CN107370137A - A kind of power lightning protection maintaining method - Google Patents
A kind of power lightning protection maintaining method Download PDFInfo
- Publication number
- CN107370137A CN107370137A CN201710654581.4A CN201710654581A CN107370137A CN 107370137 A CN107370137 A CN 107370137A CN 201710654581 A CN201710654581 A CN 201710654581A CN 107370137 A CN107370137 A CN 107370137A
- Authority
- CN
- China
- Prior art keywords
- maintaining method
- lightning protection
- frequency conversion
- surge suppressor
- conversion type
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
- H02H9/042—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage comprising means to limit the absorbed power or indicate damaged over-voltage protection device
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/02—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess current
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
- H02H9/045—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage adapted to a particular application and not provided for elsewhere
- H02H9/047—Free-wheeling circuits
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Emergency Protection Circuit Devices (AREA)
- Protection Of Static Devices (AREA)
Abstract
The invention discloses a kind of power lightning protection maintaining method, its maintaining method step are as follows：A. a brand-new frequency conversion type surge suppressor is selected first；B. the power switch of all circuit passbands is secondly disconnected, selects appropriate connecting wire；C. discharge current road strength is determined again, furthermore is wire of the mark in additional electric pressure drop caused by device end；D. the PE conductors of each equipment are marked after being operated according to step c again, equipotential link will be established between equipment and SPD further according to mark, current potential carries out multistage SPD energy compatibility after connecting；E. after being installed according to step d by the insertion of frequency conversion type surge suppressor in place, normal work is checked whether.The present invention is by increasing frequency conversion type surge suppressor, when Lightning disturbance transmission line of electricity, frequency conversion type surge suppressor starts, lightning current is blocked and suppressed, caused overvoltage surge can effectively be suppressed, so that back end of line equipment improves lightning protection ability no longer by thunder disaster.
Description
Technical field
The present invention relates to a kind of its power lightning protection technical field, especially a kind of power lightning protection maintaining method.
Background technology
In today of information age, computer network and communication apparatus are more and more accurate, and the requirement of its working environment is also more next
It is higher, and thunder and lightning and the transient overvoltage of large electric equipment increasingly can frequently pass through power supply, antenna, radio signal
The circuits such as transceiver invade indoor electric equipment and the network equipment, cause equipment or component damage, casualties, transmission or
The data of storage are interfered or lost, or even electronic equipment is produced malfunction or temporarily paralysis, system-down, data transfer
Interrupt, LAN or even wide area network are destroyed.Its harm is startling, and indirect loss is generally far larger than direct economy damage
Lose.Lightning protection for power supply is exactly to prevent the equipment in being struck by lightning by modern electricity and other technologies.
The content of the invention
The present invention is directed to the technical deficiency of existing power lightning protection, there is provided a kind of power lightning protection maintaining method.
The present invention is solves above-mentioned technical deficiency, using modified technical scheme, a kind of power lightning protection maintaining method, safeguards
Method and step is as follows：
A. a brand-new frequency conversion type surge suppressor is selected first；
B. the power switch of all circuit passbands is secondly disconnected, selects appropriate connecting wire；
C. discharge current road strength is determined again, furthermore is wire of the mark in additional electric pressure drop caused by device end；
D. the PE conductors of each equipment are marked after being operated according to step c again, will be built further according to mark between equipment and SPD
Vertical equipotential link, current potential carry out multistage SPD energy compatibility after connecting；
E. after being installed according to step d by the insertion of frequency conversion type surge suppressor in place, normal work is checked whether；
F. according to step e when frequency conversion type surge suppressor malfunction coefficient window indicates red light, remote signalling terminal output warning
Signal, represent that frequency conversion type surge suppressor breaks down, should change in time, untill normal.
As a kind of preferred embodiment of the present invention, appropriate connecting wire is divided into data wire, ground connection in the step b
Line and power line, the requirement of the data wire is that its cross-sectional area is 4mm when length is more than 0.5m2, the power line will
It is more than or equal to 16mm with sectional area2Strand copper wire, the ground wire is with being more than or equal to 25mm2Strand copper wire.
As a kind of preferred embodiment of the present invention, the connecting wire should select short, straight and thick line, ground wire
Resistance should be less than being equal to 4 Ω.
As a kind of preferred embodiment of the present invention, the frequency conversion type surge suppressor is used using temperature control protection electricity
Road, its internal setting Thermal protection.
As a kind of preferred embodiment of the present invention, the SPD in the step d is voltage switch type component and votage limit type
Component combines.
The voltage switch type component, it is when not having instantaneous overvoltage as a kind of preferred embodiment of the present invention
High impedance is presented, once response thunder and lightning instantaneous overvoltage, its impedance just sport Low ESR, it is allowed to and lightning current passes through.
The votage limit type component, it is high resistant when not having instantaneous overvoltage as a kind of preferred embodiment of the present invention
It is anti-, but can constantly reduce with the increase of surge current and voltage, its impedance, its current-voltage characteristic is strong non-linear.
As a kind of preferred embodiment of the present invention, the combined component, by voltage switch type component and votage limit type
Component combines, and can be shown as the characteristic that voltage switch type or votage limit type or both have concurrently, and this is decided by that institute is alive
Characteristic.
The beneficial effect that is reached of the present invention is：The present invention by the source of power supply increase frequency conversion type surge suppressor,
When Lightning disturbance transmission line of electricity, frequency conversion type surge suppressor starts, and lightning current is blocked and suppressed, to caused surge
Overvoltage can effectively be suppressed, so that back end of line equipment improves lightning protection ability no longer by thunder disaster.
Brief description of the drawings
Fig. 1 is a kind of power lightning protection maintaining method flow chart.
Embodiment
Preferably, a kind of power lightning protection maintaining method, maintaining method step are as follows：
A. a brand-new frequency conversion type surge suppressor is selected first；
B. the power switch of all circuit passbands is secondly disconnected, selects appropriate connecting wire；
C. discharge current road strength is determined again, furthermore is wire of the mark in additional electric pressure drop caused by device end；
D. the PE conductors of each equipment are marked after being operated according to step c again, will be built further according to mark between equipment and SPD
Vertical equipotential link, current potential carry out multistage SPD energy compatibility after connecting；
E. after being installed according to step d by the insertion of frequency conversion type surge suppressor in place, normal work is checked whether；
F. according to step e when frequency conversion type surge suppressor malfunction coefficient window indicates red light, remote signalling terminal output warning
Signal, represent that frequency conversion type surge suppressor breaks down, should change in time, untill normal.
Embodiment 1
A kind of power lightning protection maintaining method, maintaining method step are as follows：
A. a brand-new frequency conversion type surge suppressor is selected first；
B. the power switch of all circuit passbands is secondly disconnected, selects appropriate connecting wire；
C. discharge current road strength is determined again, furthermore is wire of the mark in additional electric pressure drop caused by device end；
D. the PE conductors of each equipment are marked after being operated according to step c again, will be built further according to mark between equipment and SPD
Vertical equipotential link, current potential carry out multistage SPD energy compatibility after connecting；
E. after being installed according to step d by the insertion of frequency conversion type surge suppressor in place, normal work is checked whether；
F. according to step e when frequency conversion type surge suppressor malfunction coefficient window indicates red light, remote signalling terminal output warning
Signal, represent that frequency conversion type surge suppressor breaks down, should change in time, untill normal.
Operation principle：When in thunder and lightning generating process, frequency conversion type surge suppressor is in the wink for scurrying into power line, signal transmssion line
When overvoltage be limited in the voltage range that equipment or system can bear, or by powerful lightning current aerial drainage enter ground, effectively
Protected equipment or system is allowed not to be hit and damage.
Power lightning protection maintaining method in the present embodiment, by increasing frequency conversion type surge suppressor, tool in the source of power supply
Have protection through-current capacity it is big, residual voltage is extremely low, and the response time is fast, and its lightning protection device uses newest arc extinguishing technology, can thoroughly avoid fire
Calamity, and indicated with power supply status, Surge Protector working condition is indicated, it is of a tightly knit structure, it is stable and reliable in work.
Finally it should be noted that：The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention,
Although the present invention is described in detail with reference to the foregoing embodiments, for those skilled in the art, it still may be used
To be modified to the technical scheme described in foregoing embodiments, or equivalent substitution is carried out to which part technical characteristic.
Within the spirit and principles of the invention, any modification, equivalent substitution and improvements made etc., it should be included in the present invention's
Within protection domain.
Claims (8)
1. a kind of power lightning protection maintaining method, it is characterised in that maintaining method step is as follows：
A. a brand-new frequency conversion type surge suppressor is selected first；
B. the power switch of all circuit passbands is secondly disconnected, selects appropriate connecting wire；
C. discharge current road strength is determined again, furthermore is wire of the mark in additional electric pressure drop caused by device end；
D. the PE conductors of each equipment are marked after being operated according to step c again, will be established further according to mark between equipment and SPD etc.
Current potential connects, and current potential carries out multistage SPD energy compatibility after connecting；
E. after being installed according to step d by the insertion of frequency conversion type surge suppressor in place, normal work is checked whether；
F. according to step e when frequency conversion type surge suppressor malfunction coefficient window indicates red light, remote signalling terminal output caution signal,
Represent that frequency conversion type surge suppressor breaks down, should change in time, untill normal.
2. power lightning protection maintaining method according to claim 1, it is characterised in that appropriate connection is led in the step b
Line is divided into data wire, ground wire and power line, and the requirement of the data wire is that its cross-sectional area is when length is more than 0.5m
4mm2, the power line is more than or equal to 16mm with sectional area2Strand copper wire, the ground wire is with being more than or equal to 25mm2
Strand copper wire.
3. power lightning protection maintaining method according to claim 2, it is characterised in that the connecting wire should select short, straight
With thick line, the resistance of ground wire should be less than being equal to 4 Ω.
4. power lightning protection maintaining method according to claim 1, it is characterised in that the frequency conversion type surge suppressor is to adopt
With using temperature-controlled protection circuit, its internal setting Thermal protection.
5. power lightning protection maintaining method according to claim 1, it is characterised in that the SPD in the step d opens for voltage
Pass type component, combined component and votage limit type component combine.
6. power lightning protection maintaining method according to claim 5, it is characterised in that the voltage switch type component, be
There is no that high impedance is presented during instantaneous overvoltage, once response thunder and lightning instantaneous overvoltage, its impedance just sport Low ESR, it is allowed to thunder
Electric current passes through.
7. power lightning protection maintaining method according to claim 5, it is characterised in that the votage limit type component, when no wink
When overvoltage when, be high impedance, but can constantly reduce with the increase of surge current and voltage, its impedance, its current-voltage characteristic
To be strong non-linear.
8. power lightning protection maintaining method according to claim 5, it is characterised in that the combined component, opened by voltage
Pass type component and votage limit type component combine, and can be shown as the characteristic that voltage switch type or votage limit type or both have concurrently, this
It is decided by the alive characteristic of institute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710654581.4A CN107370137A (en) | 2017-08-03 | 2017-08-03 | A kind of power lightning protection maintaining method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710654581.4A CN107370137A (en) | 2017-08-03 | 2017-08-03 | A kind of power lightning protection maintaining method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107370137A true CN107370137A (en) | 2017-11-21 |
Family
ID=60310344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710654581.4A Pending CN107370137A (en) | 2017-08-03 | 2017-08-03 | A kind of power lightning protection maintaining method |
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| CN (1) | CN107370137A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107800112A (en) * | 2017-12-17 | 2018-03-13 | 成都育芽科技有限公司 | A kind of Self-recover overvoltage-undervoltage protector |
| CN111064165A (en) * | 2020-01-19 | 2020-04-24 | 珠海格力电器股份有限公司 | Protection circuit, frequency converter device and electrical equipment |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2681423Y (en) * | 2003-12-17 | 2005-02-23 | 华为技术有限公司 | Lightning protection device |
| CN101382572A (en) * | 2007-09-07 | 2009-03-11 | 孙巍巍 | Novel detection device for protector for surge |
| CN201533160U (en) * | 2009-09-23 | 2010-07-21 | 深圳市槟城电子有限公司 | Anti-surge protection circuit |
| CN102891481A (en) * | 2012-09-21 | 2013-01-23 | 长沙飞波通信技术有限公司 | Lightning protection module and method of grounding-free single-phase power supply |
| CN205565714U (en) * | 2016-03-17 | 2016-09-07 | 广州曜卓通讯工程有限公司 | Lightning protection device with thunder and lightning frequency conversion inhibit feature |
| CN205901696U (en) * | 2016-07-06 | 2017-01-18 | 成都必控科技股份有限公司 | Take multilevel filter subassembly of surge voltage suppression |
-
2017
- 2017-08-03 CN CN201710654581.4A patent/CN107370137A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2681423Y (en) * | 2003-12-17 | 2005-02-23 | 华为技术有限公司 | Lightning protection device |
| CN101382572A (en) * | 2007-09-07 | 2009-03-11 | 孙巍巍 | Novel detection device for protector for surge |
| CN201533160U (en) * | 2009-09-23 | 2010-07-21 | 深圳市槟城电子有限公司 | Anti-surge protection circuit |
| CN102891481A (en) * | 2012-09-21 | 2013-01-23 | 长沙飞波通信技术有限公司 | Lightning protection module and method of grounding-free single-phase power supply |
| CN205565714U (en) * | 2016-03-17 | 2016-09-07 | 广州曜卓通讯工程有限公司 | Lightning protection device with thunder and lightning frequency conversion inhibit feature |
| CN205901696U (en) * | 2016-07-06 | 2017-01-18 | 成都必控科技股份有限公司 | Take multilevel filter subassembly of surge voltage suppression |
Non-Patent Citations (1)
| Title |
|---|
| 刘中平: "浪涌保护器的应用分析", 《低压电器》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107800112A (en) * | 2017-12-17 | 2018-03-13 | 成都育芽科技有限公司 | A kind of Self-recover overvoltage-undervoltage protector |
| CN111064165A (en) * | 2020-01-19 | 2020-04-24 | 珠海格力电器股份有限公司 | Protection circuit, frequency converter device and electrical equipment |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171121 |
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| RJ01 | Rejection of invention patent application after publication |