CN203312792U - Combined type overvoltage absorbing device - Google Patents
Combined type overvoltage absorbing device Download PDFInfo
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- CN203312792U CN203312792U CN2013203192358U CN201320319235U CN203312792U CN 203312792 U CN203312792 U CN 203312792U CN 2013203192358 U CN2013203192358 U CN 2013203192358U CN 201320319235 U CN201320319235 U CN 201320319235U CN 203312792 U CN203312792 U CN 203312792U
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Abstract
A combined type overvoltage absorbing device is disclosed and consists of a rectification type capacitance-resistance absorbing device and three zinc oxide lightning arresters. The combined type overvoltage absorbing device is characterized in that the rectification type capacitance-resistance absorbing device consists of a three-phase high-voltage rectification bridge and a high-voltage capacitance-resistance absorbing circuit which is connected to the direct current output ends of the three-phase high-voltage rectification bridge, the three-phase alternating current input ends of the three-phase high-voltage rectification bridge are respectively connected with three-phase alternating current power sources, the high-voltage capacitance-resistance absorbing circuit consists of a high-voltage absorbing capacitor and two high-voltage non-inductive absorbing resistors, the high-voltage absorbing capacitor is connected with one high-voltage non-inductive absorbing resistor in parallel and is then connected with the other high-voltage non-inductive absorbing resistor in series at the direct current output ends of the three-phase high-voltage rectification bridge, and the three zinc oxide lightning arresters are respectively in bridge connection between the three-phase alternating current power sources and the ground. Interphase overvoltage is absorbed by the high-voltage capacitance-resistance absorbing circuit after being rectified through the three-phase rectification bridge, overvoltage between the phases and the ground is absorbed by corresponding zinc oxide lightning arresters, and electricity utilization safety of an electric power system is guaranteed in an all-round way.
Description
Technical field
The utility model relates to the emergency protective circuit technical field, is specifically related to a kind of to the corresponding emergency protection circuit device for electric of overvoltage.
Background technology
Because the break-make of vacuum switch can produce switching overvoltage; therefore in order to prevent that power consumption equipment from damaging because of high pressure; guarantee the safe operation of using electricity system, usually in using electricity system, configure the normal operation that rc absorber or overvoltage protection device are protected power consumption equipment.In common using electricity system, usually adopt the AC system rc absorber, the AC system rc absorber is applied in the electric power system that harmonic components is larger, usually can be because of the too high damage that causes the AC system rc absorber of the active power absorbed the generation accident; And people usually only be concerned about produce or operation in the overvoltage that produces, for the phase ground overvoltage of thunderbolt and so on, but lack protection, overvoltage protection is comprehensive not.
Summary of the invention
Problem according to the prior art existence, the utility model provides a kind of and not only can be applied to the electric power system that harmonic components is larger but also can effectively suppress superpotential compound surge absorber mutually, when this absorber can effectively avoid harmonic wave larger, cause absorber to damage because the active power absorbed is excessive, can avoid again overvoltage between phase ground to cause the damage of power consumption equipment.
The technical scheme that the utility model is realized is as follows:
A kind of compound surge absorber, this absorber is comprised of a rectifier type rc absorber and three zinc oxide arresters, it is characterized in that,
Described rectifier type rc absorber is comprised of the high-pressure resistance-capacitance absorbing circuit that a three-phase high-voltage rectifier bridge and is connected in three-phase high-voltage rectifier bridge DC output end, the three-phase alternating current input of three-phase high-voltage rectifier bridge is connected to respectively three-phase alternating-current supply, the high-pressure resistance-capacitance absorbing circuit is comprised of a high pressure Absorption Capacitance and 2 noninductive absorption resistances of high pressure, high pressure Absorption Capacitance and the noninductive absorption resistance of high pressure DC output end that is connected in series in again the three-phase high-voltage rectifier bridge with the noninductive absorption resistance of another high pressure in parallel wherein;
Described three zinc oxide arresters are connected across respectively between three-phase alternating-current supply and ground.
When alternate generation overvoltage, alternate overvoltage is absorbed by the high-pressure resistance-capacitance absorbing circuit after the three-phase commutation bridge rectification; When between any phase and ground, producing overvoltage because of thunderbolt, the ground overvoltage is absorbed by this phase oxidation zinc lightning arrester mutually.
The utility model has following outstanding advantage and effect compared to prior art: owing to adopting the high-pressure resistance-capacitance absorbing circuit, when harmonic components is larger, because two resistance are cascaded structure, total resistance becomes large, therefore the active power absorbed reduces and is shared by two resistance, greatly reduces the possibility that the rectifier type rc absorber damages; Moreover, the combined type surge absorber that the utility model provides also matches with zinc oxide arrester, in order to absorb overvoltage mutually, for the safe operation of electric power system provides more comprehensively protection.
The accompanying drawing explanation
Fig. 1 is the circuit theory diagrams of a specific embodiment of a kind of compound surge absorber described in the utility model.
Embodiment
Referring to Fig. 1, the described a kind of compound surge absorber of the present embodiment, this absorber comprises that one forms the three-phase high-voltage rectifier bridge by DA1, DA2, DB1, DB2, a DC1 and DC26 high-voltage diode, high-pressure resistance-capacitance absorbing circuit be comprised of the noninductive absorption resistance R1 of high pressure, R2 and high pressure Absorption Capacitance C1 and three are connected across respectively three-phase alternating-current supply A, B, the zinc oxide arrester FR1～FR3 between C and ground D.Wherein,
High pressure Absorption Capacitance C1 and the noninductive absorption resistance R2 of high pressure DC output end that is connected in series in again the three-phase high-voltage rectifier bridge with the noninductive absorption resistance R1 of another high pressure in parallel wherein.
The operation principle of this straight flow rc absorber is as follows:
When the make-break operation because of vacuum switch produces alternate overvoltage, after the three-phase high-voltage rectifier bridge rectification of alternate overvoltage via DA1, DA2, DB1, DB2, DC1 and DC26 high-voltage diode composition, absorbed by the noninductive absorption resistance R1 of high pressure and high pressure Absorption Capacitance C1, after high pressure Absorption Capacitance C1 is filled, superpotential energy is absorbed by the noninductive absorption resistance R1 of high pressure and the noninductive absorption resistance R2 of high pressure, after voltage fell after rise, the voltage of C1 discharged through resistance R 2;
As AC three-phase A, B, while between any phase and ground D of C, producing overvoltage because of thunderbolt, the phase of this phase ground overvoltage is absorbed by the zinc oxide arrester connected between these phase and ground.
Claims (1)
1. compound surge absorber, this absorber is comprised of a rectifier type rc absorber and three zinc oxide arresters, it is characterized in that,
Described rectifier type rc absorber is comprised of the high-pressure resistance-capacitance absorbing circuit that a three-phase high-voltage rectifier bridge and is connected in three-phase high-voltage rectifier bridge DC output end, the three-phase alternating current input of three-phase high-voltage rectifier bridge is connected to respectively three-phase alternating-current supply, the high-pressure resistance-capacitance absorbing circuit is comprised of a high pressure Absorption Capacitance and 2 noninductive absorption resistances of high pressure, high pressure Absorption Capacitance and the noninductive absorption resistance of high pressure DC output end that is connected in series in again the three-phase high-voltage rectifier bridge with the noninductive absorption resistance of another high pressure in parallel wherein;
Described three zinc oxide arresters are connected across respectively between three-phase alternating-current supply and ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203192358U CN203312792U (en) | 2013-06-04 | 2013-06-04 | Combined type overvoltage absorbing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203192358U CN203312792U (en) | 2013-06-04 | 2013-06-04 | Combined type overvoltage absorbing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203312792U true CN203312792U (en) | 2013-11-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203192358U Expired - Fee Related CN203312792U (en) | 2013-06-04 | 2013-06-04 | Combined type overvoltage absorbing device |
Country Status (1)
| Country | Link |
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| CN (1) | CN203312792U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109639159A (en) * | 2018-12-18 | 2019-04-16 | 辽宁恒顺新能源科技有限公司 | High-voltage rectifying system |
-
2013
- 2013-06-04 CN CN2013203192358U patent/CN203312792U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109639159A (en) * | 2018-12-18 | 2019-04-16 | 辽宁恒顺新能源科技有限公司 | High-voltage rectifying system |
| CN109639159B (en) * | 2018-12-18 | 2024-04-02 | 辽宁恒顺新能源科技有限公司 | High-voltage rectifying system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 230000 No. 99 Yonghe Road, hi tech Zone, Anhui, Hefei Patentee after: Anhui electric technology Limited by Share Ltd Address before: 230000 No. 99 Yonghe Road, hi tech Zone, Anhui, Hefei Patentee before: Anhui Yitian Electrical Technology Co., Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131127 Termination date: 20180604 |
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| CF01 | Termination of patent right due to non-payment of annual fee |