CN206742964U - Integrated vacuum circuit breaker - Google Patents
Integrated vacuum circuit breaker Download PDFInfo
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- CN206742964U CN206742964U CN201720413403.8U CN201720413403U CN206742964U CN 206742964 U CN206742964 U CN 206742964U CN 201720413403 U CN201720413403 U CN 201720413403U CN 206742964 U CN206742964 U CN 206742964U
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- circuit breaker
- vacuum circuit
- signal processing
- processing unit
- integrated vacuum
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Abstract
The utility model discloses a kind of integrated vacuum circuit breaker, including pedestal, breaker body and secondary electricity-fetching module, the breaker body and secondary electricity-fetching module integrate, integrally extension forms base extension to the pedestal, the secondary electricity-fetching module is installed on base extension, the secondary electricity-fetching module includes capacitance type potential transformer, and the high-tension line of the capacitance type potential transformer and power distribution network is of coupled connections.The measurement module includes signal processing unit and A phases, B phases and C phase current mutual inductors.The radio communication unit establishes communication link with external handheld terminal.The power taking electric capacity of the capacitance type potential transformer uses metallized polypropylene film capacitor, continual and steady output low-voltage supply, when earth fault occurs in distribution network system, the potential safety hazards such as ferromagnetic resonance are effectively avoided, it is ensured that the stability and reliability of equipment operation.
Description
Technical field
The utility model belongs to high voltage power distribution technical field, and in particular to a kind of integrated vacuum circuit breaker.
Background technology
At present, vacuum circuit breaker is widely used in Distribution Network Frame ceases to be busy, and function is more single and needs manual configuration, does not have
The functions such as remote measurement, remote signalling, remote control.
Because work region is wide and landform is changeable, laying optical fiber cost of investment is huge, it is difficult to realizes real with main control base station
When communicate.In normal conditions, due to reasons such as load changes, relay protection fixed value setting needs periodically adjustment in time.Trunk
Line and branch line protection cooperation not in time, cause tripping operation of bypassing the immediate leadership, and easily cause expansion power failure range.In actual use even
Relay protection function breaker is out of service, is substantially at the state of " inconsiderable uncontrollable ".
Once distribution network line breaks down, because territorial scope is wide, operation maintenance personnel is limited, labor intensity is big, together
When influenceed by many factors such as operating apparatus and environmental conditions, can not in time isolate and process circuit failure, cause line outage
Time is grown, and influence area is big, it is difficult to which substance improves circuit first-aid repair efficiency.
Traditional vacuum circuit breaker does not monitor zero-sequence current function, it is impossible to earth fault is judged and failure every
From, it is impossible to positioning both ground failure.In the 10kV power distribution networks in China, substantial amounts of failure is singlephase earth fault, wherein very big ratio
The trouble point of example appears in load side.Once failure causes to have a power failure, made troubles to people's people life, disturb enterprise
Normal production and operation, greater loss is caused to electric company.Because distribution line distance is increasingly longer, branch is more and more and is in
Network structure, for searching failure in time, rationally effectively disposal brings challenges.
Traditional vacuum circuit breaker does not have communication function, and to realize that communication is most of needs to lay optical fiber along overhead line,
Cost of investment does not have operability greatly.In recent years, partial vacuum breaker started to use wireless communication technique, although realizing
Three distant functions, but without the corresponding receiving terminal of matching.With the fast development of mobile Internet, the highly desirable reality of operation maintenance personnel
The handheld terminals such as present functional mobile phone realize the remote monitoring of breaker.
Traditional vacuum circuit breaker is difficult to distribution network automated function, its once, secondary device be usually spaced apart by exploitation,
It is installed separately, it is difficult to realize primary equipment and the installation of secondary device Integrated design, cause compatibility and matching degree to have difficulties.
To sum up, it is necessary to propose a kind of novel breaker being adapted to Distribution Network Frame ceases to be busy, can isolate and position in time
Line fault, shorten the line outage time, reduce line outage area, effectively improve circuit first-aid repair efficiency.
Utility model content
The utility model is directed to the situation of prior art, there is provided a kind of integrated vacuum circuit breaker.
