CN203522174U - Lightning protection device for single-phase leakage switch - Google Patents
Lightning protection device for single-phase leakage switch Download PDFInfo
- Publication number
- CN203522174U CN203522174U CN201320688125.9U CN201320688125U CN203522174U CN 203522174 U CN203522174 U CN 203522174U CN 201320688125 U CN201320688125 U CN 201320688125U CN 203522174 U CN203522174 U CN 203522174U
- Authority
- CN
- China
- Prior art keywords
- lightning protection
- phase
- leakage switch
- resistance
- piezo
- 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.)
- Expired - Lifetime
Links
- 208000025274 Lightning injury Diseases 0.000 claims description 7
- 230000006378 damage Effects 0.000 abstract description 2
- 230000005611 electricity Effects 0.000 abstract 1
- 230000001939 inductive effect Effects 0.000 abstract 1
- APTZNLHMIGJTEW-UHFFFAOYSA-N pyraflufen-ethyl Chemical compound C1=C(Cl)C(OCC(=O)OCC)=CC(C=2C(=C(OC(F)F)N(C)N=2)Cl)=C1F APTZNLHMIGJTEW-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
Images
Abstract
The utility model discloses a lightning protection device for a single-phase leakage switch. According to the utility model, a lightning protection main circuit and a lightning failure indicator are connected between the phase pole, the zero pole and the ground pole on one side of the single-phase leakage switch. A first piezoresistor and a second piezoresistor for forming the lightning protection main circuit and one end of a gas discharge tube are connected to form connection points. The other end of the gas discharge tube is connected with the phase pole, the zero pole and the ground pole separately. Light-emitting diodes, resistors and diodes forming the lightning failure indicator are in forward series connection and then connected between the connection points and the ground pole. After installed the lightning protection device on the single-phase leakage switch, the damage of inductive thunder on load side electrical equipment can be prevented, and reliable protection is also provided for personal electricity safety.
Description
Technical field
The utility model relates to leakage switch technical field, the lightning protection device that particularly a kind of single-phase leakage switch is used.
Background technology
Existing DZ47LE single-phase leakage switch K
1by zero sequence current mutual inductor T, leakage tripping device Q, test resistance R, test button K
2and electronic control board A composition, shown in Figure 1.Its main application can be less than 0.1 second time internal cutting off power supply while being protection human electric shock in time, thus the protective effect of playing electric leakage and getting an electric shock.
Due to K switch
1power supply from external circuit, power, when there is Thunderstorm Weather in the external world, often due to external circuit, responded to the impact of thunder, in circuit, produce high voltage and burn out the power consumption equipments such as household electrical appliance or personal electric shock casualty accident occurs, to Electrical Safety, brought unsafe factor.Needing does not have lightning protection facility in existing leakage switch, thereby can not prevent from responding to the decay and preservation person Electrical Safety that thunder may cause load side electric equipment.
Summary of the invention
The lightning protection device that provides a kind of single-phase leakage switch to use is provided the purpose of this utility model, and it can prevent from responding to thunder load side electric equipment is damaged, also for personal Electrical Safety provides reliable protection.
The technical solution that the utility model proposes is such:
The lightning protection device that single-phase leakage switch is used, this single-phase leakage switch K
1be connected between the external circuit phase utmost point and zero utmost point, at single-phase leakage switch K
1between the phase utmost point of one side, zero utmost point and earth polar, be connected to lightning protection device, this lightning protection device is comprised of lightning protection major loop and lightning stroke fault indicator, and described lightning protection major loop is by the 1st piezo-resistance R
y1, the 2nd piezo-resistance R
y2form the 1st piezo-resistance R with gas discharge tube BL
y1one end and the 2nd piezo-resistance R
y2one end is connected to single-phase leakage switch K
1the phase utmost point of one side and zero utmost point, the 1st piezo-resistance R
y1the other end and the 2nd piezo-resistance R
y2the other end and gas discharge tube BL one end are connected to node J, and the gas discharge tube BL other end is connected with earth polar; Described lightning stroke fault indicator is by light-emitting diode D
1, resistance R
1with diode D
2forward is in series, light-emitting diode D
1positive pole or diode D
2positive pole is connected with node J, diode D
2negative pole or light-emitting diode D
1negative pole is connected with earth polar.
Compared with prior art, the utlity model has following beneficial effect:
(1) owing to being provided with lightning protection major loop between the major loop phase utmost point (L) at leakage switch load side, zero utmost point (N) and earth polar (PE); can make thunder-strike current release into the earth (PE); thereby protected leakage switch load side electrical circuit to avoid the destruction of thunderbolt, protected the safety of leakage switch load side electrical equipment normally to use.
(2) in lightning protection device, be also provided with lightning stroke fault indicator, when thunder-strike current is no matter when flicker occurs for the phase utmost point (L) or zero utmost point (N), light-emitting diode D
1there is once flash of light in capital, illustrates that the signal of thunderbolt occurs on the phase utmost point (L) or zero utmost point (N).
(3) as the 1st piezo-resistance R being connected on the phase utmost point (L) or zero utmost point (N)
y1or the 2nd piezo-resistance R
y2once breakdown, now, light-emitting diode D
1meeting Chang Liang, illustrates that the components and parts of lightning protection major loop break down, and keep in repair.
The lightning protection device that this single-phase leakage switch is used, for indoor, is applicable to respond to the occasion of thunder.
Accompanying drawing explanation
Fig. 1 is the electric principle schematic of existing DZ47LE single-phase leakage switch.
Fig. 2 is the electric circuit diagram of the lightning protection device used of a kind of single-phase leakage switch of an embodiment of the utility model.
Embodiment
By embodiment below, the utility model is further elaborated.
Shown in Figure 2, the lightning protection device that a kind of single-phase leakage switch is used is comprised of lightning protection major loop and lightning stroke fault indicator, and it is connected on external circuit single-phase leakage switch K
1between the phase utmost point (L) of one side, zero utmost point (N) and earth polar (PE), lightning protection major loop is by the 1st piezo-resistance R
y1, the 2nd piezo-resistance R
y2form the 1st piezo-resistance R with gas discharge tube BL
y1one end and the 2nd piezo-resistance R
y2one end is connected to single-phase leakage switch K
1the phase utmost point of one side and zero utmost point, the 1st piezo-resistance R
y1the other end and the 2nd piezo-resistance R
y2the other end and gas discharge tube BL one end are connected to node J, and the gas discharge tube BL other end is connected with earth polar.Described lightning stroke fault indicator is by light-emitting diode D
1, resistance R
1with diode D
2forward is in series, light-emitting diode D
1positive pole or diode D
2positive pole is connected with node J, diode D
2negative pole or light-emitting diode D
1negative pole is connected with earth polar.In the present embodiment, the 1st, 2 piezo-resistance R
y1, R
y2all select 20D621SPD piezo-resistance, its nominal through-current capacity I
nfor 5KA, maximum through-current capacity I
maxfor 10KA, operating voltage is 620V, and the response time is less than 25ns.
Claims (1)
1. the lightning protection device that single-phase leakage switch is used, this single-phase leakage switch K
1be connected between the external circuit phase utmost point and zero utmost point, it is characterized in that: at single-phase leakage switch K
1between the phase utmost point of one side, zero utmost point and earth polar, be connected to lightning protection device, this lightning protection device is comprised of lightning protection major loop and lightning stroke fault indicator, and described lightning protection major loop is by the 1st piezo-resistance R
y1, the 2nd piezo-resistance R
y2form the 1st piezo-resistance R with gas discharge tube BL
y1one end and the 2nd piezo-resistance R
y2one end is connected to single-phase leakage switch K
1the phase utmost point of one side and zero utmost point, the 1st piezo-resistance R
y1the other end and the 2nd piezo-resistance R
y2the other end and gas discharge tube BL one end are connected to node J, and the gas discharge tube BL other end is connected with earth polar; Described lightning stroke fault indicator is by light-emitting diode D
1, resistance R
1with diode D
2forward is in series, light-emitting diode D
1positive pole or diode D
2positive pole is connected with node J, diode D
2negative pole or light-emitting diode D
1negative pole is connected with earth polar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320688125.9U CN203522174U (en) | 2013-11-04 | 2013-11-04 | Lightning protection device for single-phase leakage switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320688125.9U CN203522174U (en) | 2013-11-04 | 2013-11-04 | Lightning protection device for single-phase leakage switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203522174U true CN203522174U (en) | 2014-04-02 |
Family
ID=50381049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320688125.9U Expired - Lifetime CN203522174U (en) | 2013-11-04 | 2013-11-04 | Lightning protection device for single-phase leakage switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203522174U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105024340A (en) * | 2015-08-11 | 2015-11-04 | 国网浙江桐乡市供电公司 | Simple overvoltage protection trigger device |
-
2013
- 2013-11-04 CN CN201320688125.9U patent/CN203522174U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105024340A (en) * | 2015-08-11 | 2015-11-04 | 国网浙江桐乡市供电公司 | Simple overvoltage protection trigger device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202957575U (en) | Electric leakage breaker | |
| CN203722205U (en) | Overvoltage and electric leakage protection circuit | |
| CN102354869B (en) | Electricity leakage protection plug with alarm device | |
| CN203522174U (en) | Lightning protection device for single-phase leakage switch | |
| CN202183530U (en) | Electric leakage protection plug with alarming device | |
| CN204190376U (en) | Preionization multi-clearance ceramet gas discharge tube overvoltage protection | |
| CN204030571U (en) | The AC and DC power supply lightning protection device of the wide-voltage range of the large low residual voltage of discharge capacity | |
| CN104953537A (en) | Overload protection switching device | |
| CN203932967U (en) | A kind of coil controller | |
| CN204441857U (en) | A kind of earth leakage protective device | |
| CN204206137U (en) | A kind of protective circuit of refrigeration plant | |
| CN204118729U (en) | The lightning protection thermel protection device of three-phase leakage switch | |
| CN203932969U (en) | A kind of low-voltage leakage protector with over-voltage protecting function | |
| CN106374423A (en) | Energy-saving efficient circuit structure | |
| CN203103909U (en) | Low voltage zero line safety voltage value measuring instrument | |
| CN202503262U (en) | Electric leakage protection device | |
| CN206412749U (en) | The control circuit of the earth leakage protective device of the double protections of ground wire | |
| CN205195233U (en) | Power leakage protector | |
| CN204145287U (en) | A kind of protective circuit of switch power source | |
| CN203747638U (en) | Power frequency transformer's impulse current inhibiting circuit, power frequency transformer and its intrinsically safe power supply | |
| CN201904293U (en) | Bypass self-healing warning device for fuse | |
| CN204089182U (en) | Self-recoverage over-voltage over-current protection device | |
| CN203951159U (en) | A kind of surge protector redundant system | |
| CN207410023U (en) | A kind of not power-off leakage non-electricity protector | |
| CN203504139U (en) | Overvoltage protection device of water-turbine generator set |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140402 |
|
| CX01 | Expiry of patent term |