CN1801567A - Lightning electric circuit - Google Patents
Lightning electric circuit Download PDFInfo
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- CN1801567A CN1801567A CN 200510134650 CN200510134650A CN1801567A CN 1801567 A CN1801567 A CN 1801567A CN 200510134650 CN200510134650 CN 200510134650 CN 200510134650 A CN200510134650 A CN 200510134650A CN 1801567 A CN1801567 A CN 1801567A
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- lightning
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- overvoltage protection
- thunder
- earth
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Abstract
The lightning-protective electric circuit incorporates an over-voltage protection element between user line and ground to lead thunder to ground and realize protection as the thunder voltage is much higher than protective action threshold value.
Description
Technical field
The present invention relates to electric product, particularly relate to lightning circuit.
Background technology
In the daily life, in thunder and lightning multiple season, because the deficiencies in the prior art at present, it is very weak that the thunder and lightning of scurrying into circuits such as power supply network, communication and broadcasting is taken precautions against ability, causes harm such as the person that the whole society causes because of thunderbolt and property can not be ignored.
Summary of the invention
The object of the invention provides a kind of circuit that can effectively address the above problem, and makes its loyalty, protects our person and the property harm that is not subjected to thunder and lightning reliably.
Technical solution of the present invention is: the characteristics that are tending towards taking a shorter way itself that utilize electricity to be had, and with the conducting when thunder and lightning is scurried into electrical network of overvoltage protection components and parts, thunder and lightning is introduced the earth at the power supply user side, thereby realize above-mentioned purpose.
A kind of lightning electric circuit of the present invention, when being applied to power supply grid, be between user side and the earth, to incorporate the overvoltage protection components and parts into, this overvoltage protection components and parts that are attempted by between phase line and the earth protect the operation voltage threshold values usually to be advisable a little more than the peak value of mains supply voltage, and this overvoltage protection components and parts protection operation voltage threshold values that is attempted by between the neutral line and the earth is between mains supply voltage and the no-voltage, usually be advisable with about half of mains supply voltage, when thunder and lightning is scurried into power supply grid, because lightning voltage is far above overvoltage protection components and parts protection operation voltage threshold values, the conducting of overvoltage protection components and parts is introduced the earth to thunder and lightning, realizes the protection purpose; And in being applied in communication, program circuit the time; this overvoltage protection components and parts that are attempted by between service wire and the earth protect the operation voltage threshold values usually to be advisable a little more than the peak value of line signal voltage; when thunder and lightning is scurried into circuit; because lightning voltage is far above overvoltage protection components and parts protection operation voltage threshold values; the conducting of overvoltage protection components and parts is introduced the earth to thunder and lightning, realizes the protection purpose.
The invention has the beneficial effects as follows: anti-thunder and lightning effect is remarkable; When being applied to power supply grid, because overvoltage protection components and parts protection operation voltage threshold values is a little more than the peak value of mains supply voltage, when supply power voltage is too high, the overvoltage protection components and parts too can be to the earth conducting, at this moment the safety cout off that leaks electricity can in time be closed, and protection user's electric equipment products exempt from overvoltage and damage; When being applied to power supply grid, can realize that power supply grid provides protection when subordinate's circuit generation misphase; When being applied to power supply grid, can realize the broken neutral line protection.
Below in conjunction with the drawings and the specific embodiments the present invention is described in further details.
Description of drawings
Accompanying drawing 1 is the circuit diagram of a kind of lightning electric circuit embodiment of the present invention.
Embodiment
A kind of lightning electric circuit of the present invention, when being applied to power supply grid, be between user side and the earth, to incorporate the overvoltage protection components and parts into, this overvoltage protection components and parts that are attempted by between phase line and the earth protect the operation voltage threshold values usually to be advisable a little more than the peak value of mains supply voltage, and this overvoltage protection components and parts protection operation voltage threshold values that is attempted by between the neutral line and the earth is between mains supply voltage and the no-voltage, usually be advisable with about half of mains supply voltage, when thunder and lightning is scurried into power supply grid, because lightning voltage is far above overvoltage protection components and parts protection operation voltage threshold values, the conducting of overvoltage protection components and parts is introduced the earth to thunder and lightning, realizes the protection purpose; And in being applied in communication, program circuit the time; this overvoltage protection components and parts that are attempted by between service wire and the earth protect the operation voltage threshold values usually to be advisable a little more than the peak value of line signal voltage; when thunder and lightning is scurried into circuit; because lightning voltage is far above overvoltage protection components and parts protection operation voltage threshold values; the conducting of overvoltage protection components and parts is introduced the earth to thunder and lightning, realizes the protection purpose.
In the circuit diagram of a kind of lightning electric circuit of accompanying drawing 1 the present invention, AC is the mains supply power supply, and the L1 end is phase line input, N
1End is for neutral line input, and K is user's safety cout off that leaks electricity, L
2, N
2Be the user side phase line and the neutral line, Y
1For being connected on phase line L
2And the overvoltage protection components and parts between the earth, Y
2For being connected on neutral line N
2And the overvoltage protection components and parts between the earth.Y wherein
1The overvoltage protection threshold values is usually a little more than AC mains supply voltage peak, Y
2But overvoltage protection threshold values value is about half of AC mains supply voltage, Y
1, Y
2Can select overvoltage protection components and parts such as piezo-resistance, vacuum arrester and transient voltage absorption diode for use, its overcurrent capability should be tried one's best greatly.
When this circuit inserts the power supply grid operate as normal, scurry into AC power supply grid phase line L as thunder and lightning
1During end, because its voltage peak is far above overvoltage protection components and parts Y
1Threshold values, overvoltage protection components and parts Y
1Conducting is introduced the earth to thunder and lightning, realizes the protection purpose, and the safety cout off K that leaks electricity simultaneously action is turn-offed the AC power supply and made user side and electrical network isolation reach duplicate protection; Scurry into AC power supply grid neutral line N as thunder and lightning
1During end, because its voltage peak is far above overvoltage protection components and parts Y
2Threshold values, overvoltage protection components and parts Y
2Conducting is introduced the earth to thunder and lightning, realizes the protection purpose; When AC power supply grid overtension, overvoltage protection components and parts Y
1To the earth conducting, make electric leakage safety cout off K action equally, turn-off the AC power supply and make user side and electrical network isolate the realization protection; When the AC power supply grid causes subordinate's circuit generation misphase accident because of accident, be connected on neutral line N
2And the overvoltage protection components and parts Y between the earth
2Because of both end voltage surpasses its threshold values conducting, the electric leakage safety cout off of user's upper level operate as normal is turn-offed, the protection user security; When the AC power supply grid causes the neutral line that broken string takes place because of accident, overvoltage protection components and parts Y
2Because of both end voltage surpasses its threshold values conducting, the electric leakage safety cout off of user's upper level operate as normal is turn-offed, the safety of protection consumer electronics.
The present invention when being applied to circuit such as communication, broadcasting, lightning protection principle and the foregoing description roughly the same, the present invention simultaneously is not limited to circuit form shown in the above-mentioned embodiment.
Claims (1)
1. lightning electric circuit; it is characterized in that: be between subscribers feeder terminal and the earth, to incorporate the overvoltage protection components and parts into; when thunder and lightning is scurried into the subscribers feeder terminal; because lightning voltage is far above overvoltage protection components and parts protection operation voltage threshold values; the conducting of overvoltage protection components and parts is introduced the earth to thunder and lightning, realizes protection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510134650 CN1801567A (en) | 2005-12-20 | 2005-12-20 | Lightning electric circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510134650 CN1801567A (en) | 2005-12-20 | 2005-12-20 | Lightning electric circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1801567A true CN1801567A (en) | 2006-07-12 |
Family
ID=36811400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510134650 Pending CN1801567A (en) | 2005-12-20 | 2005-12-20 | Lightning electric circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1801567A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110535114A (en) * | 2019-09-22 | 2019-12-03 | 国网山东省电力公司寿光市供电公司 | A kind of communication of low pressure collector RS-485 line Surge Protector and its application method |
-
2005
- 2005-12-20 CN CN 200510134650 patent/CN1801567A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110535114A (en) * | 2019-09-22 | 2019-12-03 | 国网山东省电力公司寿光市供电公司 | A kind of communication of low pressure collector RS-485 line Surge Protector and its application method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |