CN102565670A - On-line diagnosis device of relay protection device - Google Patents
On-line diagnosis device of relay protection device Download PDFInfo
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- CN102565670A CN102565670A CN2011104099135A CN201110409913A CN102565670A CN 102565670 A CN102565670 A CN 102565670A CN 2011104099135 A CN2011104099135 A CN 2011104099135A CN 201110409913 A CN201110409913 A CN 201110409913A CN 102565670 A CN102565670 A CN 102565670A
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Abstract
The invention relates to an on-line diagnosis device of a relay protection device and can effectively solve the problems of low efficiency and easiness in error making of the conventional circuit detection diagnosis device. The invention adopts the technical scheme that: the on-line diagnosis device of the relay protection device comprises a data acquisition card, wherein a plurality of circuit detectors which are independent of one another are connected to the data acquisition card; each circuit detector consists of a shell and a circuit board in the shell; a plurality of detection circuits which are independent of one another are fixed on the circuit board; the detection circuits are connected with the data acquisition card through conducting wires; the other end of the data acquisition card is connected with an industrial personal computer; and a data display device is connected to the industrial personal computer. The on-line diagnosis device of the relay protection device is unique in structure, convenient to use and high in detection efficiency and is an innovation of a circuit detection device.
Description
One, technical field
The present invention relates to circuit checker, particularly a kind of protective relaying device on-line diagnosing apparatus.
Two, background technology
The development of substation secondary loop experience has electromagnetic relay secondary circuit, automating power substation, digital transformer substation; The electromagnetic relay secondary circuit withdraws from use just gradually at present; Digital transformer substation be generally exemplary engineering; And be in conceptual phase, automating power substation is mainly used in electric system in the world.Fault diagnosis is the topological structure of maintainer according to the loop, and to carrying out potential measurement and whether artificial judgment each point current potential is qualified in each bar loop, the experience that combines again to safeguard is made comprehensive judgement, and detection efficiency is very low, and easy error.
Three, summary of the invention
To above-mentioned situation, for overcoming the defective of prior art, the present invention's purpose just provides a kind of protective relaying device on-line diagnosing apparatus, can effectively solve the low problem with easy error of existing electric circuit inspection diagnostic device efficient.
The technical scheme of its solution is; Comprise data collecting card, be connected with a plurality of separate circuit detectors on the data collecting card, circuit detector is made up of the circuit board in housing and the housing; Be fixed with a plurality of separate testing circuits on the circuit board; Testing circuit links to each other with data collecting card through lead, and the data collecting card other end links to each other with industrial computer, is connected with data presentation device on the industrial computer.
Structure of the present invention is unique, easy to use, and detection efficiency is high, is the innovation on the circuit checker.
Four, description of drawings
Fig. 1 is a functional-block diagram of the present invention.
Fig. 2 is a testing circuit structural drawing of the present invention.
Five, embodiment
Do further explain below in conjunction with the accompanying drawing specific embodiments of the invention.
Provide by Fig. 1, Fig. 2; The present invention includes data collecting card, be connected with a plurality of separate circuit detectors 2 on the data collecting card 1, circuit detector 2 is made up of the circuit board in housing and the housing; Be fixed with a plurality of separate testing circuits on the circuit board; Testing circuit links to each other with data collecting card 1 through lead, and data collecting card 1 other end links to each other with industrial computer 3, is connected with data presentation device 4 on the industrial computer 3.
In order to guarantee result of use, said testing circuit comprises switching value isolation sensing circuit and DC voltage sensing circuit, and said switching value is isolated sensing circuit 5 and comprised transformer 6; The input termination 220V AC power and the earth terminal GND1 of transformer 6; The output terminal connecting resistance R1 of transformer 6, resistance R 1 links to each other with earth terminal GND2, and an end of the diode (LED) in resistance R 1 and the optical coupling isolator 7 links to each other; Triode Q one termination in the optical coupling isolator 7 has resistance R 2; The other end is connected to resistance R 3, another termination 5V supply voltage and the output port V1 of resistance R 2, the other end earth terminal GND3 of resistance R 3 and output port V2; Said DC voltage sensing circuit 8 comprises current sensor 9; Current sensor 9 links to each other with the 12V power supply; Be connected to the capacitor C 1 and capacitor C 2 of series connection on the 12V power supply, capacitor C 1 links to each other with the GND end of current sensor 9 with capacitor C 2, is connected to resistance R 4 between the Vg end of current sensor 9 and the capacitor C 2; The both sides of resistance R 4 are by output port V3, V4; The HT+ port of current sensor 9 is connected in probe K 1 through resistance R 5 and transformer 6, and an end of the diode in the HT-port of current sensor and the optical coupling isolator 7 is connected in probe K 2, and output port V1, V2, V3, V4 link to each other with data collecting card 1.
The model of said data collecting card 1 is PCI-6251.
Said industrial computer 3 is for having the industrial computer of computing programing function, and the data that the program in it is gathered data capture card 1 are handled.
Said data presentation device 4 has the device of video data function for printer, display or other.
Switching value in the testing circuit of the present invention is isolated sensing circuit 5 and is connected in parallel with DC voltage sensing circuit 8; Constitute common probe K 1 and K2, during use, probe K 2 is placed the basic point of circuit under test; Mobile probe K1; Just can record the switching value of circuit between probe K 1 and the K2 and the parameter situation of voltage, can reach the switching value of while testing circuit and the purpose of voltage, a plurality of the present invention are fixed on the same circuit board; Can realize simultaneously the situation of a plurality of circuit junctions is detected; A plurality of circuit detectors 2 can detect entire circuit simultaneously, and the detection data that switching value is isolated sensing circuit 5 link to each other with data collecting card 1 through output port V3, V4 through the detection data of output port V1, V2 and DC voltage sensing circuit 8, and data collecting card 1 arrives the data delivery that collects in the industrial computer 3; Carry out data analysis through industrial computer 3, and the result that will analyze exports through equipment such as display or printers.
The present invention adopts the testing circuit of a plurality of parallel connections that entire circuit is detected simultaneously; Save human and material resources and time greatly, improved detection efficiency, shortened the time of treatment circuit fault; Having improved the safe reliability of circuit, is the innovation on the circuit checker.
Claims (2)
1. a protective relaying device on-line diagnosing apparatus comprises data collecting card, it is characterized in that; Be connected with a plurality of separate circuit detectors (2) on the data collecting card (1); Circuit detector (2) is made up of the circuit board in housing and the housing, is fixed with a plurality of separate testing circuits on the circuit board, and testing circuit links to each other with data collecting card (1) through lead; Data collecting card (1) other end links to each other with industrial computer (3), is connected with data presentation device (4) on the industrial computer (3).
2. protective relaying device on-line diagnosing apparatus according to claim 1; It is characterized in that said testing circuit comprises switching value isolation sensing circuit and DC voltage sensing circuit, said switching value is isolated sensing circuit (5) and is comprised transformer (6); The input termination 220V AC power and the earth terminal GND1 of transformer (6); The output terminal connecting resistance R1 of transformer 6, resistance R 1 links to each other with earth terminal GND2, and an end of the diode (LED) in resistance R 1 and the optical coupling isolator (7) links to each other; Triode Q one termination in the optical coupling isolator (7) has resistance R 2; The other end is connected to resistance R 3, another termination 5V supply voltage and the output port V1 of resistance R 2, the other end earth terminal GND3 of resistance R 3 and output port V2; Said DC voltage sensing circuit (8) comprises current sensor (9); Current sensor (9) links to each other with the 12V power supply; Be connected to the capacitor C 1 and capacitor C 2 of series connection on the 12V power supply, capacitor C 1 links to each other with the GND end of current sensor (9) with capacitor C 2, is connected to resistance R 4 between the Vg end of current sensor (9) and the capacitor C 2; The both sides of resistance R 4 are by output port V3, V4; The HT+ port of current sensor (9) is connected in probe K 1 through resistance R 5 and transformer (6), and an end of the diode in the HT-port of current sensor and the optical coupling isolator (7) is connected in probe K 2, and output port V1, V2, V3, V4 link to each other with data collecting card (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104099135A CN102565670A (en) | 2011-12-12 | 2011-12-12 | On-line diagnosis device of relay protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104099135A CN102565670A (en) | 2011-12-12 | 2011-12-12 | On-line diagnosis device of relay protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102565670A true CN102565670A (en) | 2012-07-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104099135A Pending CN102565670A (en) | 2011-12-12 | 2011-12-12 | On-line diagnosis device of relay protection device |
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| CN (1) | CN102565670A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103245835A (en) * | 2013-05-20 | 2013-08-14 | 国家电网公司 | Operating state data collection and intelligent analysis system for relay protection device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1529180A (en) * | 2003-10-10 | 2004-09-15 | 武汉大学 | High-volage transmitting-line multiple-path high-precision GPS single-end fault positioning method and apparatus |
| CN1553206A (en) * | 2003-12-18 | 2004-12-08 | 西安交通大学 | Electric power apparatus external insulative leakage current on-line monitoring system in converting station |
| CN102103157A (en) * | 2009-12-21 | 2011-06-22 | 艾默生网络能源系统北美公司 | Direct voltage isolated sampling device |
| CN202421438U (en) * | 2011-12-12 | 2012-09-05 | 河南省电力公司洛阳供电公司 | On-line diagnosis device of relay protective device |
-
2011
- 2011-12-12 CN CN2011104099135A patent/CN102565670A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1529180A (en) * | 2003-10-10 | 2004-09-15 | 武汉大学 | High-volage transmitting-line multiple-path high-precision GPS single-end fault positioning method and apparatus |
| CN1553206A (en) * | 2003-12-18 | 2004-12-08 | 西安交通大学 | Electric power apparatus external insulative leakage current on-line monitoring system in converting station |
| CN102103157A (en) * | 2009-12-21 | 2011-06-22 | 艾默生网络能源系统北美公司 | Direct voltage isolated sampling device |
| CN202421438U (en) * | 2011-12-12 | 2012-09-05 | 河南省电力公司洛阳供电公司 | On-line diagnosis device of relay protective device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103245835A (en) * | 2013-05-20 | 2013-08-14 | 国家电网公司 | Operating state data collection and intelligent analysis system for relay protection device |
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Application publication date: 20120711 |