CN114843920A - Split-type prefabricated substation with high-voltage circuit breakers - Google Patents

Split-type prefabricated substation with high-voltage circuit breakers Download PDF

Info

Publication number
CN114843920A
CN114843920A CN202111142529.3A CN202111142529A CN114843920A CN 114843920 A CN114843920 A CN 114843920A CN 202111142529 A CN202111142529 A CN 202111142529A CN 114843920 A CN114843920 A CN 114843920A
Authority
CN
China
Prior art keywords
voltage
room
transformer
low
circuit breaker
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202111142529.3A
Other languages
Chinese (zh)
Inventor
宗克柱
张乾
许晨
高启蛟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tbea Shandong Shenbian Electrical Equipment Co ltd
Original Assignee
Tbea Shandong Shenbian Electrical Equipment Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tbea Shandong Shenbian Electrical Equipment Co ltd filed Critical Tbea Shandong Shenbian Electrical Equipment Co ltd
Priority to CN202111142529.3A priority Critical patent/CN114843920A/en
Publication of CN114843920A publication Critical patent/CN114843920A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B7/00—Enclosed substations, e.g. compact substations
    • H02B7/06—Distribution substations, e.g. for urban network
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/56—Cooling; Ventilation
    • H02B1/565—Cooling; Ventilation for cabinets
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy
    • Y02E10/56—Power conversion systems, e.g. maximum power point trackers

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Gas-Insulated Switchgears (AREA)

Abstract

本发明涉及一种变电站，特别涉及一种高压断路器分体布置预装式变电站。包括变压器室、高压室及低压室，其中高压室和低压室并列设置于变压器室的前侧；变压器室内设有变压器，变压器室的前侧设有分别与高压室及低压室连接的高压套管和低压套管，在变压器室的两侧及后侧均设有散热片；高压室内通过绝缘板隔离为检修室和电缆室，检修室内设置高压电流互感器和高压电压互感器，高压电流互感器和高压电压互感器均与由高压套管引出的高压电缆连接；电缆室内设置接地开关、隔离开关及真空断路器。本发明将低压室和高压室并排布置，减小箱变的长度，方便箱变的吊装和运输；变压器的散热片布置位置大大的增加了自然通风效率。

Figure 202111142529

The invention relates to a substation, in particular to a prefabricated substation with a split arrangement of high-voltage circuit breakers. It includes a transformer room, a high-voltage room and a low-voltage room, wherein the high-voltage room and the low-voltage room are arranged in parallel on the front side of the transformer room; the transformer room is provided with a transformer, and the front side of the transformer room is provided with high-voltage bushings connected to the high-voltage room and the low-voltage room respectively There are heat sinks on both sides and the back side of the transformer room; the high-voltage room is separated into an inspection room and a cable room by an insulating plate, and high-voltage current transformers, high-voltage voltage transformers, and high-voltage current transformers are installed in the inspection room. Both the high-voltage transformer and the high-voltage voltage transformer are connected with the high-voltage cable drawn from the high-voltage bushing; the grounding switch, isolating switch and vacuum circuit breaker are arranged in the cable room. The invention arranges the low-voltage chamber and the high-voltage chamber side by side, reduces the length of the box transformer, and facilitates the hoisting and transportation of the box transformer; the arrangement position of the radiating fins of the transformer greatly increases the natural ventilation efficiency.

