CN103296541B - Protection off zero and ground connection general-purpose self-checking plug seat - Google Patents
Protection off zero and ground connection general-purpose self-checking plug seat Download PDFInfo
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- CN103296541B CN103296541B CN201310202617.7A CN201310202617A CN103296541B CN 103296541 B CN103296541 B CN 103296541B CN 201310202617 A CN201310202617 A CN 201310202617A CN 103296541 B CN103296541 B CN 103296541B
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Abstract
The present invention's protection off zero and ground connection general-purpose self-checking plug seat, wherein protection off zero is cross-over connection resistance on the zero line and ground wire of single-phase tripolar plug or single-phase three pole sockets, resistance is controlled by selector switch, when externally fed circuit occurs that zero line disconnects or rides on live wire, when the ohmically electric current be connected between zero line and ground wire rises to a certain numerical value, user's earth leakage protective device can trip immediately, the power consumption equipment of effective protection user exempts from damage, ground connection general-purpose self-checking plug seat is on single-phase tripolar plug or single-phase three pole sockets, install protective seletion switch off zero and safe self-inspection indicator light and test button, if the correct position of bright explanation live wire L1 while of indicator light SD2 and indicator light SD3, otherwise there is Miswire to wait to fix a breakdown and use again, circuit of the present invention is simple, cost is low, easy to operate advantage, very with practical value.
Description
Technical field
The present invention relates to the safe power supply of low-voltage power supply system, safety utilization of electric power, earthing detection and protection field off zero, particularly protection off zero and ground connection general-purpose self-checking plug seat.
Background technology
Phenomenon off zero is there is in electric power system, the zero line that particularly residential quarter three-phase and four-line is powered breaks suddenly, part family voltage will be caused to increase above suddenly 250V when three-phase firewire load is serious uneven and even reach about 400V, or zero line is disconnected to be dropped on a certain phase firewire, a large amount of household electrical appliance will be caused to be burnt, similar accident, once occur, does not also have effective safeguard measure at present; Current each urban and rural housing or industrial and mining enterprises all use a large amount of single-phase tripolar plug seats, some family or enterprise security are realized not strong, house decoration and new equipment install unearthed line or ground wire does not meet safety requirements, be directed at and finally bring disaster to into the large Woe of loss of life or personal injury, how to find the potential safety hazard detecting power consumption equipment, lack simple and effective measure at present.Such as the simplest 220 volts of single-phase three pole sockets, because existing socket is that protection against electric shock jack gap is little and baffle plate is housed, voltage test pencil or universal meter indicator not easily inject, cannot intuitively confirm ground wire Problems existing, a kind of easy ground connection general-purpose self-checking plug seat of anxious palpus judge the fail safe of power consumption equipment and the reliability of earth system, to eliminate safe hidden trouble, stop the generation of accident.
Summary of the invention
The object of the invention is for above-mentioned defect, provide one to have protection off zero, meet safety requirements, easy and simple to handle, the protection off zero and ground connection general-purpose self-checking plug seat that judge single-phase three pole socket security performances can be detected.
Technical scheme of the present invention is protection off zero and ground connection general-purpose self-checking plug seat, it is characterized in that installing protective seletion switch off zero and safe self-inspection indicator light and test button on single-phase tripolar plug or single-phase three pole sockets, the circuit structure of protection off zero is zero line N1 contact resistance R1 in single-phase tripolar plug or single-phase three pole socket CHT1, the resistance R1 other end connects protective seletion K switch 1 off zero, protective seletion K switch 1 other end off zero connects safety line E1, protective seletion K switch 1 off zero is equivalent to resistance R1 and is connected across between zero line N1 and safety line E1 when connecting, single-phase tripolar plug CHT1 inserts single-phase three pole sockets of user, when externally fed circuit occurs that zero line disconnects or rides on live wire, due to the different three-phase voltage disequilibrium of three phase supply power source loads, between the zero line N1 of user and safety line E1, voltage may increase, when the electric current being connected across resistance R1 between zero line N1 and safety line E1 rises to a certain numerical value, the earth leakage protective of user can trip immediately, the power consumption equipment of effective protection user exempts from damage, between safety line E1 and live wire L1 and between safety ground E1 and zero line N1 and between live wire L1 and zero line N1, self-inspection indicator light and test button are installed respectively, bright and secretly judge safety line E1 and zero line N1 and live wire L1 whether position is correct separately according to indicator light, confirmed further by test button again, particular circuit configurations is that in single-phase tripolar plug or single-phase three pole socket CHT1, safety line E1 connects protective seletion K switch 1 off zero simultaneously, test button SB1, indicator light SD1 and indicator light SD2, indicator light SD1 contact resistance R2, protective seletion K switch 1 other end contact resistance R1 off zero, the resistance R1 other end is connected zero line N1 together with the resistance R2 other end, indicator light SD2 other end contact resistance R3, test button SB1 other end contact resistance R4, the resistance R3 other end is connected live wire L1 together with the resistance R4 other end, zero line N1 connects indicator light SD3 and test button SB2, indicator light SD3 other end contact resistance R5, test button SB2 other end contact resistance R6, the resistance R5 other end is connected live wire L1 together with the resistance R6 other end, indicator light SD1, indicator light SD2 and indicator light SD3 uses light-emitting diode or neon lamp, resistance R2 during use light-emitting diode, the resistance of resistance R5 and resistance R3 selects 82K about Ω, a diode can also be increased connect with light-emitting diode and improve reverse breakdown voltage and protect light-emitting diode, resistance R2 during use neon lamp, the resistance of resistance R3 and resistance R5 selects more than 1M Ω, when single-phase tripolar plug CHT1 inserts in single-phase three pole sockets of user, if the correct position of bright explanation live wire L1 while of indicator light SD2 and indicator light SD3, SB2 is reactionless for pressure test button, after pressure test button SB1, the tripping operation of user's earth leakage protective illustrates that single-phase three pole sockets of user are safe and reliable, otherwise there is Miswire to wait to fix a breakdown and use again, the resistance of resistance R1 is 300-500 about Ω, the resistance of resistance R4 and resistance R6 is 6.8K about Ω.
Protection off zero of the present invention and ground connection general-purpose self-checking plug seat have protector off zero, phenomenon off zero is there is in electric power system, the zero line that particularly residential quarter three-phase and four-line is powered breaks suddenly, part family voltage will be caused to increase above suddenly 250V when three-phase firewire load is serious uneven and even reach about 400V, or zero line is disconnected to be dropped on a certain phase firewire, a large amount of household electrical appliance will be caused to be burnt, similar accident is once occur, and protector off zero can avoid electrical appliance by the phenomenon of burning; The single-phase three pole socket safety grounds with users such as the correct connection to safety ground, the safety ground to power supply, electricity consumption, the commercial house, residential quarters, independent resident family etc. and power consumption equipments detect, and guarantee safety utilization of electric power.The advantage that circuit of the present invention is simple, cost is low, easy to operate, very with practical value.
Accompanying drawing explanation
Fig. 1 protection off zero and general-purpose self-checking plug seat circuit one schematic diagram
Fig. 2 protection off zero and general-purpose self-checking plug seat circuit two schematic diagram
Fig. 3 protection off zero and ground connection general-purpose self-checking plug outline plan schematic diagram
L1 live wire, N1 zero line, E1 safety line, CHT1 single-phase tripolar plug or single-phase three pole sockets, K1 protective seletion switch off zero, SB1-SB2 test button, SD1-SD3 indicator light, R1-R6 resistance in Fig. 1, Fig. 2.
L live wire, N zero line, E safety line, CH single-phase tripolar plug, K protective seletion switch off zero, SB test button, SD indicator light in Fig. 3.
Embodiment
Fig. 1, Fig. 2 is protection off zero and general-purpose self-checking plug seat circuit theory diagrams, protection off zero and ground connection general-purpose self-checking plug seat install protective seletion switch off zero and safe self-inspection indicator light and test button at single-phase tripolar plug or single-phase three pole sockets, the circuit structure of protection off zero is zero line N1 contact resistance R1 in single-phase tripolar plug or single-phase three pole socket CHT1, the resistance R1 other end connects protective seletion K switch 1 off zero, protective seletion K switch 1 other end off zero connects safety line E1, protective seletion K switch 1 off zero is equivalent to resistance R1 and is connected across between zero line N1 and safety line E1 when connecting, operation principle is that single-phase tripolar plug CHT1 inserts single-phase three pole sockets of user, when externally fed circuit occurs that zero line disconnects or rides on live wire, due to the different three-phase voltage disequilibrium of three phase supply power source loads, between the zero line N1 of user and safety line E1, voltage may increase, when the electric current being connected across resistance R1 between zero line N1 and safety line E1 rises to a certain numerical value, zero line N1 exceedes live wire L1 electric current and is also equivalent to electric leakage, the earth leakage protective of user can trip immediately, the power consumption equipment of effective protection user exempts from damage, between safety line E1 and live wire L1 and between safety ground E1 and zero line N1 and between live wire L1 and zero line N1, self-inspection indicator light and test button are installed respectively, bright and secretly judge safety line E1 and zero line N1 and live wire L1 whether position is correct separately according to indicator light, confirmed further by test button again.If indicator light SD2 and the correct position of indicator light SD3 simultaneously bright explanation live wire L1 between live wire L1 and zero line N1 between safety line E1 and live wire L1; if at this moment live wire L1 or zero line N1 has the earth leakage protective of electric leakage user also can trip immediately, the effective protection person and power consumption equipment safety.Embodiment sees figures.1.and.2, in single-phase tripolar plug or single-phase three pole socket CHT1, safety line E1 connects protective seletion K switch 1 off zero simultaneously, test button SB1, indicator light SD1 and indicator light SD2, indicator light SD1 contact resistance R2, protective seletion K switch 1 other end contact resistance R1 off zero, the resistance R1 other end is connected zero line N1 together with the resistance R2 other end, indicator light SD2 other end contact resistance R3, test button SB1 other end contact resistance R4, the resistance R3 other end is connected live wire L1 together with the resistance R4 other end, zero line N1 connects indicator light SD3 and test button SB2, indicator light SD3 other end contact resistance R5, test button SB2 other end contact resistance R6, the resistance R5 other end is connected live wire L1 together with the resistance R6 other end, .Operation principle illustrates: indicator light SD1, indicator light SD2 and indicator light SD3 uses light-emitting diode or neon lamp, resistance R2 during use light-emitting diode, the resistance of resistance R5 and resistance R3 selects 82K about Ω, a diode can also be increased connect with light-emitting diode and improve reverse breakdown voltage and protect light-emitting diode, resistance R2 during use neon lamp, the resistance of resistance R3 and resistance R5 selects more than 1M Ω, when single-phase tripolar plug CHT1 inserts in single-phase three pole sockets of user, if the correct position of bright explanation live wire L1 while of indicator light SD2 and indicator light SD3, SB2 is reactionless for pressure test button, button SB1 is leak(age) test button, after pressure test button SB1, the tripping operation of user's earth leakage protective illustrates that single-phase three pole sockets of user are safe and reliable, otherwise there is Miswire to wait to fix a breakdown and use again, the resistance of resistance R1 is 300-500 about Ω, the resistance of resistance R4 and resistance R6 is 6.8K about Ω.
Fig. 3 is protection off zero and ground connection general-purpose self-checking plug outline plan schematic diagram, and its inside is provided with protection off zero and ground connection general-purpose self-checking plug seat circuit.
Claims (1)
1. protection off zero and ground connection general-purpose self-checking plug seat, it is characterized in that installing protective seletion switch off zero and safe self-inspection indicator light and test button on single-phase tripolar plug or single-phase three pole sockets, the circuit structure of protection off zero is zero line N1 contact resistance R1 in single-phase tripolar plug or single-phase three pole socket CHT1, the resistance R1 other end connects protective seletion K switch 1 off zero, protective seletion K switch 1 other end off zero connects safety line E1, protective seletion K switch 1 off zero is equivalent to resistance R1 and is connected across between zero line N1 and safety line E1 when connecting, when externally fed circuit occurs that zero line disconnects or rides on live wire, due to the different three-phase voltage disequilibrium of three phase supply power source loads, when the electric current being connected across resistance R1 between zero line N1 and safety line E1 rises to a certain numerical value, the earth leakage protective of user can trip immediately, the power consumption equipment of effective protection user exempts from damage, between safety line E1 and live wire L1 and between safety ground E1 and zero line N1 and between live wire L1 and zero line N1, self-inspection indicator light and test button are installed respectively, in single-phase tripolar plug or single-phase three pole socket CHT1, safety line E1 connects protective seletion K switch 1 off zero simultaneously, test button SB1, indicator light SD1 and indicator light SD2, indicator light SD1 contact resistance R2, protective seletion K switch 1 other end contact resistance R1 off zero, the resistance R1 other end is connected zero line N1 together with the resistance R2 other end, indicator light SD2 other end contact resistance R3, test button SB1 other end contact resistance R4, the resistance R3 other end is connected live wire L1 together with the resistance R4 other end, zero line N1 connects indicator light SD3 and test button SB2, indicator light SD3 other end contact resistance R5, test button SB2 other end contact resistance R6, the resistance R5 other end is connected live wire L1 together with the resistance R6 other end, indicator light SD1, indicator light SD2 and indicator light SD3 uses light-emitting diode or neon lamp, the resistance of resistance R1 is 300-500 Ω, the resistance of resistance R4 and resistance R6 is 6.8K Ω.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410350950.7A CN104104054B (en) | 2013-05-16 | 2013-05-16 | Relay control type protector off zero |
| CN201410350947.5A CN104124580B (en) | 2013-05-16 | 2013-05-16 | Single-phase three utmost point power distributors of protection off zero and the self-inspection of ground connection general-purpose |
| CN201410350979.5A CN104158030B (en) | 2013-05-16 | 2013-05-16 | The energy-saving protection off zero of capacitor step-down and ground connection general-purpose self-checking plug seat |
| CN201410350980.8A CN104103973B (en) | 2013-05-16 | 2013-05-16 | Zero protection and grounding general self-inspection single-phase three-pole integrated socket |
| CN201310202617.7A CN103296541B (en) | 2013-05-16 | 2013-05-16 | Protection off zero and ground connection general-purpose self-checking plug seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310202617.7A CN103296541B (en) | 2013-05-16 | 2013-05-16 | Protection off zero and ground connection general-purpose self-checking plug seat |
Related Child Applications (5)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410350988.4A Division CN104143810A (en) | 2013-05-16 | 2013-05-16 | Null wire disconnection protector |
| CN201410350980.8A Division CN104103973B (en) | 2013-05-16 | 2013-05-16 | Zero protection and grounding general self-inspection single-phase three-pole integrated socket |
| CN201410350947.5A Division CN104124580B (en) | 2013-05-16 | 2013-05-16 | Single-phase three utmost point power distributors of protection off zero and the self-inspection of ground connection general-purpose |
| CN201410350950.7A Division CN104104054B (en) | 2013-05-16 | 2013-05-16 | Relay control type protector off zero |
| CN201410350979.5A Division CN104158030B (en) | 2013-05-16 | 2013-05-16 | The energy-saving protection off zero of capacitor step-down and ground connection general-purpose self-checking plug seat |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103296541A CN103296541A (en) | 2013-09-11 |
| CN103296541B true CN103296541B (en) | 2015-10-07 |
Family
ID=49097049
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410350947.5A Expired - Fee Related CN104124580B (en) | 2013-05-16 | 2013-05-16 | Single-phase three utmost point power distributors of protection off zero and the self-inspection of ground connection general-purpose |
| CN201310202617.7A Expired - Fee Related CN103296541B (en) | 2013-05-16 | 2013-05-16 | Protection off zero and ground connection general-purpose self-checking plug seat |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410350947.5A Expired - Fee Related CN104124580B (en) | 2013-05-16 | 2013-05-16 | Single-phase three utmost point power distributors of protection off zero and the self-inspection of ground connection general-purpose |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN104124580B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105931877B (en) * | 2016-05-03 | 2017-08-22 | 盐城师范学院 | Bimetal leaf dams and carrier wave remote sensing type socket panel |
| CN105977725A (en) * | 2016-05-24 | 2016-09-28 | 郭森明 | Safety socket |
| CN107959148A (en) * | 2016-10-14 | 2018-04-24 | 中国电力科学研究院 | A kind of remote-controlled direct current jack with current-limiting function |
| CN106482354A (en) * | 2016-11-28 | 2017-03-08 | 广东万家乐燃气具有限公司 | A kind of electric heater water outlet power-off and earth leakage protective device |
| CN106486964A (en) * | 2016-12-19 | 2017-03-08 | 贺州学院 | A kind of Intelligent socket |
| CN108919039A (en) * | 2018-05-16 | 2018-11-30 | 广东工业大学 | A kind of three-pin plug, Three-hole socket detection device, method, system and equipment |
| CN114156702B (en) * | 2021-11-26 | 2023-08-25 | 国网辽宁省电力有限公司大连供电公司 | Zero line broken wire protection type power strip |
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| CN2409659Y (en) * | 1999-10-28 | 2000-12-06 | 汤健 | Electrical safety experiment case for single-phase three-hole planar electrode socket and electric leakage protector |
| CN2727946Y (en) * | 2004-08-20 | 2005-09-21 | 李文星 | An electric leakage switch |
| CN202563045U (en) * | 2012-05-28 | 2012-11-28 | 李宗跃 | Right-or-wrong judgment display for wiring of indoor single-phase three-hole socket |
| CN203760767U (en) * | 2013-05-16 | 2014-08-06 | 介国安 | Grounding all-purpose self-checking plug head seat having null-line disconnection protection function |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2031971U (en) * | 1988-01-22 | 1989-02-01 | 吴长勤 | Safety automatic controller for electricity-consuming appliances |
| JP3312172B2 (en) * | 1998-12-03 | 2002-08-05 | 中国電力株式会社 | Distribution line ground fault protection relay test method and apparatus |
| CN101877477A (en) * | 2009-05-01 | 2010-11-03 | 杨树昌 | Leakage protection switch for preventing three-phase power circuit from generating high voltage |
| CN201985508U (en) * | 2011-04-22 | 2011-09-21 | 黄灿育 | Zero line break protector and connecting structure thereof |
-
2013
- 2013-05-16 CN CN201410350947.5A patent/CN104124580B/en not_active Expired - Fee Related
- 2013-05-16 CN CN201310202617.7A patent/CN103296541B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2409659Y (en) * | 1999-10-28 | 2000-12-06 | 汤健 | Electrical safety experiment case for single-phase three-hole planar electrode socket and electric leakage protector |
| CN2727946Y (en) * | 2004-08-20 | 2005-09-21 | 李文星 | An electric leakage switch |
| CN202563045U (en) * | 2012-05-28 | 2012-11-28 | 李宗跃 | Right-or-wrong judgment display for wiring of indoor single-phase three-hole socket |
| CN203760767U (en) * | 2013-05-16 | 2014-08-06 | 介国安 | Grounding all-purpose self-checking plug head seat having null-line disconnection protection function |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104124580A (en) | 2014-10-29 |
| CN103296541A (en) | 2013-09-11 |
| CN104124580B (en) | 2016-05-18 |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent for invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 325200 Ruian City, south of the Yangtze River in the city of riverside Street standard factory building light industrial zone, the first floor of the ninth floor of the first floor of the Thai Electrical Appliance Co., Ltd., four Applicant after: Jie Guoan Address before: 325207 Zhejiang province Ruian City Feiyun Town Yun Zhou Industrial Zone Thai Electric Appliance Co. Ltd Applicant before: Jie Guoan |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171031 Address after: Hedong District of Tianjin City Road 300161 Linke Yi Xuan 5-4-501 Patentee after: Li Yong Address before: 325200 Ruian City, south of the Yangtze River in the city of riverside Street standard factory building light industrial zone, the first floor of the ninth floor of the first floor of the Thai Electrical Appliance Co., Ltd., four Patentee before: Jie Guoan |
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| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151007 Termination date: 20180516 |
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| CF01 | Termination of patent right due to non-payment of annual fee |