CN104967036A - An integrated intelligent combined substation - Google Patents
An integrated intelligent combined substation Download PDFInfo
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Abstract
本发明涉及一种一体化智能组合变电站，其安装于地面或离地安装于杆上，包括户外一体化智能组合电器、变压器、综合智能配电箱或配变低压保护开关箱、中压电缆附件，所述综合智能配电箱或配变低压保护开关箱固定安装在变压器的低压端子一侧；该变电站通过户外一体化智能组合电器完成对油浸式电力变压器高压侧的保护和隔离，通过综合智能配电箱或配变低压保护开关箱完成低压侧配电和保护等综合功能，提高供电可靠性和电能质量，选配的配电自动化设备和智能感知终端，可实现配电台区的智能化管理和状态检修。
The invention relates to an integrated intelligent combined substation, which is installed on the ground or on a pole above the ground, including outdoor integrated intelligent combined electrical appliances, transformers, integrated intelligent distribution boxes or low-voltage protection switch boxes for distribution transformers, and medium-voltage cable accessories , the comprehensive intelligent distribution box or distribution transformer low-voltage protection switch box is fixedly installed on the low-voltage terminal side of the transformer; the substation completes the protection and isolation of the high-voltage side of the oil-immersed power transformer through an outdoor integrated intelligent combination device, The intelligent distribution box or distribution transformer low-voltage protection switch box completes comprehensive functions such as low-voltage side power distribution and protection, and improves power supply reliability and power quality. management and condition-based maintenance.
Description
技术领域 technical field
本发明涉及智能电网输变电、配电技术领域，具体是涉及一种一体化智能组合变电站。 The present invention relates to the field of smart grid power transmission and distribution technology, in particular to an integrated intelligent combined substation.
背景技术 Background technique
现有配电台区在实际应用中存在很多局限性，如负荷密集区城网改造及小型商业配电建设面临无建设用地的窘境；临时用电施工繁杂，拆装移动不便；预装式变电站无法适应防洪地区的现实需求；别墅高端住宅的地埋变也需性价比更高的替代方案；分布式电源接入（如太阳能发电），电动汽车充电桩电源，小型岸电系统（减少排污）等新技术由于规划设计滞后等因素，目前很难找到切实可行的解决方案，难以满足国家提出的节能环保政策的要求。 There are many limitations in the actual application of the existing distribution station areas, such as the dilemma of no construction land for urban network reconstruction and small commercial power distribution construction in load-intensive areas; the construction of temporary power consumption is complicated, and it is inconvenient to disassemble and move; prefabricated substations Unable to adapt to the actual needs of flood control areas; buried high-end villa substations also need more cost-effective alternatives; distributed power access (such as solar power generation), electric vehicle charging pile power supply, small shore power system (reduce pollution), etc. Due to factors such as lag in planning and design of new technologies, it is difficult to find practical solutions at present, and it is difficult to meet the requirements of the state's energy conservation and environmental protection policies.
虽然采用现有的台架是变压器可以进一步解决上述问题。但是，现有的台架变压器，绝缘化水平低，施工工艺控制点较多，导致故障和安全隐患多，易影响线路的跳闸率。可见，现有户外配电台区还需要进一步完善功能、进行优化配置，同时需要因地制宜开展建设，本着“经济实惠、注重实效”的原则，根据不同地域特点、不同经济发展水平、不同的电网现状有区别的开展建设。配电台区在一体化设计、功能集成以及互动化等功能上还需要进一步进行完善和研究。 Although adopting existing stand is that the transformer can further solve the above-mentioned problems. However, the existing bench transformer has a low level of insulation and many control points in the construction process, resulting in many faults and potential safety hazards, which can easily affect the tripping rate of the line. It can be seen that the existing outdoor distribution stations still need to further improve their functions and optimize their configuration. The status quo is different to carry out construction. The integrated design, functional integration and interactive functions of the distribution station need to be further improved and studied.
专利号为ZL201420232114.4的中国实用新型专利申请公开了一种10KV智能式费控柱上式组合式变电站，该组合式变电站包括智能式费控真空负荷开关、变压器、低压JP柜；低压JP柜在变压器的前部，变压器的后部上端通过固定螺栓固定设有支架，支架上设有装有智能费控真空负荷开关的不锈钢箱体，不锈钢箱体密封设有10kV电压互感器，用10kV高压电缆将智能式费控真空负荷开关出线与变压器的高压侧相连接。该组合式变电站，虽然将智能式费控真空负荷开关、变压器、低压JP柜组合为一体，但是其结构较为分散，安全性较差不适合进行户外安装。 The Chinese utility model patent application with the patent number ZL201420232114.4 discloses a 10KV intelligent fee-controlled pole-mounted combined substation, which includes an intelligent fee-controlled vacuum load switch, a transformer, a low-voltage JP cabinet; a low-voltage JP cabinet In the front of the transformer, the upper end of the rear of the transformer is fixed with a bracket by fixing bolts. The bracket is equipped with a stainless steel box equipped with an intelligent fee-controlled vacuum load switch. The stainless steel box is sealed with a 10kV voltage transformer. The cable connects the outgoing line of the intelligent charge-controlled vacuum load switch with the high-voltage side of the transformer. Although the combined substation combines intelligent cost-controlled vacuum load switches, transformers, and low-voltage JP cabinets, its structure is scattered and its safety is poor, so it is not suitable for outdoor installation.
发明内容 Contents of the invention
为克服上述现有技术中的缺陷与不足本发明提供一种组合式变电站，该变电站通过户外一体化智能组合电器完成对油浸式电力变压器高压侧的保护和隔离，通过综合智能配电箱或配变低压保护开关箱完成低压侧配电和保护等综合功能，提高供电可靠性和电能质量，选配的配电自动化设备和智能感知终端，可实现配电台区的智能化管理和状态检修。站所终端具备模拟量和状态量的采集和远传功能，具备开关就地控制功能，可以在当地或远方设定动作定值，同时，具备故障检测及判别功能，发生故障时可以快速判别并隔离故障。 智能配电终端，本装置的智能配电终端，综合了现有的多重装置的功能，可以对电力变压器、进出线开关、剩余电流动作保护器、智能电能表等运行信息进行采集和用户用电信息进行收集，具备完成配电变压器计量总表监测、剩余电流动作保护器监测、状态监测、负荷管理、动态无功补偿/三相不平衡治理/谐波治理、安全防护、互动化管理、资产管理、视频监视、环境监测和分布式电源接入管理等功能。 In order to overcome the defects and deficiencies in the above-mentioned prior art, the present invention provides a combined substation. The substation completes the protection and isolation of the high voltage side of the oil-immersed power transformer through an outdoor integrated intelligent combined electrical appliance, and through a comprehensive intelligent distribution box or The distribution transformer low-voltage protection switch box completes comprehensive functions such as power distribution and protection on the low-voltage side, and improves power supply reliability and power quality. The optional power distribution automation equipment and intelligent sensing terminals can realize intelligent management and condition maintenance of the distribution station area . The terminal of the station has the function of collecting and remote transmission of analog and state quantities, and has the function of on-site control of the switch, which can set the action value locally or remotely. Isolate the fault. Intelligent power distribution terminal, the intelligent power distribution terminal of this device, integrates the functions of existing multiple devices, and can collect operating information such as power transformers, incoming and outgoing line switches, residual current action protectors, smart energy meters, etc. Information collection, with the ability to complete distribution transformer meter monitoring, residual current action protector monitoring, status monitoring, load management, dynamic reactive power compensation/three-phase unbalance control/harmonic control, safety protection, interactive management, asset Management, video surveillance, environmental monitoring and distributed power access management and other functions.
为实现上述目的本发明的技术方案是：一种一体化智能组合变电站，其安装于地面或离地安装于杆上，包括户外一体化智能组合电器、变压器、综合智能配电箱或配变低压保护开关箱、中压电缆附件，所述户外一体化智能组合电器安装在变压器的正上方；所述综合智能配电箱或配变低压保护开关箱固定安装在变压器的低压端子一侧；户外一体化智能组合电器的进线端与中压电缆附件的高压电缆进线连接、出线端与中压电缆附件的高压电缆连接线连接；所述中压电缆附件的高压电缆连接线的另一端与变压器的高压套管连接，变压器的低压端与综合智能配电箱或配变低压保护开关箱连接。 In order to achieve the above object, the technical solution of the present invention is: an integrated intelligent combined substation, which is installed on the ground or on a pole off the ground, including outdoor integrated intelligent combined electrical appliances, transformers, comprehensive intelligent distribution boxes or low-voltage distribution transformers Protection switch box and medium-voltage cable accessories, the outdoor integrated intelligent combined electrical appliance is installed directly above the transformer; the integrated intelligent distribution box or distribution transformer low-voltage protection switch box is fixed and installed on the side of the low-voltage terminal of the transformer; outdoor integrated The incoming line end of the intelligent combined electrical appliance is connected to the high-voltage cable incoming line of the medium-voltage cable accessory, and the outgoing line is connected to the high-voltage cable connecting line of the medium-voltage cable accessory; the other end of the high-voltage cable connecting line of the medium-voltage cable accessory is connected to the transformer The high-voltage bushing connection of the transformer is connected, and the low-voltage end of the transformer is connected with the comprehensive intelligent distribution box or the distribution transformer low-voltage protection switch box.
优选的是，所述户外一体化智能组合电器包括，户外三工位弹簧储能机构、三工位负荷开关、单相熔仓、限流熔断器、避雷器灭弧线圈及中压电缆附件组成。 Preferably, the outdoor integrated intelligent combined electrical appliance includes an outdoor three-position spring energy storage mechanism, a three-position load switch, a single-phase melting bin, a current-limiting fuse, a lightning arrester arc-extinguishing coil, and medium-voltage cable accessories. .
在上述任一方案中优选的是，所述户外一体化智能组合电器包括，隔离开关、真空断路器、避雷器和中压电缆附件组成。 In any of the above-mentioned schemes, preferably, the outdoor integrated intelligent combined electrical appliance includes an isolating switch, a vacuum circuit breaker, a lightning arrester and medium-voltage cable accessories.
在上述任一方案中优选的是，所述变压器为油浸式电力变压器。 In any of the above schemes, preferably, the transformer is an oil-immersed power transformer.
在上述任一方案中优选的是，所述户外一体化智能组合电器的高压侧采用三工位负荷开关加限流熔断器的组合方式，当发生一相熔断时，用熔断器的撞针使负荷开关的三相同时分闸。 In any of the above schemes, it is preferred that the high-voltage side of the outdoor integrated intelligent combined electrical appliance adopts a combination of a three-position load switch and a current-limiting fuse. The three phases of the switch are simultaneously opened.
在上述任一方案中优选的是， 所述综合智能配电箱或配变低压保护开关箱，由熔断器式隔离开关或框架断路器或塑壳断路器、智能电容器组或智能调补电容器组、智能配电终端等组成，满足低压侧保护和多路低压出线的要求。 In any of the above schemes, it is preferred that the integrated intelligent distribution box or distribution transformer low-voltage protection switch box is composed of a fuse-type isolating switch or a frame circuit breaker or a molded case circuit breaker, an intelligent capacitor bank or an intelligent adjustment and compensation capacitor bank , intelligent power distribution terminal, etc., to meet the requirements of low-voltage side protection and multiple low-voltage outlets.
在上述任一方案中优选的是，所述综合智能配电箱或配变低压保护开关箱与变压器通过螺栓可拆卸的连接为一体结构。 In any of the above schemes, it is preferable that the integrated intelligent distribution box or the distribution transformer low-voltage protection switch box and the transformer are detachably connected by bolts as an integral structure.
在上述任一方案中优选的是，综合智能配电箱或配变低压保护开关箱为一体式矩形箱体结构。 In any of the above schemes, it is preferable that the integrated intelligent distribution box or the distribution transformer low-voltage protection switch box is of an integrated rectangular box structure.
在上述任一方案中优选的是，户外一体化智能组合电器通过其底部的底座安装在变压器的顶部。 In any of the above schemes, preferably, the outdoor integrated intelligent combined electrical appliance is installed on the top of the transformer through the base at the bottom.
在上述任一方案中优选的是，所述框架外壳前后左右每面都具有两个箱门且框架外壳的四个底脚上设有安装支架。 In any of the above schemes, it is preferable that each of the front, rear, left, and right sides of the frame shell has two doors, and the four feet of the frame shell are provided with mounting brackets.
在上述任一方案中优选的是，所述框架外壳的两侧均设有通风口。 In any of the above schemes, it is preferred that vents are provided on both sides of the frame housing.
