CN106972397A - Inflatable ac metal closing switch gear - Google Patents
Inflatable ac metal closing switch gear Download PDFInfo
- Publication number
- CN106972397A CN106972397A CN201710267208.3A CN201710267208A CN106972397A CN 106972397 A CN106972397 A CN 106972397A CN 201710267208 A CN201710267208 A CN 201710267208A CN 106972397 A CN106972397 A CN 106972397A
- Authority
- CN
- China
- Prior art keywords
- circuit breaker
- inflatable
- vacuum circuit
- enclosed switchgear
- metal enclosed
- 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
Links
- 239000002184 metal Substances 0.000 title claims abstract description 30
- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000009977 dual effect Effects 0.000 claims 2
- 230000007246 mechanism Effects 0.000 description 12
- 229910018503 SF6 Inorganic materials 0.000 description 5
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229960000909 sulfur hexafluoride Drugs 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
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
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
- H02B13/035—Gas-insulated switchgear
- H02B13/0354—Gas-insulated switchgear comprising a vacuum switch
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Gas-Insulated Switchgears (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The present invention provides a kind of inflatable ac metal closing switch gear, is related to switchgear.Inflatable ac metal closing switch gear, including：Cabinet, gas tank is provided with cabinet, main bus-bar, branch bar, vacuum circuit breaker and tri-station isolating switch are provided with gas tank, main bus-bar is arranged on the top of gas tank, tri-station isolating switch is arranged between main bus-bar and branch bar, vacuum circuit breaker is connected with branch bar, and the rated current of vacuum circuit breaker is 1250A；The vacuum interrupter of vacuum circuit breaker, which lies low, is arranged on the bottom of gas tank, and the moved end connecting rod of vacuum interrupter is connected with mechanic character tester, to measure the mechanical property of vacuum circuit breaker.By setting the vacuum circuit breaker that rated current is 1250A in gas tank, the power supply capacity of this inflatable ac metal closing switch gear is improved, and the security of the switchgear is effectively ensured, the power supply reliability of the switchgear is effectively ensured.
Description
Technical Field
The invention relates to switchgear, in particular to inflatable alternating-current metal-enclosed switchgear.
Background
The inflatable alternating current metal closed switch equipment is electrical equipment, is mainly used in the process of generating power, transmitting power, distributing power and converting electric energy in an electric power system, is opened, closed, controlled and protected, mainly comprises a circuit breaker, a disconnecting switch and the like, and can be suitable for occasions such as power plants, transformer substations, petrochemical industry, metallurgy steel rolling, light industrial textiles, factory and mining enterprises, residential quarters and the like.
In the prior art, the gas-filled type ac metal enclosed switchgear, rated at 630A (ampere), generally includes: the cabinet body, the cabinet body is interior from last to having set gradually low-voltage instrument room, circuit breaker and isolator control chamber, generating line room, accessory and instrument room down. However, with the development of science and technology and the improvement of living standard of people, the power supply capacity of the conventional inflatable alternating current metal enclosed switchgear with the rated current of 630A is low, and the requirement of people on the power supply capacity is difficult to meet.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides an inflatable alternating current metal enclosed switchgear which can effectively improve the power supply capacity.
The invention provides an inflatable alternating current metal enclosed switchgear, comprising: the vacuum circuit breaker comprises a cabinet body, wherein an air box is arranged in the cabinet body, a main bus, a branch bus, a vacuum circuit breaker and a three-station isolating switch are arranged in the air box, the main bus is arranged at the top of the air box, the three-station isolating switch is arranged between the main bus and the branch bus, the vacuum circuit breaker is connected with the branch bus, and the rated current of the vacuum circuit breaker is 1250A; the vacuum circuit breaker's vacuum interrupter lies and sets up the bottom of gas tank, vacuum interrupter's movable end connecting rod is connected with mechanical properties tester to measure vacuum circuit breaker's mechanical properties.
Further, the cabinet body is provided with at least three groups of assembled cabinet connecting plates.
Further, at least three groups of the main buses are included, and the main buses are provided with double connectors
Further, still be provided with the circuit breaker control chamber in the cabinet body, the circuit breaker control chamber sets up vacuum interrupter orientation move one side of end connecting rod.
Further, a disconnecting switch operation chamber is arranged above the circuit breaker operation chamber and used for operating the three-position disconnecting switch.
Further, a secondary element chamber is arranged above the isolating switch operation chamber.
Further, a cable chamber is provided below the air box.
Furthermore, two groups of cables 630A are arranged in the cable chamber, and the two groups of cables are connected through cable shoes;
and a grounding loop is also arranged in the cable chamber.
Further, the inflatable exchanges metal enclosed switchgear still includes: and the data transmission unit is connected with the sensor and is used for communicating with a control center of the master station.
Further, the inflatable exchanges metal enclosed switchgear, includes 3 at least cabinet bodies, just inflatable exchanges metal enclosed switchgear possesses two inlet wire schemes interlocking and two inlet wire and contacts the function of cabinet scheme interlocking.
According to the inflatable alternating current metal enclosed switchgear provided by the invention, the vacuum circuit breaker with rated current of 1250A is arranged in the air tank, so that the power supply capacity of the inflatable alternating current metal enclosed switchgear is improved, and the safety of the switchgear is effectively ensured; simultaneously, through inciting somebody to action three-station isolator sets up between main bus and the branch bus-bar, lie the vacuum interrupter of vacuum circuit breaker and set up the bottom of gas tank will vacuum interrupter's moving end connecting rod is connected with the mechanical properties tester, can also effectively guarantee this switchgear's power supply reliability.
Drawings
Fig. 1 is a first schematic structural view of an inflatable ac metal-enclosed switchgear according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an inflatable ac metal-enclosed switchgear according to an embodiment of the present invention.
Wherein,
1000-cabinet body; 1010-splicing cabinet connecting plates;
1100-gas box; 1110 — main bus;
1111-dual connector; 1120-vacuum interrupter;
1121-vacuum arc-extinguishing chamber; 1121 a-moving end connecting rod;
1130-branch bus; 1140-three-position isolating switch;
1150-outlet sleeve; 1210-circuit breaker operating chamber;
1220-isolation switch operating room; 1230-secondary element chamber;
1240-a cable chamber; 1241-cable;
1242-ground return.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention.
All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. The embodiments described below and the features of the embodiments can be combined with each other without conflict.
The terms "upper" and "lower" are used for describing relative positions of the structures in the drawings, and are only for the sake of clarity, but not for limiting the scope of the present invention, and the relative relationship changes or adjustments are also considered to be within the scope of the present invention without substantial technical changes.
Fig. 1 is a first schematic structural view of an inflatable ac metal-enclosed switchgear according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an inflatable ac metal-enclosed switchgear according to an embodiment of the present invention.
Referring to fig. 1-2, the present embodiment provides an inflatable ac metal enclosed switchgear, including: the cabinet comprises a cabinet body 1000, wherein an air box 1100 is arranged in the cabinet body 1000, a main bus 1110, a branch bus 1130, a vacuum circuit breaker 1120 and a three-position isolating switch 1140 are arranged in the air box 1100, the main bus 1110 is arranged at the top of the air box 1100, the three-position isolating switch 1140 is arranged between the main bus 1110 and the branch bus 1130, the vacuum circuit breaker 1120 is connected with the branch bus 1130, and the rated current of the vacuum circuit breaker 1120 is 1250A; the vacuum interrupter 1121 of the vacuum circuit breaker 1120 is laid down at the bottom of the gas box 1100, and the movable end connecting rod 1121a of the vacuum interrupter 1121 is connected with a mechanical property tester to measure the mechanical property of the vacuum circuit breaker 1120.
Specifically, the number of the cabinet bodies 1000 is not specifically limited in this embodiment, and those skilled in the art can set the number according to actual needs; at least 3 assembling cabinet connecting plates 1010 are arranged on the cabinet body 1000 to ensure the reliability of the connection between the mutually assembled cabinet bodies 1000; specifically, the cabinet splicing connecting plate 1010 is disposed on one side of the top of the cabinet 1000. Because the sulfur hexafluoride SF6 gas has excellent insulating property, and the gas box 1100 is filled with the sulfur hexafluoride SF6 gas, the power frequency withstand voltage of the switchgear provided by the embodiment can reach 65kV in 1 minute, so that the switchgear provided by the embodiment can be used in a power supply network with the voltage level of 24 kV. The vacuum interrupter 1120 is double insulated from SF6 gas to substantially ensure safety of the switchgear in this embodiment. The switchgear in the present embodiment and the following embodiments is an inflatable ac metal enclosed switchgear.
The main bus 1110 includes at least three groups, and the main bus 1110 has the double connector 1111 to increase the amount of cutoff of the main bus 1110, increase a heat dissipation area, improve power supply capacity of the switchgear, and safety. The rated current of the vacuum interrupter 1120 may be 1250A, at which time, the rated current of the three-position isolating switch 1140 is 1250A to match with the vacuum interrupter 1120 with rated current of 1250A; the disconnecting switch operating mechanism for operating the three-position disconnecting switch 1140 is arranged in the disconnecting switch operating chamber 1220, and accordingly, the disconnecting switch operating chamber 1220 is arranged outside the gas tank 1100 and close to the three-position disconnecting switch 1140, so that the circuit is simplified, the structure of the switch device is more compact, and the volume of the switch device is reduced. The disconnecting switch operating mechanism is a manual operating mechanism, the three-position disconnecting switch 1140 in this embodiment can also be connected to an electric operating mechanism, and a space for installing the electric operating mechanism can be provided in the disconnecting switch operating chamber 1220.
The vacuum arc-extinguishing chamber 1121 of the vacuum circuit breaker 1120 is horizontally arranged at the bottom of the gas box 1100, and the movable end connecting rod 1121a of the vacuum arc-extinguishing chamber 1121 extends out of the gas box 1100 and enters the circuit breaker operating chamber 1210 so as to measure the mechanical characteristics of the vacuum circuit breaker 1120 at any time, thereby being beneficial to timely knowing and ensuring the working condition of the vacuum circuit breaker 1120. Accordingly, the breaker operating chamber 1210 is disposed outside the gas box 1100 and near the vacuum breaker 1120 to simplify the wiring, so that the structure of the switchgear is more compact and the volume of the switchgear is reduced. Wherein, an operating mechanism of the vacuum circuit breaker 1120 is arranged in the breaker operating chamber 1210; the vacuum interrupter 1121 is laid flat to accommodate the main bus 1110 and the branch bus 1130, and also helps to reduce the size of the switchgear.
A movable end connecting rod 1121a of the vacuum arc extinguish chamber 1121 is specifically connected with a sensor of a mechanical property tester; when the vacuum circuit breaker 1120 has closing and opening actions, the motion stroke of the moving end of the vacuum arc-extinguishing chamber 1121 is measured through a sensor; when the two ends of the vacuum circuit breaker 1120 are connected with the electric loop, the mechanical characteristic tester can also measure the opening and closing time points, and obtains the mechanical characteristics of the vacuum circuit breaker through calculation, wherein the mechanical characteristics specifically comprise parameters such as total travel, opening distance, overtravel, closing speed, closing and opening synchronization, closing bounce and the like of the circuit breaker.
In this embodiment, since the three-position disconnecting switch 1140 is disposed above the vacuum circuit breaker 1120, the disconnecting switch operating chamber 1220 is disposed above the circuit breaker operating chamber 1210, and the vacuum arc-extinguishing chamber 1121 is disposed at the bottom of the gas tank 1100, which helps to reduce the height of the cabinet 1000, so as to facilitate the operation of the disconnecting switch operating mechanism of the three-position disconnecting switch 1140 in the disconnecting switch operating chamber 1220, and also make the structure of the switchgear more compact, which helps to reduce the volume of the switchgear.
In this embodiment, the inflatable ac metal-enclosed switchgear may include a group of switch cabinets, and the group of switch cabinets may include at least 3 cabinet bodies, where one cabinet body represents one switch cabinet. The inflatable alternating current metal enclosed switchgear in the embodiment has the functions of double-incoming-line scheme interlocking and double-incoming-line and contact cabinet scheme interlocking. Specifically, the double-incoming-line scheme is that two switch cabinets are used as incoming-line cabinets in a group of switch cabinets; the interlocking scheme of the double-incoming-line and interconnection cabinet is that in a group of switch cabinets, two switch cabinets are used as incoming-line cabinets, and one switch cabinet is used as an interconnection cabinet.
According to the inflatable alternating-current metal-enclosed switchgear provided by the embodiment, the vacuum circuit breaker 1120 with rated current of 1250A is arranged in the air tank 1100, so that the power supply capacity of the inflatable alternating-current metal-enclosed switchgear is improved, and the safety of the switchgear is effectively ensured; meanwhile, the three-station disconnecting switch 1140 is arranged between the main bus 1110 and the branch bus 1130, the vacuum arc-extinguishing chamber 1121 of the vacuum circuit breaker 1120 is horizontally arranged at the bottom of the gas box 1100, and the movable end connecting rod 1121a of the vacuum arc-extinguishing chamber 1121 is connected with a mechanical property tester, so that the power supply reliability of the switch device can be effectively guaranteed.
Further, an outlet bushing 1150 is further arranged in the gas tank 1100, and the outlet bushing 1150 is used for fixing a line connected with the current transformer; wherein, outlet sleeve 1150 extension sets up, and current transformer can be the bifilar structure, and outlet sleeve 1150 that the extension set up provides the space for current transformer's installation for current transformer can adorn in advance on switchgear, when satisfying distribution automation, has still simplified switchgear's structure, the installation of the cable 1241 of being convenient for.
A secondary element chamber 1230 may be provided above the disconnecting switch operation chamber 1220, and the secondary element chamber 1230 is used to provide secondary elements such as various measuring instruments and relay protection devices.
In this embodiment, the gas tank 1100 is disposed at one side of the cabinet 1000, and the secondary element chamber 1230, the disconnecting switch operating chamber 1220, and the circuit breaker operating chamber 1210 are sequentially disposed at the other side of the cabinet 1000 from top to bottom, so that the structure of the switchgear is more compact, and the volume of the switchgear is reduced.
Further, a cable chamber 1240 is provided below the gas box 1100 and the breaker operating chamber 1210. Specifically, two sets of cables 1241 of 630A are adopted in the cable chamber 1240, and the two sets of cables 1241 are plugged through cable shoes, specifically, the two sets of cables 1241 are respectively plugged in front and back of the cable shoes, so as to effectively reduce the height of the switchgear, and at this time, the rated current of the vacuum circuit breaker 1120 is 1250A.
Further, inflatable exchanges metal enclosed switchgear still includes: and the data transmission unit DTU is connected with the sensor and is used for communicating with the control center of the master station. Each control element, detection element, monitoring element etc. in the switchgear all can be connected with the DTU, and the DTU gives the control center of main website with signal transmission in the switchgear, controls, measures each return circuit in the switchgear by the control center of main website, improves distribution network automation performance.
The switchgear in the above embodiment has a rated current of 1250A, a rated short circuit breaking current of 25kA, and a rated voltage of 12kV or 24 kV.
The switch device provided by the embodiment can be used as an incoming line unit and an outgoing line unit. Before use, the main buses 1110 of the cabinets 1000 are communicated through the double connectors 1111, the cabinets 1000 are sequentially connected and fixed through the cabinet splicing connecting plates 1010, and the switch equipment is fixed on the channel steel; ground return 1242 in the connectivity cable compartment 1240; the cable 1241 is connected to the outlet sleeve 1150 via a cable boot.
When the switch is switched on, the three-position isolating switch 1140 is switched on through the isolating switch operating mechanism, and then the vacuum circuit breaker 1120 is switched on through the circuit breaker operating mechanism, so that the switch equipment can be successfully powered and normally work. At this time, the working state (on, off, grounding, etc.) and the current of the vacuum circuit breaker 1120 are uploaded to the control center of the master station through the DTU, so that the control center can know the operation state of the whole switch cabinet. When a fault occurs in a power transmission line or a switchgear, a current transformer detects a fault current, a secondary element such as a relay protection device sends a brake-opening instruction to open a vacuum circuit breaker 1120 to protect an outgoing line circuit or a switch cabinet, and a DTU uploads all signals to a control center. The relay protection device can be configured with an automatic reclosing function, and can automatically recover power supply for instantaneous faults. When the line needs to be overhauled in case of power failure, the vacuum circuit breaker 1120 is separated through the circuit breaker operating mechanism, the three-position isolating switch 1140 is separated through the isolating switch operating mechanism, and the three-position isolating switch 1140 is grounded, so that the line, the mechanism and the like can be overhauled.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. An inflatable exchanges metal enclosed switchgear characterized in that includes: the vacuum circuit breaker comprises a cabinet body, wherein an air box is arranged in the cabinet body, a main bus, a branch bus, a vacuum circuit breaker and a three-station isolating switch are arranged in the air box, the main bus is arranged at the top of the air box, the three-station isolating switch is arranged between the main bus and the branch bus, the vacuum circuit breaker is connected with the branch bus, and the rated current of the vacuum circuit breaker is 1250A; the vacuum circuit breaker's vacuum interrupter lies and sets up the bottom of gas tank, vacuum interrupter's movable end connecting rod is connected with mechanical properties tester to measure vacuum circuit breaker's mechanical properties.
2. The inflatable ac metal enclosed switchgear of claim 1, wherein said cabinet body is provided with at least three groups of assembled cabinet connecting plates.
3. The gas-filled ac metal enclosed switchgear according to claim 1, comprising at least three sets of said main busbars, and said main busbars having double connectors.
4. The gas-filled type alternating current metal enclosed switchgear as claimed in claim 1, wherein a circuit breaker operating chamber is further provided in the cabinet body, and the circuit breaker operating chamber is provided on a side of the vacuum arc-extinguishing chamber facing the moving end connecting rod.
5. The inflatable AC metal enclosed switchgear of claim 4, wherein a disconnector operating room is provided above the breaker operating room, the disconnector operating room providing an operating space for operating the three-position disconnector.
6. The gas-filled AC metal enclosed switchgear according to claim 5, wherein a secondary element chamber is provided above said disconnector operating chamber.
7. The gas-filled ac metal enclosed switchgear according to claim 1, wherein a cable chamber is provided below the gas tank.
8. The gas-filled ac metal enclosed switchgear according to claim 7, wherein two sets of 630A cables are provided in said cable compartment, and said two sets of cables are connected by cable shoes; and a grounding loop is also arranged in the cable chamber.
9. The inflatable ac metal enclosed switchgear of claim 1, further comprising: and the data transmission unit is used for communicating with the control center of the master station.
10. The inflatable AC metal enclosed switchgear of claim 1, comprising at least 3 cabinets, wherein said inflatable AC metal enclosed switchgear has the functions of dual incoming line scheme interlocking and dual incoming line plus tie cabinet scheme interlocking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710267208.3A CN106972397A (en) | 2017-04-21 | 2017-04-21 | Inflatable ac metal closing switch gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710267208.3A CN106972397A (en) | 2017-04-21 | 2017-04-21 | Inflatable ac metal closing switch gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106972397A true CN106972397A (en) | 2017-07-21 |
Family
ID=59334036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710267208.3A Pending CN106972397A (en) | 2017-04-21 | 2017-04-21 | Inflatable ac metal closing switch gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106972397A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107623279A (en) * | 2017-10-17 | 2018-01-23 | 杭州世创电子技术股份有限公司 | A kind of gas-insulated ring network cabinet metal enclosed switchgear |
| CN107706761A (en) * | 2017-10-29 | 2018-02-16 | 刘正南 | Inflatable ac metal closing switch gear |
| CN110492378A (en) * | 2019-09-18 | 2019-11-22 | 广东永丰智威电气有限公司 | A kind of hermetically sealed full-insulating high-voltage gas-filling cabinet of 1250A rated current |
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| JP2007185060A (en) * | 2006-01-10 | 2007-07-19 | Japan Ae Power Systems Corp | Gas-insulated switchgear |
| CN201199609Y (en) * | 2008-01-21 | 2009-02-25 | 佛山市华南开关有限公司 | Novel AC metal closed switch installation |
| CN204179498U (en) * | 2014-10-30 | 2015-02-25 | 北京合纵科技股份有限公司 | A kind of breaker cabinet and HXGN-12 series switch cabinet |
| CN204517261U (en) * | 2015-04-30 | 2015-07-29 | 深圳市一鎏科技有限公司 | A kind of Novel inflating cabinet |
| CN105990904A (en) * | 2015-02-02 | 2016-10-05 | 江苏森源电气股份有限公司 | Intelligent medium-voltage magnetic field pressure non-contact potential measurement switch cabinet |
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2017
- 2017-04-21 CN CN201710267208.3A patent/CN106972397A/en active Pending
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|---|---|---|---|---|
| JP2007185060A (en) * | 2006-01-10 | 2007-07-19 | Japan Ae Power Systems Corp | Gas-insulated switchgear |
| CN201199609Y (en) * | 2008-01-21 | 2009-02-25 | 佛山市华南开关有限公司 | Novel AC metal closed switch installation |
| CN204179498U (en) * | 2014-10-30 | 2015-02-25 | 北京合纵科技股份有限公司 | A kind of breaker cabinet and HXGN-12 series switch cabinet |
| CN105990904A (en) * | 2015-02-02 | 2016-10-05 | 江苏森源电气股份有限公司 | Intelligent medium-voltage magnetic field pressure non-contact potential measurement switch cabinet |
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Non-Patent Citations (1)
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| "《高低压电器及设计》" * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107623279A (en) * | 2017-10-17 | 2018-01-23 | 杭州世创电子技术股份有限公司 | A kind of gas-insulated ring network cabinet metal enclosed switchgear |
| CN107706761A (en) * | 2017-10-29 | 2018-02-16 | 刘正南 | Inflatable ac metal closing switch gear |
| CN110492378A (en) * | 2019-09-18 | 2019-11-22 | 广东永丰智威电气有限公司 | A kind of hermetically sealed full-insulating high-voltage gas-filling cabinet of 1250A rated current |
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| PB01 | Publication | ||
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Application publication date: 20170721 |