CN105610080B - A kind of packaged type GIS device and a kind of GIS vehicles - Google Patents

A kind of packaged type GIS device and a kind of GIS vehicles Download PDF

Info

Publication number
CN105610080B
CN105610080B CN201610099112.6A CN201610099112A CN105610080B CN 105610080 B CN105610080 B CN 105610080B CN 201610099112 A CN201610099112 A CN 201610099112A CN 105610080 B CN105610080 B CN 105610080B
Authority
CN
China
Prior art keywords
busbar
interval
housing
gis device
input terminal
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.)
Active
Application number
CN201610099112.6A
Other languages
Chinese (zh)
Other versions
CN105610080A (en
Inventor
朱传运
石治中
庞庆平
方煜瑛
倪威
李健
齐小虎
李忠富
蔡杰
王小东
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.)
State Grid Corp of China SGCC
Pinggao Group Co Ltd
Henan Pinggao Electric Co Ltd
Original Assignee
State Grid Corp of China SGCC
Pinggao Group Co Ltd
Henan Pinggao Electric 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 State Grid Corp of China SGCC, Pinggao Group Co Ltd, Henan Pinggao Electric Co Ltd filed Critical State Grid Corp of China SGCC
Priority to CN201610099112.6A priority Critical patent/CN105610080B/en
Publication of CN105610080A publication Critical patent/CN105610080A/en
Application granted granted Critical
Publication of CN105610080B publication Critical patent/CN105610080B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B13/00Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
    • H02B13/02Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
    • H02B13/035Gas-insulated switchgear
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/20Bus-bar or other wiring layouts, e.g. in cubicles, in switchyards
    • H02B1/22Layouts for duplicate bus-bar selection
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00Adapting or protecting infrastructure or their operation
    • Y02A30/14Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Patch Boards (AREA)

Abstract

The present invention relates to a kind of packaged type GIS device and a kind of GIS vehicles, which includes vehicle body and GIS device, which includes the high-voltage electrical apparatus element in housing and housing, and high-voltage electrical apparatus element forms internal bridge form.The GIS device is a kind of removable, portable equipment, the GIS device is transported to the region of needs by vehicle-mounted or unloaded mode, with mobility strong, convenient transportation, the advantages of highly reliable, it is primarily adapted for use in due to electric network fault sudden caused by natural calamity, to some areas in flood struck, drought, ice damage, earthquake, fast recovery of power supply after the extraordinary serious natural calamities such as disaster caused by a windstorm has irreplaceable effect, power off time can be shortened in the continued power after having a power failure caused by failure or as possible, to power grid, fast quick-recovery and stable power grid are most important.

Description

A kind of packaged type GIS device and a kind of GIS vehicles
Technical field
The present invention relates to GIS device, specially a kind of packaged type GIS device and a kind of GIS vehicles.
Background technology
Increase as city becomes 110kV GIS power stations time of putting into operation, old hidden trouble of equipment gradually shows, the transformation pressure faced Power is growing day by day.Due to being limited to current grid structure, equipment and technological means, it is difficult that City Substation implements Overall Reconstruction It spends larger:First, the still aobvious weakness of grid structure, city load Relatively centralized, load factor is more more than 80% substation, relies on Existing power grid transfer load difficulty is larger;Second is that even if part substation can rely on distribution transfer load, distribution during transformation It will bear very big operating pressure;Third, taking high and low pressure equipment transform pattern stage by stage, construction period is forced to elongate, by pole Increase power-up network operation, operational risk;Fourth, transformation during abnormal electrical power mode last it is longer, if occurrence of equipment or line failure It will lead to whole station full cut-off, power supply reliability is difficult to ensure that.
At present, existing GIS device is fixed apparatus, can not flexibly be used, also, the device configuration element is less, Connection in apparatus casing is relatively simple, and string is equipped with switchgear typically just on a circuit, as shown in Figure 1.This GIS Functions of the equipments are simple, can only play the role of switch mostly, it is impossible to meet the functional requirement to become increasingly complex.
Invention content
The object of the present invention is to provide a kind of packaged type GIS devices, simple to solve existing GIS device function, Can not meet demand the problem of.Present invention simultaneously provides a kind of GIS vehicles.
To achieve the above object, the solution of the present invention includes a kind of packaged type GIS device, including in housing and housing High-voltage electrical apparatus element, the high-voltage electrical apparatus element forms internal bridge form, including two busbares:First busbar and the second mother Line, the both ends of the first busbar are respectively the first input terminal and the first outlet terminal of the GIS device, the both ends of the second busbar The second input terminal and the second outlet terminal of respectively described GIS device, mother is connected between the first busbar and the second busbar On line road, string is equipped with busbar breaker on the mother circuit.
The interface cabinet and switch board of the fixed GIS device on the outer wall of the housing.
First input terminal and the second input terminal are arranged on the side of housing, the first outlet terminal and the second outlet Terminal is arranged on the opposite side of housing.
The interface cabinet is arranged on the side of the housing, and the switch board is arranged on the opposite side of the housing.
A kind of GIS vehicles including vehicle body, further include the fixed GIS device being loaded on vehicle body, the GIS device Including the high-voltage electrical apparatus element in housing and housing, the high-voltage electrical apparatus element forms internal bridge form, including two busbares: First busbar and the second busbar, the both ends of the first busbar are respectively the first input terminal and the first leading-out terminal of the GIS device Son, the both ends of the second busbar are respectively the second input terminal and the second outlet terminal of the GIS device, the first busbar and second Mother circuit is connected between busbar, string is equipped with busbar breaker on the mother circuit.
The interface cabinet and switch board of the fixed GIS device on the outer wall of the housing.
First input terminal and the second input terminal are arranged on the side of housing, the first outlet terminal and the second outlet Terminal is arranged on the opposite side of housing.
The interface cabinet is arranged on the side of the housing, and the switch board is arranged on the opposite side of the housing.
GIS device provided by the invention be packaged type equipment, be an independent equipment, not with the other equipment moment It is connected, just uses, be just attached with other equipment, to realize its function only in electric network emergency.When the power grid in somewhere During failure, which can be transported to rapidly the region, and is linked into the equipment by corresponding wire connection terminal In the power grid of the fault zone, resuming operation for power grid is realized by internal electrical main connecting wire, so, the equipment is relative to biography The fixed apparatus of system, can be by vehicle-mounted or unloaded mode by the GIS device for a kind of removable, portable equipment Transport the region of needs, the GIS device have mobility strong, convenient transportation, it is highly reliable the advantages of, simultaneously because its move Ability is strong, so, it is primarily adapted for use in due to electric network fault sudden caused by natural calamity, to some areas by flood Fast recovery of power supply after the extraordinary serious natural calamities such as calamity, drought, ice damage, earthquake, disaster caused by a windstorm has irreplaceable effect.Moreover, its Also be able to the transformation and maintenance for meeting City Substation, therefore, it has very wide application and a development prospect, superiority with Significant economic benefit is worth China's power department to be paid close attention in power supply problem after old power grid or natural calamity is transformed With popularization.
The form of electrical main connecting wire in the GIS device is internal bridge, and has just been connected in manufacture, institute With, in GIS device in use, will GIS device when being linked into emergent region, without again by faulty grids according to internal bridge Mode carry out wiring, but directly by the end of incoming cables of the GIS device and there is end the equipment be linked into the emergent region In, the power supply for restoring faulty grids is realized using the internal bridge inside equipment, so, which has the degree of modularity High, the advantages of emergency is high, quick for installation, combination is flexible.
In addition, the present invention also provides a kind of GIS vehicles, using the locomotivity of vehicle in itself, can relatively quickly move Electric network emergency is carried out to emergent region, and using the GIS device on vehicle, so, which has stronger mobility, can Greatly shorten the power off time caused by faulty grids, fast quick-recovery and stable power grid are most important, while also may be used to power grid Had a power failure with reducing to economic loss and political impact caused by user, society.
Description of the drawings
Fig. 1 is the electrical main connecting wire schematic diagram in existing GIS device;
Fig. 2 is the overall structure diagram for the GIS device that can be hung;
Fig. 3 is the overall structure diagram for the GIS device that can be walked;
Fig. 4 is the mode of connection schematic diagram of bridge in typical case;
Fig. 5 is the stereoscopic schematic diagram of GIS device;
Fig. 6 is the schematic top plan view of GIS device;
Fig. 7 is busbar spatial arrangement structure schematic diagram.
Specific embodiment
The present invention will be further described in detail below in conjunction with the accompanying drawings.
GIS device embodiment
GIS device provided by the invention is a kind of moveable GIS device, which includes a housing, the GIS The moveable property of equipment is embodied on housing, i.e., the housing is movable casing, for example, there are one housing bottom settings Larger chassis, convenient for hanging for whole equipment, as shown in Figure 2;Or the GIS device is placed in a walking mechanism, Such as wheel etc., it can be used in vehicle-mounted walking, as shown in Figure 3.
The inside of the housing is disposed with the high-voltage electrical apparatus element of the equipment, which forms internal bridge shape Formula, as shown in figure 4, the internal bridge includes 1# busbares and 2# busbares, wherein, there is 1# ends of incoming cables and 1# outlets on 1# busbares End, has 2# ends of incoming cables and 2# leading-out terminals on 2# busbares, there are one mother circuit between two busbares, goes here and there and sets on the mother circuit There is busbar breaker.Wherein, 1# ends of incoming cables and 1# leading-out terminals are respectively the first input terminal and the first leading-out terminal of the GIS device Son, 2# ends of incoming cables and 2# leading-out terminals are respectively the second input terminal and the second outlet terminal of the GIS device.
Attached drawing 4 has been merely given as a kind of schematic diagram of internal bridge, since the internal bridge belongs to the prior art, then, The specific setting of the concrete structure of the wiring, internal breaker and switch also belongs to the prior art, does not do here specific Explanatory note.So the attached drawing is not defined the concrete structure of the internal bridge in the present invention, the present invention also not office It is limited to the concrete structure that the attached drawing 4 provides.
Once the wherein busbar in the interior bridge breaks down or one of end of incoming cables (assuming that 1# inlet wires interval) When breaking down or meet with external force destruction, function is hauled oneself willingly by the back of the body, can will be somebody's turn to do after 1# inlet wires interval breaker (QF) separating brake Repair and maintenance is spaced, at this time since 2# inlet wires interval is charged, so as to not influence 1# outgoing line interval supplying power for outside;When 2# inlet wires interval When breaking down or meet with external force destruction, do not influence 2# outgoing line interval supplying power for outside equally, ensured electric power continuous supply.Separately Outside, internal bridge can make the GIS device compacter because of its mode of connection, so, it should GIS based on typical case's internal bridge Equipment is not only compact-sized, and wherein a bus-bar fault when either corresponding end of incoming cables break down or meet with external force During destruction, another busbar is capable of providing electric energy, ensure that whole station does not have a power failure, so, which can promote the stabilization of power grids Property and power supply reliability.
As it can be seen in figures 5 and 6, the three-dimensional structure diagram for the packaged type GIS device, wherein, include two of the GIS device Busbar is:WB1 main bus-bars 9 and WB2 main bus-bars 8, in addition, primary structure mainly includes 7 typical spacing modules:1# inlet wires interval 1st, 1# main transformers interval 2,2# main transformers interval 3,2# threephase potential transformers 4,1# threephase potential transformers 5, mother interval 6,2# into Line interval 7;Two second part mainly include 2 Wiring modules:11 and three cabinet 12 of interface cabinet.Two inlet wires in the GIS device Terminal is arranged on the side of housing, and two outlet terminals are arranged on opposite side, i.e., in fig. 5 and fig., 1# inlet wires interval 1 and 2# Inlet wire interval 7 and corresponding input terminal are arranged on left side, 1# outgoing line intervals and the setting of 2# outgoing line intervals and difference Corresponding outlet terminal is on right side.
