CN205753655U - A kind of high-voltage intelligent switch - Google Patents
A kind of high-voltage intelligent switch Download PDFInfo
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- CN205753655U CN205753655U CN201620569207.5U CN201620569207U CN205753655U CN 205753655 U CN205753655 U CN 205753655U CN 201620569207 U CN201620569207 U CN 201620569207U CN 205753655 U CN205753655 U CN 205753655U
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Abstract
The utility model discloses a kind of high-voltage intelligent switch, sampling module, intelligent controller module and five parts of interactive module of being mainly made up of three-phase interface module, intelligent breaker module, voltage and current sample form.Wherein intelligent breaker module is made up of three single-phase high voltage choppers with independent operating mechanism and an intelligent driver, intelligent driver realizes quick and precisely divide-shut brake, making process contact zero bounces, and with the functional circuit of fault detect, under the cooperation of intelligent controller module and intelligent driver controls, can accurately realize switching overvoltage and the generation shoved in separating brake when combined floodgate, current zero-crossing point during every phase voltage zero crossing, effectively suppression power system；This high-voltage intelligent switch opening velocity is fast; can be used for the protection of power distribution network extreme difference; quickly realize electric network fault isolation; the average power off time of user malfunction can be reduced; it it is to improve the quality of power supply comprehensively and meet the key equipment of intelligent grid primary equipment intelligent requirements, it is adaptable to the switching application of shnt capacitor, shunt reactor, no-load transformer and long cable circuit.
Description
Technical field
This utility model relates to the management equipment of a kind of distribution system, refers specifically to a kind of high-voltage intelligent switch.
Background technology
High-voltage intelligent switch is widely used key equipment in distribution system.China's system for distribution network of power construction and changing
That makes deepening continuously and promoting, and accelerates the research steps of high-voltage intelligent switch, improves its design and manufacture level, research and development
Go out to have the domestic power distribution network key equipment of international most advanced level, change the present situation of current high-voltage intelligent switch dependence on import, subtract
Few average power off time of user malfunction, it has also become one of key issue of China's power distribution network development.
This utility model with China 10KV electric pressure distribution network construction, transformation actual requirement of engineering as background, with state
Family's electrical network 12 planning and Study on Long-team Strategy are to the developing direction of Intellectualized Switchgear and switchgear intelligence actuating control
The requirement of technology processed, for guiding, develops that volume is little, light weight, high reliability, branch wire time are short, closes a floodgate without spring, action
Dispersibility is little, three-phase independently operates, length in service life, simple in construction, low in energy consumption, open and close times is high and can the height of intelligent phase selection
Pressure vacuum intelligent switch.
The transient process of capacitor switch on/off switch operation can bring the negative effect can not ignore, traditional solution party
Formula can not fundamentally solve inrush phenomenon and switching overvoltage, and easily causes additional negative effect to system, in order to full
Foot power network development and power consumer, to high-quality, the demand of highly reliable power supply, have scholar to propose intelligent phase selection switching technology.Intelligence
The concept of controlled switching technology can come across for the 1970's the earliest, its essence is according to different loads (as Shunt Capacitor Unit,
Overhead transmission line, no-load transformer etc.) characteristic, control switch complete at the optimum phase angle of voltage or electric current to close a floodgate or point
Lock, it is achieved shock-free seamlessly transit, can weaken switching transient galvanomagnetic-effect effectively.
Intelligent phase selection switching technology is the highest to the requirement of chopper, to such an extent as to does not also have it in middle pressure field all the time
Concrete actual application and relevant matured product.
Modern power network is more and more higher to the requirement of the quality of power supply, reduces user's mean failure rate power off time and becomes power supply department
Core missions.User's circle internal fault can be realized by quick extreme difference chopper to be excised in time by user demarcation switch, not make
Become wiretap and substation exit tripping operation, even the big short trouble of user causes higher level's switch trip, also can guarantee that this
User demarcation switch trip excision trouble point, it is ensured that substation exit switch successful reclosing, it is to avoid permanent fault.But extreme difference open circuit
Device has the highest requirement to point speed lock speed, and normal circuit breaker cannot meet requirement at all.
Summary of the invention
This utility model is in order to solve the above-mentioned deficiency of prior art, it is proposed that a kind of high-voltage intelligent switch, and specially one
Plant 10KV high-voltage intelligent switch.
In order to solve above-mentioned technical problem, this utility model by the following technical solutions: a kind of high-voltage intelligent switch, including
Be applicable to the three-phase interface module of three-phase system, at least by electrical network inductive circuit, electrical network capacitive circuit or long cable circuit
The load blocks of a kind of composition, the intelligent breaker module of separating brake feed motion, entering of being arranged on on-off circuit can be completed
The sampling module of row voltage and current sample, control to be connected to the intelligent controller module of intelligent breaker module and can be real
Now send external control instruction to intelligent controller module and data that intelligent controller module sent to be received and show in real time
The interactive module shown；Described three-phase interface module, intelligent breaker module and load blocks is in series connection, described sampling mould
Block is connected on the bus of three-phase interface module gather voltage and current signal, and the voltage and current signal transmission that will gather
To intelligent controller module, described intelligent controller module is made analysis according to voltage and current signal and switch order is sent
To intelligent breaker module, described intelligent breaker module makes separating brake action or feed motion according to switch order, and will be from
The condition monitoring signal of body feeds back to described intelligent controller module.
Further, described intelligent breaker module by three single-phase high voltage choppers with independent operating mechanism and
One intelligent driver composition.
Further, the closing position of described single-phase high voltage chopper uses the permanent magnetism snap close keeping combined floodgate by permanent magnetic；
The open position of described single-phase high voltage chopper uses and keeps separating brake to obtain Spring lock catch by tripping spring, and this single-phase high voltage breaks
Road device completes breaking-closing operating by single solenoid.
Further, the vacuum interrupter in described single-phase high voltage chopper is arranged up and down with operating mechanism.
Preferably, described intelligent controller module uses the design of intelligent phase selection chopper operating passing zero, and it can automatic decision
System power, the phase angle of voltage, and combine the intrinsic and stable branch wire time of phase selection chopper respectively to intelligent breaker
A, B, C three-phase break send instruction so that it is successively and zero crossing action accurately.
High-voltage intelligent of the present utility model switch is by three-phase interface module, intelligent breaker module, sampling module, intelligence control
Device module processed and interactive module composition.Wherein intelligent breaker module is by three single-phase high voltages with independent operating mechanism
Chopper and an intelligent driver composition, closing position uses permanent magnetism snap close, keeps closing a floodgate by permanent magnetic；Open position uses
Spring lock catch, keeps separating brake by tripping spring, only completes breaking-closing operating with a solenoid；Energy needed for breaking-closing operating
Measuring little, during combined floodgate, coil peak point current is 10A, and during separating brake, coil peak point current is 0.8A, and combined floodgate power is less than 50W.
Described intelligent controller module is to aim at intelligent phase selection chopper operating passing zero and design, can automatic decision system
Electric current, the phase angle of voltage, and combine the intrinsic and stable branch wire time of phase selection chopper respectively to A, B, C three-phase breaker
Send instruction so that it is successively and accurately in zero crossing action, thus avoid and shove and the generation of overvoltage.
Described intelligent controller module is with self-checking function, and when inside and outside fault being detected, flashing light is reported to the police, or remotely
During warning, there is anti-jump and blocking function.Described load blocks is to meet the parallel connection of intelligent grid primary equipment intelligent requirements
Capacitor, shunt reactor, no-load transformer and long cable circuit etc..Described interactive module can realize sending external control
Instruction is to intelligent controller, it is also possible to receives data that intelligent controller sent and shows in real time.
