CN105609335A - Gas insulated ring main unit and isolating switch and conductive assembly - Google Patents
Gas insulated ring main unit and isolating switch and conductive assembly Download PDFInfo
- Publication number
- CN105609335A CN105609335A CN201610047442.0A CN201610047442A CN105609335A CN 105609335 A CN105609335 A CN 105609335A CN 201610047442 A CN201610047442 A CN 201610047442A CN 105609335 A CN105609335 A CN 105609335A
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- China
- Prior art keywords
- conductive contact
- contact
- conductive
- annular
- finger
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Links
- 238000009413 insulation Methods 0.000 claims description 42
- 230000013011 mating Effects 0.000 claims description 8
- 125000006850 spacer group Chemical group 0.000 claims description 8
- 230000003068 static effect Effects 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 2
- 230000033001 locomotion Effects 0.000 abstract description 4
- 239000012212 insulator Substances 0.000 description 5
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 230000005283 ground state Effects 0.000 description 4
- 230000005684 electric field Effects 0.000 description 3
- 210000002445 nipple Anatomy 0.000 description 3
- 238000007789 sealing Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/58—Electric connections to or between contacts; Terminals
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
Abstract
The invention relates to a gas insulated ring main unit and an isolating switch and a conductive assembly. The conductive assembly comprises conductive contact bases and annular conductive contact fingers arranged on the conductive contact base, wherein a main shaft through hole for allowing an insulating main shaft to pass through and to be mounted, and capable of rotating freely is formed in each conductive contact base; the axial line of the main shaft through hole extends along a left-right direction; the corresponding annular conductive contact finger is arranged on the periphery of the main shaft through hole, and used for being glidingly contacted and electrically connected with a corresponding moving contact when the moving contact rotates along with the insulating main shaft; the corresponding annular conductive contact finger is constantly in contact with the corresponding moving contact, and enables the moving contact to be fixedly connected with the corresponding conductive contact base; and the conductive contact bases are electrically connected with a main loop. Compared with the connection way that the moving contacts are connected with the main loop through a relatively thin soft connection part or a contact in the prior art, the circulation capacity and rotation movement travel of the moving contacts in the invention are improved; in addition, the electrical connecting places between the annular conductive contact fingers and the moving contacts are all positioned in the conductive contact bases, so that the reliability of the electrical connection between the corresponding moving contacts and conductive contact bases is ensured.
Description
Technical field
The present invention relates to switchgear technical field, be specifically related to a kind of gas-insulated ring network cabinet and isolating switch and conductive component.
Background technology
Gas-insulated ring network cabinet is widely used in mesohigh transmission and distribution networks; carry out the distribution of electric energy and the protection of circuit; three-station is the main element of gas-insulated ring network cabinet, is installed in gas-insulated ring network cabinet, for connection, the isolation of circuit and the ground connection of circuit of circuit. Three-station is provided with three running statuses, is generally "on" position, gate-dividing state and ground state. Three-station can be divided into direct action type three-station and rotary three-station conventionally by structure.
Rotary three-station generally adopts disconnecting link formula structure, disconnecting link is moving contact, drive by insulation spindle, moving contact is installed on insulation spindle and with major loop one end and is connected, combined floodgate touch base and ground contact seat are installed on the rotation round of moving contact end and are placed in correct position place, moving contact both sides, combined floodgate touch base is connected with the major loop other end, ground contact seat is connected with ground connection busbar, rotary three-station drives insulation spindle rotation by external agency, realizes being connected of moving contact and combined floodgate touch base or moving contact and ground contact seat. Rotary three-station is because its moving contact adopts the manner of execution of rotation, be generally arranged as front in after mode, it is wide that ring main unit can be designed to cabinet less on left and right directions. On the insulation spindle that rotary three-station need rotate while being installed on action because of its moving contact, moving contact also must be electrically connected with major loop, causes comparatively difficulty of structural design. What at present moving contact and the general employing of major loop was thinner be flexible coupling or the mode of contact is slidably connected, but its through-current capability is limited, movement travel is less to be caused out apart from limited, cannot, more continuing to use in high voltage and current class ring main unit, be flexible coupling because its shape is changeable, when action, swing large, after action, position is uncertain, be subject to easily deforming, rupturing because electric power affects after larger short circuit current, cause insulation fault etc., cannot meet instructions for use.
