CN103151758A - Voltage and current type electric leakage plug - Google Patents
Voltage and current type electric leakage plug Download PDFInfo
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- CN103151758A CN103151758A CN2013101047227A CN201310104722A CN103151758A CN 103151758 A CN103151758 A CN 103151758A CN 2013101047227 A CN2013101047227 A CN 2013101047227A CN 201310104722 A CN201310104722 A CN 201310104722A CN 103151758 A CN103151758 A CN 103151758A
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- electric leakage
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Abstract
The invention relates to a voltage and current type electric leakage plug, which comprises a plug, a tripping mechanism, a tripping circuit, a power source, an electric leakage integration circuit, a zero-sequence current transformer and a current transformer which is arranged on a protection earth line in a penetrating way. The electric leakage plug is characterized in that if the voltage on the protection earth line is greater than the safety voltage (36V), the electric leakage plug automatically trips and disengages from the power source; and if the electric leakage of use equipment occurs due to false connecting of the power source and the plug, the electric leakage plug can reliably trip and disengage from the power source, so as to protect the safety of equipment and persons.
Description
Technical field
The present invention relates to a kind of leakage plug, particularly the leakage plug of a kind of voltage-type and current mode.
Background technology
The leakage plug major part of present domestic use is the leakage plug of current mode protection; also there is ground wire electrification to press the protection leakage plug; but; in case the phase line L of supply socket and neutral line N misconnection; and protection ground wire PE and phase line L touch when connecing; the shell of equipment is just charged, at this moment, this class leakage plug can not play the safeguard protection of life.
Existing a kind of omnipotence safety plug is provided with two amplifying circuits, has equally above defective, and power consumption is high, design in complicated, cost is high.
Summary of the invention
The present invention will solve above-mentioned defective, and voltage-type and the current mode of the outage of can tripping reliably when reaching the charged or electric leakage of protection ground wire PE are closed the leakage protecting plug that protects.
the invention provides the leakage plug of a kind of voltage-type and current mode, comprise plug, tripping mechanism, trip circuit 3, power supply 1, electric leakage integrated circuit 2, be through the zero sequence current mutual inductor HL1 on phase line L and neutral line N, described plug is connected with tripping mechanism, tripping mechanism and trip circuit 3 link, trip circuit 3 links with electric leakage integrated circuit 2, electric leakage integrated circuit 2 links with the zero sequence current mutual inductor HL1 that is through on phase line L and neutral line N, the input of power supply 1 is connected on phase line L and neutral line N, power supply 1 output and electric leakage integrated circuit 2, trip circuit 3 links, the leakage plug that it is characterized in that a kind of voltage-type and current mode comprises the current transformer HL2 that is through on protection ground wire PE, piezo-resistance RV1, high-voltage capacitance C1, resistance R 1, an end that wherein is through the current transformer HL2 armature winding on protection ground wire PE links with the output of protecting ground wire PE, being through the other end of the current transformer HL2 armature winding on protection ground wire PE and the end of piezo-resistance RV1 links, the end of the other end of piezo-resistance RV1 and high-voltage capacitance C1 links, one end of the other end of high-voltage capacitance C1 and resistance R 1 links, the other end of resistance R 1 and neutral line N link, the current transformer HL2 secondary winding that is through on protection ground wire PE links with the zero sequence current mutual inductor HL1 that is through on phase line L and neutral line N.
The secondary winding that is through the current transformer HL2 on protection ground wire PE that the present invention further arranges is in 1 circle.
Wherein be through an end of the current transformer HL2 secondary winding on protection ground wire PE, the other end closure of the current transformer HL2 secondary winding on passing the zero sequence current mutual inductor HL1 that is through on phase line L and neutral line N and being through protection ground wire PE is connected.
Advantage of the present invention: improved comprehensive, the reliability of leakage plug protection, the Hangzhoupro jamming performance is strong, and cost is low.
Below in conjunction with drawings and Examples explanation detailed content of the present invention.
Description of drawings
Fig. 1 is schematic diagram and the circuit theory diagrams of the embodiment of the present invention.
Embodiment
as shown in Figure 1, the leakage plug of a kind of voltage-type and current mode, comprise plug, tripping mechanism, trip circuit, power supply, the electric leakage integrated circuit, zero sequence current mutual inductor, be through the current transformer on the protection ground wire, a described end that is through the current transformer HL2 armature winding on protection ground wire PE links with the output of protecting ground wire PE, being through the other end of the current transformer HL2 armature winding on protection ground wire PE and the end of piezo-resistance RV1 links, the end of the other end of piezo-resistance RV1 and high-voltage capacitance C1 links, one end of the other end of high-voltage capacitance and resistance R 1 links, the other end of resistance R 1 and neutral line N link, an end that is through the current transformer HL2 secondary winding on protection ground wire PE passes zero sequence current mutual inductor HL1 and links with the other end closure that is through the current transformer HL2 secondary winding on protection ground wire PE, therefore, the secondary winding that to be through current transformer HL2 and zero sequence current mutual inductor HL1 on protection ground wire PE the be Current Transformer HL2 fork-like farm tool used in ancient China of having connected.
When the normal wiring of standard, electric leakage occur as equipment itself when socket, this moment, leakage plug was protected by the disconnected lock of normal leakage function.
Touch as the protection ground wire of socket and phase line and connect (equipment is without electric leakage) when not connecing the earth; protection ground wire and device housings just have voltage; this voltage is when surpassing safe voltage (36V); piezo-resistance RV1 opens conducting; voltage is applied to the elementary two ends of current transformer HL2 that are through on protection ground wire PE; the secondary induced current that just produces of current transformer HL2; this inducing current passes to zero sequence current mutual inductor HL1; make zero sequence current mutual inductor HL1 output electric leakage signal; leakage plug tripping operation power-off protection reaches the voltage-type defencive function.
Touch as the phase line of socket and neutral line misconnection with protecting simultaneously and receive phase line (equipment is without electric leakage; it is inoperative that this now looks like voltage-type); this moment is during people touch apparatus shell, and leakage current is delivered to zero sequence current mutual inductor HL1 and makes zero sequence current mutual inductor HL1 produce an electric leakage signal leakage plug tripping operation power-off protection by being through current transformer HL2 on protection ground wire PE.
Above embodiment has reached the purpose that voltage-type and current mode are protected.
Claims (3)
1. the leakage plug of a voltage-type and current mode, comprise plug, tripping mechanism, trip circuit (3), power supply (1), electric leakage integrated circuit (2), be through the zero sequence current mutual inductor (HL1) on phase line L and neutral line N, described plug is connected with tripping mechanism, tripping mechanism and trip circuit (3) link, trip circuit (3) links with electric leakage integrated circuit (2), electric leakage integrated circuit (2) links with the zero sequence current mutual inductor (HL1) that is through on phase line L and neutral line N, the input of power supply (1) is connected on phase line L and neutral line N, power supply (1) output and electric leakage integrated circuit (2), trip circuit (3) links, the leakage plug that it is characterized in that a kind of voltage-type and current mode comprises the current transformer (HL2) that is through on protection ground wire PE, piezo-resistance (RV1), high-voltage capacitance (C1), resistance (R1), an end that wherein is through current transformer (HL2) armature winding on protection ground wire PE links with the output of protecting ground wire PE, being through the other end of current transformer (HL2) armature winding on protection ground wire PE and an end of piezo-resistance (RV1) links, one end of the other end of piezo-resistance (RV1) and high-voltage capacitance (C1) links, the other end of high-voltage capacitance (C1) links with an end of electricity (R1), the other end and the neutral line N of resistance (R1) link, current transformer (HL2) secondary winding that is through on protection ground wire PE links with the zero sequence current mutual inductor (HL1) that is through on phase line L and neutral line N.
2. the type leakage plug of a kind of voltage-type claimed in claim 1 and electric current, is characterized in that the described secondary winding of the current transformer (HL2) on protection ground wire PE that is through is in 1 circle.
3. the leakage plug of a kind of voltage-type claimed in claim 1 and current mode; it is characterized in that a described end that is through current transformer (HL2) secondary winding on protection ground wire PE, the other end closure of current transformer (HL2) secondary winding on passing the zero sequence current mutual inductor (HL1) that is through on phase line L and neutral line N and being through protection ground wire PE is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101047227A CN103151758A (en) | 2013-03-15 | 2013-03-15 | Voltage and current type electric leakage plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101047227A CN103151758A (en) | 2013-03-15 | 2013-03-15 | Voltage and current type electric leakage plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103151758A true CN103151758A (en) | 2013-06-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101047227A Pending CN103151758A (en) | 2013-03-15 | 2013-03-15 | Voltage and current type electric leakage plug |
Country Status (1)
| Country | Link |
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| CN (1) | CN103151758A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5793587A (en) * | 1997-08-18 | 1998-08-11 | Hubbell Incorporated | Dual trip level ground fault interrupter |
| CN201054492Y (en) * | 2007-07-10 | 2008-04-30 | 艾欧史密斯(中国)热水器有限公司 | A three-polarity break current leakage protection device with ground cable current/voltage detection |
| CN102364797A (en) * | 2011-11-10 | 2012-02-29 | 江苏省电力公司射阳县供电公司 | Overvoltage leakage protector |
| CN102646956A (en) * | 2012-04-18 | 2012-08-22 | 刘睿刚 | Electric leakage protection device |
| CN203119446U (en) * | 2013-03-15 | 2013-08-07 | 王继杰 | Voltage type and current type electric leakage plug |
-
2013
- 2013-03-15 CN CN2013101047227A patent/CN103151758A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5793587A (en) * | 1997-08-18 | 1998-08-11 | Hubbell Incorporated | Dual trip level ground fault interrupter |
| CN201054492Y (en) * | 2007-07-10 | 2008-04-30 | 艾欧史密斯(中国)热水器有限公司 | A three-polarity break current leakage protection device with ground cable current/voltage detection |
| CN102364797A (en) * | 2011-11-10 | 2012-02-29 | 江苏省电力公司射阳县供电公司 | Overvoltage leakage protector |
| CN102646956A (en) * | 2012-04-18 | 2012-08-22 | 刘睿刚 | Electric leakage protection device |
| CN203119446U (en) * | 2013-03-15 | 2013-08-07 | 王继杰 | Voltage type and current type electric leakage plug |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130612 |