CN101741059B - Intelligent electronic leakage protector - Google Patents
Intelligent electronic leakage protector Download PDFInfo
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- CN101741059B CN101741059B CN2009101570105A CN200910157010A CN101741059B CN 101741059 B CN101741059 B CN 101741059B CN 2009101570105 A CN2009101570105 A CN 2009101570105A CN 200910157010 A CN200910157010 A CN 200910157010A CN 101741059 B CN101741059 B CN 101741059B
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Abstract
The invention discloses an intelligent electronic leakage protector, which comprises a shell, and a heavy-current relay and a current transformer arranged in the shell, wherein the current transformer is connected with an input end of the heavy-current relay; a single-phase multi-rate electric energy measurement chip is also arranged in the shell; and an interface chip, a leakage current sampling loop, a current sampling loop, a resistance voltage-dividing sampling loop, a driving circuit and an outlet detection feedback circuit are connected to the single-phase multi-rate electric energy measurement chip. The intelligent electronic leakage protector fully and effectively uses an information transmission function of an intelligent electric meter to make an electricity utilization department grasp electricity utilization conditions and safe electricity utilization conditions of terminal residents in real time, and work out a maintenance program initiatively so as to ensure that users are satisfied and the maintenance cost is reduced.
Description
Technical field
The present invention relates to a kind of device that is used for electric power system, a kind of specifically intelligent electronic leakage protector.
Background technology
Existing earth leakage protective device only has simple function; Like basic creepage protection function, automatic switching-in function etc., but this protector can't be realized functions such as following leakage current detection, electric energy detection, current detecting, voltage detecting, power detection, tripping operation control, RS485 communication or the carrier communication of existing intelligent electric meter, sound and light alarm, manual test simultaneously.So the information transfer capability that existing earth leakage protective device can't effectively use intelligent electric meter to have makes electricity consumption department in time grasp terminal residential electricity consumption situation, safety utilization of electric power situation, initiatively make maintenance program, guarantee that the user is satisfied, reduces maintenance cost.
Summary of the invention
The objective of the invention is to design a kind of intelligent electronic leakage protector.
What the present invention will solve is that existing earth leakage protective device function is simple; The information transfer capability that can't effectively use intelligent electric meter to have; Make electricity consumption department in time grasp terminal residential electricity consumption situation, safety utilization of electric power situation, initiatively make maintenance program, guarantee the problem of user's satisfaction and reduction maintenance cost.
One of technical scheme of the present invention is: it comprises housing; Be located at the high-current relay summation current transformer in the housing; Current transformer is connected to the input of high-current relay; Also be provided with single-phase multiple rate electric energy computation chip in the housing; The outlet of passing through leakage current sampling circuit, the current sampling circuit that is used to gather electric current that A/D converter connects, the electric resistance partial pressure sampling circuit that is used to gather voltage, being used to drive the drive circuit of relay and be used for the relay output end current detecting that be connected with the interface chip that is used to communicate by letter on this single-phase multiple rate electric energy computation chip, is used to gather leakage current detects feedback loop, and single-phase multiple rate electric energy computation chip is handled and controlled the signal that detects feedback loop from interface chip, leakage current sampling circuit, current sampling circuit, electric resistance partial pressure sampling circuit, drive circuit and outlet; The leakage current sampling circuit is connected with current transformer, and current sampling circuit is connected with manganese copper diverter, and manganese copper diverter is connected with the N end of power input, and the electric resistance partial pressure sampling circuit is connected with the N end and the L end of power input
Two of technical scheme of the present invention is: it comprises housing; Be located at the high-current relay summation current transformer in the housing; Current transformer is connected to high-current relay has input; Also be provided with central processing unit in the housing; Be connected with electric energy computation chip, the interface chip that is used to communicate by letter of metering electric weight, the leakage current sampling circuit that is used to gather leakage current, the outlet that is used to drive the drive circuit of relay and be used for the relay output end current detecting on the central processing unit and detect feedback loop, central processing unit is used for the signal that detects feedback loop from electric energy computation chip, interface chip, leakage current sampling circuit, drive circuit and outlet is handled and controlled; The leakage current sampling circuit is connected with current transformer; Be connected with the current sampling circuit of gathering electric current and the electric resistance partial pressure sampling circuit of gathering voltage on the described electric energy computation chip; Current sampling circuit is connected with manganese copper diverter; Manganese copper diverter is connected with the N end of power input, and the electric resistance partial pressure sampling circuit is connected with the N end and the L end of power input.
Advantage of the present invention is: the information transfer capability that the present invention fully effectively uses intelligent electric meter to have, and make electricity consumption department in time grasp terminal residential electricity consumption situation, safety utilization of electric power situation, initiatively make maintenance program, guarantee that the user is satisfied, reduces maintenance cost.
Description of drawings
Fig. 1 is the present invention program one a schematic block circuit diagram.
Fig. 2 is a surface structure sketch map of the present invention.
Fig. 3 is the left surface sketch map of Fig. 2.
Fig. 4 is the present invention program two a schematic block circuit diagram.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further described:
Embodiment one
Like Fig. 1, Fig. 2 and shown in Figure 3, intelligent electronic leakage protector of the present invention comprises housing 1, is located at the high-current relay summation current transformer in the housing 1, and current transformer is connected to the input of high-current relay.Be provided with single-phase multiple rate electric energy computation chip in the housing 1; Be connected with the interface chip that is used to communicate by letter on this single-phase multiple rate electric energy computation chip, be used to gather pass through leakage current sampling circuit (unit), the current sampling circuit (unit) that is used to gather electric current, the electric resistance partial pressure sampling circuit (unit) that is used to gather voltage that A/D converter connects, being used to drive the drive circuit (unit) of relay and the outlet that is used for the relay output end current detecting detects feedback loop (unit) of leakage current, single-phase rate electric energy computation chip again is to handling and control from the signal of interface chip, leakage current sampling circuit, current sampling circuit, electric resistance partial pressure sampling circuit, drive circuit and outlet detection feedback loop; The leakage current sampling circuit is connected with current transformer, and current sampling circuit is connected with manganese copper diverter, and manganese copper diverter is connected with the N end of power input, and the electric resistance partial pressure sampling circuit is connected with the N end and the L end of power input.
Single-phase multiple rate electric energy computation chip is the single-phase multiple rate electric energy computation chip of band 8052MCU; Transducer is 10 A/D converters; Interface chip is with RS485 interface chip or carrier communication chip; High-current relay is used the double-pole single-throw (D.P.S.T.) high-current relay, and outlet detects feedback loop and uses photoelectrical coupler; Be connected with protective circuit on the RS485 interface chip, in order to be burnt out on the protection RS485 interface chip.
The eeprom memory that also is connected with on the single-phase multiple rate electric energy computation chip, the function of this memory are to be used to store data to take data at any time with power supply power meter reading terminal.
Also be provided with the resistance-capacitance depressurization electric power loop in the housing 1, be connected in the L end and the N end of power input; Be connected with the closing by hand switch on the high-current relay.Housing 1 is provided with communication terminal 2 and installing hole 3.
Power input is connected with power supply indicator.Be connected with on the single-phase multiple rate electric energy computation chip: alarm buzzer, the test button that is used to playback, communication indicator light, electric leakage indicator light, overload light, combined floodgate indicator light.
The present invention is Eco-power earth leakage protective device, has functions such as leakage current detection, electric energy detection, power detection, tripping operation control, RS485 communication, sound and light alarm, manual test.
Embodiment two
As shown in Figure 4; Intelligent electronic leakage protector of the present invention; Comprise housing; Be located at the high-current relay summation current transformer in the housing; Current transformer is connected to high-current relay has input; Be provided with central processing unit in the housing, be connected with on the central processing unit metering electric weight electric energy computation chip, the interface chip that is used to communicate by letter, be used to gather leakage current leakage current sampling circuit (unit), be used to drive the drive circuit (unit) of relay and the outlet that is used for the relay output end current detecting detects feedback loop (unit), central processing unit is used for handling and control from the signal of electric energy computation chip, interface chip, leakage current sampling circuit, drive circuit and outlet detection feedback loop; The leakage current sampling circuit is connected with current transformer; Be connected with the current sampling circuit (unit) of gathering electric current and the electric resistance partial pressure sampling circuit (unit) of gathering voltage on the described electric energy computation chip; Current sampling circuit is connected with manganese copper diverter; Manganese copper diverter is connected with the N end of power input, and the electric resistance partial pressure sampling circuit is connected with the N end and the L end of power input.
Central processing unit is used the AVR risc processor; Electric energy computation chip is with pulsed single-phase electric energy computation chip; Interface chip is used the RS485 interface chip, and high-current relay is with double-pole single-throw (D.P.S.T.) high-current relay or two single-phase magnetic latching relays, and outlet detects feedback loop and uses photoelectrical coupler; Be connected with protective circuit on the RS485 interface chip, in order to be burnt out on the protection RS485 interface chip.
Also be provided with the resistance-capacitance depressurization electric power loop in the housing, be connected in the L end and the N end of power input; Power input is connected with power supply indicator; Be connected with the closing by hand switch on the high-current relay.Be connected with on the central processing unit: be used for alarm buzzer, the test button that is used to playback, communication indicator light, electric leakage indicator light, overload light, combined floodgate indicator light.
Claims (10)
1. intelligent electronic leakage protector; Comprise housing; Be located at the high-current relay summation current transformer in the housing; Current transformer is connected to the input of high-current relay; It is characterized in that being provided with in the housing single-phase multiple rate electric energy computation chip; The outlet of passing through leakage current sampling circuit, the current sampling circuit that is used to gather electric current that A/D converter connects, the electric resistance partial pressure sampling circuit that is used to gather voltage, being used to drive the drive circuit of relay and be used for the relay output end current detecting that be connected with the interface chip that is used to communicate by letter on this single-phase multiple rate electric energy computation chip, is used to gather leakage current detects feedback loop, and single-phase multiple rate electric energy computation chip is handled and controlled the signal that detects feedback loop from interface chip, leakage current sampling circuit, current sampling circuit, electric resistance partial pressure sampling circuit, drive circuit and outlet; The leakage current sampling circuit is connected with current transformer, and current sampling circuit is connected with manganese copper diverter, and manganese copper diverter is connected with the N end of power input, and the electric resistance partial pressure sampling circuit is connected with the N end and the L end of power input.
2. intelligent electronic leakage protector according to claim 1; It is characterized in that the single-phase multiple rate electric energy computation chip of single-phase multiple rate electric energy computation chip for band 8052MCU; Transducer is 10 A/D converters; Interface chip is with RS485 interface chip or carrier communication chip, and high-current relay is used the double-pole single-throw (D.P.S.T.) high-current relay, and outlet detects feedback loop and uses photoelectrical coupler; Be connected with protective circuit on the RS485 interface chip, in order to be burnt out on the protection RS485 interface chip.
3. intelligent electronic leakage protector according to claim 1 is characterized in that also being connected with eeprom memory on the single-phase multiple rate electric energy computation chip, and the function of this memory is to be used to store data to take data at any time with power supply power meter reading terminal.
4. intelligent electronic leakage protector according to claim 1 is characterized in that also being provided with the resistance-capacitance depressurization electric power loop in the housing, is connected in the L end and the N end of power input; Be connected with the closing by hand switch on the high-current relay.
5. intelligent electronic leakage protector according to claim 1 is characterized in that power input is connected with power supply indicator.
6. intelligent electronic leakage protector according to claim 1 is characterized in that being connected with alarm buzzer on the single-phase multiple rate electric energy computation chip test button that is used to playback, communication indicator light, electric leakage indicator light, overload light, combined floodgate indicator light.
7. intelligent electronic leakage protector; Comprise housing; Be located at the high-current relay summation current transformer in the housing; Current transformer is connected to the input of high-current relay; It is characterized in that being provided with in the housing central processing unit; Be connected with electric energy computation chip, the interface chip that is used to communicate by letter of metering electric weight, the leakage current sampling circuit that is used to gather leakage current, the outlet that is used to drive the drive circuit of relay and be used for the relay output end current detecting on the central processing unit and detect feedback loop, central processing unit is used for the signal that detects feedback loop from electric energy computation chip, interface chip, leakage current sampling circuit, drive circuit and outlet is handled and controlled; The leakage current sampling circuit is connected with current transformer; Be connected with the current sampling circuit of gathering electric current and the electric resistance partial pressure sampling circuit of gathering voltage on the described electric energy computation chip; Current sampling circuit is connected with manganese copper diverter; Manganese copper diverter is connected with the N end of power input, and the electric resistance partial pressure sampling circuit is connected with the N end and the L end of power input.
8. intelligent electronic leakage protector according to claim 7; It is characterized in that central processing unit uses the AVR risc processor; Electric energy computation chip is with pulsed single-phase electric energy computation chip; Interface chip is used the RS485 interface chip, and high-current relay is with double-pole single-throw (D.P.S.T.) high-current relay or two single-phase magnetic latching relays, and outlet detects feedback loop and uses photoelectrical coupler; Be connected with protective circuit on the RS485 interface chip, in order to be burnt out on the protection RS485 interface chip.
9. intelligent electronic leakage protector according to claim 7 is characterized in that also being provided with the resistance-capacitance depressurization electric power loop in the housing, is connected in the L end and the N end of power input; Power input is connected with power supply indicator; Be connected with the closing by hand switch on the high-current relay.
10. intelligent electronic leakage protector according to claim 7 is characterized in that being connected with on the central processing unit buzzer that is used to report to the police, the test button that is used to playback, communication indicator light, electric leakage indicator light, overload light, combined floodgate indicator light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101570105A CN101741059B (en) | 2009-12-31 | 2009-12-31 | Intelligent electronic leakage protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101570105A CN101741059B (en) | 2009-12-31 | 2009-12-31 | Intelligent electronic leakage protector |
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| CN101741059A CN101741059A (en) | 2010-06-16 |
| CN101741059B true CN101741059B (en) | 2012-11-21 |
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| CN2009101570105A Active CN101741059B (en) | 2009-12-31 | 2009-12-31 | Intelligent electronic leakage protector |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102262175A (en) * | 2011-04-29 | 2011-11-30 | 嘉兴市永信电子有限公司 | Split creepage information acquisition device |
| CN103439878B (en) * | 2013-08-28 | 2016-04-13 | 淮北市平祥感应炉有限公司 | Anti-secondary closing control device |
| CN105322503A (en) * | 2014-07-22 | 2016-02-10 | 金华市奥凯电器有限公司 | Integrated leakage relay |
| CN104319194B (en) * | 2014-10-29 | 2016-10-12 | 天正集团有限公司 | A kind of ammeter earth leakage protective device |
| CN108493896A (en) * | 2018-04-24 | 2018-09-04 | 黎耀呀 | A kind of power protector |
| CN111273082A (en) * | 2019-12-25 | 2020-06-12 | 明日能源(苏州)有限公司 | Intelligent electric meter based on big data |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6373150B1 (en) * | 2000-03-14 | 2002-04-16 | Warren Electric Cooperative, Inc. | Electric service load limiter |
| CN2747588Y (en) * | 2004-05-27 | 2005-12-21 | 武汉盛帆电子有限公司 | Single phase electronic type electricity leakage detection intelligent electric power meter |
| CN2847304Y (en) * | 2005-08-24 | 2006-12-13 | 武汉盛帆电子有限公司 | Three phase electronic leakage and electricity stealing detecting electric energy meter |
| CN101051582A (en) * | 2006-04-03 | 2007-10-10 | 丁文军 | Intelligent comprehensive leakage relay |
| CN201781262U (en) * | 2009-12-31 | 2011-03-30 | 嘉兴市永信电子有限公司 | Intelligent electronic electric leakage protector |
-
2009
- 2009-12-31 CN CN2009101570105A patent/CN101741059B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6373150B1 (en) * | 2000-03-14 | 2002-04-16 | Warren Electric Cooperative, Inc. | Electric service load limiter |
| CN2747588Y (en) * | 2004-05-27 | 2005-12-21 | 武汉盛帆电子有限公司 | Single phase electronic type electricity leakage detection intelligent electric power meter |
| CN2847304Y (en) * | 2005-08-24 | 2006-12-13 | 武汉盛帆电子有限公司 | Three phase electronic leakage and electricity stealing detecting electric energy meter |
| CN101051582A (en) * | 2006-04-03 | 2007-10-10 | 丁文军 | Intelligent comprehensive leakage relay |
| CN201781262U (en) * | 2009-12-31 | 2011-03-30 | 嘉兴市永信电子有限公司 | Intelligent electronic electric leakage protector |
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| CN101741059A (en) | 2010-06-16 |
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Address after: 314201, Zhejiang, Jiaxing province Jiaxing harbor elegant mountain road Co-patentee after: Haiyan County Power Supply Bureau Patentee after: Zhejiang Yongxin Electrical Technology Co., Ltd. Address before: 314201, Zhejiang, Jiaxing province Jiaxing harbor elegant mountain road Co-patentee before: Haiyan County Power Supply Bureau Patentee before: Yongxin Electronic Co., Ltd., Jiaxing |
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