The utility model uses following technical scheme, and the integrated vacuum circuit breaker includes：
Pedestal, breaker body and secondary electricity-fetching module, the breaker body and secondary electricity-fetching module integrate, institute
Stating pedestal, integrally extension forms base extension, and the secondary electricity-fetching module is installed on base extension, the secondary power taking mould
Block includes capacitance type potential transformer, and the high-tension line of the capacitance type potential transformer and power distribution network is of coupled connections；
Measurement module, the measurement module include signal processing unit, and separate with the signal processing unit
A phases, B phases and the C phase current mutual inductors of ground electrical connection；
Front end acquisition module, the front end acquisition module include radio communication unit, the signal processing unit electrical connection
Radio communication unit, the radio communication unit establish communication link with external handheld terminal；
Turn-off module, the turn-off module include switching winding, closing coil and energy storage motor, the switching winding, conjunction
Brake cable circle and energy storage motor electrically connect with signal processing unit independently of each other.
According to above-mentioned technical proposal, the radio communication unit includes wireless launcher and wireless receiver, the signal
Processing unit carries out remote interaction by the wireless launcher and/or wireless receiver with external handheld terminal.
According to above-mentioned technical proposal, the wireless launcher and/or wireless receiver use GPRS transmission data signal number
According to.
According to above-mentioned technical proposal, the front end acquisition module also includes filter unit, and the filter unit is arranged at institute
State between signal processing unit and radio communication unit.
According to above-mentioned technical proposal, the power taking electric capacity of the capacitance type potential transformer uses metallized polypropylene film electric capacity
Device.
According to above-mentioned technical proposal, auxiliary switch, the closing coil are provided between the switching winding and closing coil
Limit switch is provided between energy storage motor.
According to above-mentioned technical proposal, the signal processing unit is using dsp chip serial TMS320.
Integrated vacuum circuit breaker, its advantage include disclosed in the utility model：It is alternate short for power distribution network
Road failure and circuit running status carry out specific aim processing, realize the monitoring, protection and control of distribution network system, realize one
Secondary, secondary device depth integration, improve integration, the intelligent level of integrated vacuum circuit breaker.
Brief description of the drawings
Fig. 1 is the fundamental diagram of the utility model preferred embodiment.
Fig. 2 is the function structure chart of the utility model preferred embodiment.
Embodiment
The utility model discloses a kind of integrated vacuum circuit breaker, with reference to preferred embodiment, to this practicality
New embodiment is further described.
Referring to Fig. 1 and Fig. 2 of accompanying drawing, the operation principle and module of the integrated vacuum circuit breaker are respectively illustrated
Structure.Preferably, the integrated vacuum circuit breaker includes pedestal 20, in addition to is arranged at the breaker of the pedestal 20
Body 10 and secondary electricity-fetching module（Energy taking device）30, the breaker body 10 and secondary electricity-fetching module 30 are integrated and set
Meter, the one of pedestal 20 extension form base extension 21, and the base extension 21 is used to install secondary electricity-fetching module 30.
Preferably, the integrated vacuum circuit breaker also includes measurement module 40, and the measurement module 40 includes letter
Number processing unit 41, in addition to A phases, B phases and the C phase current mutual inductances electrically connected independently of each other with the signal processing unit 41
Device（A phase, B phase, C phase measures CT）42,43,44.
Preferably, the integrated vacuum circuit breaker also includes front end acquisition module（Front-end acquisition device）50, institute
Stating front end acquisition module 50 includes radio communication unit 51, and the signal processing unit 41 electrically connects radio communication unit 51, institute
State the handheld terminal such as radio communication unit 51 and external smart mobile phone and establish communication link.
Preferably, the radio communication unit 51 includes wireless launcher 511 and wireless receiver 512, at the signal
Reason unit 41 is remotely handed over by the wireless launcher 511 and/or wireless receiver 512 with handheld terminals such as smart mobile phones
Mutually, the wireless launcher 511 and/or wireless receiver 512 preferably use GPRS transmission digital signal data.
Preferably, the secondary electricity-fetching module 30 includes capacitance type potential transformer 31, the capacitance type potential transformer
31 are of coupled connections with the high-tension line of power distribution network, such as 10KV high-tension lines, realize sensing power taking, so as to the integrated post
The electrical appliance of upper vacuum circuit breaker provides reliable working power.
Preferably, the breaker body 10 and secondary electricity-fetching module 30 use integrated design, integrate
Capacitance type potential transformer 31 is not influenceed by Changes in weather, as long as distribution network line is powered, no matter load current height can carry
For reliable working power.
Further, the power taking electric capacity of the capacitance type potential transformer 31 uses metallized polypropylene film capacitor, fills
Divide and utilize the advantages such as the Dissipation Factor of Standard Capacitors is low, insulaion resistance is high, stability is high and self-healing property is good, the secondary electricity-fetching module
30 are able to continually and steadily export low-voltage supply.
Preferably, the breaker body 10 also includes turn-off module 60, the turn-off module 60 include switching winding 61,
Closing coil 62 and energy storage motor 63, the switching winding 61, closing coil 62 and energy storage motor 63 independently of each other with signal
Processing unit 41 electrically connects.Wherein, auxiliary switch 64, the closing line are provided between the switching winding 61 and closing coil 62
Limit switch 65 is provided between circle 62 and energy storage motor 63.
According to above preferred embodiment, the signal processing unit 41 preferably uses the high property using TMS320 series as representative
Can low-power consumption dsp chip.The A phases, B phases and C phase current mutual inductors 42,43,44 gather A phases, B phases and C phases independently of each other
Current signal, the signal processing unit 41 obtain, change and exported the data signal of above-mentioned A phases, B phases and C phase current signals,
The data signal of each phase current is transmitted to the radio communication unit 51 by communication cable.Preferably, the front-end collection mould
Block 50 also includes filter unit 52, the filter unit 52 be arranged at the signal processing unit 41 and radio communication unit 51 it
Between, the data signal of each phase current is passed in real time after the filtering process of the filter unit 52 by the wireless launcher 511
Transport to the handheld terminals such as smart mobile phone.Once generation line fault, the signal processing unit 41 according to predetermined control strategy from
While dynamic control breaking-closing operating is to promptly isolate failure, also remote control can be obtained by the wireless receiver 512 and referred to
Order, further realizes the remote manual intervention of operation maintenance personnel.
According to above preferred embodiment, the integrated vacuum circuit breaker has the characteristics that：
1. the integrated design of device.Breaker body 10, secondary electricity-fetching module 30, measurement module 40 and front-end collection
Module 50 uses integrated design.Circuit breaker base 20 is extended, secondary power taking is installed on the top of base extension 21
Module 30, signal processing unit 41 are electrically connected by communication cable with front end acquisition module 50.
2. two small designs of electricity-fetching module 30, install convenients, improve safety in operation.Existing vacuum circuit breaker
Device, some utilize electromagnetic potential transformer power taking, and some utilizes current transformer power taking, and what is also had is filled using solar power generation
Put power taking.Above-mentioned way to take power exists to some extent invests the problems such as larger, wiring is complicated, easily by running environment, pole
The extraneous factor such as weather and line load is held to influence.By taking electromagnetic potential transformer way to take power as an example, the equipment is more heavy,
In-site installation inconvenience, ferromagnetic resonance is easily caused when earth fault occurs in system, or even causes the potential safety hazards such as blast.
3. two times electricity-fetching module 30 uses " high-voltage capacitance " induction type power taking.Power taking electric capacity is using metallized polypropylene film electricity
Container, have the characteristics that loss factor is low, insulaion resistance is high, stability is high and self-healing, correspondingly with wide input voltage range,
It is the advantages that AC/DC, high efficiency, high reliability, low-power consumption, security isolation, effectively anti-using the integrally formed construction of rubber
Only dust pollution, salt dirt etc., reinforced insulation security, it is ensured that the stability and reliability of equipment operation.
4. signal processing unit 41 judges the size and Orientation of zero-sequence current according to operation power, realize that monitoring circuit connects
Ground, three-phase imbalance failure, positioning fault section, shorten trouble shooting time.
