CN104821573A - High-capacity overvoltage absorber - Google Patents
High-capacity overvoltage absorber Download PDFInfo
- Publication number
- CN104821573A CN104821573A CN201510269547.6A CN201510269547A CN104821573A CN 104821573 A CN104821573 A CN 104821573A CN 201510269547 A CN201510269547 A CN 201510269547A CN 104821573 A CN104821573 A CN 104821573A
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- overvoltage
- resistance
- resistor
- voltage
- nonlinear
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Abstract
A high-capacity overvoltage absorber relates to the technical field of overvoltage suppression of an electrical power system. The high-capacity overvoltage absorber is characterized in that the high-capacity overvoltage absorber comprises nonlinear resistors FR1 and FR2, a high-voltage fuse RD, a capacitor C and a resistor R. One end of the nonlinear resistor FR2 serves as a port, and the other end is connected with one end of the resistor R, one end of the capacitor C and one end of the nonlinear resistor FR1; the other end of the resistor R, the other end of the capacitor C and the other end of the nonlinear resistors FR1 are connected with one end of the high-voltage fuse RD; and the other end of the high-voltage fuse RD serves as another port. The overvoltage absorber has very good energy-gathering and absorbing functions and can effectively suppress atmosphere overvoltage, switching overvoltage, large-amplitude arc grounding overvoltage and ferromagnetic-resonance overvoltage.
Description
Technical field
The present invention relates to Hyper-Voltage of Power Systems suppression technology field, be specifically related to a kind of high energy and hold surge absorber.
Background technology
Following several overvoltage is there is: the atmospheric over-voltage etc. produced when the metal produced when the switching overvoltage of the equipment such as circuit breaker, Single Phase Metal ground connection and arc grounding over-voltage and thunderbolt in current 3-35KV electric power system, the highest phase voltage that may reach more than 3.5 times of its value of some peak overvoltages, if overvoltage a few hours high like this act on electrical network, the accumulation damage of insulation in electric equipment will certainly be caused, if cause insulation to puncture over the ground in the insulation weak link of full phase, the major accident of phase fault will be caused into.
Summary of the invention
The object of this invention is to provide that pressure limiting is effective, residual voltage value is low, there is good cumulative, a kind of high energy of the effect of energy-absorbing holds surge absorber.
In order to solve problem existing in background technology, the present invention is by the following technical solutions: it comprises nonlinear resistance FR1, FR2, high-tension fuse RD, electric capacity C, resistance R;
Described nonlinear resistance FR2 one end is as port, the other end is connected with resistance R one end, electric capacity C one end, nonlinear resistance FR1 one end respectively, the resistance R other end, the electric capacity C other end, the nonlinear resistance FR1 other end are connected with high-tension fuse RD one end respectively, and the high-tension fuse RD other end is as another port.Resistance R, electric capacity C forms a hf channel by the high frequency spikes voltage transmission that produces in system to nonlinear resistance FR2, nonlinear resistance FR2 action absorbs peak overvoltage, and limit high frequency spikes voltage and be no more than certain amplitude, thus ensure that in system and can not produce too high voltages, nonlinear resistance FR1 is resistance R, the protection component of electric capacity C branch road, because under characteristic frequency, branch road likely produces resonance and occurs too high voltage, cause resistance R, electric capacity C component wear, therefore when voltage exceedes nonlinear resistance FR1 operation voltage, nonlinear resistance FR1 action protection resistance R, electric capacity C element.
The present invention can not only suppress the peak overvoltage of system; and because it adopts low dynamic electric resistor zinc oxide valve plate; thus its residual voltage value just greatly reduces; well can eliminate the protection's dead-zone of system overvoltage; add its superpower holding; the large energy that can produce when clamping system overvoltage absorption system overvoltage occur effectively; there is the effect of good cumulative, energy-absorbing, effectively can suppress arc grounding over-voltage that atmospheric over-voltage, switching overvoltage and amplitude are larger and ferro-resonance over-voltage.
Accompanying drawing explanation
Fig. 1 is electrical schematic diagram of the present invention.
Embodiment
See Fig. 1, a kind of high energy holds surge absorber, it comprises nonlinear resistance FR1, FR2, high-tension fuse RD, electric capacity C, resistance R, described nonlinear resistance FR2 one end is as port, the other end is connected with resistance R one end, electric capacity C one end, nonlinear resistance FR1 one end respectively, the resistance R other end, the electric capacity C other end, the nonlinear resistance FR1 other end are connected with high-tension fuse RD one end respectively, and the high-tension fuse RD other end is as another port.
Resistance R, electric capacity C forms a hf channel by the high frequency spikes voltage transmission that produces in system to nonlinear resistance FR2, nonlinear resistance FR2 action absorbs peak overvoltage, and limit high frequency spikes voltage and be no more than certain amplitude, thus ensure that in system and can not produce too high voltages, nonlinear resistance FR1 is resistance R, the protection component of electric capacity C branch road, because under characteristic frequency, branch road likely produces resonance and occurs too high voltage, cause resistance R, electric capacity C component wear, therefore when voltage exceedes nonlinear resistance FR1 operation voltage, nonlinear resistance FR1 action protection resistance R, electric capacity C element.
High energy of the present invention holds surge absorber; it can not only suppress the peak overvoltage of system; and because it adopts low dynamic electric resistor zinc oxide valve plate; thus its residual voltage value just greatly reduces; well can eliminate the protection's dead-zone of system overvoltage; add its superpower holding; the large energy that can produce when clamping system overvoltage absorption system overvoltage occur effectively; there is the effect of good cumulative, energy-absorbing, effectively can suppress arc grounding over-voltage that atmospheric over-voltage, switching overvoltage and amplitude are larger and ferro-resonance over-voltage.
Claims (1)
1. high energy holds a surge absorber, and it is characterized in that, it comprises nonlinear resistance FR1, FR2, high-tension fuse RD, electric capacity C, resistance R; Described nonlinear resistance FR2 one end is as port, the other end is connected with resistance R one end, electric capacity C one end, nonlinear resistance FR1 one end respectively, the resistance R other end, the electric capacity C other end, the nonlinear resistance FR1 other end are connected with high-tension fuse RD one end respectively, and the high-tension fuse RD other end is as another port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510269547.6A CN104821573A (en) | 2015-05-25 | 2015-05-25 | High-capacity overvoltage absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510269547.6A CN104821573A (en) | 2015-05-25 | 2015-05-25 | High-capacity overvoltage absorber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104821573A true CN104821573A (en) | 2015-08-05 |
Family
ID=53731785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510269547.6A Withdrawn CN104821573A (en) | 2015-05-25 | 2015-05-25 | High-capacity overvoltage absorber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104821573A (en) |
-
2015
- 2015-05-25 CN CN201510269547.6A patent/CN104821573A/en not_active Withdrawn
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20150805 |
|
| WW01 | Invention patent application withdrawn after publication |