CN108832525B - Detachable unit of inflatable power transmission device and inflatable power transmission device - Google Patents
Detachable unit of inflatable power transmission device and inflatable power transmission device Download PDFInfo
- Publication number
- CN108832525B CN108832525B CN201810709091.4A CN201810709091A CN108832525B CN 108832525 B CN108832525 B CN 108832525B CN 201810709091 A CN201810709091 A CN 201810709091A CN 108832525 B CN108832525 B CN 108832525B
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- movable contact
- power transmission
- conductor
- detachable unit
- inflatable
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 50
- 239000004020 conductor Substances 0.000 claims abstract description 112
- 230000033001 locomotion Effects 0.000 claims abstract description 13
- 238000000926 separation method Methods 0.000 claims abstract description 6
- 238000007789 sealing Methods 0.000 claims description 25
- 230000007704 transition Effects 0.000 claims description 19
- 230000005611 electricity Effects 0.000 claims 3
- 238000012423 maintenance Methods 0.000 abstract description 4
- 230000003068 static effect Effects 0.000 description 7
- 239000012212 insulator Substances 0.000 description 6
- 238000009434 installation Methods 0.000 description 3
- 229910018503 SF6 Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 244000309464 bull Species 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 description 2
- 229960000909 sulfur hexafluoride Drugs 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 210000001503 joint Anatomy 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
- H02B13/0358—Connections to in or out conductors
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Gas-Insulated Switchgears (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The utility model relates to a detachable unit of an inflatable power transmission device and the inflatable power transmission device in the field of GIS or GIL equipment. The detachable unit of the inflatable power transmission device comprises a barrel assembly capable of generating separation along the axial direction and a central conductor arranged in the barrel assembly, wherein the central conductor comprises more than two sections of conductor sections which are detachably connected, a movable contact is assembled on at least one conductor section along the axial direction guiding movement of the central conductor, and a contact finger part used for conducting and separating from the movable contact when the movable contact moves is arranged on the adjacent conductor section; the inflatable power transmission device comprises a power transmission cylinder and the detachable unit connected between the power transmission cylinders. The inflatable power transmission device with the structure is detachable and convenient to assemble and disassemble, and great convenience is provided for maintenance.
Description
Technical Field
The utility model relates to the technical field of GIS and GIL equipment, in particular to a detachable unit of an inflatable power transmission device and the inflatable power transmission device.
Background
With the rapid development of national economy and power industry, the power grid is increasingly large in scale, and the gas insulated metal-enclosed switchgear (GIS) has the advantages of small influence on the operation of the GIS by external environment, no need of frequent maintenance, small occupied area and the like, and is widely adopted in transformer substations in recent years.
The GIS equipment refers to primary equipment except a transformer in a transformer substation, comprising a bus, a circuit breaker, a disconnecting switch, a grounding switch and the like, which are organically combined together through optimized design, and the inside of a container is filled with sulfur hexafluoride gas for insulation through container sealing. GIL devices are one of the important devices for power transmission, and include a casing unit, a linear unit, an isolation unit, a compensation unit, and the like, combined together. GIS and GIL equipment are long-distance power transmission equipment in practical application, the bus length of the GIS is different from a few meters to tens of meters, the GIL equipment is different from a few kilometers to hundreds of kilometers, and equipment maintenance is needed after the equipment fails.
The Chinese patent with the publication number of CN205489204U discloses a dismounting device for GIS bus and a bus assembly using the same, wherein the dismounting device for GIS bus comprises a cylindrical shell connected with a first disc insulator and a corrugated pipe which is in butt joint with the shell and is connected with a second disc insulator, a first conductor is arranged in the shell, a second conductor is arranged in the corrugated pipe, and a middle conductive piece is detachably connected between the first conductor and the second conductor. The dismounting device for GIS busbar of this kind of structure need stretch into in the casing and remove the screw between first conductor and middle electrically conductive piece and second conductor and the middle electrically conductive piece when dismantling, because the size of GIS busbar barrel is great, leads to the position of overhauling to be far away with the detachable point distance, wastes time and energy when overhauling.