11 and three cabinet 12 of interface cabinet is installed on the outer wall of housing, and three cabinets 12 are the control for placing control device Cabinet processed, control device control connect the switching device in internal bridge.Wiring in three cabinets can be increased using plug connector form Internal terminal arranges arrangement space;Also, three cabinets 12 are arranged on the side of outlet terminal, and are placed in 1# outgoing line intervals and 2# outlets The top at interval, the plug connector mode of connection are conveniently conducive to overhaul of the equipments because of plug;Interface cabinet 11 is arranged on the one of input terminal Side, and be arranged on the top at 1# inlet wires interval 1 and 2# inlet wires interval 7, for being connect with GIS peripheral equipments, using individually connecing Mouth cabinet, and terminal row wiring and plug connector wiring two ways have been reserved, convenient for scene the mode of connection is selected according to actual conditions. Due to being generally equipped with interface cabinet and switch board in GIS device, then, about interface cabinet and switch board internal structure and Function belongs to routine techniques, no longer illustrates here.
The GIS device is integrally provided on lifting chassis 10.The major parameter of the mobile GIS equipment:Rated voltage 126kV, rated current 3150A, rated frequency 50Hz, rated short circuit drop-out current 40kA, rated short circuit making current 100kA, Rated peak withstand current 100kA, specified KA Rms 100kA/4s, lightning impulse withstand voltage 550kV, power frequency tolerance Voltage 230kV, breaker mechanical service life 10000 times, using spring operating mechanism.
When the power grid in somewhere breaks down, which is transported to rapidly the region, and passes through corresponding wiring The equipment is linked into the power grid of the fault zone by terminal, and is passed through internal internal bridge and realized resuming operation for power grid. Since the locomotivity of the GIS device is strong, so, it is primarily adapted for use in due to electric network fault sudden caused by natural calamity, Have not to fast recovery of power supply of some areas after the extraordinary serious natural calamities such as flood struck, drought, ice damage, earthquake, disaster caused by a windstorm Alternative effect.Moreover, its transformation and maintenance for also being able to meet City Substation, therefore, it have very wide application and Development prospect, superiority are worth China's power department electric power after old power grid or natural calamity is transformed with significant economic benefit It is paid close attention on supply problem with promoting.
In addition, in order to save arrangement space, meet existing traffic condition, the busbar in the GIS device is using as shown in Figure 7 Arrangement.In addition, since car body jolts in transportational process, there is certain destructiveness to equipment, so, using cable termination Outlet good seismic performance, and cable termination horizontal (i.e. input terminal and outlet terminal is horizontal) is conducive to end and is inserted It connects, is smoothly docked under automobile scenarios and two kinds of ground operating condition with external circuit, while can reduce convenient for equipment Cable outlet side apparatus height.
In above-described embodiment, the arrangement of interface cabinet, switch board and disengaging line terminals is illustrated, when So, this is a kind of specific embodiment, and GIS device provided by the invention is not limited to the above embodiment, as it His embodiment, the arrangement of interface cabinet, switch board and inlet-outlet line terminal can have other arrangements, such as The line terminals of exchanging or pass in and out that the installation position of line terminals was exchanged and passed in and out to the position of interface cabinet and switch board are indulged To setting or be obliquely installed.
GIS vehicle embodiments
GIS vehicles provided by the invention include vehicle ontology, which can be conventional automobile, or a vehicle Compartment is walked by the driving of headstock.Fixation is mounted with GIS device on the vehicle ontology, so, which includes for one kind The vehicle of GIS device, since GIS device has had detailed description in above equipment embodiment, which is not described herein again.
Using the locomotivity of vehicle in itself, emergent region can be relatively quickly moved to, and set using the GIS on vehicle It is standby to carry out electric network emergency, so, which has stronger mobility, can greatly shorten and have a power failure caused by faulty grids Time, to power grid, fast quick-recovery and stable power grid are most important, while can also reduce power failure and be passed through to caused by user, society Ji loss and political impact.
Specific embodiment is presented above, but the present invention is not limited to described embodiment.The base of the present invention This thinking is above-mentioned basic scheme, and for those of ordinary skill in the art, various changes are designed in introduction according to the present invention The model of shape, formula, parameter do not need to spend creative work.It is right without departing from the principles and spirit of the present invention The change, modification, replacement and modification that embodiment carries out are still fallen in protection scope of the present invention.

Claims (6)

1. a kind of packaged type GIS device, including the high-voltage electrical apparatus element in housing and housing, which is characterized in that the high pressure Electrical equipment forms internal bridge form, including two busbares:First busbar and the second busbar, the both ends of the first busbar are respectively The first input terminal and the first outlet terminal of the GIS device, the both ends of the second busbar are respectively the second of the GIS device Input terminal and the second outlet terminal, are connected with mother circuit between the first busbar and the second busbar, go here and there and set on the mother circuit There is busbar breaker;First input terminal and the second input terminal are arranged on the side of housing, the first outlet terminal and Two outlet terminals are arranged on the opposite side of housing;
The GIS device includes the first inlet wire interval, the first main transformer interval, the second main transformer interval, second voltage mutual inductor, first Voltage transformer, mother interval and the second inlet wire interval;Using the side where the first input terminal and the second input terminal before, Using the opposite side where the first outlet terminal and the second outlet terminal after, wherein, by the first inlet wire interval, the first main transformer interval The the first busbar spacer structure formed with first voltage mutual inductor is arranged on the right side at the mother interval along the longitudinal direction, by the The second busbar spacer structure that two inlet wire intervals, the second main transformer interval and second voltage mutual inductor are formed is arranged on along the longitudinal direction The left side at the mother interval, the mother interval include two cylinders setting up and down, wherein upper shell and the described first mother Line spacer structure is connected, and lower shell is connected with the second busbar spacer structure.
2. packaged type GIS device according to claim 1, which is characterized in that fixed GIS on the outer wall of the housing The interface cabinet and switch board of equipment;First input terminal, the second input terminal, the first outlet terminal and the second outlet terminal It is horizontal.
3. packaged type GIS device according to claim 2, which is characterized in that the interface cabinet is arranged on the housing Side, the switch board is arranged on the opposite side of the housing.
4. a kind of GIS vehicles, including vehicle body, which is characterized in that the fixed GIS device being loaded on vehicle body is further included, The GIS device includes the high-voltage electrical apparatus element in housing and housing, and the high-voltage electrical apparatus element forms internal bridge form, including Two busbares:First busbar and the second busbar, the both ends of the first busbar are respectively the first input terminal and of the GIS device One outlet terminal, the both ends of the second busbar are respectively the second input terminal and the second outlet terminal of the GIS device, and first is female Mother circuit is connected between line and the second busbar, string is equipped with busbar breaker on the mother circuit;First input terminal The side of housing is arranged on the second input terminal, the first outlet terminal and the second outlet terminal are arranged on the opposite side of housing;
The GIS device includes the first inlet wire interval, the first main transformer interval, the second main transformer interval, second voltage mutual inductor, first Voltage transformer, mother interval and the second inlet wire interval;Using the side where the first input terminal and the second input terminal before, Using the opposite side where the first outlet terminal and the second outlet terminal after, wherein, by the first inlet wire interval, the first main transformer interval The the first busbar spacer structure formed with first voltage mutual inductor is arranged on the right side at the mother interval along the longitudinal direction, by the The second busbar spacer structure that two inlet wire intervals, the second main transformer interval and second voltage mutual inductor are formed is arranged on along the longitudinal direction The left side at the mother interval, the mother interval include two cylinders setting up and down, wherein upper shell and the described first mother Line spacer structure is connected, and lower shell is connected with the second busbar spacer structure.
5. GIS vehicles according to claim 4, which is characterized in that the interface of the fixed GIS device on the outer wall of the housing Cabinet and switch board;First input terminal, the second input terminal, the first outlet terminal and the second outlet terminal are horizontal.
6. GIS vehicles according to claim 5, which is characterized in that the interface cabinet is arranged on the side of the housing, described Switch board is arranged on the opposite side of the housing.
CN201610099112.6A 2016-02-23 2016-02-23 A kind of packaged type GIS device and a kind of GIS vehicles Active CN105610080B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610099112.6A CN105610080B (en) 2016-02-23 2016-02-23 A kind of packaged type GIS device and a kind of GIS vehicles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610099112.6A CN105610080B (en) 2016-02-23 2016-02-23 A kind of packaged type GIS device and a kind of GIS vehicles