Summary of the invention
The object of the present invention is to provide to have solved in prior art because moving contact and major loop adopt thinner to be flexible coupling or the mode of contact is slidably connected and causes the conductive component of through-flow minor issue, the present invention also aims to provide the isolating switch and the ring main unit that use this conductive component simultaneously.
Conductive component of the present invention adopts following technical scheme: conductive component, comprise conductive contact seat and be arranged at the annular conductive contact finger on conductive contact seat, on described conductive contact seat, be provided with for the main shaft perforation that install and that can freely rotate for insulation spindle, the axis of main shaft perforation extends along left and right directions, when rotate with insulation spindle for moving contact the periphery that annular conductive contact finger is arranged at main shaft perforation and moving contact sliding-contact be electrically connected.
Described conductive contact seat is that split-type structural comprises the spaced left conductive contact seat plate in left and right and right conductive contact seat plate, the gap that is formed for holding moving contact between left and right conductive contact seat plate, annular conductive contact finger comprises the left conductive contact finger of annular being arranged on left conductive contact finger plate and is arranged at the right conductive contact finger of annular on right conductive contact finger plate.
On the relative side of described left and right conductive contact seat plate, be provided with annular conductive contact finger groove, described annular conductive contact finger is installed in corresponding conductive contact finger groove.
Between described left and right conductive contact seat plate, be provided with spacer to carry out spacing to the distance between left and right conductive contact seat plate.
Described conductive contact seat has a mounting plane for being fixedly electrically connected with lower outlet row that is arranged at its underpart.
Isolating switch of the present invention adopts following technical scheme: isolating switch, comprise conductive component, the insulation spindle that moving contact and the axis of installing for moving contact and be in transmission connection with moving contact extend along left and right directions, described conductive component comprises conductive contact seat and is arranged at the annular conductive contact finger on conductive contact seat, on described conductive contact seat, be provided with for the main shaft perforation that install and that can freely rotate for insulation spindle, the axis of main shaft perforation extends along left and right directions, when rotate with insulation spindle for moving contact the periphery that annular conductive contact finger is arranged at main shaft perforation and moving contact sliding-contact be electrically connected, moving contact has the mating surface that the conduction of contacting with annular conductive contact finger coordinates.
Described mating surface is plane.
Described conductive contact seat is that split-type structural comprises the spaced left conductive contact seat plate in left and right and right conductive contact seat plate, the gap that is formed for holding moving contact between left and right conductive contact seat plate, annular conductive contact finger comprises the left conductive contact finger of annular being arranged on left conductive contact finger plate and is arranged at the right conductive contact finger of annular on right conductive contact finger plate.
Described isolating switch also comprises isolating switch support, the static contact crossbeam that is provided with the left and right installing plate for installing for insulation spindle on isolating switch support and is arranged at the moving contact crossbeam of installing for the moving contact for isolating switch between left and right installation board and installs for the static contact of isolating switch.
Ring main unit of the present invention adopts following technical scheme: ring main unit, comprise cabinet and the isolating switch that is arranged at cabinet inside, isolating switch comprises conductive component, the insulation spindle that moving contact and the axis of installing for moving contact and be in transmission connection with moving contact extend along left and right directions, described conductive component comprises conductive contact seat and is arranged at the annular conductive contact finger on conductive contact seat, on described conductive contact seat, be provided with for the main shaft perforation that install and that can freely rotate for insulation spindle, the axis of main shaft perforation extends along left and right directions, when rotate with insulation spindle for moving contact the periphery that annular conductive contact finger is arranged at main shaft perforation and moving contact sliding-contact be electrically connected, moving contact has the mating surface that the conduction of contacting with annular conductive contact finger coordinates.
Beneficial effect of the present invention is: on conductive contact seat, outside main shaft perforation, be arranged with the annular conductive contact finger being electrically connected with moving contact sliding-contact in the time that moving contact rotates with insulation spindle, annular conductive contact finger contacts all the time with moving contact and moving contact and conductive contact seat conduction is connected, conductive contact seat is electrically connected with major loop, be flexible coupling or contact is connected and compares by thinner with moving contact in prior art and major loop, its through-current capability and the stroke that rotatablely moves are increased, and annular conductive contact finger and moving contact electrical connection place are all positioned at conductive contact seat inside, ensure the reliability being electrically connected between moving contact and conductive contact seat, conductive contact seat can play realizes electric field shielding to inner annular conductive contact finger and moving contact, ensure the deteriorated risk of switch motion naked.
Brief description of the drawings
Fig. 1 is the structural representation of an embodiment of ring main unit of the present invention;
Fig. 2 is the upward view of Fig. 1;
Fig. 3 is action and the position relationship schematic diagram of "on" position, gate-dividing state and the ground state of three-station;
Fig. 4 be in Fig. 1 three-station at the cutaway view at A-A place;
Fig. 5 be in Fig. 1 three-station at the cutaway view at B-B place;
Fig. 6 is the structural representation of moving contact;
Fig. 7 is the structural representation of conductive contact seat.
Detailed description of the invention
Ring main unit, as depicted in figs. 1 and 2, for gas-insulated ring network cabinet comprises airtight cabinet 17, the isolating switch support 1 that is arranged at the isolating switch of cabinet 17 inside and installs for isolating switch, isolating switch is that tri-station isolating switch comprises that three isolating switches are single-phase, the single-phase ground contact seat 4 being arranged on isolating switch support 1 that includes of each isolating switch, the combined floodgate touch base 7 being electrically connected with major loop one end, the conductive component being electrically connected with the major loop other end, the moving contact 2 being electrically connected with conductive component and left and right run through each isolating switch single-phase and the insulation spindle 9 that is in transmission connection with moving contact 2, conductive component comprises conductive contact seat 3, be arranged at annular conductive contact finger 14 and spacer 15 on conductive contact seat 3. isolating switch support 1 comprises the left side for installing for insulation spindle 9, right installing plate 20, be arranged at a left side, the moving contact crossbeam 21 for installing for the moving contact 2 of isolating switch between right installing plate 20, the static contact crossbeam of installing for the static contact of isolating switch, moving contact crossbeam 21 is for fixing lower outlet row 10 and conductive contact seat 3, static contact crossbeam comprises combined floodgate touch base crossbeam 23 for combined floodgate contact 7 is installed and for the ground contact seat crossbeam 22 of ground contact seat 4 is installed, on combined floodgate touch base crossbeam 23, be provided with combined floodgate touch base supporting insulator 8, on moving contact crossbeam 21, be fixedly connected with moving contact supporting insulator 11, on moving contact supporting insulator 11, be fixed with lower outlet row 10, on lower outlet row 10, be installed with conductive contact seat 3, combined floodgate touch base 7 is installed on combined floodgate touch base supporting insulator 8 and is electrically connected on one end of major loop by upper outlet row 6, conductive contact seat 3 lower ends are fixed with lower outlet row 10, lower outlet row 10 is fixed on moving contact supporting insulator 11, conductive contact seat 3 is electrically connected on the other end of major loop by lower outlet row 10, ground contact seat 4 is connected by screw on ground contact seat crossbeam 22 with grounding copper bar 5, a left side for isolating switch support 1, on right installing plate 20, left and right correspondence is provided with left axle sleeve 18 and right axle sleeve 19, insulation spindle 9 is by left, right axle sleeve rotates and is assemblied on isolating switch support 1. as shown in Figure 6, on moving contact 2, be provided with the six square tube hole 2-1 that extend along left and right directions, insulation spindle 9 is the outer hexagonal structure suitable with six square tube hole 2-1, insulation spindle 9 can drive moving contact 2 synchronously to rotate, moving contact 2 can swing around insulation spindle 9, and ground contact seat 4 and combined floodgate touch base 7 are positioned in the movement travel of end of moving contact. isolating switch support 1 is tower structure, has increased the intensity of three-station.
