CN2687925Y - High-voltage parallel capacitor no-flashy-flow no-overvoltage switching device - Google Patents
High-voltage parallel capacitor no-flashy-flow no-overvoltage switching device Download PDFInfo
- Publication number
- CN2687925Y CN2687925Y CN 200420002051 CN200420002051U CN2687925Y CN 2687925 Y CN2687925 Y CN 2687925Y CN 200420002051 CN200420002051 CN 200420002051 CN 200420002051 U CN200420002051 U CN 200420002051U CN 2687925 Y CN2687925 Y CN 2687925Y
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- voltage
- parallel capacitor
- series
- flashy
- capacitor
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Abstract
The utility model relates to a high-voltage parallel capacitor no-flashy-flow no-overvoltage switching device so that when the high-voltage parallel capacitor throws in and cuts, the inrush current and the overvoltage can not generate to realize the reactive compensation which is the optimal dynamic state of the high voltage network. The technical project is that the utility model comprises a switch voltage transformer and a breaker. The utility model is characterized in thata high voltage isolating switch (G2), a high-voltage winding of the switch voltage transformer (TK), and a breaker (K2) which are connected with in series to form a series circuit; a high voltage isolating switch (G1) and a breaker (K1) which are connected with in series to form another series circuit; after the parallel connection, the two series circuits are connected with a high-voltage parallel capacitor (C); the low-pressure winding of the switch voltage transformer can connect with a controllable silicon, and the control electrode of the controllable silicon can connect with a programmable controller.
Description
Technical field: the no-flashy-flow that the utility model relates to a kind of high-voltage parallel capacitor does not have the overvoltage switching device.Can accomplish the optimal dynamic reactive power compensation of high-voltage fence thus.
Background technology: at present, high-voltage parallel capacitor can produce when dropping into and shove and overvoltage, when main cause is breaker closing on the capacitor voltage and the unequal high frequency composition that occurs shoving and shoving of line voltage can induce very high overvoltage at the secondary side of current transformer, make current transformer generation flashover and puncture; Can produce overvoltage when shunt capacitor excises on capacitor, main cause is that circuit breaker can be restriked.
The utility model content: the technical problems to be solved in the utility model provides a kind of high-voltage parallel capacitor no-flashy-flow does not have the overvoltage switching device.Technical scheme: a kind of high-voltage parallel capacitor no-flashy-flow does not have the overvoltage switching device, constitute by switch transformer and circuit breaker etc., it is characterized in that: the high pressure winding of high voltage isolator (G2), switch transformer (TK), circuit breaker (K2) series connection constitute a series circuit, high-voltage switch gear (G1), circuit breaker (K1) series connection constitute another series circuit, connect high-voltage parallel capacitor (C) after the two series circuit parallel connections, switch transformer low pressure winding connects controllable silicon (bidirectional triode thyristor or one-way SCR inverse parallel), and the silicon controlled control utmost point connects programmable controller.Beneficial effect:, can accomplish that when shunt capacitor drops into supply voltage equals voltage on the capacitor because the utility model adopts distinctive circuit structure.Therefore no-flashy-flow produces; Excision the time can accomplish on the capacitor voltage be zero and electric current very little, no overvoltage generation.
Description of drawings: accompanying drawing is circuit theory diagrams of the present utility model.
Embodiment: as shown in the figure, the high pressure winding of high voltage isolator G2, switch transformer TK, circuit breaker K2 series connection constitute a series circuit; High voltage isolator G1, circuit breaker K1 series connection constitutes another series circuit; Meet high-voltage parallel capacitor C after the two series circuit parallel connections; The low pressure winding of switch transformer TK meets controllable silicon BCR; The control utmost point of controllable silicon BCR meets programmable controller PLC.
During work, in the time will dropping into shunt capacitor C, the circuit breaker K2 that at first closes (G1, G2 close) starts programmable controller PLC then and controls controllable silicon BCR, after making capacitor C be charged to supply voltage, make capacitor C insert power supply again through switch transformer TK.At this moment circuit breaker K1, disconnection K2 again close.Capacitor inserts electrical network, because of condenser voltage keeps equating with supply voltage.So no-flashy-flow produces.
In the time will excising capacitor C, the circuit breaker K2 that at first closes starts programmable controller PLC then and controls controllable silicon BCR, makes capacitor C insert power supply through TK.At this moment disconnect K1, control controllable silicon BCR by programmable controller PLC again and make it to disconnect controllable silicon BCR when voltage is zero on capacitor C, disconnect K2 afterwards.Because of voltage on the capacitor C is that zero volt and electric current are very little, so can not produce overvoltage.
Claims (1)
1. a high-voltage parallel capacitor no-flashy-flow does not have the overvoltage switching device, constitute by switch transformer and circuit breaker etc., it is characterized in that: the high pressure winding of high voltage isolator (G2), switch transformer (TK), circuit breaker (K2) series connection constitute a series circuit, high voltage isolator (G1), circuit breaker (K1) series connection constitute another series circuit, connect high-voltage parallel capacitor (C) after the two series circuit parallel connections, the low pressure winding of switch transformer connects controllable silicon (BCR), and the silicon controlled control utmost point connects programmable controller (PLC).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420002051 CN2687925Y (en) | 2004-01-09 | 2004-01-09 | High-voltage parallel capacitor no-flashy-flow no-overvoltage switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420002051 CN2687925Y (en) | 2004-01-09 | 2004-01-09 | High-voltage parallel capacitor no-flashy-flow no-overvoltage switching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2687925Y true CN2687925Y (en) | 2005-03-23 |
Family
ID=34667528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420002051 Expired - Fee Related CN2687925Y (en) | 2004-01-09 | 2004-01-09 | High-voltage parallel capacitor no-flashy-flow no-overvoltage switching device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2687925Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102082441A (en) * | 2011-02-16 | 2011-06-01 | 刘锋 | Control circuit of reactive power compensating capacitors for pumping unit |
| CN103683214A (en) * | 2012-09-21 | 2014-03-26 | 哈尔滨帕特尔科技股份有限公司 | High-voltage circuit breaker longevity protection device |
-
2004
- 2004-01-09 CN CN 200420002051 patent/CN2687925Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102082441A (en) * | 2011-02-16 | 2011-06-01 | 刘锋 | Control circuit of reactive power compensating capacitors for pumping unit |
| CN102082441B (en) * | 2011-02-16 | 2012-10-31 | 刘锋 | Control circuit of reactive power compensating capacitors for pumping unit |
| CN103683214A (en) * | 2012-09-21 | 2014-03-26 | 哈尔滨帕特尔科技股份有限公司 | High-voltage circuit breaker longevity protection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Pan Zhengchun Document name: Notification of Termination of Patent Right |
|
| 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 |