Publications (2)

Publication Number Publication Date
CN105610080A CN105610080A (en) 2016-05-25
CN105610080B true CN105610080B (en) 2018-06-15

Family

ID=55989725

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610099112.6A Active CN105610080B (en) 2016-02-23 2016-02-23 A kind of packaged type GIS device and a kind of GIS vehicles

Country Status (1)

Country Link
CN (1) CN105610080B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111244767A (en) * 2020-03-11 2020-06-05 中铁二院工程集团有限责任公司 AT traction substation 2X 27.5kV main wiring structure and fault isolation method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4570202A (en) * 1981-10-16 1986-02-11 Hitachi, Ltd. Gas-insulated switchgear equipment
CN203326461U (en) * 2013-06-25 2013-12-04 山东兴驰高压开关有限公司 Arrangement structure of GIS apparatus
CN203805996U (en) * 2014-05-09 2014-09-03 青岛特锐德电气股份有限公司 Vehicle-mounted moving substation and frame therefor
CN104584347A (en) * 2012-09-18 2015-04-29 株式会社日立制作所 Gas-insulated switchgear

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4570202A (en) * 1981-10-16 1986-02-11 Hitachi, Ltd. Gas-insulated switchgear equipment
CN104584347A (en) * 2012-09-18 2015-04-29 株式会社日立制作所 Gas-insulated switchgear
CN203326461U (en) * 2013-06-25 2013-12-04 山东兴驰高压开关有限公司 Arrangement structure of GIS apparatus
CN203805996U (en) * 2014-05-09 2014-09-03 青岛特锐德电气股份有限公司 Vehicle-mounted moving substation and frame therefor

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
内桥接线GIS电压异常分析及预防措施;王雷等;《600/1000 MW 超级临界机组技术交流2009年会》;20091130;第212-215页 *

Also Published As

Publication number Publication date
CN105610080A (en) 2016-05-25

Similar Documents

Publication Publication Date Title
JP5701856B2 (en) A new auto-transformer power feeding system equipped with 2 × 27.5kV outdoor modular electrical equipment
CN105207097A (en) Regional power grid emergency rescue equipment
WO2019169950A1 (en) Railway power supply system and outdoor parallel modular device for railway power supply system
CN107634464B (en) Movable transformer pack
CN105610080B (en) A kind of packaged type GIS device and a kind of GIS vehicles
CN102931587A (en) Security power supply and distribution truck
CN202906202U (en) Distribution vehicle for ensuring power supply
CN209823247U (en) Integrated high-voltage switch cabinet
CN207896531U (en) Extra-high voltage alternating current transformer substation
CN215897307U (en) Station electric loop of high-voltage direct current converter station and high-voltage direct current converter station
CN110380340A (en) A kind of transformer substation power distribution unit
CN202978004U (en) Unilaterally/uninterruptedly-powered extensible-type ring main unit
CN205657374U (en) Solid insulation boundary switch cabinet
CN101282033A (en) User demarcation load switch
CN210404354U (en) 35kV bypass bus device of oil field transformer substation
CN209948370U (en) Bypass node type PT cabinet
CN203278057U (en) Intelligent prefabricated transformer substation
RU117732U1 (en) HIGH VOLTAGE DISTRIBUTION DEVICE
CN206685710U (en) A kind of new distribution device applied to severe cold area transformer station
CN203607729U (en) Compact 35kv transformer substation
CN202997326U (en) Insulated bus and high-voltage switch device
CN201075365Y (en) User demarcation load switch
CN103594943B (en) A kind of compact 35kV transformer station
CN203278083U (en) Miniature circuit breaker cabinet
CN202260232U (en) Fully-insulated looped-network type high-voltage switching equipment

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant