CN106653419A - High-voltage switch supporting integrated cabinet and high-voltage switch - Google Patents
High-voltage switch supporting integrated cabinet and high-voltage switch Download PDFInfo
- Publication number
- CN106653419A CN106653419A CN201610975195.0A CN201610975195A CN106653419A CN 106653419 A CN106653419 A CN 106653419A CN 201610975195 A CN201610975195 A CN 201610975195A CN 106653419 A CN106653419 A CN 106653419A
- Authority
- CN
- China
- Prior art keywords
- cabinet
- voltage switch
- switch gear
- operating mechanism
- motor
- 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
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/26—Power arrangements internal to the switch for operating the driving mechanism using dynamo-electric motor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/02—Bases, casings, or covers
Abstract
The invention relates to a high-voltage switch supporting integrated cabinet and a high-voltage switch. The high-voltage switch comprises a cross beam and a circuit breaker body arranged on the cross beam, the circuit breaker body comprises a transmission shaft arranged in the cross beam, the high-voltage switch further comprises the high-voltage switch supporting integrated cabinet, the high-voltage switch supporting integrated cabinet comprises a cabinet body, a control unit and an operating mechanism are arranged in the cabinet body, and an output shaft of the operating mechanism is in transmission connection with the transmission shaft. By adopting the high-voltage switch, the motor operating mechanism and the control unit are integrated in the double-layer shielding cabinet having high protection level, so that the requirement for electromagnetic interference resistance of a motor during machining can be reduced while the motor is better protected, the machining cost of the motor is reduced, simultaneously, protective boxes are not needed for the motor operating mechanism and the control unit, and the effects of multiple purposes in one cabinet and better protection are achieved.
Description
Technical field
The present invention relates to high-voltage appliance switch equipment technical field, and in particular to a kind of high-voltage switch gear with apply mechanically integrated cabinet and
High-voltage switch gear.
Background technology
The high-voltage switch gear of three phase mechanical linkage or primary cut-out point, closing operation is by operating mechanism control, actuating machine
Structure species includes hydraulic pressure, spring and electric operating mechanism.Electric operating mechanism is typically by servomotor by shaft coupling and transmission
Axle connects, and power transmission shaft drives the connecting lever that is fixed thereon to rotate, connecting lever drive insulated tension pole in the pole of breaker body on
Lower motion, insulated tension pole end connection moving contact, drives moving contact to close a floodgate upwards or divide downwards during pull bar is moved up and down
Lock action.
Due to having very strong electromagnetic field, servo electricity in the high-voltage alternating electrical environment residing for primary cut-out or high-voltage switch gear
Magnetosphere in machine etc. can be subject to outside magnetic disturbance and cause the malfunction of motor.So typically the shell of motor is made into anti-electromagnetism doing
The overcoat disturbed, can so cause motor processing cost to improve.
Authorization Notice No. discloses a kind of three-phase branch mailbox outdoor high-voltage plug group for the Chinese patent of CN201682190U
Electrical equipment is closed, the three-phase high-voltage switch is arranged in electric operating mechanism in casing, and motor output shaft is stretched out outside casing and transmission
Axle connects, and the switch board of the high-voltage switch gear is arranged in the lower section of cross beam for high-voltage circuit-breaker, is to be mounted in electric operating mechanism specially
In the casing that door is arranged, control system is set, the protection cabinet that electric operating mechanism is located is located with control system in switch board
Switch board it is arranged apart.This mode can be shielded to electric operating mechanism and protected, but due to motor place casing
For individual layer, switch board is double-deck, and the electromagnetic shielding that motor cannot be very high, the shell of motor also needs to very high electromagnetic wave shielding
Can normal work.Simultaneously as needing separately to set casing for motor, material cost, installation cost etc. is caused accordingly to improve,
And motor adds man-hour to also need to very high capability of electromagnetic shielding requirement.
The content of the invention
It is an object of the invention to provide a kind of high-voltage switch gear is with applying mechanically integrated cabinet, with solve existing electric operating mechanism and
Switch board is provided separately the technical problem for causing that system architecture complex redundancy and motor cannot be shielded very well.
