voltage switch car, and the HGIS control cabinet is directly connected to the secondary equipment prefabricated cabin by signal.
  • the beneficial effect is that the HGIS control cabinet is used to directly connect the signal to the prefabricated cabin of the secondary equipment, which facilitates the realization of centralized control.
  • the prefabricated cabin of the switch cabinet is provided with a station transformer cabinet, and a return cabinet and a busbar PT cabinet respectively provided corresponding to each of the incoming cabinets.
  • the corresponding cabinets in the prefabricated switchgear cabins are arranged in sequence along the length direction of the distribution vehicle, and the cabinets are arranged backward in the prefabricated switchgear cabins, so that the prefabricated switchgear cabins are in each There is an aisle in front of the cabinet.
  • the beneficial effect is that the cabinets are arranged in sequence and arranged at the back, so that the front aisle of the cabinet can be formed in the prefabricated cabin of the switch cabinet, which facilitates maintenance and repair of the corresponding cabinet.
  • a first external interface cabinet is fixed outside the secondary equipment prefabricated cabin, and the first external interface cabinet is directly signaled into the secondary equipment prefabricated cabin, and a main transformer is provided on the substation.
  • Contact cabinet, the main transformer contact cabinet is used for signal connection with the first external interface cabinet through a cable
  • the distribution vehicle has a second external interface cabinet that directly connects signals to the switch cabinet prefabricated cabin, so The second external interface cabinet is used for signal connection with the first external interface cabinet through cables.
  • the main transformer contact cabinet is set on the substation, and the second external interface cabinet signal is set on the distribution vehicle.
  • the main transformer contact cabinet and the second external interface cabinet can be connected to the first
  • the first external interface cabinet is connected with signals, and then the first external interface cabinet is connected to the prefabricated cabin of the secondary equipment, which is convenient for centralized control.
  • the lightning arresters on the high-voltage switch car are arranged in a triangle to ensure the electrical insulation distance.
  • the neutral point set device can be assembled on the substation to rotate outwards, and when transported, it can be rotated inward and retracted and fixed on the substation. When the mobile substation is in operation , Can be rotated outward to ensure electrical insulation distance.
  • the voltage transformers are arranged at intervals along the width direction of the high-voltage switch car, and the two voltage transformers on the side can be mounted on the high-voltage switch car so as to rotate outwards.
  • the two voltage transformers on the side can be retracted inward and fixed on the high-voltage switchgear, and when the mobile substation is in operation, the two voltage transformers on the side can be rotated outward Go out to ensure electrical insulation distance.
  • Fig. 1 is a schematic structural diagram of a high-voltage switch car in an embodiment of a mobile substation provided by an embodiment of the application;
  • Figure 2 is a schematic structural diagram of a substation in an embodiment of a mobile substation provided by an embodiment of the application;
  • FIG. 3 is a schematic structural diagram of a distribution vehicle in an embodiment of a mobile substation provided by an embodiment of the application;
  • Figure 4 is a schematic diagram of the internal structure of the distribution vehicle shown in Figure 3;
  • Figure 5 is a schematic diagram of the conductive connection between the prefabricated cabin of the switchgear in Figure 2 and the low-voltage side of the transformer body in Figure 3;
  • Fig. 6 is a top view of Fig. 5.
  • 1-Prefabricated cabin for secondary equipment 2-HGIS, 3-voltage transformer, 30-transformer rotating bracket, 4-arrester, 40-arrester bracket, 5-HGIS control cabinet, 6-transformer body, 60-output Terminal, 7-cooler, 8-neutral point complete set, 9-main transformer contact cabinet, 10-electric secondary equipment, 11-first external interface cabinet, 12-closed insulated bus, 13-bus support, 14- Fixed bracket, 100- prefabricated cabin of secondary equipment, 101- second external interface cabinet, 102- front aisle of cabinet, 103- cable outlet, 104- incoming cabinet, 105- return cabinet, 106- outlet cabinet, 107- Busbar PT cabinet, 108-station transformer cabinet.
  • the specific embodiments of the mobile substation provided in this application are shown in Figs. 1 to 6.
  • the mobile substation in this embodiment includes a high-voltage switchgear, a substation, and a distribution vehicle that are used in conjunction.
  • the length direction of the high-voltage switch car is defined as the front and rear direction
  • the length direction of the substation car is defined as the front and rear direction
  • the length direction of the distribution car is defined as the front and rear direction.
  • the width direction of the three cars is Left and right direction.
  • the high-voltage switch car For the high-voltage switch car, it includes the car body.
  • the prefabricated cabin 1, HGIS2, voltage transformer 3, and lightning arrester 4 are arranged on the car body in sequence along the front and rear directions.
  • HGIS2 has an inlet side and an outlet side, and the voltage mutual inductance
  • Both the device 3 and the lightning arrester 4 are conductively connected to the incoming line side of the HGIS2, and the outgoing line side of the HGIS2 is conductively connected to the high voltage side of the transformer body 6 of the substation during use.
  • the three lightning arresters 4 are provided for three phases.
  • the three arresters are correspondingly arranged on the arrester bracket 40, which is a triangular bracket, so that the three arresters are arranged in a triangle.
  • the three voltage transformers 3 are distributed along the left and right directions on the high-voltage switchgear. In order to ensure a sense of safety and long distance, among the three voltage transformers One is in the middle and the other two are on the sides.
  • the two voltage transformers on the sides can be assembled on the high-voltage switch car through the transformer rotating bracket 30 and can be rotated outwards.
  • the transformer can be retracted inward and fixed on the high-voltage switch car to ensure transportation stability.
  • the two voltage transformers on the side can be rotated outward to ensure the electrical insulation distance.
  • the corresponding rotating bracket is also relatively fixedly assembled with the body of the high-voltage switch car.
  • HGIS2 can adopt the HGIS structure in the prior art, such as the switchgear used in the mobile vehicle-mounted substation disclosed in the Chinese utility model patent with the authorized announcement number CN204167687U, or the Chinese utility model patent with the authorized announcement number CN206163970U.
  • HGIS combined electrical appliances for mobile substations.
  • Electrical secondary equipment 10 is provided in the secondary equipment prefabricated cabin 1 on the high-voltage switch car to detect secondary signals of the mobile substation.
  • the secondary equipment prefabricated cabin 1 is provided with And public measurement and control screens, DC screens, integrated power supply screens, 110kV line protection screens, main transformer protection screens and monitoring host screens, and to facilitate the access of secondary signals on substations and distribution cars, prefabricated in the secondary equipment
  • the HGIS control cabinet 5 is correspondingly installed. Since the HGIS control cabinet 5 and the secondary equipment prefabricated cabin 1 are both located on the high-voltage switch car, the HGIS concierge control cabinet 5 can directly signal into the secondary equipment prefabricated cabin 1.
  • the above-mentioned external cables are specifically plug-in cables to ensure that the high-voltage switch car, substation and distribution car can be quickly connected and responded quickly when they arrive at the site. After use, they can be quickly unplugged and quickly evacuated to ensure the vehicle-mounted mobile substation The rapid response.
  • the substation includes a car body.
  • the car body is provided with a transformer body 6 and a cooler 7 arranged in the front and rear direction.
  • the cooler 7 is connected to the transformer body 6 through a cooling circulation pipeline, and then The transformer body 6 is cooled.
  • the transformer capacity is also large, and the overall size of the transformer is large.
  • the width is less than 3m, and the transformer body and cooler adopt a split design.
  • Both the transformer body 6 and the cooler 7 are fixedly assembled on the corresponding car body by welding connection, wherein the transformer body is fixedly connected to the car body plate, and the cooler is welded and connected to the main beam of the car body. To increase seismic performance.
  • a neutral point set device 8 is provided corresponding to the high voltage side of the transformer body, and the neutral point set device 8 is conductively connected to the center point bushing outlet side of the transformer body 8.
  • the specific neutral point complete set of device 8 can be assembled on the substation to rotate outwards. During transportation, it can be rotated inwardly and retracted and fixed on the substation. When the mobile substation is in operation, it can be rotated outwards. Ensure electrical insulation distance.
  • the low voltage side of the transformer body 6 is provided with two output terminals 60, and each output terminal 60 includes three phases ABC.
  • the main transformer contact cabinet 9 is a combination of the main transformer control cabinet and the substation interface cabinet.
  • the main transformer contact cabinet 9 is used to connect with the first external
  • the signal connection of the interface cabinet 11 is convenient to disassemble during transportation.
  • the main transformer contact cabinet 9 is connected to the first external interface cabinet 11 by cables, and the signal in the main transformer contact cabinet 9 is sent to the secondary equipment.
  • the high-voltage side of the transformer body 6 is conductively connected to the outlet side of the HGIS2, so that the HGIS2 and the transformer body 6 are conductively connected.
  • the car body For the distribution car, it includes the car body.
  • the car body is provided with a switch cabinet prefabricated cabin 100.
  • the switch cabinet prefab cabin 100 is arranged with two incoming cabinets 104 and multiple outgoing cabinets 106, and also includes a station transformer cabinet 108, And the return line cabinet 105 and the busbar PT cabinet 107 respectively provided corresponding to each incoming cabinet.
  • the corresponding cabinets in the prefabricated switchgear compartment 100 are sequentially arranged in the front-rear direction, and the cabinets are arranged backward in the prefabricated switchgear compartment 100, so that a front aisle 102 is left in the prefabricated switchgear compartment in front of each cabinet.
  • a second external interface cabinet 101 is provided outside the switchgear prefabricated cabin 100, and the second external interface cabinet 101 is directly signal connected to the corresponding cabinet in the switchgear prefabricated cabin 100, and the second external interface cabinet 101 is connected through an external cable It can be connected to the corresponding signal of the first external interface cabinet 11 outside the secondary equipment prefabricated cabin 1 to transmit secondary signals.
  • the external cables here are also plug-in cables, which can be quickly connected when the substation and distribution car reach the site, and can be quickly disassembled and evacuated when used, to meet the rapid response of the entire mobile substation .
  • the two output terminals 60 arranged on the low-voltage side of the transformer body 6 are conductively connected to the two incoming cabinets 104 in a one-to-one correspondence.
  • the corresponding output terminals 60 of the transformer body pass through
  • the closed insulated bus bar 12 is electrically connected to the corresponding incoming cabinet 104.
  • the closed insulated bus bar is of the existing structure and can be purchased directly.
  • the closed insulated bus bar 12 is supported by the bus bar bracket 13, and the support of the bus bar bracket 13 is set on the top of the fixed bracket 14 to fix
  • the bracket 14 is detachably fixed on the ground.
  • the corresponding fixing bracket can be detachably fixed on the transformer body.
  • the mobile substation provided in this embodiment includes a high-voltage switch car, a substation, and a distribution car.
  • the transformer body 6 In order to meet the transportation requirements of a large-capacity mobile substation, the transformer body 6 and the cooling In order to meet the requirements of large-capacity transmission, the two-way output terminal 60 of the transformer body 6 is matched with two low-voltage output terminals 60.
  • the distribution vehicle is equipped with two incoming cabinets 104, and corresponding to each incoming cabinet 104. Two outlet cabinets realize the design of two in and N out. Moreover, because two sets of incoming cabinets 104 and matching outlet cabinets 106 are installed in the switchgear prefabricated cabin 100, the overall size is relatively large.
  • the secondary equipment prefabricated cabin 1 is integrated and arranged on the high-voltage switch car, and the corresponding The secondary signal is transmitted to the prefabricated cabin of the secondary equipment to realize centralized control.
  • the secondary equipment prefabricated cabin 1 and HGIS2, voltage transformer 3, lightning arrester 4, etc. are integratedly arranged on the high-voltage switch car to achieve a compact design and cooperate with the separate transformer body 6 And the cooler 7, and the two-in-N-out design on the distribution car can greatly increase the capacity of the mobile substation and increase the overall operating efficiency of the substation.
  • both the voltage transformer and the neutral point set device can be assembled on the corresponding car body to rotate outwards.
  • the rotating structure can adopt a rotating bracket and a rotating shaft.
  • the rotating shaft is rotatably assembled on the corresponding car body.
  • the bracket is fixedly assembled with the rotating shaft, and is used to support the installation of a voltage transformer or a complete set of neutral point devices.
  • the rotating bracket is fixedly assembled with the car body, and a longer lower support can be installed to support
  • the rotating bracket is fixedly assembled with the vehicle body, and a shorter lower support can be installed to support the corresponding rotating shaft bracket.
  • the rotating structure may also adopt the rotating support structure in the mobile substation disclosed in the Chinese Utility Model Patent with Authorized Announcement Number CN204927907U.
  • the voltage transformer, lightning arrester and neutral point complete set of devices can also be directly fixed on the corresponding car body without being designed as a rotating structure.
  • two incoming cabinets are provided on the distribution vehicle, and multiple outgoing cabinets are set corresponding to each incoming cabinet.
  • more than three incoming cabinets can also be set according to actual needs.
  • more than three incoming cabinets can be set according to actual needs, and multiple outgoing cabinets are set corresponding to each incoming cabinet.
  • On the low-voltage side of the transformer it is necessary to set up three or more outlet terminals to be connected to each incoming cabinet in a one-to-one correspondence to meet the normal conductive connection requirements and meet the large-capacity requirements.
  • the two output terminals on the low-voltage side of the transformer body are electrically connected to the corresponding incoming cabinet through a closed insulated bus bar, which can meet the insulation requirements of higher voltage and improve safety.
  • a cable that realizes the conductive connection between the low-voltage side bushing of the transformer and the incoming cabinet in the vehicle-mounted mobile substation in the application publication number CN106532533A can also be used.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Housings And Mounting Of Transformers (AREA)

Abstract

一种移动式变电站，包括：高压开关车，包括沿高压开关车长度方向依次布置的避雷器（4）、电压互感器（3）、HGIS（2）及二次设备预制舱（1），避雷器（4）、电压互感器（3）均导电连接在所述HGIS（2）的进线侧；变电车，包括沿变电车长度方向依次分布的中性点成套装置（8）、变压器器身（6）和冷却器（7）；配电车，包括开关柜预制舱（100），开关柜预制舱（100）中布置有两个进线柜（104）以及对应的多个出线柜（106）；所述高压开关车、变电车及配电车配合使用时，所述变压器器身（6）的高压侧与所述HGIS（2）的出线侧导电连接，所述变压器器身（6）的低压侧具有两路输出端子以与两进线柜（104）一一对应导电连接。将HGIS（2）和变压器器身（6）分开布置，这样方便采用较大尺寸的HGIS（2）及变压器器身（6），以及配电车上实现两进N出，更适于满足大容量传输要求。

Description

一种移动式变电站
相关申请的交叉引用
本申请基于申请号为201910707848.0、申请日为2019年08月01日的中国专利申请提出，并要求该中国专利申请的优先权，该中国专利申请的全部内容在此引入本申请作为参考。
技术领域
本申请涉及一种移动式变电站。
背景技术
目前，在供电系统中，移动式变电站已经发展成为一种运输方便、装配完善、灵活可靠的新型供电模式，主要用于设备故障、大修和高峰临时供电，使用时间短暂，适于不同环境下供电应用。
现有的移动式变电站的结构多如申请公布号为CN106532533A的中国发明专利中公开的车载移动式变电站，包括高压变电车和配电车，其中，高压变电车包括支柱绝缘子、高压开关设备、变压器和中性保护装置，配电车包括控制柜开关柜和电缆绞盘，变压器的低压侧套管通过电缆与开关柜上的电缆插拔头连通。
由于受场地、公路及移动性限制，车架不可能做的很大，将变压器和高压开关放置在一个车上时，由于尺寸限制，变压器和高压开关设备外形尺寸相对较小，移动式变电站的规模容量通常较小，不适合应用于有大容量需求的场所。
发明内容
本申请的目的在于提供一种适合应用于有大容量要求的移动式变电站，以解决现有移动式变电站中高压开关设备和变压器安装在一辆车上导致不适合应用于有大容量需求的场所的技术问题。
为实现上述目的，本申请实施例所提供的移动式变电站的技术方案是：一种移动式变电站，包括：高压开关车，包括沿所述高压开关车长度方向依次布置的避雷器、电压互感器、HGIS及二次设备预制舱，所述避雷器、所述电压互感器均导电连接在所述HGIS的进线侧；变电车，包括沿所述变电车长度方向依次分布的中性点成套装置、变压器器身和冷却器，所述中性点成套装置导电连接在所述变压器器身的中性点套管出线侧；配电车，包括开关柜预制舱，所述开关柜预制舱中布置有两个以上的进线柜以及对应的多个出线柜；所述高压开关车、所述变电车及所述配电车配合使用时，所述变压器器身的高压侧与所述HGIS的出线侧导电连接，所述变压器器身的低压侧具有两路以上的输出端子以与所述配电车上两个以上的所述进线柜一一对应导电连接。
有益效果是：本申请实施例所提供的移动式变电站中，包括高压开关车、变电车及配电车，将HGIS放置在高压开关车，将变压器器身放置在变电车上，将HGIS和变压器器身分开布置，这样方便采用较大尺寸的HGIS及变压器器身，以在保证正常输送的条件下，满足大容量传输要求。而且，对于配电车来讲，采用至少两个进线柜和多个出线柜配合使用，实现两进N出或多进N出，更适于满足大容量传输要求。另外，将二次设备预制舱与HGIS、电压互感器及避雷器集成在高压开关车上，可以有效的利用高压开关车的空间，便于实现紧凑化布置。
进一步地，所述变压器器身的相应输出端子通过封闭绝缘母线与对应的进线柜导电连接。
有益效果是：利用封闭绝缘母线实现变压器器身的输出端子与进线柜的导电连接，这样可以提高传输安全性，适用于较大电流的输出。
进一步地，所述高压开关车上设有HGIS汇控柜，所述HGIS汇控柜直接信号接入所述二次设备预制舱中。
有益效果是：利用HGIS汇控柜直接信号接入二次设备预制舱中，方便实现集中控制。
进一步地，所述开关柜预制舱中设有站变柜，以及对应各所述进线柜分别 设有的返线柜和母线PT柜。
进一步地，所述开关柜预制舱中的相应柜沿所述配电车长度方向依次排布，各柜在所述开关柜预制舱中靠后布置，以使所述开关柜预制舱中于各柜前方留有柜前过道。
有益效果是：各柜依次排布并靠后布置，进而可以在开关柜预制舱中形成柜前过道，方便对相应柜进行维护检修。
进一步地，所述二次设备预制舱外固设有第一外接口柜，所述第一外接口柜直接信号接入所述二次设备预制舱中，所述变电车上设有主变联络柜，所述主变联络柜用于通过线缆与所述第一外接口柜信号连接，所述配电车具有直接信号接入所述开关柜预制舱中的第二外接口柜，所述第二外接口柜用于通过线缆与所述第一外接口柜信号连接。
有益效果是：在变电车上设置主变联络柜，在配电车上设置第二外接口柜信号，在使用时，可通过线缆使主变联络柜、第二外接口柜分别与第一外接口柜信号连接，再由第一外接口柜接入二次设备预制舱中，便于集中控制。
进一步地，所述高压开关车上的避雷器呈三角形布置，以保证电气绝缘距离。
进一步地，所述中性点成套装置可向外旋转的装配在所述变电车，在运输时，可向内旋转收回并固定在所述变电车上，在所述移动式变电站运行时，可向外旋转出去以保证电气绝缘距离。
进一步地，所述电压互感器沿所述高压开关车宽度方向间隔布置有三个，处于边侧的两个所述电压互感器均可向外旋转的装配在所述高压开关车上，在运输时，处于边侧的两个所述电压互感器可向内收回并固定在所述高压开关车上，在所述移动式变电站运行时，处于边侧的两个所述电压互感器可向外旋转出去以保证电气绝缘距离。
附图说明
图1为本申请实施例所提供的移动式变电站的实施例中高压开关车的结构 示意图；
图2为本申请实施例所提供的移动式变电站的实施例中变电车的结构示意图；
图3为本申请实施例所提供的移动式变电站的实施例中配电车的结构示意图；
图4为图3所示配电车的内部结构示意图；
图5为图2中开关柜预制舱与图3中变压器器身低压侧导电连接示意图；
图6为图5的俯视图。
附图标记说明：
1-二次设备预制舱，2-HGIS，3-电压互感器，30-互感器旋转支架，4-避雷器，40-避雷器支架，5-HGIS汇控柜，6-变压器器身，60-输出端子，7-冷却器，8-中性点成套装置，9-主变联络柜，10-电气二次设备，11-第一外接口柜，12-封闭绝缘母线，13-母线支架，14-固定支架，100-二次设备预制舱，101-第二外接口柜，102-柜前过道，103-电缆出线孔，104-进线柜，105-返线柜，106-出线柜，107-母线PT柜，108-站变柜。
具体实施方式
下面结合附图对本申请实施例的实施方式作进一步说明。
本申请所提供的移动式变电站的具体实施例，如图1至图6所示，该实施例中的移动式变电站包括配合使用的高压开关车，变电车及配电车。
为方便表述，将高压开关车的长度方向定义为前后方向，将变电车的长度方向定义为前后方向，将配电车的长度方向定义为前后方向，相应的，三车的宽度方向则为左右方向。
对于高压开关车来讲，包括车体，车体上沿前后方向依次布置有二次设备预制舱1、HGIS2、电压互感器3及避雷器4，其中，HGIS2具有进线侧和出线侧，电压互感器3和避雷器4均导电连接在HGIS2的进线侧，HGIS2的出线侧在使用时与变电车的变压器器身6的高压侧导电连接。
由于涉及三相结构，避雷器4对应三相设置有三个，同时，为保证安全绝缘距离，三个避雷器对应的设置在避雷器支架40，避雷器支架40为三角形支架，使得三个避雷器呈三角形布置。
同样的，由于涉及三相结构，电压互感器3对应三相设置有三个，三个电压互感器在高压开关车上沿左右方向分布，为保证安全觉远距离，三个电压互感器中的其中一个处于中间，另外两个处于边侧，处于边侧的两电压互感器均可通过互感器旋转支架30可向外旋转的装配在高压开关车上，在运输时，处于边侧的两个电压互感器可向内收回并固定在高压开关车上，保证运输稳定性，在移动式变电站运行时，处于边侧的两个电压互感器均可向外旋转出去以保证电气绝缘距离，当然，在向外旋转到位后，相应旋转支架也与高压开关车的车体相对固定装配。
上述HGIS2可采用现有技术中的HGIS结构，如授权公告号为CN204167687U的中国实用新型专利中公开的用于移动式车载变电站的开关设备，或者是采用授权公告号CN206163970U的中国实用新型专利公开的移动变电站用的HGIS组合电器。
在高压开关车上的二次设备预制舱1中设有电气二次设备10，以用于检测移动式变电站的二次信号，本实施例中，在二次设备预制舱1中布置有对时及公用测控屏、直流屏、一体化电源屏、110kV线路保护屏、主变保护屏及监控主机屏，并且，为方便变电车及配电车上二次信号接入，在二次设备预制舱1外还设置有第一外接口柜11，用于通过外接线缆与变电车及配电车上的相应柜体信号连接，而在高压开关车上，对应设置HGIS汇控柜5，由于HGIS汇控柜5与二次设备预制舱1都位于高压开关车上，HGIS汇控柜5可以直接信号接入二次设备预制舱1中。
上述的外接电缆具体为插拔式电缆，保证高压开关车、变电车及配电车抵达现场时能够迅速连接，快速响应，在使用完后，能够快速拔出，迅速撤离，保证车载移动变电站的快速响应性。
对于变电车来讲，变电车包括车体，车体上设有沿前后方向依次布置的变 压器器身6和冷却器7，冷却器7通过冷却循环管路与变压器器身6连通，进而对变压器器身6进行冷却。对应于大容量使用要求的场所，变压器容量也较大，变压器整体尺寸较大，为保证变压器尺寸满足国内道路运输要求，宽度小于3m，变压器器身和冷却器采用分体式设计。变压器器身6和冷却器7均采用焊接连接的方式固定装配在相应车体上，其中，变压器器身固定连接在车体的车板上，而冷却器焊接连接在车体的主梁上，以增加抗震性能。
在变电车上，对应变压器器身的高压侧设有中性点成套装置8，中性点成套装置8导电连接在变压器器身8的中心点套管出线侧。具体的中性点成套装置8可向外旋转的装配在变电车上，在运输时，可向内旋转收回并固定在变电车上，在移动式变电站运行时，可向外旋转出去以保证电气绝缘距离。
本实施例中，为了与配电车的两进线柜对应，变压器器身6的低压侧设有两路输出端子60，每路输出端子60均包括ABC三相。
在变电车上还设有主变联络柜9，此处的主变联络柜由主变控制柜和变电车接口柜合并而成，主变联络柜9用于通过线缆与第一外接口柜11信号连接，在运输时方便拆开，在运行时，利用线缆将主变联络柜9与第一外接口柜11信号连接，将主变联络柜9中的信号发送至二次设备预制舱1中的相应二次电气设备。
在高压开关车和变电车在配合使用时，变压器器身6的高压侧与HGIS2的出线侧导电连接，以将HGIS2与变压器器身6导电连接。
对于配电车来讲，包括车体，车体上设有开关柜预制舱100，开关柜预制舱100中布置有两个进线柜104以及多个出线柜106，还包括站变柜108，以及对应各进线柜分别设有的返线柜105和母线PT柜107。并且，在开关柜预制舱100中的相应柜沿前后方向依次排布，各柜在开关柜预制舱100中靠后布置，以使开关柜预制舱中于各柜前方留有柜前过道102。
并且，在开关柜预制舱100外设有第二外接口柜101，第二外接口柜101与开关柜预制舱100中的相应柜直接信号连接，并且，第二外接口柜101通过外接线缆可与二次设备预制舱1外的第一外接口柜11对应信号连接，以传递二 次信号。此处的外接线缆也为插拔式线缆，在变电车和配电车达到现场时，可实现快速连接，在使用完成时，可迅速拆解撤离，满足整个移动式变电站的快速响应。
在变电车与配电车配合使用时，变压器器身6的低压侧布置的两路输出端子60与两进线柜104一一对应导电连接，具体的，变压器器身的相应输出端子60通过封闭绝缘母线12与对应的进线柜104导电连接，封闭绝缘母线为现有结构，可直接外购，封闭绝缘母线12由母线支架13支撑，母线支架13的支撑设置固定支架14的顶部，固定支架14可拆地固定设置在地面上，当然，如果需要支撑处于变压器器身上方的母线支架时，可将相应的固定支架可拆地固定设置在变压器器身上。
本实施例所提供的移动式变电站中，包括高压开关车、变电车及配电车，变电车上为满足大容量移动式变电站的运输要求，将较大尺寸的变压器器身6和冷却器7分体布置，而且，为满足大容量传输要求，配合变压器器身6低压的两路输出端子60，配电车上设置两个进线柜104，且对应各进线柜104分别设置多个出线柜，实现两进N出的设计。而且，由于开关柜预制舱100中安装两组进线柜104及配套的出线柜106，整体尺寸较大，将二次设备预制舱1集成布置在高压开关车上，并利用线缆将相应的二次信号传递至二次设备预制舱中，实现集中控制。
