CN202353304U - Rapid-switching power system - Google Patents
Rapid-switching power system Download PDFInfo
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- CN202353304U CN202353304U CN2011204971001U CN201120497100U CN202353304U CN 202353304 U CN202353304 U CN 202353304U CN 2011204971001 U CN2011204971001 U CN 2011204971001U CN 201120497100 U CN201120497100 U CN 201120497100U CN 202353304 U CN202353304 U CN 202353304U
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Abstract
The utility model relates to a rapid-switching power system. The utility model solves the problems that the automatic throw-in device of emergency supply adopted in the power system can hardly carry out switching when the loop cannot be closed, and the switching time is long. The system comprises a first bus and a second bus, the inlet end of the first bus is connected with a first inlet switch, the inlet end of the second bus is connected with a second inlet switch, the first bus is connected with the second bus through a bus-connecting line, a bus-connecting switch is arranged on the bus-connecting line, and the system also comprises a quick power switcher, which is respectively connected with the first inlet switch, the second inlet switch and the bus-connecting switch. The rapid-switching power system has the advantages that since the quick power switcher is added in the control circuit of the power system, switching operation can be rapidly carried out, so that the power-off time of the buses is greatly shortened in the process of switching, consequently, the switching operation of the system becomes possible when the loop cannot be closed, and the continuous operation of the equipment connected with the buses is guaranteed.
Description
Technical field
The utility model relates to a kind of power technology field, relates in particular to the electric power system that a kind of operating time is short, guarantee the continual quick back brake of power supply.
Background technology
Large scale industry users such as oil, chemical industry, iron and steel, metallurgy are one of main users of electric power system, and the electric power system in the enterprise generally has power supplying and distributing equipments such as generator, transmission line, transformer, and various electricity consumption facility.Load capacity is big, and the load importance rate is high, and the production continuity is very strong, in case the interruption of power supply occurs, might make to produce to stop or taking place chaoticly, even entail dangers to is personal, the safety of equipment, causes serious consequence.Most domestic electric power system at present is many to realize that with automatic throw-in equipment of emergency power supply the power supply under the failure condition switches; But find that in use there is following problem in traditional dual-power automatic switching device: because the electric power system of some areas does not allow subordinate to move with the electric unit cyclization; Cause some to be difficult to realize with the grid switching operation of electric unit under the prerequisite that the equipment that do not influence moves continuously; The stand-by power supply automatic switching device switches consuming time long slightly in addition; A lot of motor may be cut off because of low-voltage variation, and then the impulse current problem when bringing big unit to restart to system.Like publication number is CN201349144; Name is called the Chinese utility model of automatic throw-in equipment of emergency power supply, and this device comprises that quantity of state collecting unit, pattern recognition unit, electric physical quantity collecting unit, stand-by power supply drop into unit, control unit and relay array automatically.In this patent, automatic throw-in equipment of emergency power supply can provide stand-by power supply to drop into function automatically to the transformer station of the various modes of connection and various operational modes.But just there is above-mentioned shortcoming in this device: because the electric power system of some areas does not allow subordinate to move with the electric unit cyclization; Cause some to be difficult to realize with the grid switching operation of electric unit under the prerequisite that the equipment that do not influence moves continuously; The stand-by power supply automatic switching device switches consuming time long slightly in addition; A lot of motor may be cut off because of low-voltage variation, and then the impulse current problem when bringing big unit to restart to system.
Summary of the invention
The utility model has mainly solved the general automatic throw-in equipment of emergency power supply that adopts in the electric power system; Back brake is difficult to realize under can not the situation of cyclization; And automatic throw-in equipment of emergency power supply switches the problem of length consuming time, the electric power system that provides a kind of operating time weak point, assurance to supply power continual quick back brake.
The utility model solves the technical scheme that its technical problem adopted: a kind of electric power system of quick back brake; Comprise first bus and second bus; On the end of incoming cables of first bus, be connected with first service entrance switch, on the end of incoming cables of second bus, be connected with second service entrance switch, between first bus and second bus, link to each other through female on line; On female on line, be provided with bus connection switch; System also includes the charged situation of two buses of gathering, and according to the power supply rapid switching device of each switch of information Control deciliter, said power supply rapid switching device links to each other with bus connection switch with first service entrance switch, second service entrance switch respectively.The utility model adds power supply rapid switching device in the electric power system control loop; Can judge the busbar fault situation fast; And carry out handover operation fast; Shortened the dead electricity time of handoff procedure median generatrix greatly, make system can not cyclization under the operation grid switching operation become possibility, guaranteed bus institute carrying device continuous service.
As a kind of preferred version; Said power supply rapid switching device comprises first testing circuit, second testing circuit, control circuit and executive circuit; Said first testing circuit is connected on first bus, and second testing circuit is connected on second bus, and first testing circuit and the output of second bus circuit are connected on the control circuit; Control circuit links to each other with executive circuit, and executive circuit is connected respectively on first service entrance switch, second service entrance switch and the bus connection switch.First testing circuit and second testing circuit detect the charged situation on first bus and second bus respectively; First testing circuit and second testing circuit send to control circuit with these information; Whether the inlet wire that control circuit is judged first and second buses according to information dead electricity, if detect wherein bus dead electricity, then sends order and gives executive circuit; By executive circuit first service entrance switch, second service entrance switch and bus connection switch are opened and closed, switch on another bus.
As a kind of preferred version, said power supply rapid switching device is installed in the bus connection switch cabinet.
The utility model has the advantages that in the electric power system control loop and add power supply rapid switching device; Carry out handover operation fast; Shortened the dead electricity time of handoff procedure median generatrix greatly; Make system can not cyclization under the operation grid switching operation become possibility, guaranteed bus institute carrying device continuous service.
Description of drawings
Fig. 1 is a kind of structural representation that the utility model median generatrix is connected with each switch;
Fig. 2 is a kind of structural framing sketch map of power supply rapid switching device in the utility model.
The 1-first bus 2-second bus 3-first service entrance switch 4-second service entrance switch 5-bus connection switch 6-power supply rapid switching device 7-first testing circuit 8-second testing circuit 9-control circuit 10-executive circuit.
Embodiment
Below through embodiment, and combine accompanying drawing, the technical scheme of the utility model is further described.
Embodiment:
The electric power system of a kind of quick back brake of present embodiment, as shown in Figure 1, comprise first bus 1 and second bus 2; On the end of incoming cables of first bus, be connected with first service entrance switch 3, on the end of incoming cables of second bus, be connected with second service entrance switch 4, between first bus and second bus, link to each other through female on line; On female on line, be provided with bus connection switch 5; System also includes the charged situation of two buses of gathering, and according to the power supply rapid switching device 6 of each switch of information Control deciliter, as shown in Figure 2; Power supply rapid switching device comprises first testing circuit 7, second testing circuit 8, control circuit 9 and executive circuit 10; First testing circuit 7 is connected on first bus 1, and second testing circuit 8 is connected on second bus 2, and first testing circuit and the output of second bus circuit are connected on the control circuit 9; Control circuit links to each other with executive circuit 10, and executive circuit is connected respectively to first service entrance switch 3, second service entrance switch 4 and bus connection switch 5.The present embodiment workflow is: first testing circuit and second testing circuit detect the charged situation on first bus and second bus respectively; First testing circuit and second testing circuit send to control circuit with these information, and whether the inlet wire that control circuit is judged first and second buses according to information dead electricity, and under normal circumstances first bus is in user mode; This moment, first service entrance switch was closed; Second service entrance switch and bus connection switch port, if break down in the course of the work, first bus loses power supply; First testing circuit detects the first bus dead electricity situation; Then send order and give executive circuit, break off first service entrance switch, closed second service entrance switch and bus connection switch, guaranteed the continued power of bus by executive circuit.
Specific embodiment described herein only is that the present invention's spirit is illustrated.Person of ordinary skill in the field of the present invention can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Although this paper has used terms such as first bus, second bus, first service entrance switch, second service entrance switch, bus connection switch morely, do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present invention more easily; It all is contrary with spirit of the present invention being construed to any additional restriction to them.
Claims (3)
1. the electric power system of a quick back brake; Comprise first bus and second bus; On the end of incoming cables of first bus, be connected with first service entrance switch, on the end of incoming cables of second bus, be connected with second service entrance switch, between first bus and second bus, link to each other through female on line; On female on line, be provided with bus connection switch; It is characterized in that: system also includes the charged situation of two buses of gathering, and according to the power supply rapid switching device (6) of each switch of information Control deciliter, said power supply rapid switching device links to each other with first service entrance switch (3), second service entrance switch (4) and bus connection switch (5) respectively.
2. the electric power system of a kind of quick back brake according to claim 1; It is characterized in that said power supply rapid switching device (6) comprises first testing circuit (7), second testing circuit (8), control circuit (9) and executive circuit (10); Said first testing circuit is connected on first bus (1); Second testing circuit is connected on second bus (2); First testing circuit and the output of second bus circuit are connected on the control circuit (9), and control circuit links to each other with executive circuit (10), and executive circuit is connected respectively on first service entrance switch (3), second service entrance switch (4) and the bus connection switch (5).
3. the electric power system of a kind of quick back brake according to claim 1 and 2 is characterized in that said power supply rapid switching device (6) is installed in the bus connection switch cabinet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204971001U CN202353304U (en) | 2011-12-05 | 2011-12-05 | Rapid-switching power system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204971001U CN202353304U (en) | 2011-12-05 | 2011-12-05 | Rapid-switching power system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202353304U true CN202353304U (en) | 2012-07-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204971001U Expired - Fee Related CN202353304U (en) | 2011-12-05 | 2011-12-05 | Rapid-switching power system |
Country Status (1)
| Country | Link |
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| CN (1) | CN202353304U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103280796A (en) * | 2013-01-12 | 2013-09-04 | 辽宁工程技术大学 | Flexible switching technology for power supply system bus coupler switch, and realization method thereof |
| CN109149956A (en) * | 2018-09-26 | 2019-01-04 | 云南电网有限责任公司电力科学研究院 | A kind of distribution ring device and method based on the adjusting of AC-AC voltage |
| CN110350650A (en) * | 2019-07-05 | 2019-10-18 | 广西电网有限责任公司梧州供电局 | The highly reliable quick power transfer device of large capacity and its method for handover control |
| CN110504683A (en) * | 2019-08-20 | 2019-11-26 | 国家能源集团宁夏煤业有限责任公司 | Switching operation control method and system |
-
2011
- 2011-12-05 CN CN2011204971001U patent/CN202353304U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103280796A (en) * | 2013-01-12 | 2013-09-04 | 辽宁工程技术大学 | Flexible switching technology for power supply system bus coupler switch, and realization method thereof |
| CN109149956A (en) * | 2018-09-26 | 2019-01-04 | 云南电网有限责任公司电力科学研究院 | A kind of distribution ring device and method based on the adjusting of AC-AC voltage |
| CN109149956B (en) * | 2018-09-26 | 2020-05-29 | 云南电网有限责任公司电力科学研究院 | Distribution loop closing device and method based on AC-AC voltage regulation |
| CN110350650A (en) * | 2019-07-05 | 2019-10-18 | 广西电网有限责任公司梧州供电局 | The highly reliable quick power transfer device of large capacity and its method for handover control |
| CN110350650B (en) * | 2019-07-05 | 2024-03-22 | 广西电网有限责任公司梧州供电局 | High-capacity high-reliability rapid power supply switching device and switching control method thereof |
| CN110504683A (en) * | 2019-08-20 | 2019-11-26 | 国家能源集团宁夏煤业有限责任公司 | Switching operation control method and system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120725 Termination date: 20151205 |
|
| EXPY | Termination of patent right or utility model |