The high-voltage intelligent switch of this utility model exploitation, true by accurate electronic control mechanism and permanent-magnet manipulating mechanism
Empty breaker module coordinates, and can realize the zero passage controlled switching of Capacitor banks accurately, effectively reduces Capacitor banks in switching mistake
The overcurrent produced in journey and overvoltage, compensate for the domestic blank in this field.
This utility model, under the cooperation of intelligent controller module and intelligent driver controls, can accurately realize every phase voltage
Switching overvoltage and the generation shoved in separating brake when combined floodgate, current zero-crossing point during zero crossing, effectively suppression power system.Additionally,
This utility model opening velocity is fast, can be used for the protection of power distribution network extreme difference, quickly realizes electric network fault isolation, can reduce user malfunction
Average power off time, is to improve the quality of power supply comprehensively and meet the key equipment of intelligent grid primary equipment intelligent requirements, suitable
Switching for association areas such as shnt capacitor, shunt reactor, no-load transformer and long cable circuits is applied.
Compared with prior art, high-voltage intelligent of the present utility model switch permanent magnet mechanism and touch spring and overtravel is complete
Beautiful coordinate, domestic realize making process contact zero spring first, thus possessed the necessary bar of line voltage, current over-zero switching
Part.On this basis, this high-voltage intelligent switch, can be accurately real under the cooperation of intelligent controller module and intelligent driver controls
Now close a floodgate when separating brake, voltage over zero during every phase current zero crossing, and there is adaptive phase selection function, can enter by designated phase angle
Row divide-shut brake, movement time, error was less than 0.3ms.
This utility model can be widely applied to intelligent phase selection system, and this application eliminates inrush phenomenon, switching overvoltage, greatly
Improve greatly the service life of fling-cut switch, capacitor, reactor, transformator and long cable etc., reduce maintenance cost, and avoid throwing
The impact to electrical network of the transient process during cutting, causes false protection, and can realize frequent operation, improves the idle benefit of transformer station
Repay precision, meet the requirement of intelligent substation.This utility model solves the operational reliability that current reactive power compensator exists
Low, optimize property poor, run the problems such as uneconomical, meet construction green network requirement.
Accompanying drawing explanation
Fig. 1 is system framework schematic diagram of the present utility model；
Fig. 2 is traditional normal circuit breaker and extreme difference breaker open operation time comparison diagram；
Fig. 3 is the application scheme figure that this utility model uses as extreme difference chopper.
Detailed description of the invention
With embodiment, utility model is described in detail below in conjunction with the accompanying drawings.
As it is shown in figure 1, a kind of high-voltage intelligent switch that the utility model proposes, connect including be applicable to three-phase system three
Mouth die block, the load blocks being at least made up of a kind of in electrical network inductive circuit, electrical network capacitive circuit or long cable circuit, can be complete
The intelligent breaker module becoming separating brake feed motion, the sampling mould of carried out voltage and current sample being arranged on on-off circuit
Block, control are connected to the intelligent controller module of intelligent breaker module and can realize sending external control instruction to intelligence
Controller module and the data that intelligent controller module is sent the interactive module shown in real time can be received；Described three connect
Mouth die block, intelligent breaker module and load blocks are in series connection, and described sampling module is connected to the mother of three-phase interface module
To gather voltage and current signal on line, and the voltage and current signal of collection is transferred to intelligent controller module, described intelligence
Analysis can be made according to voltage and current signal and switch order is sent to intelligent breaker module, described intelligence by controller module
Separating brake action or feed motion can be made according to switch order by breaker module, and the condition monitoring signal of self is fed back to institute
State intelligent controller module.
Intelligent breaker module is by three single-phase high voltage choppers with independent operating mechanism and an intelligent driver
Composition.The closing position of single-phase high voltage chopper uses the permanent magnetism snap close being kept combined floodgate by permanent magnetic, this single-phase high voltage open circuit
The open position of device uses the Spring lock catch being kept separating brake by tripping spring, and described single-phase high voltage chopper is by single electricity
Magnetic coil completes breaking-closing operating.Vacuum interrupter in single-phase high voltage chopper is arranged up and down with operating mechanism.
This utility model is made up of five modules: three-phase interface module, intelligent breaker module, sampling module, intelligence control
Device module processed and interactive module.
Wherein, three-phase interface module, intelligent breaker module, three modules of load blocks are sequentially connected in series.Sampling mould
Block is connected on the bus of three-phase interface module gather signal, and is transferred to intelligent controller module, intelligent controller mould
Switch order is sent to intelligent breaker module and obtains its condition monitoring signal by block.Meanwhile, Intelligent Measurement module is by number
The transmission of communication data and external command is realized according to line and interactive module.
This utility model has the high-pressure type intelligence phased system of self-checking function, and three-phase interface module is applicable to all classes
The three-phase system of type, also includes corresponding monophase system.Intelligent breaker module is by three single phase operation vacuum circuit breakers
Composition, action stability is higher, and movement time is fast, and the life-span is long.This modular belt self-checking function, can be intelligent breaker module
State detects in real time and feeds back.
Intelligent controller module is to aim at intelligent phase selection chopper operating passing zero and design, can automatic decision system power,
The phase angle of voltage, and combine the intrinsic and stable branch wire time of phase selection chopper respectively give A, B, C three-phase breaker send
Instruction so that it is successively and accurately in zero crossing action, thus avoid and shove and the generation of overvoltage.Described Based Intelligent Control
Device module, self-checking function, when inside and outside fault being detected, flashing light is reported to the police, or remote alarms, the most anti-jump and blocking function.
Load blocks is to meet the shnt capacitor of intelligent grid primary equipment intelligent requirements, shunt reactor, zero load
Transformator and long cable circuit etc..Interactive module can realize sending external control instruction to intelligent controller, it is also possible to receives
Data that intelligent controller is sent also show in real time.
Intelligent breaker module is by three single-phase high voltage choppers with independent operating mechanism and an intelligent driver
Composition, divide-shut brake process operating mechanism moves along a straight line completely, and breaker operation mechanism uses high stability specific alloy material
Making, performance significantly increases than permanent magnet material.
Final solution of the present utility model is implemented, and specific performance parameter is as follows:
Rated voltage is 12KV, and rated current is 1250A, and specified industrial frequency withstand voltage is 42KV, and rated impulse is pressure for 75KV,
Rated short circuit drop-out current is 31.5KA, and it is 50KA that nominal short-circuit closes peak point current, and specified tolerance time in short-term is 4 seconds, volume
Determining frequency is 50Hz, and under rated current, (mechanical life) is 50000 times, and lower point of rated short circuit current and operation circulate 100 times, touch
The head closing rebound time is 0ms, and weight is 72kg.
Quickly, stable breaker body and intelligent phase selection controller module coordinated accurate, reliable, composition peace
Entirely, reliably, advanced intelligent phase selection chopper, option principle operation can be realized accurately, carrying out intelligent phase selection chopper
During switched capacitor accuracy test, a given power frequency sinusoidal reference signal (simulation actual reference signal UAB) is tested, and surveys
Examination show that AB phase accurately closes in reference signal zero point.C phase closes at 90 degree of phase angles of reference signal, the result drawn
The combined floodgate precision being chopper is the highest, and phase angle error is almost 0.
This utility model high-voltage intelligent switch motion time dispersibility is little, and transmission efficiency is high, and implementation capacity is strong；Closing time is little
In 15ms, opening time is less than 6ms, and branch wire time is the 1/3 of conventional springs chopper, can use as extreme difference chopper,
Quickly isolate fault.
User's circle internal fault can be realized by quick extreme difference chopper to be excised in time by user demarcation switch, not cause and prop up
Wiretap and substation exit tripping operation, even the big short trouble of user causes higher level's switch trip, also can guarantee that this user
Demarcation switch tripping operation excision trouble point, it is ensured that substation exit switch successful reclosing, it is to avoid permanent fault.
Extreme difference chopper has the opening time of the highest requirement, normal circuit breaker and extreme difference chopper to point speed lock speed
Contrast is as shown in Figure 2.The application scheme of extreme difference chopper is as shown in Figure 3.
General urban area power supply reliability more than 99.9%, user's annual power off time about 8.76 hours；Important city
Center that is more than 99.99%, user's annual power off time about 57 minutes.Shenzhen power supply administration uses at Shenzhen area batch
Average for year single power off time was dropped inside the Pass 57 minutes by high-speed switch as the main means of raising power supply reliability, target
To 15 minutes, outside the Pass be down to 30 minutes.
By the application of quick extreme difference chopper, power supply reliability can be greatly improved, reduce user's mean failure rate and have a power failure
Time.
Above-described embodiment only have expressed several embodiments of the present utility model, and it describes more concrete and detailed, but also
Can not be therefore understands that be the restriction to this utility model the scope of the claims.It should be pointed out that, for the ordinary skill people of this area
For Yuan, without departing from the concept of the premise utility, it is also possible to make some deformation and improvement, these broadly fall into this reality
With novel protection domain.Therefore, this utility model patent and protection domain should be as the criterion with appended claims.
Claims (4)
1. a high-voltage intelligent switch, it is characterised in that: include being applicable to the three-phase interface module of three-phase system, at least by electrical network
The load blocks of a kind of composition in inductive circuit, electrical network capacitive circuit or long cable circuit, separating brake feed motion can be completed
Intelligent breaker module, the sampling module of the carried out voltage and current sample being arranged on on-off circuit, control are connected to intelligence
Can the intelligent controller module of breaker module and can realize sending external control instruction and to intelligent controller module and can connect
Receive the data that intelligent controller module is sent the interactive module shown in real time；Described three-phase interface module, intelligent open circuit
Device module and load blocks are in series connection.
2. high-voltage intelligent switch as claimed in claim 1, it is characterised in that: described intelligent breaker module is had by three
The single-phase high voltage chopper of independent operating mechanism and an intelligent driver composition.
3. high-voltage intelligent switch as claimed in claim 2, it is characterised in that: the closing position of described single-phase high voltage chopper is adopted
With the permanent magnetism snap close closed a floodgate by permanent magnetic holding, the open position of this single-phase high voltage chopper is used and is kept by tripping spring
The Spring lock catch of separating brake, and described single-phase high voltage chopper completes breaking-closing operating by single solenoid.
4. high-voltage intelligent switch as claimed in claim 3, it is characterised in that: the vacuum extinction in described single-phase high voltage chopper
Room is arranged up and down with operating mechanism.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620569207.5U CN205753655U (en) | 2016-06-14 | 2016-06-14 | A kind of high-voltage intelligent switch |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620569207.5U CN205753655U (en) | 2016-06-14 | 2016-06-14 | A kind of high-voltage intelligent switch |
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| CN205753655U true CN205753655U (en) | 2016-11-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107872048A (en) * | 2017-11-09 | 2018-04-03 | 上海广吉电气有限公司 | High pressure double breaking points intelligent switch |
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- 2016-06-14 CN CN201620569207.5U patent/CN205753655U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107872048A (en) * | 2017-11-09 | 2018-04-03 | 上海广吉电气有限公司 | High pressure double breaking points intelligent switch |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180411 Address after: 518101 Guangdong Shenzhen Baoan District Xin'an Street big wave community 28 District Huafeng Industrial Zone workshop C block 101 Patentee after: Shenzhen hang Zhi Precision Electronics Co., Ltd. Address before: 330000 Jiangxi city of Nanchang Province Ziyang of Nanchang hi tech Industrial Development Zone, Road No. 3399 Cloud City building 3602 unit B Patentee before: Jiangxi Hangzhi Electrical Co., Ltd. |