CN207148266U - A kind of device for realizing high-voltage switch gear three-phase mechanical locking - Google Patents
A kind of device for realizing high-voltage switch gear three-phase mechanical locking Download PDFInfo
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- CN207148266U CN207148266U CN201720818256.2U CN201720818256U CN207148266U CN 207148266 U CN207148266 U CN 207148266U CN 201720818256 U CN201720818256 U CN 201720818256U CN 207148266 U CN207148266 U CN 207148266U
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- voltage switch
- switch gear
- phases
- transfer device
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
- Y04S10/52—Outage or fault management, e.g. fault detection or location
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The utility model proposes a kind of device that can realize high-voltage switch gear three-phase mechanical locking, for being positioned at installed in distribution network failure between the multiphase high-voltage switch gear of normal signal source in monitoring system, appearance when signal source works can effectively be prevented while two-phase is switched to while closed the failure for causing phase fault, belong to field of power distribution.System of the utility model by being made up of pallet, connecting rod, piston, piston cylinder, multichannel pressure transfer device etc., when a phase high-voltage switch gear closes, the phase switch linkage mechanism can transmit pressure to the phase pallet, remaining two-phase pallet is transferred the pressure to by different pressures transfer device branch, this two-phase is caused to enter mechanical self-latching state, it can not close a floodgate, effectively prevent signal source from occurring abnormal and causing the failure of line to line fault.Compared with existing high-voltage switch gear two-phase mechanical locking device, reliable three-phase high-voltage switch mechanical latching can be provided, alternate a kind of salvo is provided for solve that normal signal source is likely to occur.
Description
Technical field
The mechanism of high-voltage switch gear three-phase mechanical blocking device is the utility model is related to, is used for power distribution network more particularly to one kind
Normal signal source mesohigh contactor mechanical latching in fault location and monitoring system.
Background technology
Distribution Fault Location System can monitor the running status of circuit in real time, quickly be examined when power distribution network breaks down
Failure is surveyed and positioned, isolated fault section is diagnosed in time, is rushed to repair, restored electricity in time, the substantial amounts of working time can be saved,
Reduce power off time and power failure range.Strong support is provided for the safe operation of power distribution network.Therefore fault location system is at me
State is widely used.
Distribution Network Equipment producer is numerous, various in style, and technology development time is not grown, and some products are in detection method and principle
On it is also not overripened, correctly detected especially for singlephase earth fault it is more difficult because failure during singlephase earth fault
Electric current is very small, and in high resistance grounding, voltage failure phase voltage declines unobvious, can be divided into single-phase connect according to detection method
Earth fault passive detection method and active detecting method, passive detection method are by monitoring in singlephase earth fault generation and change procedure
The transient state and steady state characteristic amount that power system itself occurs, reach the method for identification singlephase earth fault, also referred to as passive method, it is main
Dynamic detection method is to need to configure to have actively regulation, the fault detection system of control function, when single-phase earthing occurs for power system
After failure, ensuring not cause failure propagation, under conditions of will not also causing significant adverse to influence, fault detection system is to failure
Running status be adjusted or change, fault characteristic value is reinforced or produce new fault characteristic value, fault detection system
Reach the purpose of identification singlephase earth fault by detecting these characteristic quantities.
Due to having certain defect, therefore the positioning of the distribution network failure based on this method and monitoring on passive method Cleaning Principle
System failure action accuracy is very low, and the method for relatively main flow is the normal signal source method using active detecting method at present, therefore
Normal signal source method detection singlephase earth fault should be used by hindering indicator.Special normal signal source is installed in system, in real time
Monitoring system voltage, once singlephase earth fault occurs, normal signal source puts into high voltage connector in short-term automatically, by switch
The coding-control of equipment, produce on the loop formed between faulty line, trouble point and the earth and be superimposed upon on load current
Characteristic current signal sequence.The fault detector installed on circuit is able to detect that this current signal and the in real time event of instruction ground connection
Barrier.This method is that when singlephase earth fault occurs, generation amplitude is larger on faulty line, has certain time sequence special
The signal of sign detects for fault detector, and the type fault location and monitoring system action accuracy are high.
From the above it can be seen that frequent switching high voltage connector is needed during system work, and domestic main flow producer at present
The signal source of design is all that two-phase or three-phase share a grounding resistance, if signal source exception occurs and causes two high-voltage connectings
Tentaculum is put into simultaneously when, system phase fault is caused by artificial, route protection tripping operation, it is reliable that power distribution network power supply can be substantially reduced
Property, this original intention that distribution network failure positioning and monitoring system are also studied with us runs in the opposite direction, therefore is positioned in distribution network failure
Prevent two-phase or three-phase high-voltage from switching the device of mechanical latching with to be configured in the signal source of monitoring system.
The content of the invention
1) the utility model realizes high-voltage switch gear three-phase mechanical locking in view of the deficienciess of the prior art, providing one kind
Device.
Other more existing devices of the device improve the number of phases of locking and the reliability of locking of signal source equipment, reduce
Distribution network failure positioning and monitoring system operation risk.
The utility model is realized by technical scheme once：
A kind of device for realizing high-voltage switch gear three-phase mechanical locking, it is characterised in that by three groups of U-typed structural pressure transmission
What device was respectively combined two-by-two；Each of which pressure transfer device includes pressure transmission medium, piston cylinder, piston, with piston
The connecting rod of connection, it is fixedly connected on connecting rod and positioned at the pallet of piston cylinder port；First high-voltage switch gear of A phases and C phases second
Individual high-voltage switch gear piston cylinder bottom is connected by pressure transfer device 5a, and first height of second high-voltage switch gear of A phases and B phases presses off
Close piston cylinder bottom to connect by pressure transfer device 5b, first high-voltage switch gear piston cylinder of second high-voltage switch gear of B phases and C phases
Bottom is connected by pressure transfer device 5c, and adjustment pressure transfer device makes 6 piston cylinder inner carriers in position D, divide respectively
Pallet is placed under operation mechanism for high voltage switch linkage position after the pallet of A, B, C phase high-voltage switch gear is not arranged on each connecting rod
Side is simultaneously fixed.
The utility model transmission operation mechanism for high voltage switch linkage displacement is that piston is with what pressure transfer device was formed
System.
Any one phase pressure transfer device of the utility model is that two different branches respectively link the phase switch motion
The displacement of mechanism is delivered to other two-phases, this two-phase piston action is propped up operating mechanism and enters self-locking state.
Assuming that operationally, closing A phase high voltage connectors, its mechanical linkage which controls occurs change in location, is pressed in A phases two
On pallet, downward pressure is produced, A phase pistons change to position by position, and the pressure passes through a and b pressure transfer device transmission respectively
Onto B, C phase piston, the piston of B, C phase changes to position F by position D respectively, and B, C phase pallet, which move up, withstands B, C two-phase high-voltage connecting
The link gear of tentaculum enters self-locking state, and similarly remaining two operation principle is identical.
Compared with prior art, the beneficial effects of the utility model are the utility model：
The number of phases of the locking of signal source equipment and the reliability of locking are improved, the signal source of main flow is all equipped with present
Two-phase shares grounding resistance, that is to say, that only have the device of two-phase mechanical latching at present, and the utility model proposes three-phase
The mechanical lock of switch, more conform to following development trend of signal source.Existing mechanical locking device is mainly by machine
Structure connecting rod etc. forms, and causes the failures such as bite in long-play unavoidably, and reliability is also not so good as high with the system of hydraulic oil.Cause
This, of the present utility model applied widely, mechanical latching effect is more reliable, effectively eliminates normal signal source internal high pressure contactor
The possibility of phase fault, improve normal signal source, distribution network failure positioning and monitoring system and distribution network operation can
By property.
Below in conjunction with the accompanying drawings and the utility model content is expanded on further in example.
Brief description of the drawings
Fig. 1 is the utility model structure and principle schematic.
Wherein：A is A phase high-voltage switch gears；B is B phase high-voltage switch gears；C is C phase high-voltage switch gears；D is A phases, B phases, C phase pistons
First position where cylinder inner carrier；E is the second place where A phase piston cylinders inner carrier；F is B phases, C phase piston cylinder inner carriers institute
In the second place.
Embodiment
With reference to Fig. 1, a specific embodiment of the present utility model is described in further detail.See Fig. 1, it is a kind of
The device of high-voltage switch gear three-phase mechanical locking is realized, is respectively combined two-by-two by three groups of U-typed structural pressure transfer devices 5；
Each of which pressure transfer device 5 includes pressure transmission medium 6, piston cylinder 4, piston 3, and the connecting rod 2 being connected with piston 3 is fixed
It is connected on connecting rod 2 and positioned at the pallet 1 of the port of piston cylinder 4；A phases first and second piston cylinder bottom of C phases pass through pressure
Transfer device 5a connections, A phases second are connected with first piston cylinder bottom of B phases by pressure transfer device 5b, B phases second
Individual to be connected with first piston cylinder bottom of C phases by pressure transfer device 5c, adjustment pressure transfer device makes 6 pistons respectively
In position D, high-voltage switch gear operation machine is placed in after the pallet of A, B, C phase is arranged on each connecting rod respectively by cylinder inner carrier for pallet
It is below structure linkage position and fixed.
The utility model transmission operation mechanism for high voltage switch linkage displacement is that piston is with what pressure transfer device was formed
System.
Any one phase pressure transfer device of the utility model is that two different branches respectively link the phase switch motion
The displacement of mechanism is delivered to other two-phases, this two-phase piston action is propped up operating mechanism and enters self-locking state.
The step of the utility model device specific embodiment：
The first step：By pallet below high-voltage switch gear link gear, piston cylinder is fixed on inside signal source and closed
Suitable position, it is typically mounted at the lower section of high-voltage switch gear link gear；
Second step：Pressure transfer device is completed according to Fig. 1 connections, makes oil level in each piston cylinder to position D；
3rd step：Connecting rod and piston are connected and inserted in piston cylinder, small end is connected with pallet completes installation；
4th step：When closing A phase high voltage connectors, link gear drives pallet to push, and is pressed on two pallets of A phases,
Downward pressure is produced, A phases piston changes to position E by position D, and the pressure passes through (5a) and (5b) pressure transfer device transmission respectively
Onto B, C phase piston, the piston of B, C phase changes to position F by position D respectively, and B, C phase pallet, which move up, withstands B, C two-phase high-voltage connecting
The link gear of tentaculum enters self-locking state, and similarly remaining two operation principle is identical.
Claims (1)
1. a kind of device for realizing high-voltage switch gear three-phase mechanical locking, it is characterised in that filled by three groups of U-typed structural pressure transmission
Put what (5) be respectively combined two-by-two；Each of which pressure transfer device (5) includes pressure transmission medium (6), piston cylinder (4), lived
Fill in (3), the connecting rod (2) being connected with piston (3), be fixedly connected on connecting rod (2) and positioned at the pallet (1) of piston cylinder (4) port；
Second high-voltage switch gear piston cylinder bottom of first high-voltage switch gear of A phases and C phases is connected by pressure transfer device (5a), A phases the
First high-voltage switch gear piston cylinder bottom of two high-voltage switch gears and B phases is connected by pressure transfer device (5b), second height of B phases
Compress switch and connected with first high-voltage switch gear piston cylinder bottom of C phases by pressure transfer device (5c), adjust pressure transfer device
Make 6 piston cylinder inner carriers in position D respectively, will after the pallet of A, B, C phase high-voltage switch gear is arranged on each connecting rod respectively
Pallet is placed in below operation mechanism for high voltage switch linkage position and fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720818256.2U CN207148266U (en) | 2017-07-07 | 2017-07-07 | A kind of device for realizing high-voltage switch gear three-phase mechanical locking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720818256.2U CN207148266U (en) | 2017-07-07 | 2017-07-07 | A kind of device for realizing high-voltage switch gear three-phase mechanical locking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207148266U true CN207148266U (en) | 2018-03-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720818256.2U Active CN207148266U (en) | 2017-07-07 | 2017-07-07 | A kind of device for realizing high-voltage switch gear three-phase mechanical locking |
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| Country | Link |
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| CN (1) | CN207148266U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108022791A (en) * | 2017-12-18 | 2018-05-11 | 云南电网有限责任公司电力科学研究院 | A kind of high-voltage switch gear three-phase mechanical blocking device and normal signal source |
-
2017
- 2017-07-07 CN CN201720818256.2U patent/CN207148266U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108022791A (en) * | 2017-12-18 | 2018-05-11 | 云南电网有限责任公司电力科学研究院 | A kind of high-voltage switch gear three-phase mechanical blocking device and normal signal source |
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