For achieving the above object, high-voltage switch gear of the present invention is with the technical scheme for applying mechanically integrated cabinet：A kind of high-voltage switch gear is matched somebody with somebody
Apply mechanically integrated cabinet, including cabinet, be provided with cabinet high-voltage switch gear control unit and for cross beam for high-voltage circuit-breaker in switch
The operating mechanism of link transmission connection.
Further, the operating mechanism is electric operating mechanism.
Further, the cabinet be provided with the output shaft for actuating structure stretch out and with one end of cross beam for high-voltage circuit-breaker
The sealed interface of sealing docking.The purpose for so arranging can ensure that actuating structure seals right as far as possible with the power transmission shaft in crossbeam
Connect, reach preferably shielding electromagnetic interference and rain-proof, dust-proof purpose.
Further, the outer wall of the cabinet is double-layer shielding structure.Double-layer shielding structure can be realized to external electromagnetic
The more preferable protection of interference, is that motor creates a low electromagnetic environment in cabinet, to prevent motor malfunction in cabinet.Meanwhile, cabinet it is anti-
Rain, anti-dust performance are more preferably.In addition, cabinet outer wall is the higher double-layer shielding structure of degree of protection, then motor plus man-hour can be with
It is appropriate to reduce electric machine casing thickness, shielding parts are reduced, reduce motor cost.
Further, the cabinet is provided with the attachment structure being fixedly connected for the support post with high-voltage switch gear.Even
The setting of binding structure ensure that cabinet can be easily suspended on the support post of high-voltage switch gear, and ensure that the motor in cabinet is grasped
Motivation structure is directly docked with the power transmission shaft in crossbeam by shaft coupling, so as to using crossbeam accuracy guarantee motor output shaft, shaft coupling
The centering of section, power transmission shaft and interphase connecting rod, reduces transmission loss, improves transmission efficiency.
Further, the cabinet is divided into upper and lower two-layer by central dividing plate, and the operating mechanism is located at the upper strata of cabinet,
Described control unit is located at the lower floor of cabinet.Being layered the purpose for arranging by dividing plate causes operating mechanism and control unit mutually not to do
Disturb, the heat produced during motor rotation is also without interference with the control unit of bottom.
Further, the upper strata of the cabinet is provided with ventilating opening and gas extraction system.Generate heat when being rotated due to upper strata motor, and
Heat rises with gas, and arrange ventilating opening and gas extraction system on top preferably can radiate to electric operating mechanism.
The present invention also aims to provide a kind of height of the high voltage control cabinet with integrated electric operating mechanism of the invention
Compress switch.
The technical scheme of high-voltage switch gear of the present invention is：High-voltage switch gear, including crossbeam and the breaker body being located on crossbeam,
Breaker body includes the power transmission shaft being located in crossbeam, it is characterised in that：High-voltage switch gear also includes that high-voltage switch gear is matched somebody with somebody and applies mechanically integrated
Cabinet, high-voltage switch gear is provided with control unit and operating mechanism, the output shaft of operating mechanism with integrated cabinet is applied mechanically including cabinet in cabinet
It is connected with transmission shaft driven.
Further, the operating mechanism is electric operating mechanism.
Further, the cabinet be provided with the output shaft for actuating structure stretch out and with one end of cross beam for high-voltage circuit-breaker
The sealed interface of sealing docking.The purpose for so arranging can ensure that actuating structure seals right as far as possible with the power transmission shaft in crossbeam
Connect, reach preferably shielding electromagnetic interference and rain-proof, dust-proof purpose.
Further, the outer wall of the cabinet is double-layer shielding structure.Double-layer shielding structure can be realized to external electromagnetic
The more preferable protection of interference, is that motor creates a low electromagnetic environment in cabinet, to prevent motor malfunction in cabinet.Meanwhile, cabinet it is anti-
Rain, anti-dust performance are more preferably.In addition, cabinet outer wall is the higher double-layer shielding structure of degree of protection, then motor plus man-hour can be with
It is appropriate to reduce electric machine casing thickness, shielding parts are reduced, reduce motor cost.
Further, the cabinet is provided with the attachment structure being fixedly connected for the support post with high-voltage switch gear.Even
The setting of binding structure ensure that cabinet can be easily suspended on the support post of high-voltage switch gear, and ensure that the motor in cabinet is grasped
Motivation structure is directly docked with the power transmission shaft in crossbeam by shaft coupling, so as to using crossbeam accuracy guarantee motor output shaft, shaft coupling
The centering of section, power transmission shaft and interphase connecting rod, reduces transmission loss, improves transmission efficiency.
Further, the cabinet is divided into upper and lower two-layer by central dividing plate, and the operating mechanism is located at the upper strata of cabinet,
Described control unit is located at the lower floor of cabinet.Being layered the purpose for arranging by dividing plate causes operating mechanism and control unit mutually not to do
Disturb, the heat produced during motor rotation is also without interference with the control unit of bottom.
Further, the upper strata of the cabinet is provided with ventilating opening and gas extraction system.Generate heat when being rotated due to upper strata motor, and
Heat rises with gas, and arrange ventilating opening and gas extraction system on top preferably can radiate to electric operating mechanism.
Further, Crankarm box is provided with the crossbeam, the connecting lever being connected with the power transmission shaft, connecting lever is provided with Crankarm box
Be provided with box drive moving contact to move to point in connecting lever, carry out the dividing of block at closing position to connecting lever respectively, combined floodgate stop block.
The generation of overshoot phenomenon when the setting of stop block can be prevented effectively from moving contact divide-shut brake action, improves the controllable of divide-shut brake action
Property.
The high-voltage switch gear of the present invention is with applying mechanically integrated cabinet beneficial effect：Matched somebody with somebody using the high-voltage switch gear of the present invention and apply mechanically integrated
Cabinet, electric operating mechanism and control unit are integrated in the double layer screen cabinet of high-protection level, reach protection more preferable to motor
While also can reduce to motor plus its electromagnetism interference performance of man-hour requirement, reduce motor processing cost, meanwhile, without
It is that electric operating mechanism and control unit set up protective housing separately, reaches one case multiplex, protection more preferably effect.
The beneficial effect of high-voltage switch gear of the present invention, the high-voltage switch gear using the present invention is high as the present invention with integrated cabinet is applied mechanically
When the supporting integrated cabinet for compressing switch is used, with integrated cabinet identical beneficial effect is applied mechanically, it is with the high-voltage switch gear of the present invention
Avoid repeating, repeat no more.
Description of the drawings
Fig. 1 is the specific embodiment internal structure schematic diagram of high-voltage switch gear of the present invention；
Fig. 2 is Fig. 1 outsides overall structure diagram；
Fig. 3 is the enlarged drawing in Fig. 1 at A；
In figure：1- breaker bodies, 2- high-voltage switch gears with applying mechanically integrated cabinet, 21- cabinets, 211- dividing plates, 212- control units,
22- attachment structures, 3- electric operating mechanisms, 4- shaft couplings, 5- Crankarm boxes, 6- power transmission shafts, 7- insulated tension poles, 8- moving contacts, 9-
Interphase connecting rod, 10- crossbeams, 11- support posts.
Specific embodiment
Embodiments of the present invention are described further below in conjunction with the accompanying drawings.
The specific embodiment of the high-voltage switch gear of the present invention, as shown in Fig. 2 high-voltage switch gear is including crossbeam 10, positioned at crossbeam 10
Three of top equidistantly the breaker body 1 of arrangement, hang on the high-voltage switch gear of the side of crossbeam 10 with applying mechanically integrated cabinet 2.
Electric operating mechanism 3 and control unit 212 are arranged in the same cabinet 21 with double-layer shielding structure, or
Person is integrated into conventional motors operating mechanism 3 in switch board, is tied using the double layer screen of original switch board high-protection level itself
Structure, can also reduce the requirement to motor plus its electromagnetism interference performance of man-hour while reaching protection more preferable to motor, reduce electricity
Machining cost, meanwhile, the protective housing of original electric operating mechanism 3 is also saved, reach maximally utilizing for switch board.
As shown in figure 1, high-voltage switch gear includes cabinet 21 and the electric operating mechanism in cabinet 21 with integrated cabinet 2 is applied mechanically
3, in other embodiments, there is the high-voltage switch gear that the spring operating mechanism that motor drives may alternatively be integrated within the present invention to match somebody with somebody and apply mechanically integrated
In cabinet 2.
Cabinet 21 is double-layer shielding structure, with to the more preferable capability of electromagnetic shielding of motor in cabinet, is also had accordingly more
Good rain-proof dust-proof performance.Because cabinet 21 has been provided with very high capability of electromagnetic shielding, the motor in cabinet can be fitted in production
When lowering the requirement, electromagnetic shielding component can be reduced, and reduce motor processing cost.
Cabinet 21 is classified as upper and lower two-layer, and opposing seal between two-layer by being located at the dividing plate 211 of centre, it is ensured that two
Will not interfere between person, the heat for especially producing during motor rotation does not interfere with control unit 212.
The attachment structure 22 being connected for the support post 11 with crossbeam 10 is additionally provided with outside cabinet 21, to ensure that cabinet can
To be suspended on the support post 11 of crossbeam 10, and the output shaft of the electric operating mechanism 3 in cabinet 21 is set to stretch out on cabinet 21
Sealed interface, realize being docked with power transmission shaft 6 in crossbeam 10.Sealed interface on cabinet 21 can ensure after docking with crossbeam
The sealing of cabinet 21 and the interface of crossbeam 10, it is ensured that the integral sealing of cabinet 21, to reach to the motor actuating machine in cabinet 21
Preferably electromagnetic shielding and the rain-proof dust-proof effect of structure 3.
Electric operating mechanism 3 is arranged in the upper strata of cabinet 21, in other embodiments, can be required to close according to in-site installation
Removing the work puts position of the electric operating mechanism 3 in cabinet 21, may be located at the middle part even bottom of cabinet 21.Control unit 212
Positioned at the lower floor of cabinet 21, to ensure that electric operating mechanism is arranged with the layering of control unit 212, so arrange and can guarantee that motor is grasped
Motivation structure does not mutually interfere with each other with control unit 212, and the heat that especially motor control unit is produced does not interfere with control unit
212。
The side that the vertical cabinet 21 of output shaft of electric operating mechanism 3 is contacted with crossbeam 10, and through the side and crossbeam
Power transmission shaft 6 inside 10 is connected by shaft coupling 4, in other embodiments, electric operating mechanism 3 and the side of cabinet 21 without
Completely vertical, herein vertical simply considers that cabinet 21 is easy to connect with crossbeam 10, can be defeated according to the adjustment of in-site installation situation
Shaft and the angle of the side of cabinet 21.When the output shaft of electric operating mechanism 3 is connected with shaft coupling 4, it is ensured that cabinet 21 and crossbeam
The closure of 10 junctions, plays the purpose of anti-electromagnetic interference and dust storm rain erosion.Air vent and row are designed with cabinet 21
Gas system, to keep the suitable temperature ranges in cabinet 21.
As shown in figure 3, having Crankarm box 5 in crossbeam 10, passing through in Crankarm box 5 has power transmission shaft 6, the periphery on power transmission shaft 6
On be connected with connecting lever, insulated tension pole 7 is connected with connecting lever, in the arc-chutes of the other end connection breaker body 1 of insulated tension pole 7
Moving contact 8.When motor is rotated, the output shaft of drive motor operating mechanism 3, shaft coupling 4, power transmission shaft 6,9 turns of interphase connecting rod successively
Dynamic, the rotation of power transmission shaft 6 drives connecting lever thereon to rotate, and connecting lever drives insulated tension pole 7 to move up and down, and converts rotational motion into
Linear motion, then drives moving contact 8 thereon in arc extinguishing room point, feed motion.
Electric operating mechanism 3 be set to can only in the half cycle of 180 degree reciprocating rotation, so as to drive connecting lever from the top
Extreme position moves to the extreme position of bottom, and this is sub-switching operation；Or drive connecting lever to transport from the extreme position of bottom
The extreme position to the top is moved, this is closing operation.
It is provided with Crankarm box and drive moving contact to move to point in connecting lever, respectively block carried out to connecting lever at closing position
Point, combined floodgate stop block, carry out during position block for reaching the limit of to connecting lever, prevent connecting lever cross stroke cause 8 points of moving contact, close
Occurs overshoot phenomenon during lock.
High-voltage switch gear of the present invention is during whole use：
Plus man-hour, because original switch board cabinet is the higher double-layer shielding structure of degree of protection, electric operating mechanism 3 is being pacified
Be mounted in its it is interior when there is well shielding and barrier propterty, therefore do not need motor to have very high shielding and barrier propterty both
Can meet and require, to save the processing cost of motor.Only need to rearrange device in cabinet on the basis of original switch board cabinet
The position of part so that electric operating mechanism 3 is rationally fixed in switch board cabinet, and the output shaft of electric operating mechanism 3 stretches out
Position suitable.
During installation, the protection cabinet of original electric operating mechanism 3 is saved, switch board is directly suspended on the side of crossbeam 10
Side, with corresponding attachment structure 22 by switch board fixation, needed to ensure in switch board before fixed switch board
The output shaft of electric operating mechanism 3 is connected in place with the shaft coupling 4 in crossbeam 10.
The high-voltage switch gear of the present invention is with the specific embodiment and each specific embodiment of high-voltage switch gear of the present invention for applying mechanically integrated cabinet
In high-voltage switch gear with apply mechanically integrated cabinet specific embodiment it is identical, here is omitted.
Claims (15)
1. a kind of high-voltage switch gear is with applying mechanically integrated cabinet, it is characterised in that：Including cabinet, high-voltage switch gear control unit is provided with cabinet
With the operating mechanism for being connected with the transmission shaft driven in cross beam for high-voltage circuit-breaker.
2. high-voltage switch gear according to claim 1 is with applying mechanically integrated cabinet, it is characterised in that：The operating mechanism is motor behaviour
Motivation structure.
3. high-voltage switch gear according to claim 1 and 2 is with applying mechanically integrated cabinet, it is characterised in that：The cabinet is provided with confession
The sealed interface that the output shaft of actuating structure stretches out and docks with one end sealing of cross beam for high-voltage circuit-breaker.
4. high-voltage switch gear according to claim 1 and 2 is with applying mechanically integrated cabinet, it is characterised in that：The outer wall of the cabinet is
Double-layer shielding structure.
5. high-voltage switch gear according to claim 1 and 2 is with applying mechanically integrated cabinet, it is characterised in that：The cabinet is provided with use
In the attachment structure that the support post with high-voltage switch gear is fixedly connected.
6. high-voltage switch gear according to claim 1 and 2 is with applying mechanically integrated cabinet, it is characterised in that：The cabinet is by centre
Dividing plate is divided into upper and lower two-layer, and the operating mechanism is located at the upper strata of cabinet, and described control unit is located at the lower floor of cabinet.
7. high-voltage switch gear according to claim 6 is with applying mechanically integrated cabinet, it is characterised in that：The upper strata of the cabinet is provided with logical
Air port and gas extraction system.
8. high-voltage switch gear, including crossbeam and the breaker body being located on crossbeam, breaker body includes the biography being located in crossbeam
Moving axis, it is characterised in that：High-voltage switch gear also includes that high-voltage switch gear includes cabinet with integrated cabinet, high-voltage switch gear is applied mechanically with integrated cabinet is applied mechanically
Body, is provided with control unit and operating mechanism in cabinet, the output shaft of operating mechanism is connected with transmission shaft driven.
9. high-voltage switch gear according to claim 8, it is characterised in that：The operating mechanism is electric operating mechanism.
10. high-voltage switch gear according to claim 8 or claim 9, it is characterised in that：The cabinet is provided with for the defeated of actuating structure
The sealed interface that shaft stretches out and docks with one end sealing of cross beam for high-voltage circuit-breaker.
11. high-voltage switch gears according to claim 8 or claim 9, it is characterised in that：The outer wall of the cabinet is double layer screen knot
Structure.
12. high-voltage switch gears according to claim 8 or claim 9, it is characterised in that：The cabinet be provided with for high-voltage switch gear
The attachment structure that is fixedly connected of support post.
13. high-voltage switch gears according to claim 8 or claim 9, it is characterised in that：The cabinet is divided into up and down by central dividing plate
Two-layer, the operating mechanism is located at the upper strata of cabinet, and described control unit is located at the lower floor of cabinet.
14. high-voltage switch gears according to claim 13, it is characterised in that：The upper strata of the cabinet is provided with ventilating opening and exhaust
System.
15. high-voltage switch gear according to claim 8 or claim 9, it is characterised in that：Crankarm box, Crankarm box are provided with the crossbeam
Inside be provided with the connecting lever being connected with the power transmission shaft, be provided with Crankarm box drive moving contact to move to point in connecting lever, at closing position
Connecting lever is carried out respectively block point, combined floodgate stop block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610975195.0A CN106653419A (en) | 2016-11-07 | 2016-11-07 | High-voltage switch supporting integrated cabinet and high-voltage switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610975195.0A CN106653419A (en) | 2016-11-07 | 2016-11-07 | High-voltage switch supporting integrated cabinet and high-voltage switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106653419A true CN106653419A (en) | 2017-05-10 |
Family
ID=58805278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610975195.0A Pending CN106653419A (en) | 2016-11-07 | 2016-11-07 | High-voltage switch supporting integrated cabinet and high-voltage switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106653419A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109741986A (en) * | 2019-01-09 | 2019-05-10 | 江苏现代电力科技股份有限公司 | Grasp bar maintenance type integral and intelligent high-voltage switch gear |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5357068A (en) * | 1991-11-20 | 1994-10-18 | Gec Alsthom Sa | Sulfur hexafluoride isolating circuit-breaker and use thereof in prefabricated stations, substations, and bays |
| CN2796203Y (en) * | 2005-02-05 | 2006-07-12 | 冯慧 | Box type gas insulation metal seal closed switch device |
| CN202019208U (en) * | 2011-04-29 | 2011-10-26 | 上海宇帆电气有限公司 | Improved intelligent charging machine |
| CN104037640A (en) * | 2013-09-12 | 2014-09-10 | 袁茂银 | Sealed type switch cabinet |
| CN105162025A (en) * | 2015-07-28 | 2015-12-16 | 国家电网公司 | Breaker air chamber and double-isolation feed line cabinet with the breaker gas chamber |
| CN106158494A (en) * | 2016-08-02 | 2016-11-23 | 平高集团有限公司 | Breaker operation mechanism and use the chopper of this mechanism, high-voltage switch gear |
-
2016
- 2016-11-07 CN CN201610975195.0A patent/CN106653419A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5357068A (en) * | 1991-11-20 | 1994-10-18 | Gec Alsthom Sa | Sulfur hexafluoride isolating circuit-breaker and use thereof in prefabricated stations, substations, and bays |
| CN2796203Y (en) * | 2005-02-05 | 2006-07-12 | 冯慧 | Box type gas insulation metal seal closed switch device |
| CN202019208U (en) * | 2011-04-29 | 2011-10-26 | 上海宇帆电气有限公司 | Improved intelligent charging machine |
| CN104037640A (en) * | 2013-09-12 | 2014-09-10 | 袁茂银 | Sealed type switch cabinet |
| CN105162025A (en) * | 2015-07-28 | 2015-12-16 | 国家电网公司 | Breaker air chamber and double-isolation feed line cabinet with the breaker gas chamber |
| CN106158494A (en) * | 2016-08-02 | 2016-11-23 | 平高集团有限公司 | Breaker operation mechanism and use the chopper of this mechanism, high-voltage switch gear |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109741986A (en) * | 2019-01-09 | 2019-05-10 | 江苏现代电力科技股份有限公司 | Grasp bar maintenance type integral and intelligent high-voltage switch gear |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170510 |
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| RJ01 | Rejection of invention patent application after publication |