5. operation maintenance personnel can by the handheld terminal real-time remote monitoring distribution network line state such as smart mobile phone, by
The channels such as the APP applications with smart mobile phone can obtain the data gathered in real time, and long-distance Log server control instruction.
For a person skilled in the art, the technical scheme described in foregoing embodiments can still be repaiied
Change, or equivalent substitution is carried out to which part technical characteristic, all within the spirit and principles of the utility model, that is made is any
Modification, equivalent substitution, improvement etc., should be included in the scope of protection of the utility model.
Claims (7)
- A kind of 1. integrated vacuum circuit breaker, it is characterised in that including：Pedestal, breaker body and secondary electricity-fetching module, the breaker body and secondary electricity-fetching module integrate, the base Seat one extension forms base extension, and the secondary electricity-fetching module is installed on base extension, the secondary electricity-fetching module bag Capacitance type potential transformer is included, the high-tension line of the capacitance type potential transformer and power distribution network is of coupled connections；Measurement module, the measurement module include signal processing unit, and electric independently of each other with the signal processing unit A phases, B phases and the C phase current mutual inductors of connection；Front end acquisition module, the front end acquisition module include radio communication unit, and the signal processing unit electrical connection is wireless Communication unit, the radio communication unit establish communication link with external handheld terminal；Turn-off module, the turn-off module include switching winding, closing coil and energy storage motor, the switching winding, closing line Circle and energy storage motor electrically connect with signal processing unit independently of each other.
- 2. integrated vacuum circuit breaker according to claim 1, it is characterised in that the radio communication unit includes Wireless launcher and wireless receiver, the signal processing unit is by the wireless launcher and/or wireless receiver and outside Put handheld terminal and carry out remote interaction.
- 3. integrated vacuum circuit breaker according to claim 2, it is characterised in that the wireless launcher and/or Wireless receiver uses GPRS transmission digital signal data.
- 4. integrated vacuum circuit breaker according to claim 1, it is characterised in that the front end acquisition module is also wrapped Filter unit is included, the filter unit is arranged between the signal processing unit and radio communication unit.
- 5. integrated vacuum circuit breaker according to claim 1, it is characterised in that the capacitance type potential transformer Power taking electric capacity use metallized polypropylene film capacitor.
- 6. integrated vacuum circuit breaker according to claim 1, it is characterised in that the switching winding and closing line Auxiliary switch is provided between circle, limit switch is provided between the closing coil and energy storage motor.
- 7. integrated vacuum circuit breaker according to claim 1, it is characterised in that the signal processing unit uses The dsp chip of TMS320 series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720413403.8U CN206742964U (en) | 2017-04-19 | 2017-04-19 | Integrated vacuum circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720413403.8U CN206742964U (en) | 2017-04-19 | 2017-04-19 | Integrated vacuum circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206742964U true CN206742964U (en) | 2017-12-12 |
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ID=60561315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720413403.8U Active CN206742964U (en) | 2017-04-19 | 2017-04-19 | Integrated vacuum circuit breaker |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106972631A (en) * | 2017-04-19 | 2017-07-21 | 嘉兴市恒创电力设备有限公司 | Integrated vacuum circuit breaker |
| CN113872167A (en) * | 2021-11-24 | 2021-12-31 | 国网重庆市电力公司电力科学研究院 | Device and method for preventing protection misoperation or refusal caused by direct current system ground fault |
-
2017
- 2017-04-19 CN CN201720413403.8U patent/CN206742964U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106972631A (en) * | 2017-04-19 | 2017-07-21 | 嘉兴市恒创电力设备有限公司 | Integrated vacuum circuit breaker |
| CN113872167A (en) * | 2021-11-24 | 2021-12-31 | 国网重庆市电力公司电力科学研究院 | Device and method for preventing protection misoperation or refusal caused by direct current system ground fault |
| CN113872167B (en) * | 2021-11-24 | 2024-05-28 | 国网重庆市电力公司电力科学研究院 | Device and method for preventing protection misoperation or refusal operation caused by direct current system ground fault |
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