The Chinese patent publication No. CN201294151Y discloses a separable transformer direct connection device for GIS, which comprises a conductive rod, wherein the conductive rod is slidably assembled in a tubular conductive sleeve through a gear and rack transmission mechanism, one end of the conductive rod can be movably and electrically connected with a fixed contact arranged at the top of the transformer sleeve, and the other end of the conductive rod is electrically connected with GIS switch equipment through the conductive sleeve. When the structure is used for testing or overhauling GIS switch equipment, the conducting rod is not required to be dismantled, the ratchet wrench is only required to be rotated, and the conducting rod is disconnected with the transformer sleeve through the gear rack transmission mechanism, so that the transformer sleeve is in a disconnection state, the structure is simple, the overhauling is convenient, and the problem that the overhauling position and the detachable point distance are too far to overhaul is solved. However, when the conducting rod and the transformer sleeve are disconnected and electrically connected through the gear rack transmission, whether the conducting rod and the transformer sleeve are in a disconnected or connected state or not cannot be reliably and intuitively observed, the conductor cannot be accurately separated and disassembled, and the disassembly, the overhaul and the installation of the power transmission device are still inconvenient.
Disclosure of Invention
The utility model aims to provide a detachable unit of an inflatable power transmission device, which solves the problem that in the prior art, power transmission equipment cannot intuitively observe that a movable contact and a conductor section are in a disconnected or connected state, so that maintenance is inconvenient; the utility model also aims to provide an inflatable power transmission device.
In order to achieve the above purpose, the technical scheme of the detachable unit of the inflatable power transmission device provided by the utility model is as follows: the detachable unit of the inflatable power transmission device comprises a barrel assembly capable of generating separation along the axial direction and a central conductor arranged in the barrel assembly, wherein the central conductor comprises more than two sections of conductor sections which are detachably connected, a movable contact is arranged on at least one conductor section along the axial direction of the central conductor in a guiding and moving way, and a contact finger part used for conducting and separating from the movable contact when the movable contact moves is arranged on the adjacent conductor section; a space is reserved between the conductor section provided with the movable contact and the adjacent conductor section;
the barrel assembly comprises a telescopic shell, a sealing shell and a right-side transition shell, wherein the part of the telescopic shell, which is pressed and assembled on the sealing shell, can move left and right in the sealing shell, and forms a gap with the right-side transition shell when the sealing shell moves leftwards, and in a disassembly state, the end face of a conductor segment adjacent to the conductor segment provided with the movable contact in the axial direction is positioned between the gaps.
The detachable unit of the inflatable power transmission device has the beneficial effects that: the detachable unit of the inflatable power transmission device is suitable for GIS or GIL equipment, the movable contact is assembled on at least one conductor section along the axial guiding movement of the central conductor, the movable contact can conduct or separate two adjacent conductor sections by guiding movement of the two adjacent conductor sections, the movable contact can be used for avoiding the screw from being connected or detached by using the screw and the screw from being stretched into the cylinder body to be detached, and when the equipment encounters a fault and needs to be overhauled, the movable contact is only required to be driven to detach after the separation of the two adjacent conductor sections, so that convenience is provided for overhauling.
This inflatable transmission device forms the clearance with right side transition casing when moving to left through setting up sealed casing to in the dismantlement state, be located with the terminal surface of the adjacent conductor section of conductor section that is equipped with the moving contact in axial direction between the clearance, can directly observe and judge whether the moving contact breaks away from the conductor completely and makes adjacent conductor form obvious fracture through sealed casing and right side transition casing formation clearance, thereby carry out subsequent dismantlement, need not carry out the separation and the dismouting of adjacent conductor of extensive casing dismantlement can accurately be accomplished, make transmission device's dismantlement, overhaul and install more convenient.
Further, the conductor section provided with the movable contact is limited to be of a cylindrical structure, the movable contact is arranged in the cylindrical structure, and a driving mechanism for driving the movable contact to stretch out and draw back is further arranged on the conductor section provided with the movable contact. The conductor section is a tubular structure, can be used for wearing and installing the movable contact, is connected with actuating mechanism on the movable contact, and this actuating mechanism can drive the movable contact and remove in the conductor section so that two adjacent conductor sections switch on or separate, and it is very convenient to dismantle.
Further, as optimization of the driving mechanism, it is limited that the driving mechanism comprises a rack fixed on the movable contact, a rotating rod rotationally assembled on the cylindrical structure is arranged in the cylindrical structure, a gear meshed with the rack is fixed on the rotating rod, a driving part for connecting corresponding operation tools to drive the rotating rod to rotate is arranged at the end part of the rotating rod, and the driving part is exposed on the side wall of the cylindrical structure. The gear rack is used for meshing and driving the guiding movement of the movable contact, so that the operation is very easy.
Further, in order to control the movement of the movable contact outside the cylinder, the cylinder assembly is limited to have a cylinder wall provided with an operation opening for inserting an operation tool, and the operation opening is provided with a detachable sealing cover.
Further, in order to facilitate the guiding movement of the movable contact in the cylinder, a guiding sleeve matched with the movable contact in a guiding manner is arranged in the limiting cylinder structure.
Further, a conductor segment provided with a movable contact is defined with a space between adjacent conductor segments. When the movable contact is dismounted, the driving mechanism drives the movable contact to move to the position that two adjacent conductor sections are completely separated, and the subsequent dismounting work is easier to carry out from the interval position.
Further, in order to facilitate the matching connection between the conductors at the movable end and the static end, a conductor section provided with a movable contact is limited to be provided with a contact finger matched with the movable contact.
The technical scheme of the inflatable power transmission device is as follows: the inflatable power transmission device comprises a power transmission barrel and a detachable unit connected between the power transmission barrels, wherein the detachable unit comprises barrel components which are separated along the axial direction and a central conductor arranged in the barrel components, the central conductor comprises more than two sections of conductor sections which are detachably connected, a movable contact is assembled on at least one conductor section along the axial direction guiding movement of the central conductor, and a contact finger part used for conducting and separating from the movable contact when the movable contact moves is arranged on the adjacent conductor section; a space is reserved between the conductor section provided with the movable contact and the adjacent conductor section;
the barrel assembly comprises a telescopic shell, a sealing shell and a right-side transition shell, wherein the part of the telescopic shell, which is pressed and assembled on the sealing shell, can move left and right in the sealing shell, and forms a gap with the right-side transition shell when the sealing shell moves leftwards, and in a disassembly state, the end face of a conductor segment adjacent to the conductor segment provided with the movable contact in the axial direction is positioned between the gaps.
The inflatable power transmission device has the beneficial effects that: the conductors in the power transmission device are connected without fasteners such as screws, so that the movable contact with the driving mechanism is adopted for connection, the working efficiency is high during installation, the assembly is firm, the disassembly is convenient and the overhaul is facilitated when the fault overhaul is encountered, and the clearance formed between the sealing shell and the right side transition shell can be directly observed and judged whether the movable contact is completely separated from the conductors to enable the adjacent conductors to form obvious fractures, so that the disassembly, the overhaul and the installation are more convenient.
Further, the conductor section provided with the movable contact is limited to be of a cylindrical structure, the movable contact is arranged in the cylindrical structure, and a driving mechanism for driving the movable contact to stretch out and draw back is further arranged on the conductor section provided with the movable contact. The conductor section is a tubular structure, can be used for wearing and installing the movable contact, is connected with actuating mechanism on the movable contact, and this actuating mechanism can drive the movable contact and remove in the conductor section so that two adjacent conductor sections switch on or separate, and it is very convenient to dismantle.
Further, as optimization of the driving mechanism, it is limited that the driving mechanism comprises a rack fixed on the movable contact, a rotating rod rotationally assembled on the cylindrical structure is arranged in the cylindrical structure, a gear meshed with the rack is fixed on the rotating rod, a driving part for connecting corresponding operation tools to drive the rotating rod to rotate is arranged at the end part of the rotating rod, and the driving part is exposed on the side wall of the cylindrical structure. The gear rack is used for meshing and driving the guiding movement of the movable contact, so that the operation is very easy.
Further, in order to control the movement of the movable contact outside the cylinder, the cylinder assembly is limited to have a cylinder wall provided with an operation opening for inserting an operation tool, and the operation opening is provided with a detachable sealing cover.
Further, in order to facilitate the guiding movement of the movable contact in the cylinder, a guiding sleeve matched with the movable contact in a guiding manner is arranged in the limiting cylinder structure.
Further, a conductor segment provided with a movable contact is defined with a space between adjacent conductor segments. When the movable contact is dismounted, the driving mechanism drives the movable contact to move to the position that two adjacent conductor sections are completely separated, and the subsequent dismounting work is easier to carry out from the interval position.
Further, in order to facilitate the matching connection between the conductors at the movable end and the static end, a conductor section provided with a movable contact is limited to be provided with a contact finger matched with the movable contact.
Drawings
Fig. 1 is a schematic structural diagram of the present inflatable power transmission device;
fig. 2 is a schematic diagram of an operation state of the present inflatable power transmission device;
fig. 3 is a schematic view showing a detachable state of the present inflatable power transmission device;
in the accompanying drawings: the novel high-voltage power supply comprises a 1-basin-type insulator, a 2-left side transition shell, a 3-static end conductor, a 4-telescopic shell, a 5-sealing shell, a 6-contact, a 7-moving end conductor, an 8-right side transition shell, a 9-rack, a 10-rotating rod, an 11-guide sleeve, a 12-contact finger, a 13-sealing ring, a 14-cover plate, a 15-opening, a 16-dismounting tool and a 17-screw.
Detailed Description
Embodiments of the present utility model will be further described with reference to the accompanying drawings.
As shown in fig. 1, a specific embodiment of an inflatable power transmission device is applied in the field of GIS or GIL equipment, and includes a left side transition housing 2, a telescopic housing 4, a sealing housing 5, a right side transition housing 8, and a basin-type insulator 1 connected with the left side transition housing 2 and the right side transition housing 8 through bolts. A sealed chamber is formed among the left transition housing 2, the telescopic housing 4, the sealed housing 5, the right transition housing 8 and the basin-type insulator 1, and the sealed chamber needs to be filled with sulfur hexafluoride gas for insulation in use. The left side of flexible casing 4 passes through bolted connection with left side transition conductor 2, and flexible casing 4's right side passes through screw rod 17 with seal shell 5 to be connected, and the sealing washer 13 on the seal shell 5 of flexible casing 4 part pressure equipment simultaneously makes its and seal shell 5 sealing fit, and during the dismouting, the part of flexible casing 4 pressure equipment in seal shell 5 can be in seal shell 5 about moving. The concave side of the basin-type insulator 1 is respectively provided with a moving end conductor 7 and a static end conductor 3, the moving end conductor 7 and the static end conductor 3 are coaxially arranged, a contact 6 is arranged in the moving end conductor 7, and the contact 6 can move in the moving end conductor 7 and the static end conductor 3 in a guiding way.
Two pairs of contact fingers 12 for making the movable and the stationary conductors connected in a matched manner and a guide sleeve 11 for guiding the contact 6 are respectively arranged on the movable end conductor 7 and the stationary end conductor 3. The movable end conductor 7 is internally provided with a rotating rod 10, the rotating rod 10 is provided with a gear, the movable end conductor 7 is provided with a mounting hole for inserting and dismounting the tool 16 above the rotating rod 10, the right side transition shell 8 is provided with an opening 15 above the mounting hole, the opening 15 can be placed into the dismounting tool 16, and the opening 15 is matched with a cover plate 14. When the disassembly tool 16 is placed into the shell through the opening 15, the disassembly tool 16 is matched with the rotating rod 10 by aligning with the mounting hole formed in the movable end conductor 7 when the disassembly tool is placed into the shell, and the rotating rod 10 can be driven to rotate by rotating the hand rod of the disassembly tool 16. The contact 6 is connected with a rack 9, the rack 9 is meshed with a gear on the rotating rod 10, so that when the hand rod on the disassembly tool 16 is rotated, the contact 6 can be driven to move in the moving end conductor 7 and the static end conductor 3 in a guiding manner through the meshing transmission of the gear and the rack.
In operation, as shown in fig. 2, the contact 6 is located between the moving-end conductor 7 and the static-end conductor 3, so that the moving-end conductor 7 and the static-end conductor 3 are connected in a matched manner. When the inflatable power transmission device is disassembled, as shown in fig. 3, a fixing bolt between the sealing shell 5 and the right transitional shell 8 is loosened, then a screw 17 between the telescopic shell 4 and the sealing shell 5 is disassembled, the sealing shell 5 is pushed to move leftwards, and a certain gap is formed in the middle of the shell; then loosen the bolt of apron 14 department, take out apron 14, put into the casing along opening 15 with dismantling frock 16, aim at the mounting hole on the movable end conductor 7 with dismantling frock 16, make it and bull stick 10 cooperation, make the rack 9 of gear and contact 6 one end on the bull stick 10 mesh through rotating the hand lever on dismantling frock 16, thereby drive contact 6 to the right motion, make contact 6 break away from quiet end conductor 3 completely, form obvious fracture, can carry out the dismantlement that follows.
In other embodiments, the contact 6 is disposed outside the moving-end conductor 7, i.e., the contact 6 is sleeved on the moving-end conductor 7 and the contact 6 can move along the outer side wall of the moving-end conductor 7 in a guiding manner, so that conduction and separation between the moving-end conductor 7 and the static-end conductor 3 are realized.
In other embodiments, the above-described gear-rack drive for guiding movement of the drive contact 6 may be replaced by a slider-crank mechanism.
In other embodiments, the disassembly tool 16 is provided with a gear and a rack 9 for engagement to drive the contact 6 to move in a guiding manner in the moving and static end conductors.
In other embodiments, a slot may be formed in the lower portion of the movable end conductor, and a hand lever is connected to the contact 6 through the slot, and when the hand lever is detached, the contact 6 is directly pulled in the direction of the slot to be completely separated from the stationary end conductor 3.
Claims (7)
1. The utility model provides an inflatable transmission device's detachable unit, including can producing the barrel subassembly of separation and set up the center conductor in barrel subassembly inside along the axial, center conductor includes the conductor section of detachable connection more than two sections, its characterized in that: at least one conductor section is provided with a movable contact along the axial guiding movement of the central conductor, and adjacent conductor sections are provided with contact finger parts for conducting and separating from the movable contact when the movable contact moves; a space is reserved between the conductor section provided with the movable contact and the adjacent conductor section;
the barrel assembly comprises a telescopic shell, a sealing shell and a right-side transition shell, wherein the part of the telescopic shell, which is pressed and assembled on the sealing shell, can move left and right in the sealing shell, and forms a gap with the right-side transition shell when the sealing shell moves leftwards, and in a disassembly state, the end face of a conductor segment adjacent to the conductor segment provided with the movable contact in the axial direction is positioned between the gaps.
2. The detachable unit of an inflatable power transmission apparatus according to claim 1, wherein: the conductor section provided with the movable contact is of a cylindrical structure, the movable contact is arranged in the cylindrical structure, and a driving mechanism for driving the movable contact to stretch out and draw back is further arranged on the conductor section provided with the movable contact.
3. The detachable unit of an inflatable power transmission apparatus according to claim 2, wherein: the driving mechanism comprises a rack fixed on the movable contact, a rotating rod rotationally assembled on the cylindrical structure is arranged in the cylindrical structure, a gear meshed with the rack is fixed on the rotating rod, a driving part for connecting corresponding operation tools to drive the rotating rod to rotate is arranged at the end part of the rotating rod, and the driving part is exposed on the side wall of the cylindrical structure.
4. A detachable unit of an inflatable power transmission apparatus according to claim 3, wherein: the cylinder body assembly is characterized in that an operation opening for inserting an operation tool is formed in the cylinder wall of the cylinder body assembly, and a detachable sealing cover is arranged on the operation opening.
5. The detachable unit of an inflatable power transmission apparatus according to any one of claims 2 to 4, wherein: a guide sleeve matched with the movable contact in a guiding way is arranged in the cylindrical structure.
6. The detachable unit of an inflatable power transmission apparatus according to any one of claims 1 to 4, wherein: the conductor section provided with the movable contact is provided with a contact finger matched with the movable contact.
7. The utility model provides an inflatable transmission of electricity device, includes transmission of electricity barrel and connects the detachable unit between transmission of electricity barrel, its characterized in that: the detachable unit is a detachable unit of the inflatable power transmission apparatus of any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810709091.4A CN108832525B (en) | 2018-07-02 | 2018-07-02 | Detachable unit of inflatable power transmission device and inflatable power transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810709091.4A CN108832525B (en) | 2018-07-02 | 2018-07-02 | Detachable unit of inflatable power transmission device and inflatable power transmission device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108832525A CN108832525A (en) | 2018-11-16 |
| CN108832525B true CN108832525B (en) | 2024-01-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810709091.4A Active CN108832525B (en) | 2018-07-02 | 2018-07-02 | Detachable unit of inflatable power transmission device and inflatable power transmission device |
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| Country | Link |
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| CN (1) | CN108832525B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112202093B (en) * | 2020-08-14 | 2022-06-28 | 平高集团有限公司 | GIS uninterrupted power expansion device and transformer substation |
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| CN201294151Y (en) * | 2008-10-27 | 2009-08-19 | 河南平高电气股份有限公司 | Separable/closed transformer direct connection device for GIS |
| CN202167762U (en) * | 2011-05-23 | 2012-03-14 | 平高集团有限公司 | Bus assembly for super-high voltage engineering GIS |
| CN202308895U (en) * | 2011-10-31 | 2012-07-04 | 中国西电电气股份有限公司 | Detachable maintenance test unit for gas insulated metal enclosed switchgear |
| CN102938537A (en) * | 2012-06-27 | 2013-02-20 | 厦门华电开关有限公司 | Detachable busbar for gas insulated switchgear (GIS) |
| CN104538916A (en) * | 2014-11-14 | 2015-04-22 | 北京电力设备总厂有限公司 | Detachable bus unit and rigid gas insulation electric transmission line |
| CN106099660A (en) * | 2016-08-29 | 2016-11-09 | 广东电网有限责任公司电力科学研究院 | A kind of GIS device detachable bus structure |
| CN106504931A (en) * | 2016-10-27 | 2017-03-15 | 平高集团威海高压电器有限公司 | Two-way disconnecting switch and the GIS switchgears using the two-way disconnecting switch |
| CN208385999U (en) * | 2018-07-02 | 2019-01-15 | 河南森源电气股份有限公司 | A kind of detachable unit and inflatable power transmitting device of inflatable power transmitting device |
-
2018
- 2018-07-02 CN CN201810709091.4A patent/CN108832525B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002209326A (en) * | 2001-01-11 | 2002-07-26 | Mitsubishi Electric Corp | Gas-insulated gear and its insulation spacer |
| CN201260060Y (en) * | 2008-07-16 | 2009-06-17 | 维依埃龙源电工研究院有限公司 | Telescopic joint for gas insulation transmission line |
| CN201294151Y (en) * | 2008-10-27 | 2009-08-19 | 河南平高电气股份有限公司 | Separable/closed transformer direct connection device for GIS |
| CN202167762U (en) * | 2011-05-23 | 2012-03-14 | 平高集团有限公司 | Bus assembly for super-high voltage engineering GIS |
| CN202308895U (en) * | 2011-10-31 | 2012-07-04 | 中国西电电气股份有限公司 | Detachable maintenance test unit for gas insulated metal enclosed switchgear |
| CN102938537A (en) * | 2012-06-27 | 2013-02-20 | 厦门华电开关有限公司 | Detachable busbar for gas insulated switchgear (GIS) |
| CN104538916A (en) * | 2014-11-14 | 2015-04-22 | 北京电力设备总厂有限公司 | Detachable bus unit and rigid gas insulation electric transmission line |
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| CN106504931A (en) * | 2016-10-27 | 2017-03-15 | 平高集团威海高压电器有限公司 | Two-way disconnecting switch and the GIS switchgears using the two-way disconnecting switch |
| CN208385999U (en) * | 2018-07-02 | 2019-01-15 | 河南森源电气股份有限公司 | A kind of detachable unit and inflatable power transmitting device of inflatable power transmitting device |
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| Publication number | Publication date |
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| CN108832525A (en) | 2018-11-16 |
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