本实施例所提供的移动式变电站，将二次设备预制舱1和HGIS2、电压互感器3、避雷器4等集成布置在高压开关车上，实现紧凑化设计，配合分体设置的变压器器身6和冷却器7，以及配电车上两进N出的设计，可以极大限度的增加移动变电站的容量，增加了变电站整体运行效益。
本实施例中，电压互感器和中性点成套装置均可向外旋转的装配在相应车体上，旋转结构可采用旋转支架和旋转轴的方式，旋转轴转动装配在相应车体上，旋转支架与旋转轴固定装配，并用于支撑安装电压互感器或中性点成套装置，在向外转动展开时，将旋转支架与车体固定装配在一起，并可加装较长的下支撑以支撑相应的旋转支架，在向内转动收回时，将旋转支架与车体固定装 配在一起，并可加装较短的下支撑以支撑相应的旋转轴支架。在其他实施例中，旋转结构也可采用授权公告号为CN204927907U的中国实用新型专利中公开的移动变电站中的旋转支架结构。当然，如果相互之间满足电气绝缘要求的话，电压互感器、避雷器及中性点成套装置也可直接固定在相应车体上，不需要设计成旋转结构。
本实施例中，在配电车上设置两个进线柜，并对应各进线柜分别设置多个出线柜，在其他实施例中，也可根据实际需要设置三个以上的进线柜，并对应各进线柜分别设置出线柜，在其他实施例中，也可根据实际需要设置三个以上的进线柜，并对应各进线柜分别设置多个出线柜，相应的，此时，在变压器起身的低压侧需要设置三路以上的出线端子，以一一对应的与各进线柜导电连接，满足正常的导电连接要求，满足大容量要求。
本实施例中，变压器器身低压侧的两路输出端子通过封闭绝缘母线与相应进线柜导电连接，可满足较高电压的绝缘要求，提高安全性。在其他实施例中，如果满足使用要求的话，也可采用如申请公布号为CN106532533A中的车载移动式变电站中实现变压器低压侧套管与进线柜之间导电连接的线缆。

Claims (9)

  1. 一种移动式变电站，包括：
    高压开关车，包括沿所述高压开关车长度方向依次布置的避雷器、电压互感器、HGIS及二次设备预制舱，所述避雷器、所述电压互感器均导电连接在所述HGIS的进线侧；
    变电车，包括沿所述变电车长度方向依次分布的中性点成套装置、变压器器身和冷却器，所述中性点成套装置导电连接在所述变压器器身的中性点套管出线侧；
    配电车，包括开关柜预制舱，所述开关柜预制舱中布置有两个以上的进线柜以及对应的多个出线柜；
    所述高压开关车、所述变电车及所述配电车配合使用时，所述变压器器身的高压侧与所述HGIS的出线侧导电连接，所述变压器器身的低压侧具有两路以上的输出端子以与所述配电车上两个以上的所述进线柜一一对应导电连接。
  2. 根据权利要求1所述的移动式变电站，所述变压器器身的相应输出端子通过封闭绝缘母线与对应的进线柜导电连接。
  3. 根据权利要求1或2所述的移动式变电站，所述高压开关车上设有HGIS汇控柜，所述HGIS汇控柜直接信号接入所述二次设备预制舱中。
  4. 根据权利要求1或2所述的移动式变电站，所述开关柜预制舱中设有站变柜，以及对应各所述进线柜分别设有的返线柜和母线PT柜。
  5. 根据权利要求4所述的移动式变电站，所述开关柜预制舱中的相应柜沿所述配电车长度方向依次排布，各柜在所述开关柜预制舱中靠后布置，以使所述开关柜预制舱中于各柜前方留有柜前过道。
  6. 根据权利要求4所述的移动式变电站，所述二次设备预制舱外固设有第一外接口柜，所述第一外接口柜直接信号接入所述二次设备预制舱中， 所述变电车上设有主变联络柜，所述主变联络柜用于通过线缆与所述第一外接口柜信号连接，所述配电车具有直接信号接入所述开关柜预制舱中的第二外接口柜，所述第二外接口柜用于通过线缆与所述第一外接口柜信号连接。
  7. 根据权利要求1或2所述的移动式变电站，所述高压开关车上的避雷器呈三角形布置，以保证电气绝缘距离。
  8. 根据权利要求1或2所述的移动式变电站，所述中性点成套装置可向外旋转的装配在所述变电车，在运输时，可向内旋转收回并固定在所述变电车上，在所述移动式变电站运行时，可向外旋转出去以保证电气绝缘距离。
  9. 根据权利要求1或2所述的移动式变电站，所述电压互感器沿所述高压开关车宽度方向间隔布置有三个，处于边侧的两个所述电压互感器均可向外旋转的装配在所述高压开关车上，在运输时，处于边侧的两个所述电压互感器可向内收回并固定在所述高压开关车上，在所述移动式变电站运行时，处于边侧的两个所述电压互感器可向外旋转出去以保证电气绝缘距离。
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