CN203339665U - Novel distributed series compensation system - Google Patents
Novel distributed series compensation system Download PDFInfo
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- CN203339665U CN203339665U CN2013202660844U CN201320266084U CN203339665U CN 203339665 U CN203339665 U CN 203339665U CN 2013202660844 U CN2013202660844 U CN 2013202660844U CN 201320266084 U CN201320266084 U CN 201320266084U CN 203339665 U CN203339665 U CN 203339665U
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Abstract
The utility model provides a novel distributed series compensation system, and relates to the technical field of circuit protection. The system is characterized by comprising a series capacitor, a voltage limiting resistor connected in parallel with the series capacitor, a sampling resistor branch circuit, a by-pass switch and a discharge resistor branch circuit. The system is reasonable in design, fast in reaction speed, compact in structure, relatively low in cost, and high in performance cost ratio.
Description
Technical field:
The utility model relates to the route protection technical field, specifically the new distribution type series compensation system.
Background technology:
Along with expanding economy, the increase of power load, the quality of voltage problem that the mesohigh long distance transmission line brings spills gradually cruelly, badly influences the people's production and life.During normal operation, the building-out capacitor series connection in the line, can improve ability to transmit electricity and the voltage stability of electrical network greatly, and when system is short-circuited fault, shunting device, by the building-out capacitor short circuit, reduces the impact of short circuit current to capacitor.But while normally moving, the voltage of building-out capacitor is not high, gram is once the short circuit of generation systems, within 10ms, the voltage at electric capacity two ends will improve tens times of even decades of times, longer operate time at shunting device, the impact of high pressure while before series compensation capacitance is by short circuit, having born short circuit, cause serious threat to the safe operation of electric capacity, does the impact of voltage in order to bear short circuit the time, the rated voltage of building-out capacitor all can be selected very high, from but the equipment price cost is high.The voltge surge of electric capacity when reducing system short-circuit, generally adopt the way of zinc oxide in parallel.But stable not, the effect of protection is also poor.
The utility model content:
Technical problem to be solved in the utility model is to provide a kind of reaction speed fast, compact conformation,, and old the new distribution type series compensation system lower, that cost performance is high.
Technical problem to be solved in the utility model adopts following technical scheme to realize:
The new distribution type series compensation system is characterized in that: comprise series capacitance, the pressure limiting resistance in parallel with series capacitance, sampling resistor branch, by-pass switch and discharge resistance branch road.
Described discharge resistance branch road comprises discharge resistance, and the discharge switch of connecting with discharge resistance.
Described by-pass switch and discharge switch all adopt the Quick eddy drive unit.
Described employing resistance branch comprises the sampling resistor of two series connection.
Described pressure limiting resistance is nonlinear resistance.
In the utility model, series capacitance is the capacitor that requires reasonable disposition according to compensation depth, and while normally moving, the series capacitance series connection in the line.Discharge resistance is in order to the discharging current of limiting capacitance device.When discharge switch normally moves, in gate-dividing state, when circuit is short-circuited, in order to connect the discharge loop of capacitor, discharging current is generated electricity resistance limits in allowed limits, to prevent the melting welding of discharge switch generation contact.When by-pass switch normally moves, in gate-dividing state, when circuit is short-circuited, switch to be discharged closes a floodgate and closes a floodgate after the electric charge of capacitor stores all discharges, the most at last the capacitor short circuit.Pressure limiting resistance is when early system is short-circuited, and along with the increase of short-circuit impact electric current, the voltage at zinc oxide two ends, because of the at the uniform velocity conducting over threshold voltage, is seen capacitor the limiting voltage at two ends is in lower level, and capacitor for voltage protection is not received injury.
The beneficial effects of the utility model are: the utility model is reasonable in design, and reaction speed is fast, compact conformation, and old is lower, and cost performance is high.
The accompanying drawing explanation:
Fig. 1 is the utility model key wiring diagram.
Embodiment:
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
As shown in Figure 1, the new distribution type series compensation system, comprise series capacitance, the pressure limiting resistance in parallel with series capacitance, sampling resistor branch, by-pass switch and discharge resistance branch road.The discharge resistance branch road comprises discharge resistance, and the discharge switch of connecting with discharge resistance.By-pass switch and discharge switch all adopt the Quick eddy drive unit.Adopt resistance branch to comprise the sampling resistor of two series connection.Pressure limiting resistance is nonlinear resistance.
Above demonstration and described basic principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and specification, describes just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (5)
1. the new distribution type series compensation system, is characterized in that: comprise series capacitance, the pressure limiting resistance in parallel with series capacitance, sampling resistor branch, by-pass switch and discharge resistance branch road.
2. new distribution type series compensation system according to claim 1, it is characterized in that: described discharge resistance branch road comprises discharge resistance, and the discharge switch of connecting with discharge resistance.
3. new distribution type series compensation system according to claim 2, it is characterized in that: described by-pass switch and discharge switch all adopt the Quick eddy drive unit.
4. new distribution type series compensation system according to claim 1, it is characterized in that: described employing resistance branch comprises the sampling resistor of two series connection.
5. new distribution type series compensation system according to claim 1, it is characterized in that: described pressure limiting resistance is nonlinear resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202660844U CN203339665U (en) | 2013-05-16 | 2013-05-16 | Novel distributed series compensation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202660844U CN203339665U (en) | 2013-05-16 | 2013-05-16 | Novel distributed series compensation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203339665U true CN203339665U (en) | 2013-12-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202660844U Expired - Lifetime CN203339665U (en) | 2013-05-16 | 2013-05-16 | Novel distributed series compensation system |
Country Status (1)
| Country | Link |
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| CN (1) | CN203339665U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104659793A (en) * | 2015-03-06 | 2015-05-27 | 云南电网有限责任公司电力科学研究院 | Novel series compensation device for power distribution network |
| CN105101560A (en) * | 2015-08-25 | 2015-11-25 | 无锡中星微电子有限公司 | LED drive circuit and LED drive system using same |
| CN106972502A (en) * | 2017-04-25 | 2017-07-21 | 安徽伊格瑞德电气设备有限公司 | A kind of series capacitor segmented compensation device |
| CN109921453A (en) * | 2018-10-22 | 2019-06-21 | 南京南瑞继保工程技术有限公司 | Distributed energy-consuming device and module failure bypass control method |
-
2013
- 2013-05-16 CN CN2013202660844U patent/CN203339665U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104659793A (en) * | 2015-03-06 | 2015-05-27 | 云南电网有限责任公司电力科学研究院 | Novel series compensation device for power distribution network |
| CN105101560A (en) * | 2015-08-25 | 2015-11-25 | 无锡中星微电子有限公司 | LED drive circuit and LED drive system using same |
| CN106972502A (en) * | 2017-04-25 | 2017-07-21 | 安徽伊格瑞德电气设备有限公司 | A kind of series capacitor segmented compensation device |
| CN109921453A (en) * | 2018-10-22 | 2019-06-21 | 南京南瑞继保工程技术有限公司 | Distributed energy-consuming device and module failure bypass control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 28 Jinhua Avenue Shuangfeng Industrial Zone, Changfeng County of Hefei City, Anhui province 231100 Patentee after: ANHUI HEKAI ELECTRICAL TECHNOLOGY CO.,LTD. Address before: No. 28 Jinhua Avenue Shuangfeng Industrial Zone, Changfeng County of Hefei City, Anhui province 231100 Patentee before: Anhui Guoke Electric Power Equipment Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20131211 |
|
| CX01 | Expiry of patent term |