Figure 202111142529

Description

Split-type prefabricated substation with high-voltage circuit breakers
Technical Field
The invention relates to a transformer substation, in particular to a preassembled transformer substation with split high-voltage circuit breakers.
Background
The transformer substation commonly used in the domestic new energy industry at present has the following problems: in the domestic wind power and photovoltaic industries, along with the continuous improvement of the capacity of a single machine, the traditional load switch schemes of American transformation and Hua transformation cannot meet the market demand due to the problem of the capacity of a fuse. The application of combination formula vacuum circuit breaker is more and more extensive, but partial user customizes vacuum circuit breaker, isolator, earthing switch respectively, can only adopt split type structure, and its structure becomes with the conventionality magnificent, beautiful variation is great, and the current market conventionality scheme is installed again in the case becomes circuit breaker, isolator, earthing switch are integrated for adopting the high-voltage board, and this kind of structure is complicated, and manufacturing cost is higher.
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide a preassembled transformer substation with high-voltage circuit breakers in a split arrangement, so as to solve the problems of complex structure and high production cost of the existing transformer substation.
In order to achieve the purpose, the invention adopts the following technical scheme:
a preassembled transformer substation with a high-voltage circuit breaker in a split arrangement mode comprises a transformer chamber, a high-voltage chamber and a low-voltage chamber, wherein the high-voltage chamber and the low-voltage chamber are arranged on the front side of the transformer chamber in parallel; a transformer is arranged in the transformer chamber, a high-voltage sleeve and a low-voltage sleeve which are respectively connected with the high-voltage chamber and the low-voltage chamber are arranged on the front side of the transformer chamber, and cooling fins are arranged on the two sides and the rear side of the transformer chamber;
the high-voltage chamber is isolated into an overhaul chamber and a cable chamber by an insulating plate, a high-voltage current transformer and a high-voltage transformer are arranged in the overhaul chamber, and the high-voltage current transformer and the high-voltage transformer are both connected with a high-voltage cable led out by a high-voltage sleeve;
and a grounding switch, an isolating switch and a vacuum circuit breaker are arranged in the cable chamber.
The grounding switch is arranged at the top of the high-pressure chamber, the isolating switch is arranged in the middle of the high-pressure chamber through an installation supporting frame, and the vacuum circuit breaker is arranged at the front end of the high-pressure chamber and close to a door;
the high-voltage current transformer is sequentially connected with the grounding switch, the vacuum circuit breaker and the isolating switch through a high-voltage cable, the isolating switch is provided with a transverse bus bar, and the transverse bus bar is used for being connected with an external cable.
And a high-voltage arrester is arranged at the bottom of the cable chamber and is connected with the high-voltage cable.
And insulators for supporting the high-voltage cables are arranged at the tops of the overhaul chamber and the cable chamber.
An interlocking operation device is arranged at the front end door of the high-pressure chamber;
the grounding switch and the isolating switch are connected with an interlocking operation device through a connecting rod; the vacuum circuit breaker is connected with an interlocking operation device through a pull ring and a steel wire rope, so that mechanical interlocking is formed.
The high-voltage current transformer and the high-voltage transformer are respectively arranged on the upper side and the lower side of the high-voltage bushing.
The overhaul room with be equipped with the electromagnetic lock of electrified display on the door of cable chamber, simultaneously the extra-door is equipped with mechanical lock.
The low-voltage cabinet is arranged in the low-voltage chamber, the low-voltage frame circuit breaker is arranged in the low-voltage cabinet, an upper opening of the low-voltage frame circuit breaker is connected with the low-voltage sleeve through flexible connection, and a lower opening of the low-voltage frame circuit breaker is connected with an external incoming cable through a bus bar.
And an intelligent measurement and control device is also arranged in the low-voltage chamber, and can collect signals of high-voltage side and low-voltage side protection level current transformers to realize differential protection of the transformer.
The invention has the advantages and beneficial effects that: the invention provides a preassembled transformer substation with a split high-voltage circuit breaker, which is characterized in that a finished product is arranged in a shape of a Chinese character 'ji', and a low-voltage chamber and a high-voltage chamber are arranged side by side, so that the length of a box transformer substation is reduced, and the box transformer substation is convenient to hoist and transport; the arrangement position of the radiating fins of the transformer greatly increases the natural ventilation efficiency; the interlocking operation device realizes the five-prevention function; high-voltage circuit breaker, isolator, earthing switch directly arrange in the case becomes the high-pressure chamber, no longer separate into the cabinet, reduce the manufacturing cost that the case becomes, improve the market competition that the case becomes.
Drawings
Fig. 1 is a front view of a preassembled transformer substation with a high-voltage circuit breaker arranged in a split manner according to the present invention;
fig. 2 is a top view of a preassembled transformer substation with a split high-voltage circuit breaker according to the present invention;
in the figure: 1. the transformer comprises a grounding switch, 2 insulators, 3 high-voltage current transformers, 4 transformers, 5 cooling fins, 6 low-voltage bushings, 7 high-voltage bushings, 8 high-voltage transformers, 9 high-voltage arresters, 10 isolating switches, 11 vacuum circuit breakers, 12 interlocking operation devices, 13 low-voltage chambers, 14 maintenance chambers and 15 cable chambers.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1-2, the preassembled transformer substation with the high-voltage circuit breaker in the split arrangement comprises a transformer chamber, a high-voltage chamber and a low-voltage chamber 13, wherein the high-voltage chamber and the low-voltage chamber 13 are arranged in parallel at the front side of the transformer chamber and are arranged in a finished product shape; a transformer 4 is arranged in the transformer chamber, a high-voltage sleeve 7 and a low-voltage sleeve 6 which are respectively connected with a high-voltage chamber and a low-voltage chamber 13 are arranged on the front side of the transformer chamber, and cooling fins 5 are arranged on the two sides and the rear side of the transformer chamber, so that the natural ventilation efficiency can be greatly increased; the high-voltage chamber is isolated into an overhaul chamber 14 and a cable chamber 15 by an insulating plate, a high-voltage current transformer 3 and a high-voltage transformer 8 are arranged in the overhaul chamber 14, and the high-voltage current transformer 3 and the high-voltage transformer 8 are both connected with a high-voltage cable led out by a high-voltage sleeve 7, so that current and voltage signals can be acquired; the earthing switch 1, the disconnecting switch 10 and the vacuum circuit breaker 11 are arranged in the cable chamber 15.
As shown in fig. 1, in the embodiment of the present invention, an earthing switch 1 is disposed on the top of a high-pressure chamber, and a disconnecting switch 10 is disposed in the middle of the high-pressure chamber through a mounting support frame, specifically, the mounting support frame is made of angle steel. The vacuum circuit breaker 11 is arranged at the front end of the high-pressure chamber close to the door; the high-voltage current transformer 3 is connected with the grounding switch 1, the vacuum circuit breaker 11 and the isolating switch 10 in sequence through high-voltage cables, the isolating switch 10 is provided with a transverse bus bar, and the transverse bus bar is used for being connected with an external cable. In this embodiment, horizontal busbar can satisfy three high tension cable business turn over lines.
Further, a high voltage arrester 9 is arranged at the bottom of the cable chamber 15, and the high voltage arrester 9 is connected with a high voltage cable. The top of the service room 14 and the cable room 15 is provided with an insulator 2 for supporting a high voltage cable.
In the embodiment of the invention, an interlocking operation device 12 is arranged at the front end door of the high-pressure chamber; the grounding switch 1 and the isolating switch 10 are connected with an interlocking operation device 12 through a connecting rod; the vacuum interrupter 11 is connected to the interlock operating device 12 by a pull-tab or a wire rope, thereby forming a mechanical interlock.
In the embodiment of the invention, the high-voltage current transformer 3 and the high-voltage transformer 8 are respectively arranged on the upper side and the lower side of the high-voltage bushing 7.
Furthermore, electromagnetic locks with electric displays are arranged on the doors of the overhaul room 14 and the cable room 15, and meanwhile, mechanical locks are additionally arranged outside the doors. When the 35kV side is electrified, the high-voltage chamber door cannot be opened, and the mechanical lock is additionally arranged on the outer door of the pre-installed substation. The side surface of the box transformer substation can complete the power supply and power failure operation of the high-voltage chamber, and five-prevention interlocking can be realized. And a special grounding terminal is arranged on the opposite angle of the box transformer substation base, and the grounding terminal is a copper bolt with the diameter not smaller than 12 mm.
As shown in fig. 2, in the embodiment of the present invention, a low-voltage cabinet, an auxiliary transformer, a UPS, a lower manhole, and the like are disposed in the low-voltage chamber 13, a low-voltage frame breaker is disposed in the low-voltage cabinet, an upper port of the low-voltage frame breaker is connected to the low-voltage bushing 6 through a flexible connection, and a lower port of the low-voltage frame breaker is connected to an external incoming cable through a bus bar.
Furthermore, an intelligent measurement and control device is arranged in the low-voltage chamber 13, and the intelligent measurement and control device can collect signals of high-voltage side protection level current transformers and low-voltage side protection level current transformers, so that differential protection of the transformer is realized, and various interphase short-circuit faults occurring in the transformer winding and on the leading-out wires of the transformer winding are mainly protected.
The invention relates to a prefabricated substation capable of directly arranging a vacuum circuit breaker, a disconnecting switch and a grounding switch, which is applicable to a new energy operation field in various aspects of structural arrangement, operation environment, voltage grade adaptation, mechanical and electrical protection and the like. The high-voltage chamber is divided into a high-voltage cable chamber and an overhaul chamber, and the cable chamber is isolated from the overhaul chamber by adopting an insulating plate, so that the high-voltage current transformer and the voltage transformer can be overhauled by a current collecting circuit without stopping; the transformer adopts a non-excitation transformer and is suitable for 35kV wind power and photovoltaic projects. The transformer substation provided by the invention has the advantages of simple structure and low production cost.
The above description is only an embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, improvement, extension, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.

Claims (9)

1.一种高压断路器分体布置预装式变电站，其特征在于，包括变压器室、高压室及低压室(13)，其中高压室和低压室(13)并列设置于变压器室的前侧；变压器室内设有变压器(4)，变压器室的前侧设有分别与高压室及低压室(13)连接的高压套管(7)和低压套管(6)，在变压器室的两侧及后侧均设有散热片(5)；1. A high-voltage circuit breaker split arrangement prefabricated substation, characterized in that it comprises a transformer room, a high-voltage room and a low-voltage room (13), wherein the high-voltage room and the low-voltage room (13) are arranged in parallel on the front side of the transformer room; A transformer (4) is arranged in the transformer room, and a high-voltage bushing (7) and a low-voltage bushing (6) are respectively connected to the high-voltage room and the low-voltage room (13) on the front side of the transformer room. Both sides are provided with cooling fins (5); 高压室内通过绝缘板隔离为检修室(14)和电缆室(15)，检修室(14)内设置高压电流互感器(3)和高压电压互感器(8)，高压电流互感器(3)和高压电压互感器(8)均与由高压套管(7)引出的高压电缆连接；The high-voltage room is separated into a maintenance room (14) and a cable room (15) by an insulating plate, and a high-voltage current transformer (3) and a high-voltage voltage transformer (8) are arranged in the maintenance room (14), and the high-voltage current transformer (3) and The high-voltage voltage transformers (8) are all connected with the high-voltage cables drawn from the high-voltage bushing (7); 电缆室(15)内设置接地开关(1)、隔离开关(10)及真空断路器(11)。A grounding switch (1), an isolating switch (10) and a vacuum circuit breaker (11) are arranged in the cable room (15). 2.根据权利要求1所述的高压断路器分体布置预装式变电站，其特征在于，所述接地开关(1)设置于所述高压室的顶部，所述隔离开关(10)通过安装支撑架设置于所述高压室的中部，所述真空断路器(11)设置于所述高压室的前端靠近门处；2 . The prefabricated substation with split arrangement of high-voltage circuit breakers according to claim 1 , wherein the grounding switch ( 1 ) is arranged on the top of the high-voltage chamber, and the isolating switch ( 10 ) is supported by installation. 3 . The rack is arranged in the middle of the high-voltage chamber, and the vacuum circuit breaker (11) is arranged at the front end of the high-voltage chamber near the door; 所述高压电流互感器(3)通过高压线缆依次与接地开关(1)、真空断路器(11)及隔离开关(10)连接，隔离开关(10)设有横向汇流排，横向汇流排用于与外部电缆连接。The high-voltage current transformer (3) is sequentially connected with the grounding switch (1), the vacuum circuit breaker (11) and the isolating switch (10) through a high-voltage cable, and the isolating switch (10) is provided with a transverse bus bar, which is used for the transverse bus bar. for connection with external cables. 3.根据权利要求2所述的高压断路器分体布置预装式变电站，其特征在于，所述电缆室(15)的底部设有高压避雷器(9)，高压避雷器(9)与所述高压线缆连接。3. The high-voltage circuit breaker split-arrangement prefabricated substation according to claim 2, characterized in that a high-voltage arrester (9) is provided at the bottom of the cable room (15), and the high-voltage arrester (9) is connected to the high-voltage arrester (9). cable connection. 4.根据权利要求2所述的高压断路器分体布置预装式变电站，其特征在于，所述检修室(14)和所述电缆室(15)的顶部设有用于支撑高压电缆的绝缘子(2)。4. The prefabricated substation with split arrangement of high-voltage circuit breakers according to claim 2, characterized in that, the tops of the maintenance room (14) and the cable room (15) are provided with insulators ( 2). 5.