CN106449197B - A kind of on-load switch and its operating mechanism - Google Patents
A kind of on-load switch and its operating mechanism Download PDFInfo
- Publication number
- CN106449197B CN106449197B CN201610853473.5A CN201610853473A CN106449197B CN 106449197 B CN106449197 B CN 106449197B CN 201610853473 A CN201610853473 A CN 201610853473A CN 106449197 B CN106449197 B CN 106449197B
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- divide
- driving motor
- shut brake
- load switch
- brake handle
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- 230000007246 mechanism Effects 0.000 title claims abstract description 120
- 238000005096 rolling process Methods 0.000 claims abstract description 6
- 238000012544 monitoring process Methods 0.000 claims description 29
- 230000002093 peripheral effect Effects 0.000 claims description 11
- 238000004891 communication Methods 0.000 claims description 8
- 238000009826 distribution Methods 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 5
- 230000006870 function Effects 0.000 claims description 4
- 230000006698 induction Effects 0.000 claims description 3
- 230000008450 motivation Effects 0.000 claims description 2
- 238000005259 measurement Methods 0.000 claims 2
- 238000006073 displacement reaction Methods 0.000 claims 1
- 238000004804 winding Methods 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 238000013475 authorization Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
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
- H01H3/00—Mechanisms for operating contacts
- H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
- H01H3/46—Driving mechanisms, i.e. for transmitting driving force to the contacts using rod or lever linkage, e.g. toggle
Landscapes
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The present invention relates to a kind of on-load switch and its operating mechanisms, on-load switch operating mechanism includes the manual operation mechanism for being mounted on the switch main box of on-load switch, the manual operation mechanism includes the divide-shut brake handle for rolling assembling on switch main box, on-load switch operating mechanism further includes driving motor, active connecting lever is installed on the output shaft of driving motor, active connecting lever is sequentially connected by kinematic link and the divide-shut brake handle, active connecting lever, kinematic link and divide-shut brake handle constitute crank and rocker mechanism so that driving motor drives divide-shut brake handle to swing during rotation carries out electronic breaking-closing operating.In on-load switch operating mechanism provided by the present invention, electronic breaking-closing operating can be realized using driving motor and crank and rocker mechanism, overall structure is relatively simple, production, using more convenient, is convenient for product installation maintenance.
Description
Technical field
The present invention relates to a kind of on-load switch and its operating mechanisms.
Background technique
To realize that production, transmission and the distribution of electric energy will also have various shapes other than generator, transformer and power transmission line
The device for switching of formula closes and cut-offs circuit.Wherein, it is known as load for cut-offfing and close the electric switch of load current to open
It closes, on-load switch does not have cutting and closes the ability of short circuit current.On-load switch is mainly used for the low capacity distribution of 10-35kV
In system.Moreover, in order to cut off failure in time when short trouble occurs for electric system, on-load switch usually joins with fuse
Application is closed, failure and excision failure are judged by fuse.
On-load switch is substantially considered as a kind of lower breaker of connecting-disconnecting function, equally has for carrying out division
The dynamic/static contact of movement and corresponding operating mechanism control moving contact movement by operating mechanism output driving power to be divided
Closing operation.
It is disclosed in the Chinese utility model patent that Authorization Notice No. is CN205303294U a kind of using permanent-magnet type behaviour
The column load switch of motivation structure, including switch main box, the outside for switching main box is fixed with mechanism case, is equipped in mechanism case
Permanent-magnet type operating mechanism, permanent-magnet type operating mechanism are equipped with electronic divide-shut brake permanent magnet driving device, are additionally provided in mechanism case and divide manually
Closing mechanism, the interior division swing arm for being equipped with corresponding interlocking of switch main box and manual connecting lever, electronic divide-shut brake permanent magnetic drive
Device is connect with division swing arm, and manual divide-shut brake operating mechanism includes the divide-shut brake handle with the transmission connection of manual connecting lever, division
The forward and reverse rotation of lock handle can carry out manual divide-shut brake operation, pass through electronic divide-shut brake permanent magnet driving device and manual divide-shut brake
Operating mechanism is corresponding to realize electronic, manual divide-shut brake operation.
But it is above-mentioned it is this itself configured with electronic, manual operation mechanism on-load switch structure it is complex, cost is opposite
Higher, assembling maintenance is also more inconvenient, and to be unable to satisfy distribution automatic for the existing only on-load switch with manual operation mechanism
Change construction, application field is limited.
Summary of the invention
The purpose of the present invention is to provide a kind of on-load switch operating mechanisms, to solve that electricity is separately configured in the prior art
The technical problem that dynamic, manual operation mechanism causes on-load switch overall structure complex；Meanwhile the present invention also provides one kind to make
With the on-load switch of above-mentioned operating mechanism.
To achieve the above object, the technical solution of on-load switch operating mechanism provided by the present invention is: a kind of load is opened
Operating mechanism is closed, including the manual operation mechanism for being mounted on the switch main box of on-load switch, the manual operation mechanism
Including the divide-shut brake handle for rolling assembling on switch main box, on-load switch operating mechanism further includes driving motor, is driven
Active connecting lever is installed on the output shaft of dynamic motor, active connecting lever is sequentially connected by kinematic link and the divide-shut brake handle,
Active connecting lever, kinematic link and divide-shut brake handle constitute crank and rocker mechanism so that driving motor drive during rotation divides
Switch lever, which is swung, carries out electronic breaking-closing operating.
The swing of divide-shut brake handle is driven to realize that electronic divide-shut brake is grasped by active connecting lever, kinematic link driving motor
Rotation direction when making, which is set to, to rotate forward, and the output shaft of driving motor is equipped with for avoiding driving motor from rotating backward and shadow
Ring the freewheel clutch of the crank and rocker mechanism.
On-load switch operating mechanism includes the mechanism case for being mounted on outside switch main box, and the driving motor is arranged in
In the mechanism case, the control for the control driving motor stalling in on-load switch combined floodgate or separating brake is additionally provided in mechanism case
Microswitch and monitoring microswitch for monitoring on-load switch opening and closing state, the output shaft of driving motor, which is equipped with, to be used for
It triggers the control microswitch and monitors the microswitch baffle of microswitch.
On the divide-shut brake handle at the center position of divide-shut brake handle fixed divide-shut brake pointer, the mechanism case
It is equipped with the divide-shut brake direction board used with the divide-shut brake pointer corresponding matching.
The technical solution of on-load switch provided by the present invention using above-mentioned operating mechanism is: a kind of on-load switch, packet
Switch main box is included, switch main box is equipped with on-load switch operating mechanism, and on-load switch operating mechanism includes manual actuating machine
Structure, manual operation mechanism include divide-shut brake handle of the rolling assembling on switch main box, and on-load switch operating mechanism further includes
Driving motor, active connecting lever is installed on the output shaft of driving motor, and active connecting lever passes through kinematic link and the divide-shut brake hand
Handle transmission connection, active connecting lever, kinematic link and divide-shut brake handle constitute crank and rocker mechanism so that driving motor is rotating
Driving divide-shut brake handle, which is swung, in the process carries out electronic breaking-closing operating.
The swing of divide-shut brake handle is driven to realize that electronic divide-shut brake is grasped by active connecting lever, kinematic link driving motor
Rotation direction when making, which is set to, to rotate forward, and the output shaft of driving motor is equipped with for avoiding driving motor from rotating backward and shadow
Ring the freewheel clutch of the crank and rocker mechanism.
On-load switch operating mechanism includes the mechanism case for being mounted on outside switch main box, and the driving motor is arranged in
In the mechanism case, the control for the control driving motor stalling in on-load switch combined floodgate or separating brake is additionally provided in mechanism case
Microswitch and monitoring microswitch for monitoring on-load switch opening and closing state, the output shaft of driving motor, which is equipped with, to be used for
It triggers the control microswitch and monitors the microswitch baffle of microswitch.
On the divide-shut brake handle at the center position of divide-shut brake handle fixed divide-shut brake pointer, the mechanism case
It is equipped with the divide-shut brake direction board used with the divide-shut brake pointer corresponding matching.
It is equipped with current transformer in the switchgear main box, is equipped in mechanism case and is correspondingly connected with above-mentioned current transformer
Thread plug, be additionally provided on mechanism case and be correspondingly connected with thread plug to realize that current transformer and peripheral control unit communication connect
The aviation plug connect.
It is equipped with terminal block in the mechanism case, the motor signal line for controlling driving motor work is connected in terminal block
With the switch signal line for exporting the monitoring microswitch monitoring signals, thread plug and the terminal block connect induction signal
Connect, the terminal block by the aviation plug connect with the peripheral control unit with realize current transformer, driving motor and
The communication connection of the monitoring microswitch and the peripheral control unit.
The beneficial effects of the present invention are: in on-load switch operating mechanism provided by the present invention, active connecting lever, kinematic link
And divide-shut brake handle forms crank and rocker mechanism, is acted by driving motor driving active connecting lever, kinematic link, and then is driven division
Lock handle is swung, and realizes electronic breaking-closing operating.In on-load switch operating mechanism provided by the present invention, using driving motor and
Electronic breaking-closing operating can be realized in crank and rocker mechanism, and overall structure is relatively simple, production, using more convenient, is convenient for
Product installation maintenance.
Further, freewheel clutch is set on the output shaft of driving motor, when driving motor being avoided to rotate backward pair
Crank and rocker mechanism impacts.
Further, on divide-shut brake handle at the center position of divide-shut brake handle fixed divide-shut brake pointer, be convenient for
Operator's observation, prevents maloperation.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of embodiment of on-load switch provided by the present invention；
Fig. 2 is the structural schematic diagram of the crank and rocker mechanism of on-load switch shown in Fig. 1；
Fig. 3 is the bottom view of on-load switch shown in Fig. 1.
Specific embodiment
Embodiments of the present invention are described further with reference to the accompanying drawing.
The specific embodiment of on-load switch provided by the present invention, as shown in Figure 1 to Figure 3, the load in the embodiment are opened
Closing includes switch main box 1, and switch main box 1 is equipped with corresponding static contact and moving contact, and switch main box 1 is equipped with load
Switch operation mechanism, to drive moving contact to act, closing and cut-off by control dynamic/static contact realizes the division of on-load switch
Lock operation.
In the present embodiment, on-load switch operating mechanism includes manual operation mechanism, the mechanism of the manual operation mechanism and existing
There is the structure of the manual operation mechanism in the on-load switch in technology identical, no longer excessively repeats herein.
Manual operation mechanism includes divide-shut brake handle 2 of the rolling assembling on switch main box, in use, can be by operator
2 reciprocally swinging of member's manual actuation divide-shut brake handle is to realize breaking-closing operating.
Unlike on-load switch operating mechanism in the prior art, the on-load switch operating mechanism in the present embodiment is also
Electronic breaking-closing operating can be carried out, on-load switch operating mechanism includes driving motor 7, and driving motor 7 is fixedly mounted on mechanism case 6
On the motor mounting plate 10 that inside is equipped with, active connecting lever 32 is installed on the output shaft 33 of the driving motor 7, active connecting lever 32 is logical
It crosses kinematic link 31 and divide-shut brake handle 2 is sequentially connected, both ends correspondence and the active connecting lever 32, divide-shut brake handle of kinematic link 31
2 are hinged so that active connecting lever 32, kinematic link 31 and divide-shut brake handle 2 constitute crank and rocker mechanism 3 and so driving
Divide-shut brake handle 2 can be driven to swing to carry out electronic breaking-closing operating in 31 rotation process of output shaft of dynamic motor 7.
In the present embodiment, divide-shut brake handle 2 is driven to swing by active connecting lever 32, kinematic link 31 driving motor 7
And then the rotation direction for realizing when electronic breaking-closing operating is set to and rotates forward, the output shaft of driving motor 7 be equipped with surmount from
Clutch avoids crank from shaking to guarantee only to rotate forward Shi Caixiang crank and rocker mechanism output driving active force in driving motor
Linkage, which rotates backward, to be interfered.
In addition, on-load switch operating mechanism includes the mechanism case 6 for being mounted below switch main box, mechanism herein
Case 6 is as supporting leg to be mounted on corresponding brace foundation.Above-mentioned driving motor 7 is corresponding to be arranged in mechanism case 6, and
And it is additionally provided with the control microswitch 81 for controlling driving motor stalling when on-load switch closes a floodgate in mechanism case 6 and uses
It is equipped in the output shaft 31 of the monitoring microswitch 82 of monitoring on-load switch opening and closing state, driving motor 7 for triggering control
The microswitch baffle 9 of microswitch 81 processed and monitoring microswitch 82.
Specifically, the structure of control microswitch 81 and monitoring microswitch 82 and microswitch in the prior art
Structure is identical, includes that an opened point and a normally closed point, structure repeat no more.
In the present embodiment, microswitch baffle 9 is micro- with control microswitch machine and monitoring during on-load switch separating brake
Dynamic switch is detached from, and contact in on-load switch making process with control microswitch and monitoring microswitch micro- accordingly to trigger
Dynamic switch.
When control microswitch is triggered, driving motor stops operating, and indicates to close a floodgate and complete, effectively avoids the behaviour that closed a floodgate
Make.
When monitoring microswitch is triggered, monitoring microswitch issues switching signal, indicates that on-load switch is in combined floodgate
State.
It is equipped with divide-shut brake direction board 4 in one end of the correspondence divide-shut brake handle of mechanism case, is corresponded on the divide-shut brake direction board 4
Combined floodgate indicating area and separating brake indicating area, on divide-shut brake handle 2 fixed point at the center position of divide-shut brake handle
Closing pointer 5, divide-shut brake pointer 5 and divide-shut brake direction board 4 are used cooperatively to mark the divide-shut brake of on-load switch operating mechanism to grasp
Make.
In on-load switch operating mechanism provided by the present embodiment, active connecting lever 32, kinematic link 32 and divide-shut brake handle 2
Crank and rocker mechanism 3 is constituted, active connecting lever 32 is used as crank, and divide-shut brake handle 2 is used as rocking bar, actively turns in driving motor driving
When arm rotates, divide-shut brake handle can be driven to carry out reciprocating swing, to realize electronic breaking-closing operating.
In addition, being equipped with current transformer (not shown) in switch main box 1, it is equipped with and above-mentioned electricity in mechanism case 6
The thread plug 12 that current transformer is correspondingly connected with, i.e. 13P terminal are additionally provided on mechanism case and are correspondingly connected with thread plug 12 with reality
The aviation plug 13 of existing current transformer and peripheral control unit communication connection.
In fact, being equipped with terminal block 11 in mechanism case 6 for optimization layout, being connected in terminal block 11 and driven for controlling
The motor signal line that dynamic motor 7 works and the switch signal line for 82 monitoring signals of output monitoring microswitch, thread plug
12 connect induction signal with terminal block 11, and terminal block 11 is connect with peripheral control unit by aviation plug 13 to realize Current Mutual Inductance
The communication connection of device, driving motor and the monitoring microswitch and the peripheral control unit, and then realize distribution automation function
Energy.
In the present embodiment, when setting freewheel clutch rotates backward on the output shaft of driving motor to avoid driving motor
It is impacted to crank and rocker mechanism.
In the present embodiment, set up an organization case below switch main box, on the one hand mechanism case is used for cloth centrally-mounted driving etc.
On the other hand structure is also used as support leg structure, in this way convenient for the on-load switch with manual operation mechanism in the prior art
On be transformed.In other embodiments, it if the mechanism case in addition added can also be saved when directly designing, will directly drive
The structures such as dynamic motor are arranged in switch main box.
In the present embodiment, realized using divide-shut brake direction board and monitoring microswitch to on-load switch breaking-closing operating
Monitoring, in other embodiments, can also only be arranged a kind of monitor mode.
The present invention also provides a kind of embodiment of on-load switch operating mechanism, the structure of the operating mechanism in the embodiment with
The structure of operating mechanism in above-mentioned on-load switch embodiment is identical, and details are not described herein.
Claims (6)
1. a kind of on-load switch operating mechanism, including the manual actuating machine for being mounted on the switch main box of on-load switch
Structure, the manual operation mechanism include the divide-shut brake handle for rolling assembling on switch main box, it is characterised in that: load is opened
Closing operating mechanism further includes driving motor, and active connecting lever is installed on the output shaft of driving motor, and active connecting lever is connected by transmission
Bar and the divide-shut brake handle are sequentially connected, active connecting lever, kinematic link and divide-shut brake handle constitute crank and rocker mechanism so that
Obtain driving motor drives divide-shut brake handle to swing the electronic breaking-closing operating of progress during rotation；On-load switch operating mechanism packet
The mechanism case for being mounted on outside switch main box is included, the driving motor is arranged in the mechanism case, in mechanism case also
Equipped with for controlling the control microswitch of driving motor stalling in on-load switch combined floodgate or separating brake and being opened for monitoring load
The monitoring microswitch of opening and closing state is closed, the output shaft of driving motor is equipped with for triggering the control microswitch and prison
Control the microswitch baffle of microswitch；It is equipped with current transformer in switch main box, is equipped in mechanism case and Current Mutual Inductance
The thread plug that device is correspondingly connected with is additionally provided on mechanism case and is correspondingly connected with thread plug to realize current transformer and external control
The aviation plug of device communication connection processed；It is equipped with terminal block in mechanism case, is connected in terminal block for controlling driving motor work
The motor signal line of work and switch signal line for output monitoring jogging switches measurement signal, thread plug are corresponding with terminal block
Signal connection, terminal block are connect to realize that current transformer, driving motor and monitoring are micro- with peripheral control unit by aviation plug
The communication connection of dynamic switch and peripheral control unit, and then realize distribution automation function.
2. on-load switch operating mechanism according to claim 1, it is characterised in that: by driving motor by active connecting lever,
Kinematic link driving divide-shut brake handle swings and then realizes that rotation direction when electronic breaking-closing operating is set to and rotates forward, and drives
It is equipped between motor and crank and rocker mechanism only when driving motor is rotated forward to the super of crank and rocker mechanism output driving power
More clutch.
3. on-load switch operating mechanism according to claim 1, it is characterised in that: in divide-shut brake on the divide-shut brake handle
Fixed divide-shut brake pointer at the center position of handle, the mechanism case is equipped with to be made with the divide-shut brake pointer corresponding matching
Divide-shut brake direction board.
4. a kind of on-load switch, including switch main box, switch main box is equipped with on-load switch operating mechanism, on-load switch behaviour
Motivation structure includes manual operation mechanism, and manual operation mechanism includes divide-shut brake handle of the rolling assembling on switch main box,
Be characterized in that: on-load switch operating mechanism further includes driving motor, and active connecting lever is installed on the output shaft of driving motor, actively
Connecting lever is sequentially connected by kinematic link and the divide-shut brake handle, and active connecting lever, kinematic link and divide-shut brake handle constitute bent
Handle rocker device carries out electronic breaking-closing operating so that driving motor drives divide-shut brake handle to swing during rotation；Load
Switch operation mechanism includes the mechanism case for being mounted on outside switch main box, and the driving motor is arranged in the mechanism case
In, be additionally provided in mechanism case for close a floodgate in on-load switch or when separating brake the control microswitch of control driving motor stalling and
For monitoring the monitoring microswitch of on-load switch opening and closing state, the output shaft of driving motor is equipped with for triggering the control
The microswitch baffle of microswitch processed and monitoring microswitch；It is equipped with current transformer in switch main box, in mechanism case
Equipped with the thread plug being correspondingly connected with current transformer, it is additionally provided on mechanism case and is correspondingly connected with thread plug to realize electric current
The aviation plug of mutual inductor and peripheral control unit communication connection；It is equipped with terminal block in mechanism case, is connected with and is used in terminal block
The motor signal line of driving motor work and the switch signal line for output monitoring jogging switches measurement signal are controlled, winding displacement is inserted
Head and terminal block connect induction signal, and terminal block is connect to realize current transformer, drive with peripheral control unit by aviation plug
Dynamic motor and the communication connection for monitoring microswitch and peripheral control unit, and then realize distribution automation function.
5. on-load switch according to claim 4, it is characterised in that: driving motor is passed through active connecting lever, kinematic link
Driving divide-shut brake handle is swung and then the rotation direction of realizing when electronic breaking-closing operating is set to and rotates forward, driving motor it is defeated
Shaft is equipped with for avoiding driving motor from rotating backward and influences the freewheel clutch of the crank and rocker mechanism.
6. on-load switch according to claim 4, it is characterised in that: turn on the divide-shut brake handle in divide-shut brake handle
The dynamic fixed divide-shut brake pointer of center position, the mechanism case are equipped with the division used with the divide-shut brake pointer corresponding matching
Lock direction board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610853473.5A CN106449197B (en) | 2016-09-27 | 2016-09-27 | A kind of on-load switch and its operating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610853473.5A CN106449197B (en) | 2016-09-27 | 2016-09-27 | A kind of on-load switch and its operating mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106449197A CN106449197A (en) | 2017-02-22 |
| CN106449197B true CN106449197B (en) | 2019-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610853473.5A Active CN106449197B (en) | 2016-09-27 | 2016-09-27 | A kind of on-load switch and its operating mechanism |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2454888Y (en) * | 2000-12-15 | 2001-10-17 | 宁波天安（集团）股份有限公司 | Hand, electric two-purpose operation mechanism of outdoor load switch |
| CN102543550A (en) * | 2012-02-10 | 2012-07-04 | 成都中工电气工程有限公司 | Direct current isolation switch for rail transit |
| CN202513111U (en) * | 2012-04-11 | 2012-10-31 | 珠海盈源电气有限公司 | Automatic pole-mounted load switch |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102012008130A1 (en) * | 2011-07-25 | 2013-01-31 | Abb Technology Ag | Drive unit for a spindle drive |
| CN204857612U (en) * | 2015-08-06 | 2015-12-09 | 温州创富高压电气有限公司 | Automatic disconnected indicating mechanism of branch of circuit breaker recloses |
-
2016
- 2016-09-27 CN CN201610853473.5A patent/CN106449197B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2454888Y (en) * | 2000-12-15 | 2001-10-17 | 宁波天安（集团）股份有限公司 | Hand, electric two-purpose operation mechanism of outdoor load switch |
| CN102543550A (en) * | 2012-02-10 | 2012-07-04 | 成都中工电气工程有限公司 | Direct current isolation switch for rail transit |
| CN202513111U (en) * | 2012-04-11 | 2012-10-31 | 珠海盈源电气有限公司 | Automatic pole-mounted load switch |
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| CN106449197A (en) | 2017-02-22 |
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Address after: 467001 east side of the intersection of Fuxing Road and Cuizhu Road, Xincheng District, Pingdingshan City, Henan Province Co-patentee after: Pinggao Group Co., Ltd. Patentee after: Pinggao group Intelligent Power Technology Co., Ltd Co-patentee after: State Grid Co., Ltd. Address before: South East of Pingdingshan city in Henan province 467001 No. 22 Co-patentee before: Pinggao Group Co., Ltd. Patentee before: PINGDINGSHAN PINGGAO ANCHUAN SWITCH ELECTRICAL APPLIANCES CO., LTD. Co-patentee before: State Grid Corporation |
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