在上述任一方案中优选的是，户外一体化智能组合电器的外壳顶部设有提拉装置。 In any of the above schemes, it is preferable that a lifting device is provided on the top of the casing of the outdoor integrated intelligent combined electrical appliance.
在上述任一方案中优选的是，所述提拉装置为提拉环且数量为两个。 In any of the above schemes, it is preferred that the lifting device is two lifting rings.
在上述任一方案中优选的是，所述两个提拉环通过螺栓与户外一体化智能组合电器的外壳顶部固定连接。 In any of the above schemes, it is preferable that the two lifting rings are fixedly connected to the top of the shell of the outdoor integrated intelligent combined electrical appliance through bolts.
与现有技术相比本发明的优点在于：一体化、智能化、组合式变电站实现整个配电台区的标准化设计，工厂化加工：实现配电台区建设真正的全工厂预制现场组装，减少了建设周期和施工成本，实现了一次设备（负荷开关、熔断器、避雷器和电力变压器）接口标准化，生产资料重复利用率高；实现整个配电台区的全绝缘，全密封，全屏蔽：可触摸，体积小，拆装简便，解决了带电导体裸露带来的安全隐患；提升整个配电台区施工工艺和施工安全水平：户外三工位负荷开关和五防联锁设计，将大大提高带电作业者的人身安全；实现整个配电台区配电自动化，改善运维水平；实现整个配电台区拓展功能模块化选装。 Compared with the prior art, the present invention has the advantages of: the integrated, intelligent, and combined substation realizes the standardized design of the entire distribution substation, and factory processing: realizes the real factory prefabricated on-site assembly of the distribution substation construction, reducing The construction period and construction cost are shortened, the interface standardization of primary equipment (load switch, fuse, lightning arrester and power transformer) is realized, and the reuse rate of production materials is high; the whole distribution station area is fully insulated, fully sealed, and fully shielded: it can be Touch, small size, easy disassembly and assembly, which solves the potential safety hazard caused by exposed live conductors; improves the construction technology and construction safety level of the entire distribution station area: the outdoor three-station load switch and five-proof interlock design will greatly improve the liveliness. The personal safety of the operator; realize the distribution automation of the entire distribution station area, improve the operation and maintenance level; realize the modularization of the expansion function of the entire distribution station area.
附图说明 Description of drawings
图1为按照本发明的一体化智能组合变电站一优选实施例的主视结构示意图。 Fig. 1 is a schematic diagram of the front view of a preferred embodiment of the integrated intelligent combined substation according to the present invention.
图2为按照本发明的一体化智能组合变电站图1所示实施例的侧视结构示意图。 Fig. 2 is a schematic side view of the embodiment shown in Fig. 1 of the integrated intelligent combined substation according to the present invention.
图3为按照本发明的一体化智能组合变电站图1所示实施例的俯视结构示意图。 Fig. 3 is a top view structural diagram of the embodiment shown in Fig. 1 of the integrated intelligent combined substation according to the present invention.
图4为按照本发明的一体化智能组合变电站一优选实施例中框架外壳的主视结构示意图。 Fig. 4 is a front structural schematic diagram of a frame shell in a preferred embodiment of an integrated intelligent combined substation according to the present invention.
图5为按照发明的一体化智能组合变电站图4所示实施例的俯视结构示意图。 Fig. 5 is a top view structural diagram of the embodiment shown in Fig. 4 of the integrated intelligent combined substation according to the invention.
图6为按照本发明的一体化智能组合变电站的柱上式安装结构示意图。 Fig. 6 is a schematic diagram of the pole-mounted installation structure of the integrated intelligent combined substation according to the present invention.
具体实施方式 Detailed ways
下面结合附图对本发明的有优选实施例作进一步阐述说明； Below in conjunction with accompanying drawing, preferred embodiment of the present invention is described further;
实施例1： Example 1:
如图1-6所示，公开了本发明的一种一体化智能组合变电站，该一体化智能组合变电站采用柱上式安装，其低压电缆采用地下出线。包括户外一体化智能组合电器1、变压器2、综合智能配电箱或配变低压保护开关箱3、中压电缆附件，所述户外一体化智能组合电器1安装在变压器2的正上方；具体是，户外一体化智能组合电器1通过其底部的底座安装在变压器2的顶部。 As shown in Figures 1-6, an integrated intelligent combined substation of the present invention is disclosed. The integrated intelligent combined substation is installed on a pole, and its low-voltage cables use underground outlets. Including outdoor integrated intelligent combined electrical appliance 1, transformer 2, comprehensive intelligent distribution box or distribution transformer low-voltage protection switch box 3, medium voltage cable accessories, the outdoor integrated intelligent combined electrical appliance 1 is installed directly above the transformer 2; specifically , the outdoor integrated intelligent combined electrical appliance 1 is installed on the top of the transformer 2 through the base at the bottom thereof.
所述综合配电箱或配变低压保护开关箱3固定安装在变压器2的低压端子一侧；户外一体化智能组合电器1的进线端与中压电缆附件的高压电缆进线4连接、出线端与中压电缆附件的高压电缆连接线5连接；所述中压电缆附件的高压电缆连接线4的另一端与变压器2的高压套管连接，变压器2的低压端与综合智能配电箱或配变低压保护开关箱3连接。在本实施例中，所述变压器为油浸式电力变压器。所述户外一体化智能组合电器1包括，户外三工位弹簧储能机构、三工位负荷开关、单相熔仓、限流熔断器、避雷器灭弧线圈及中压电缆附件组成。所述户外一体化智能组合电器1的高压侧采用三工位负荷开关加限流熔断器的组合方式，当发生一相熔断时，用熔断器的撞针使负荷开关的三相同时分闸。所述综合智能配电箱或配变低压保护开关箱3，由熔断器式隔离开关或框架断路器或塑壳断路器、智能电容器组或智能调补电容器组、智能配电终端等组成，满足低压侧保护和多路低压出线的要求。所述综合智能配电箱或配变低压保护开关箱3与变压器2通过螺栓可拆卸的连接为一体结构。综合智能配电箱或配变低压保护开关箱3为一体式矩形箱体结构。 The comprehensive distribution box or the low-voltage protection switch box 3 of the distribution transformer is fixedly installed on the low-voltage terminal side of the transformer 2; The other end of the high-voltage cable connection 4 of the medium-voltage cable accessory is connected to the high-voltage bushing of the transformer 2, and the low-voltage end of the transformer 2 is connected to the integrated intelligent distribution box or The distribution transformer low-voltage protection switch box 3 is connected. In this embodiment, the transformer is an oil-immersed power transformer. The outdoor integrated intelligent combined electrical appliance 1 includes an outdoor three-position spring energy storage mechanism, a three-position load switch, a single-phase melting bin, a current-limiting fuse, a lightning arrester arc-extinguishing coil, and medium-voltage cable accessories. The high-voltage side of the outdoor integrated intelligent combination appliance 1 adopts a combination of a three-position load switch and a current-limiting fuse. When a one-phase fuse occurs, the striker of the fuse is used to open the three phases of the load switch. The comprehensive intelligent distribution box or distribution transformer low-voltage protection switch box 3 is composed of a fuse-type isolating switch or a frame circuit breaker or a molded case circuit breaker, an intelligent capacitor bank or an intelligent adjustment and compensation capacitor bank, and an intelligent power distribution terminal to meet the requirements of Requirements for low-voltage side protection and multiple low-voltage outlets. The integrated intelligent distribution box or the distribution transformer low-voltage protection switch box 3 and the transformer 2 are detachably connected by bolts to form an integrated structure. The comprehensive intelligent distribution box or distribution transformer low-voltage protection switch box 3 is an integrated rectangular box structure.
在本实施例中，所述框架外壳结构为前后左右每面具有两个对开的箱门，框架外壳的四个底脚上均设有安装支架。所述安装支架用于固定所述框架外壳。在所述框架外壳的两侧均设有通风口。 户外一体化智能组合电器1的外壳顶部设有提拉装置。所述提拉装置为提拉环且数量为两个，提拉环均匀分设在外壳顶部平面。所述两个提拉环通过螺栓或通过焊接的方式与户外一体化智能组合电器的外壳顶部固定连接。 In this embodiment, the structure of the frame shell is that there are two opposite doors on each side of the front, rear, left, and right sides, and the four feet of the frame shell are provided with mounting brackets. The mounting bracket is used to fix the frame shell. Vents are provided on both sides of the frame housing. The top of the casing of the outdoor integrated intelligent combined electrical appliance 1 is provided with a lifting device. The lifting device is two lifting rings, and the lifting rings are evenly distributed on the top plane of the shell. The two lifting rings are fixedly connected to the top of the shell of the outdoor integrated intelligent combined electrical appliance by means of bolts or welding.
本发明的一体化智能组合变电站，从方便设计及安装的角度出发，整体采用一体化的组装结构设计，并能够实现装置的全绝缘、全屏蔽及全密封，从而解决集约化采购困难、安全性差和互换性差等问题；从方便后期运维管理、扩容等角度出发，内部设计采用结构功能模块化方案和一二次融合的智能感知技术，实现“一次需求一次满足”的一站式配电台区建设新模式，从而解决功能集成及互动化等问题。采用户外三工位负荷开关加限流熔断器保护，采用SF6气体绝缘和灭弧，外加灭弧线圈方案；隔离开关和断路器保护，采用固体绝缘和真空灭弧方案。同时，设计了户外三工位弹簧储能操作机构，可由令克棒进行户外操作，一次操作即可完成负荷开关合闸和储能，三工位负荷开关整合了负荷开关和接地开关两者的功能，并由一体式负荷开关来完成，这样可以实现机械闭锁，防止主回路带电合地刀。与现有技术相比，本发明具有一体化、智能化、组合式特点，实现整个配电台区的标准化设计，实现了配电台区建设真正的全工厂预制现场组装，减少了建设周期和施工成本，实现了一次设备（负荷开关、熔断器、避雷器和电力变压器）接口标准化，生产资料重复利用率高；实现整个配电台区的全绝缘，全密封，全屏蔽：可触摸，体积小，拆装简便，解决了带电导体裸露带来的安全隐患；提升整个配电台区施工工艺和施工安全水平：户外三工位负荷开关和五防联锁设计，将大大提高带电作业者的人身安全；实现整个配电台区配电自动化，改善运维水平；实现整个配电台区拓展功能模块化选装。本发明的户外一体化智能组合电器有两种类型：其一是，采用户外三工位负荷开关加限流熔断器保护，其主要是由户外三工位弹簧储能操作机构、三工位负荷开关、单相熔仓、限流熔断器、避雷器、灭弧线圈和中压电缆附件组成；户外一体化智能组合电器当高压侧采用户外三工位负荷开关加限流熔断器保护，发生一相熔断器熔断时，用熔断器的撞针使负荷开关三相同时分闸，避免缺相运行，负荷开关具有切断转移电流的能力。户外一体化智能组合电器中选配的配电自动化设备和智能感知终端，可实现配电台区的智能化管理。电力变压器采用体积较小的油浸式电力变压器，其高低压端子与户外一体化智能组合电器的高压进出线都进行了接口标准化设计，可实现高低压侧模块化组装，从而实现一体化智能组合变电站的全绝缘、全屏蔽和全密封。综合智能配电箱或配变低压保护开关箱，主要由熔断器式隔离开关或框架断路器或塑壳断路器、智能电容器组或智能调补电容器组和各种智能配电终端等组成，满足低压侧保护和多路低压出线的要求。所述三工位负荷开关，由三工位弹簧储能操作机构、三工位负荷开关、灭弧线圈和指示装置组成。户外三工位弹簧储能操作机构可由令克棒进行户外操作，一次操作即可完成负荷开关合闸和储能，三工位负荷开关整合了负荷开关和接地开关两者的功能，并由一体式负荷开关来完成，这样可以实现机械闭锁，防止主回路带电合地刀。 The integrated intelligent combined substation of the present invention, from the perspective of convenient design and installation, adopts an integrated assembly structure design as a whole, and can realize full insulation, full shielding and full sealing of the device, thereby solving the difficulty of intensive procurement and poor safety and poor interchangeability; from the perspective of convenient later operation and maintenance management, capacity expansion, etc., the internal design adopts the structural function modularization scheme and the intelligent perception technology of primary and secondary integration to realize the one-stop power distribution of "one-time demand and one-time satisfaction". A new model for the construction of the station area, so as to solve the problems of functional integration and interaction. Outdoor three-position load switch plus current-limiting fuse protection, SF6 gas insulation and arc extinguishing, plus arc extinguishing coil scheme; isolation switch and circuit breaker protection, solid insulation and vacuum arc extinguishing scheme. At the same time, an outdoor three-position spring energy storage operating mechanism is designed, which can be operated outdoors by a gram stick, and the load switch closing and energy storage can be completed in one operation. The three-position load switch integrates the functions of both the load switch and the grounding switch. The function is completed by an integrated load switch, which can realize mechanical locking and prevent the main circuit from being electrified and closing the ground knife. Compared with the existing technology, the present invention has the characteristics of integration, intelligence and combination, realizes the standardized design of the whole distribution station area, realizes the real whole factory prefabricated field assembly in the construction of the distribution station area, reduces the construction period and The construction cost has realized the standardization of the interface of primary equipment (load switch, fuse, lightning arrester and power transformer), and the reuse rate of production materials is high; the whole distribution station area has been fully insulated, fully sealed and fully shielded: touchable and small in size , easy to disassemble and assemble, which solves the potential safety hazard caused by exposed live conductors; improves the construction technology and construction safety level of the entire distribution station area: the outdoor three-position load switch and five-proof interlock design will greatly improve the personal safety of live workers Safety; realize the distribution automation of the entire distribution station area, improve the operation and maintenance level; realize the expansion function modularization of the entire distribution station area. There are two types of outdoor integrated intelligent combined electrical appliances of the present invention: one is that the outdoor three-position load switch plus current-limiting fuse is used for protection, which is mainly composed of an outdoor three-position spring energy storage operating mechanism and a three-position load switch. Switch, single-phase melting bin, current-limiting fuse, lightning arrester, arc-extinguishing coil and medium-voltage cable accessories; when the high-voltage side of the outdoor integrated intelligent combined electrical appliance is protected by an outdoor three-position load switch plus a current-limiting fuse, a When the phase fuse is blown, use the striker of the fuse to open the load switch in three phases at the same time, so as to avoid the lack of phase operation, and the load switch has the ability to cut off the transfer current. The distribution automation equipment and intelligent sensing terminal selected in the outdoor integrated intelligent combined electrical appliances can realize the intelligent management of the distribution station area. The power transformer adopts a small oil-immersed power transformer. The high-voltage and low-voltage terminals and the high-voltage incoming and outgoing lines of the outdoor integrated intelligent combined electrical appliance have been designed in a standardized interface, which can realize the modular assembly of the high and low voltage sides, so as to realize the integrated intelligent combination Fully insulated, fully shielded and fully sealed for substations. The comprehensive intelligent distribution box or distribution transformer low-voltage protection switch box is mainly composed of fuse type isolating switch or frame circuit breaker or molded case circuit breaker, intelligent capacitor bank or intelligent adjustment capacitor bank and various intelligent power distribution terminals, etc. Requirements for low-voltage side protection and multiple low-voltage outlets. The three-position load switch is composed of a three-position spring energy storage operating mechanism, a three-position load switch, an arc extinguishing coil and an indicating device. The outdoor three-position spring energy storage operating mechanism can be operated outdoors by the gram rod, and the load switch closing and energy storage can be completed in one operation. The three-position load switch integrates the functions of the load switch and the grounding switch, and is integrated It can be completed with a type load switch, which can realize mechanical locking and prevent the main circuit from being electrified and closing the ground.
工作过程 work process
一、户外一体化智能组合电器的上电过程为： 1. The power-on process of the outdoor integrated intelligent combined electrical appliance is as follows:
1、确认户外一体化智能组合电器的右门关闭、接地开关处于合闸位置，指示针指在接地位； 1. Confirm that the right door of the outdoor integrated intelligent combination appliance is closed, the grounding switch is in the closing position, and the indicator needle is in the grounding position;
2、下拉接地开关操作杆的左侧，接地开关分闸，指示针指在分闸位，户外一体化智能组合电器的右门无法打开； 2. Pull down the left side of the grounding switch operating lever, the grounding switch is off, the indicator needle is at the off position, and the right door of the outdoor integrated intelligent combination appliance cannot be opened;
3、往复下拉合闸储能操作杆，直至负荷开关合闸同时完成储能操作，指示针指在合闸位，上电过程结束。 3. Pull down the closing energy storage operating lever back and forth until the load switch is closed and the energy storage operation is completed at the same time, the indicator needle is at the closing position, and the power-on process is over.
二、户外一体化智能组合电器的断电过程为： 2. The power-off process of outdoor integrated intelligent combined electrical appliances is as follows:
1、将分闸操作杆向上推，负荷开关分闸，指示针指在分闸位，已断电； 1. Push the opening operating lever upwards, the load switch will open, and the indicator needle will be at the opening position, indicating that the power has been cut off;
2、检修维护时下拉接地开关操作杆右侧，接地开关合闸，指示针指在接地位，此时户外一体化智能组合电器的右门打开，可进行更换熔断器等操作。 2. During inspection and maintenance, pull down the right side of the grounding switch operating lever, the grounding switch is closed, and the indicator needle is at the grounding position. At this time, the right door of the outdoor integrated intelligent combination appliance is opened, and operations such as replacing the fuse can be performed.
再次参见图1-6，在本实施例中，所述一体化智能组合变电站通过两根双杆支持架19固定安装在混凝土电杆之上，并通过4根斜撑24进行加强支撑，所述混凝土电杆安装在两个底盘29之上。所述变压器通过两根变压器固定支架26与双杆支持架19固定连接，在所述混凝土电杆上安装有三根氧化锌避雷器13，低压电缆25通过玻璃钢电缆保护管28进行保护，单芯互绞架空绝缘柔性电缆15通过 第一抱箍6、第一高压横担第二抱箍8、第二高压横担9、第三抱箍18进行固定。 两根双杆支持架19通过两个支撑抱箍20进行支撑。第四抱箍21、第五抱箍22、横担抱箍23、第六抱箍27用于固定低压电缆25固定在所述混凝土电杆上。 Referring again to Figures 1-6, in this embodiment, the integrated intelligent combined substation is fixedly installed on the concrete pole through two double-pole support frames 19, and is reinforced by four diagonal braces 24. Concrete poles are mounted on two chassis 29 . The transformer is fixedly connected to the double pole support frame 19 through two transformer fixing brackets 26, and three zinc oxide lightning arresters 13 are installed on the concrete pole, and the low-voltage cable 25 is protected by a glass fiber reinforced plastic cable protection tube 28, and the single cores are intertwined The overhead insulated flexible cable 15 is fixed by the first hoop 6, the first high-voltage cross-arm second hoop 8, the second high-voltage cross-arm 9, and the third hoop 18. Two double-bar support frames 19 are supported by two support hoops 20. The fourth hoop 21, the fifth hoop 22, the cross-arm hoop 23, and the sixth hoop 27 are used to fix the low-voltage cable 25 on the concrete pole.
实施例2： Example 2:
在本实施例中与实施例1所不同的是：户外一体化智能组合电器采用隔离开关和真空断路器保护，其主要是由隔离开关、真空断路器、避雷器和中压电缆附件组成。 The difference between this embodiment and Embodiment 1 is that the outdoor integrated intelligent combined electrical appliance is protected by an isolating switch and a vacuum circuit breaker, which is mainly composed of an isolating switch, a vacuum circuit breaker, a lightning arrester and medium-voltage cable accessories.
需要说明的是，本发明的一体化智能组合变电站方案的范畴包括但不限于上述各部分之间的任意组合。 It should be noted that the scope of the integrated intelligent combined substation solution of the present invention includes but is not limited to any combination of the above-mentioned parts.
尽管具体地参考其优选实施例来示出并描述了本发明，但本领域的技术人员可以理解，可以做出形式和细节上的各种改变而不脱离所附权利要求书中所述的本发明的范围。以上结合本发明的具体实施例做了详细描述，但并非是对本发明的限制。凡是依据本发明的技术实质对以上实施例所做的任何简单修改，均仍属于本发明技术方案的范围。 Although the invention has been shown and described with particular reference to preferred embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made without departing from the invention as set forth in the appended claims. the scope of the invention. The above has been described in detail in conjunction with specific embodiments of the present invention, but is not intended to limit the present invention. Any simple modification made to the above embodiments according to the technical essence of the present invention still belongs to the scope of the technical solution of the present invention.
Claims (10)
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| CN107591720A (en) * | 2017-09-15 | 2018-01-16 | 江苏其厚智能电气设备有限公司 | Intelligent substation on integrated post |
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Denomination of invention: An integrated intelligent combination substation Granted publication date: 20170419 Pledgee: Zheshang Bank Co.,Ltd. Nanjing Branch Pledgor: JIANGSU QIHOU INTELLIGENT ELECTRICAL EQUIPMENT CO.,LTD. Registration number: Y2024980050735 |