根据权利要求2所述的高压断路器分体布置预装式变电站，其特征在于，所述高压室的前端门处设有联锁操作装置(12)；5. The high-voltage circuit breaker split-arrangement prefabricated substation according to claim 2, wherein an interlocking operating device (12) is provided at the front door of the high-voltage chamber; 所述接地开关(1)和所述隔离开关(10)通连杆与联锁操作装置(12)连接；所述真空断路器(11)通过拉环和钢丝绳与联锁操作装置(12)连接，从而形成机械联锁。The grounding switch (1) and the isolating switch (10) are connected to the interlocking operating device (12) through a connecting rod; the vacuum circuit breaker (11) is connected to the interlocking operating device (12) through a pull ring and a wire rope , thus forming a mechanical interlock. 6.根据权利要求2所述的高压断路器分体布置预装式变电站，其特征在于，所述高压电流互感器(3)和所述高压电压互感器(8)分别设置于所述高压套管(7)的上、下侧。6. The high-voltage circuit breaker split-arrangement prefabricated substation according to claim 2, wherein the high-voltage current transformer (3) and the high-voltage voltage transformer (8) are respectively arranged on the high-voltage sleeve The upper and lower sides of the tube (7). 7.根据权利要求1所述的高压断路器分体布置预装式变电站，其特征在于，所述检修室(14)和所述电缆室(15)的门上设有带电显示器的电磁锁，同时门外加装有机械锁。7. The high-voltage circuit breaker split-arrangement prefabricated substation according to claim 1, characterized in that, the doors of the maintenance room (14) and the cable room (15) are provided with electromagnetic locks with live displays, At the same time, the door is equipped with a mechanical lock. 8.根据权利要求1所述的高压断路器分体布置预装式变电站，其特征在于，所述低压室(13)内设有低压柜，低压柜内布置低压框架断路器，低压框架断路器的上口通过软连接与所述低压套管(6)连接，低压框架断路器下口通过汇流排与外部进线电缆连接。8. The prefabricated substation with separate arrangement of high-voltage circuit breakers according to claim 1, characterized in that a low-voltage cabinet is arranged in the low-voltage chamber (13), and a low-voltage frame circuit breaker is arranged in the low-voltage cabinet, and the low-voltage frame circuit breaker is arranged in the low-voltage cabinet. The upper port of the low-voltage frame circuit breaker is connected to the low-voltage bushing (6) through a flexible connection, and the lower port of the low-voltage frame circuit breaker is connected to the external incoming cable through a bus bar. 9.根据权利要求8所述的高压断路器分体布置预装式变电站，其特征在于，所述低压室(13)内还布置有智能测控装置，智能测控装置可采集高、低压侧保护级电流互感器信号，实现变压器差动保护。9. The prefabricated substation with split arrangement of high-voltage circuit breakers according to claim 8, characterized in that, an intelligent measurement and control device is also arranged in the low-voltage room (13), and the intelligent measurement and control device can collect the protection levels of high and low voltage sides Current transformer signal to realize transformer differential protection.
CN202111142529.3A 2021-09-28 2021-09-28 Split-type prefabricated substation with high-voltage circuit breakers Pending CN114843920A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111142529.3A CN114843920A (en) 2021-09-28 2021-09-28 Split-type prefabricated substation with high-voltage circuit breakers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111142529.3A CN114843920A (en) 2021-09-28 2021-09-28 Split-type prefabricated substation with high-voltage circuit breakers

Publications (1)

Publication Number Publication Date
CN114843920A true CN114843920A (en) 2022-08-02

Family

ID=82561632

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111142529.3A Pending CN114843920A (en) 2021-09-28 2021-09-28 Split-type prefabricated substation with high-voltage circuit breakers

Country Status (1)

Country Link
CN (1) CN114843920A (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101188160A (en) * 2006-11-15 2008-05-28 上海置信电气非晶有限公司 Non crystal alloy single phase oil dipping combined transformer
CN101295860A (en) * 2008-06-19 2008-10-29 江苏省电力公司泰州供电公司 Chamber type communication transforming plant for reducing voltage from 10kV to 0.4kV
CN204497636U (en) * 2015-02-09 2015-07-22 山东泰山电工电器有限公司 A kind of built on stilts inlet wire China used for wind power generation formula case becomes
US20180090913A1 (en) * 2016-09-26 2018-03-29 Bethel Idiculla Johnson Medium voltage switchgear enclosure
CN210669248U (en) * 2019-10-08 2020-06-02 长春工程学院 Prefabricated Substation
CN112467586A (en) * 2019-09-06 2021-03-09 河南森源电气股份有限公司 Box-type substation for wind power generation

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101188160A (en) * 2006-11-15 2008-05-28 上海置信电气非晶有限公司 Non crystal alloy single phase oil dipping combined transformer
CN101295860A (en) * 2008-06-19 2008-10-29 江苏省电力公司泰州供电公司 Chamber type communication transforming plant for reducing voltage from 10kV to 0.4kV
CN204497636U (en) * 2015-02-09 2015-07-22 山东泰山电工电器有限公司 A kind of built on stilts inlet wire China used for wind power generation formula case becomes
US20180090913A1 (en) * 2016-09-26 2018-03-29 Bethel Idiculla Johnson Medium voltage switchgear enclosure
CN112467586A (en) * 2019-09-06 2021-03-09 河南森源电气股份有限公司 Box-type substation for wind power generation
CN210669248U (en) * 2019-10-08 2020-06-02 长春工程学院 Prefabricated Substation

Similar Documents

Publication Publication Date Title
CN207910352U (en) A kind of environment-friendly type nitrogen insulation metal enclosed switch device
CN114156763B (en) Economical switchgear suitable for wind power
CN101662132A (en) 110kV/220kV voltage level composite apparatus and application thereof
CN2836279Y (en) 12KV indoor AC high-voltage sulfur hexafluoride ring network switchgear
CN101013800A (en) Gas-insulated composite switchgear
CN114843920A (en) Split-type prefabricated substation with high-voltage circuit breakers
CN202307657U (en) 126 kV outdoor AC high-voltage isolation switch
CN201797234U (en) Small-sized vacuum ring main unit
CN201629495U (en) Wall-through shielded bushing of high-voltage switchgear cabinet
CN217334734U (en) Fixed high-capacity high-voltage switch equipment
CN204927809U (en) Alternating current high tension switchgear
CN204696521U (en) A kind of preassembled transformer station
CN222381127U (en) Split type box transformer structure of high-voltage circuit breaker
CN213460852U (en) Armored high-voltage switch cabinet capable of being installed against wall
CN221668733U (en) Compact type mixed terminal 145kV composite combined electrical appliance for mobile transformer
CN207166001U (en) High pressure measurement type demarcation switch on post
CN221805262U (en) Wall-mounted miniaturized energy-extraction winding cable junction box
CN217848784U (en) Miniaturized large-capacity 12kV air insulation cabinet with built-in vacuum circuit breaker
CN217427474U (en) Gas insulation switch cabinet
CN220605207U (en) Bus-bar chamber structure of high-voltage switch cabinet
CN202502955U (en) Circuit breaker device
CN204680982U (en) A kind of integrated-type intelligent isolation circuit breakers
CN216085945U (en) Ring main unit and cabinet body thereof
CN220233755U (en) High-voltage switch cabinet
CN217642247U (en) Integrated combined electrical appliance

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20220802

RJ01 Rejection of invention patent application after publication