Conductive contact seat 3, as Fig. 4, shown in Fig. 5 and Fig. 6, comprise the spaced left conductive contact seat plate 3-5 of split left and right and right conductive contact seat plate 3-6, when use, left, right conductive contact seat plate is located in moving contact 2 between the two, left, on right conductive contact seat, being provided with the main shaft perforation 3-2 passing for insulation spindle 9 is left main shaft perforation and the perforation of right main shaft, the diameter of main shaft perforation 3-2 is greater than the maximum outside diameter of insulation spindle 9, on the right flank of left conductive contact seat plate 3-5, be provided with left conductive contact finger groove 3-1, on the left surface of right conductive contact seat plate 3-6, be provided with right conductive contact finger groove, left, in right conductive contact finger groove, be respectively arranged with annular left conductive contact finger and annular right conductive contact finger, moving contact 2 is electrically connected with conductive contact seat 3 by annular conductive contact finger 14, moving contact 2 has the mating surface 2-2 that the conduction of contacting with annular conductive contact finger 14 coordinates, mating surface 2-2 is plane. between left and right conductive contact seat plate, be provided with spacer 15 in moving contact 2 both sides, front and back, on left and right conductive contact seat plate, be provided with installing hole 3-4 in moving contact 2 both sides, front and back, spacer 15 coordinates with installing hole 3-4 by bearing pin spacer 15 is rotated and is assemblied on conductive contact seat 3, spacer 15 is for carrying out controlling of spacing and decrement to annular conductive contact finger 14 to the position between left and right conductive contact seat plate, arranging of spacer 15 need meet moving contact 2 rotational travel requirements, and can carry out spacing to combined floodgate and earthing position. distance between left and right conductive contact seat plate forms the gap that holds moving contact 2. the bottom of left and right conductive contact seat plate is equipped with a mounting plane 3-3 for being fixedly electrically connected with lower outlet row 10, on mounting plane 3-3, is provided with screwed hole, and left and right conductive contact seat plate and lower outlet row 10 are bolted to connection. the power intake of insulation spindle 9 leads to the outside of cabinet 17 by transit joint 12, seal nipple 13, the power intake place of insulation spindle 9 is provided with seal nipple 13, seal nipple 13 is sealed and matched by sealing ring 16 and cabinet 17, realizes the sealing effectiveness of gas-insulated ring network cabinet. line direction and the installed surface angle that 3-3 is of two installing hole 3-4 that arrange on conductive contact seat 3 are D, and angle D is generally acute angle.
In the present invention, left and right conductive contact seat plate is collar plate shape structure, and main shaft perforation is the circular hole that diameter is all greater than insulation spindle 9 maximum outside diameters, and insulation spindle 9 can and can freely rotate through main shaft perforation in hole. Because two annular conductive contact fingers 14 are all installed on the inside of conductive contact seat 3, can meet by conductive contact seat 3 electric field shieldings. The outer round arris edge of conductive contact seat 3 can arrange certain fillet, for controlling alternate electric-field intensity, meets phase insulation requirement, realizes the integrated design of conduction and high-tension shielding.
The course of work of the present invention is: as shown in Figure 1, moving contact 2 is between ground contact seat 4 and combined floodgate touch base 7, and now three-station is in gate-dividing state; As shown in Figure 3, clockwise rotate insulation spindle by centre position, insulation spindle drives moving contact to clockwise rotate, and in the time that moving contact and combined floodgate touch base electrically contact, now three-station is in "on" position; Rotate counterclockwise insulation spindle by centre position, insulation spindle drives moving contact to move counterclockwise, and in the time that moving contact and ground contact seat electrically contact, now three-station is in ground state.
In other embodiments of the invention, conductive contact seat can be integral type structure, now, on conductive contact seat, be provided with main shaft perforation that the axis that runs through conductive contact seat in left and right extends along left and right directions and for hold the gap of moving contact and have make moving contact can along insulation spindle between ground state, gate-dividing state and "on" position swing to switch the running space of three states; Annular conductive contact finger groove on left and right conductive contact seat can be arranged at the both sides of moving contact plane, realizes this type of and rotates connecting structure for electrical equipment; Conductive contact seat also can only retain left conductive contact seat plate or right conductive contact seat plate; Conductive contact finger groove can only have one, and now corresponding annular conductive contact finger is also one; Three-station also can comprise one, and three-station is single-phase or two three-stations are single-phase; Conductive contact seat can be also polygonized structure.
The embodiment of the isolating switch in each embodiment of the embodiment of isolating switch of the present invention and above-mentioned ring main unit is identical, repeats no more herein.
The embodiment of the conductive component in each embodiment of the embodiment of conductive component of the present invention and above-mentioned ring main unit is identical, repeats no more herein.
Claims (10)
1. conductive component, it is characterized in that: comprise conductive contact seat and be arranged at the annular conductive contact finger on conductive contact seat, on described conductive contact seat, be provided with for the main shaft perforation that install and that can freely rotate for insulation spindle, the axis of main shaft perforation extends along left and right directions, when rotate with insulation spindle for moving contact the periphery that annular conductive contact finger is arranged at main shaft perforation and moving contact sliding-contact be electrically connected.
2. conductive component according to claim 1, it is characterized in that: described conductive contact seat is that split-type structural comprises the spaced left conductive contact seat plate in left and right and right conductive contact seat plate, the gap that is formed for holding moving contact between left and right conductive contact seat plate, annular conductive contact finger comprises the left conductive contact finger of annular being arranged on left conductive contact finger plate and is arranged at the right conductive contact finger of annular on right conductive contact finger plate.
3. conductive component according to claim 2, is characterized in that: on the relative side of described left and right conductive contact seat plate, be provided with annular conductive contact finger groove, described annular conductive contact finger is installed in corresponding conductive contact finger groove.
4. according to the conductive component described in claim 2 or 3, it is characterized in that: between described left and right conductive contact seat plate, be provided with spacer to carry out spacing to the distance between left and right conductive contact seat plate.
5. conductive component according to claim 1, is characterized in that: described conductive contact seat has a mounting plane for being fixedly electrically connected with lower outlet row that is arranged at its underpart.
6. isolating switch, it is characterized in that: comprise conductive component, the insulation spindle that moving contact and the axis of installing for moving contact and be in transmission connection with moving contact extend along left and right directions, described conductive component comprises conductive contact seat and is arranged at the annular conductive contact finger on conductive contact seat, on described conductive contact seat, be provided with for the main shaft perforation that install and that can freely rotate for insulation spindle, the axis of main shaft perforation extends along left and right directions, when rotate with insulation spindle for moving contact the periphery that annular conductive contact finger is arranged at main shaft perforation and moving contact sliding-contact be electrically connected, moving contact has the mating surface that the conduction of contacting with annular conductive contact finger coordinates.
7. isolating switch according to claim 6, is characterized in that: described mating surface is plane.
8. isolating switch according to claim 6, it is characterized in that: described conductive contact seat is that split-type structural comprises the spaced left conductive contact seat plate in left and right and right conductive contact seat plate, the gap that is formed for holding moving contact between left and right conductive contact seat plate, annular conductive contact finger comprises the left conductive contact finger of annular being arranged on left conductive contact finger plate and is arranged at the right conductive contact finger of annular on right conductive contact finger plate.
9. according to the isolating switch described in claim 6-8 any one, it is characterized in that: described isolating switch also comprises isolating switch support the static contact crossbeam that is provided with the left and right installing plate for installing for insulation spindle on isolating switch support and is arranged at the moving contact crossbeam of installing for the moving contact for isolating switch between left and right installation board and installs for the static contact of isolating switch.
10. ring main unit, comprise cabinet and the isolating switch that is arranged at cabinet inside, it is characterized in that: isolating switch comprises conductive component, the insulation spindle that moving contact and the axis of installing for moving contact and be in transmission connection with moving contact extend along left and right directions, described conductive component comprises conductive contact seat and is arranged at the annular conductive contact finger on conductive contact seat, on described conductive contact seat, be provided with for the main shaft perforation that install and that can freely rotate for insulation spindle, the axis of main shaft perforation extends along left and right directions, when rotate with insulation spindle for moving contact the periphery that annular conductive contact finger is arranged at main shaft perforation and moving contact sliding-contact be electrically connected, moving contact has the mating surface that the conduction of contacting with annular conductive contact finger coordinates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610047442.0A CN105609335B (en) | 2016-01-25 | 2016-01-25 | A kind of gas-insulated ring network cabinet and rotary three-station and conductive component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610047442.0A CN105609335B (en) | 2016-01-25 | 2016-01-25 | A kind of gas-insulated ring network cabinet and rotary three-station and conductive component |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105609335A true CN105609335A (en) | 2016-05-25 |
| CN105609335B CN105609335B (en) | 2018-09-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610047442.0A Active CN105609335B (en) | 2016-01-25 | 2016-01-25 | A kind of gas-insulated ring network cabinet and rotary three-station and conductive component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105609335B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106953265A (en) * | 2017-04-21 | 2017-07-14 | 河南森源电气股份有限公司 | Gas-filling cabinet |
| CN107181194A (en) * | 2017-06-22 | 2017-09-19 | 广东紫光电气有限公司 | A kind of double isolation armouring mobile vacuum high-tension switch gears of straight cutting |
| CN108390303A (en) * | 2018-05-08 | 2018-08-10 | 河南森源电气股份有限公司 | A kind of gas-filling cabinet three-station and gas-filling cabinet |
| CN109004535A (en) * | 2018-06-22 | 2018-12-14 | 苏州达博思智能电网装备制造有限公司 | A kind of New Type Isolating Switch |
| CN109301745A (en) * | 2018-10-30 | 2019-02-01 | 江苏南瑞帕威尔电气有限公司 | A kind of double-fracture tri-station isolating switch in environmental protection gas-insulated ring network cabinet |
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| CN201060784Y (en) * | 2007-07-20 | 2008-05-14 | 浙江煤山矿灯电源有限公司 | Isolating switch of coal shearer |
| CN201142518Y (en) * | 2007-12-29 | 2008-10-29 | 山东泰开高压开关有限公司 | Flat rotating electric connection of closed type combined electrical apparatus switch |
| CN102097221A (en) * | 2009-12-14 | 2011-06-15 | 北京维益埃电气有限公司 | Contact finger |
| WO2013160115A1 (en) * | 2012-04-28 | 2013-10-31 | Siemens Aktiengesellschaft | Isolating/grounding switch with three phases in one enclosure |
| CN204117866U (en) * | 2014-10-14 | 2015-01-21 | 江苏精科智能电气股份有限公司 | For the fixed contact of rotary combined electrical apparatus isolation, earthed switch |
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| CN201060784Y (en) * | 2007-07-20 | 2008-05-14 | 浙江煤山矿灯电源有限公司 | Isolating switch of coal shearer |
| CN201142518Y (en) * | 2007-12-29 | 2008-10-29 | 山东泰开高压开关有限公司 | Flat rotating electric connection of closed type combined electrical apparatus switch |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106953265A (en) * | 2017-04-21 | 2017-07-14 | 河南森源电气股份有限公司 | Gas-filling cabinet |
| CN107181194A (en) * | 2017-06-22 | 2017-09-19 | 广东紫光电气有限公司 | A kind of double isolation armouring mobile vacuum high-tension switch gears of straight cutting |
| CN108390303A (en) * | 2018-05-08 | 2018-08-10 | 河南森源电气股份有限公司 | A kind of gas-filling cabinet three-station and gas-filling cabinet |
| CN109004535A (en) * | 2018-06-22 | 2018-12-14 | 苏州达博思智能电网装备制造有限公司 | A kind of New Type Isolating Switch |
| CN109004535B (en) * | 2018-06-22 | 2024-04-30 | 苏州达博思智能电网装备制造有限公司 | Isolation switch |
| CN109301745A (en) * | 2018-10-30 | 2019-02-01 | 江苏南瑞帕威尔电气有限公司 | A kind of double-fracture tri-station isolating switch in environmental protection gas-insulated ring network cabinet |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105609335B (en) | 2018-09-04 |
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