CN2432716Y - Time voltage automatic sectional device - Google Patents
Time voltage automatic sectional device Download PDFInfo
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- CN2432716Y CN2432716Y CN 00228291 CN00228291U CN2432716Y CN 2432716 Y CN2432716 Y CN 2432716Y CN 00228291 CN00228291 CN 00228291 CN 00228291 U CN00228291 U CN 00228291U CN 2432716 Y CN2432716 Y CN 2432716Y
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- power supply
- sectionalizer
- controller
- circuit
- voltage
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Abstract
The utility model relates to an automatic sectional device used in distribution lines for time and voltage. The automatic sectional device comprises a high-voltage vacuum circuit breaker, a power supply transformer and a sectional device controller, wherein, the controller comprises a rectification circuit and an energy storage circuit, and takes an SCM as a control core to control the switching of the circuit breaker according to the relation of distribution network voltage and time. When a line generates a fault, a spare power supply of the controller provides power supply to ensure that the controller reliably works. The utility model has the characteristics of complete functions, reliable work, small volume, low price, etc. When the fault occurs, the automatic sectional device is supplied with power by a high-capacity energy storage capacitor, which not only satisfies the requirements of the working and environment temperature of the automatic sectional device but also is safe.
Description
The utility model relates to the time voltage automatic sectionalizer that uses on the outdoor post of a kind of distribution line, belongs to the switchgear on the distribution line.
Along with China's distribution scale constantly enlarges, distribution automation requires more and more higher.In power distribution network, occurring maximum is transient fault, and because of electrical network distributes extensively, the situation complexity in case short trouble occurs, all is difficult to get rid of for the moment, causes long-time large-area power-cuts, influences power supply quality.Therefore, the user presses for a kind of function advanced person's switchgear, when breaking down, can judge automatically, identification and isolated fault, guarantees the normal power supply of non-fault section, and reduces interruption duration and the power failure scope that hinders for some reason and cause as much as possible.
In the prior art, the circuit that the controller of automatic sectionalizer mainly adopts discrete electronic component to constitute is controlled, and its function is complete inadequately, is difficult to satisfy the requirement of more complicated controlled function.Simultaneously, because the quality and the reliability design problem of electronic component make its overall reliability not high, antijamming capability is low, misoperation easily.The external automatic sectionalizer of introducing is because the difference of distribution system structure and service condition, be in operation and some problems also occurred, and mostly directly adopt branch, the power switch of system high pressure power supply as sectionalizer, this personal safety to dispatch from the factory debugging and user acceptance personnel threatens, and requires debugging, examination scene to have quite jumbo high voltage source.In addition, present automatic sectionalizer is when electric network fault can not normal power supply, the general storage battery that adopts is made stand-by power supply, and storage battery is to operational environment have relatively high expectations (operating temperature range has only-10～40 ℃), exist to be difficult under the low temperature to control system normal power supply, damage easily at high temperature, useful life is than defectives such as weak points.Also useful fault current is made stand-by power supply, but its poor reliability, antijamming capability is low.
The purpose of this utility model is at weak point of the prior art, provides that a kind of high intelligent high reliability selection is convenient, cost is low, good integrity, easy care, can work in than time voltage automatic sectionalizer on the outdoor post of harsh climate environment.
The time voltage automatic sectionalizer that uses on a kind of distribution line by this purpose design, comprise high-pressure vacuum breaker, be connected in high-pressure vacuum breaker both sides different alternate power transformer and sectionalizer controllers, its architectural feature is that described sectionalizer controller comprises active rectifying circuit, power supply accumulator, it is the control core with the single-chip microcomputer, link to each other with power transformer with high-pressure vacuum breaker respectively, according to the folding of power distribution network voltage and time relation control vacuum circuit-breaker.When line failure, the power supply of sectionalizer controller outside is undesired, and this moment, the stand-by power supply by sectionalizer controller self provided power supply to guarantee sectionalizer controller reliably working.
Described power rectifier circuit is a duplicate supply commutation supply voltage circuit in parallel, and the both sides power supply charges to big capacity storage capacitor by rectifier diode D101-D104, D109 and D105-D108, D110 respectively, is independent of each other mutually, need not mechanical switch again and switches.Described power supply accumulator comprises the big capacity storage capacitor C105-C109 of a plurality of parallel connections, and the one end links to each other with rectification circuit, and the other end is connected to DC-DC Switching Power Supply PWR.The in addition diode power source accelerating circuit in parallel with described power supply accumulator, diode D112 can draw high normal voltage with the input voltage of Switching Power Supply PWR rapidly, makes its quick startup, avoids causing power supply to postpone because of the charging process of C105-C107.Described sectionalizer controller also is provided with divide-shut brake power supply accumulator, and it is made up of rectifier diode D115-D123, resistance R 103 and capacitor C 104, when line fault, can split to close by K switch 1-3 and relay J 1, J2 and carry out sub-switching operation.
Its operation principle is the difference according to sectionalizer both sides voltage, and and the time between relation, determine that fault occurs in leading portion or back segment, thereby fault isolated.Its course of work is: sectionalizer detects voltage, closes a floodgate after the combined floodgate of setting is postponed the time difference and send; If detect and lose voltage detecting in the time limit, then this sectionalizer is latched in gate-dividing state, treat next time again can not automatic closing when electric.
This product is with the control core of single-chip microcomputer as the sectionalizer controller, have multiple functional, reliable operation, characteristics such as volume is little, price is low, during work, by power transformer directly by obtaining lower operating power on the electrical network, break down reliably to power the time at electrical network, by the control system power supply of giving automatic sectionalizer from the big capacity storage capacitor and the wide operating voltage Switching Power Supply of tool, can get rid of the interference of transient fault rapidly, in time isolate permanent fault, make power failure scope and interruption duration be restricted to minimum, improve power supply quality.Its antijamming capability is strong, and good weatherability guarantees sectionalizer energy operate as normal when fault, has both satisfied the work and the ambient temperature requirement of automatic sectionalizer, with safe and reliable.The sectionalizer controller places in the casing of rainproof protection against the tide, is suitable for outdoor use.
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is the system wiring figure of sectionalizer controller.
Fig. 2 is the schematic block circuit diagram of sectionalizer controller.
Fig. 3 is the stand-by power supply circuit theory diagrams of sectionalizer controller.
Fig. 4 is the divide-shut brake accumulator schematic diagram of sectionalizer controller.
Fig. 5 is the body structure schematic diagram of sectionalizer controller;
Fig. 6 is the plan structure schematic diagram of Fig. 5.
Referring to Fig. 1, this sectionalizer controller 2 is respectively with high-pressure vacuum breaker 1 and be connected the different alternate power transformers in high-pressure vacuum breaker both sides 31,32 and link to each other.Referring to Fig. 2, the sectionalizer controller comprises active rectifying circuit, power supply accumulator, Switching Power Supply, sub-switch circuit, display circuit, digital-to-analogue A/D converter, electric flash memory EEPROM and parameter selector switch and control switch, and they link to each other with single-chip microcomputer respectively.It is the control core with the single-chip microcomputer, links to each other with power transformer with high-pressure vacuum breaker respectively, according to the folding of power distribution network voltage and time relation control vacuum circuit-breaker.The setting of each parameter determines that by the parameter selector switch combined floodgate of segmentation controller, separating brake and locking are realized by single-chip microcomputer.During work, the sectionalizer controller is by the power transformer PT of A side, B side, ceaselessly monitor high-pressure vacuum breaker both sides voltage, when line failure, the size and the time length of sectionalizer controller both sides voltage during according to fault, compare with set point, control the folding or the locking of high-pressure vacuum breaker.When line failure, the power supply of sectionalizer controller outside is undesired, and this moment, the stand-by power supply by sectionalizer controller self provided power supply to guarantee sectionalizer controller reliably working.
Referring to Fig. 3, power rectifier circuit is a duplicate supply commutation supply voltage circuit in parallel, and the both sides power supply charges to big capacity storage capacitor by rectifier diode D101-D104, D109 and D105-D108, D110 respectively, is independent of each other mutually, switches need not mechanical switch.The power supply accumulator comprises the big capacity storage capacitor C105-C109 of a plurality of parallel connections, and the one end links to each other with rectification circuit, and the other end is connected to DC-DC Switching Power Supply PWR.Power supply enters in the sectionalizer controller, passes through protective tube, filter respectively, gives storage capacitor C105-C107 charging by rectifier diode D101-D110 and resistance R 104 again, gives Switching Power Supply PWR power supply simultaneously, and output+5V power supply is for circuit workings such as single-chip microcomputers.When fault, D109, D110 front end decompression, the electricity consumption of control circuit continues to be provided by C105, C107.Its operating temperature range is wide, can reach-40 ℃～85 ℃.
The in addition diode power source accelerating circuit in parallel with described power supply accumulator, diode D112 can draw high normal voltage with the input voltage of Switching Power Supply PWR rapidly, makes its quick startup, avoids causing power supply to postpone because of the charging process of C105-C107.
Referring to Fig. 4, the sectionalizer controller also is provided with divide-shut brake power supply accumulator, and it is made up of rectifier diode D115-D123, resistance R 103 and capacitor C 104, when line fault, can split to close by K switch 1-3 and relay J 1, J2 and carry out sub-switching operation.
The single-chip microcomputer of present embodiment is selected 51 serial 89C51 types for use.
Referring to Fig. 5, Fig. 6, the casing 4 of sectionalizer controller is provided with inside door 5 and external door 6 double door structures, makes its rainproof moisture effect better.
Claims (6)
1. the time voltage automatic sectionalizer that uses on the distribution line, comprise high-pressure vacuum breaker (1), be connected in high-pressure vacuum breaker both sides different alternate power transformer (31,32) and sectionalizer controllers (2), it is characterized in that described sectionalizer controller comprises active rectifying circuit, power supply accumulator, it is the control core with the single-chip microcomputer, link to each other with power transformer with high-pressure vacuum breaker respectively, according to the folding of power distribution network voltage and time relation control vacuum circuit-breaker.
2. time voltage automatic sectionalizer according to claim 1, it is characterized in that described power rectifier circuit is duplicate supply commutation supply voltage circuit in parallel, the both sides power supply charges to big capacity storage capacitor by rectifier diode D101-D104, D109 and D105-D108, D110 respectively.
3. time voltage automatic sectionalizer according to claim 1 and 2 is characterized in that described power supply accumulator comprises the big capacity storage capacitor C105-C109 of a plurality of parallel connections, and the one end links to each other with rectification circuit, and the other end is connected to DC-DC Switching Power Supply PWR.
4. time voltage automatic sectionalizer according to claim 3 is characterized in that the in addition diode power source accelerating circuit in parallel with described power supply accumulator, can rapidly the input voltage of Switching Power Supply PWR be drawn high normal voltage by diode D112.
5. time voltage automatic sectionalizer according to claim 1 is characterized in that described sectionalizer controller also comprises divide-shut brake power supply accumulator, and it is made up of rectifier diode D115-D123, resistance R 103 and capacitor C 104.
6. time voltage automatic sectionalizer according to claim 1, the casing that it is characterized in that described sectionalizer controller is the double door structure of rainproof protection against the tide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00228291 CN2432716Y (en) | 2000-05-24 | 2000-05-24 | Time voltage automatic sectional device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00228291 CN2432716Y (en) | 2000-05-24 | 2000-05-24 | Time voltage automatic sectional device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2432716Y true CN2432716Y (en) | 2001-05-30 |
Family
ID=33591783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00228291 Expired - Fee Related CN2432716Y (en) | 2000-05-24 | 2000-05-24 | Time voltage automatic sectional device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2432716Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1312816C (en) * | 2001-01-22 | 2007-04-25 | 施耐德电器工业公司 | Power distribution unit, installation including this power distribution and electric protection method |
| CN107212751A (en) * | 2017-07-28 | 2017-09-29 | 成都华津时代科技股份有限公司 | A kind of intelligence drinking-water terminal |
-
2000
- 2000-05-24 CN CN 00228291 patent/CN2432716Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1312816C (en) * | 2001-01-22 | 2007-04-25 | 施耐德电器工业公司 | Power distribution unit, installation including this power distribution and electric protection method |
| CN107212751A (en) * | 2017-07-28 | 2017-09-29 | 成都华津时代科技股份有限公司 | A kind of intelligence drinking-water terminal |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |