CN103399216A - Remote monitoring and alarming device for high-voltage phase lack of transformer - Google Patents
Remote monitoring and alarming device for high-voltage phase lack of transformer Download PDFInfo
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- CN103399216A CN103399216A CN2013103279498A CN201310327949A CN103399216A CN 103399216 A CN103399216 A CN 103399216A CN 2013103279498 A CN2013103279498 A CN 2013103279498A CN 201310327949 A CN201310327949 A CN 201310327949A CN 103399216 A CN103399216 A CN 103399216A
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Abstract
The invention relates to a remote monitoring and alarming device for high-voltage phase lack of a transformer, belonging to the technical field of a phase lack detection device. The technical problem needing to be solved is to provide a device for conveniently remotely monitoring the phase lack of the transformer. The adopted technical scheme is as follows: the remote monitoring and alarming device comprises the phase lack detection device arranged on the transformer and a background processor arranged in an electric power monitoring room; the phase lack detection device comprises a central processing unit module, a phase lack detection module, an analog-to-digital conversion module, a displayer module, an alarming module, a wireless communication module and a power supply module, wherein the signal output end of the phase lack detection module is connected with the analog-to-digital conversion module in series and then is connected with the signal input end of the central processing unit module, and the central processing unit module is respectively connected with the displayer module, the alarming module and the wireless communication module; the background processor comprises a wireless receiving module, a processor computer, a displayer and a background alarm; the wireless communication module is connected with the wireless receiving module through a wireless network. The remote monitoring and alarming device is suitable for electric power departments.
Description
Technical field
Transformer high-voltage phase shortage remote monitoring alarm device of the present invention, belong to phase shortage pick-up unit technical field, is specifically related to a kind of device that detects transformer phase failure.
Background technology
At present; various protective devices to low voltage distribution transformer (abbreviation transformer) have various primary cut-outs, lightning arrester etc. in high-pressure side; low-pressure side has various fuses, A.C. contactor, phase demodulation amplitude discrimination relay etc.; although safeguard measure like this is arranged; but due to the various complex circuit of transformer capacity grade; it is perfectly safe that the various safeguard measures supporting with it are difficult to accomplish; especially the open-phase fault of transformer; in case phase shortage can cause to the consumer of its load great infringement; for electric drive system, potential safety hazard is very large.
Summary of the invention
The present invention overcomes the deficiency that prior art exists, and technical matters to be solved is: a kind of device that facilitates the remote monitoring transformer phase failure is provided.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is: transformer high-voltage phase shortage remote monitoring alarm device comprises the phase shortage pick-up unit that is arranged on transformer and the background processor that is arranged on the power monitoring chamber;
Described phase shortage pick-up unit includes: CPU module, open phase detection module, analog-to-digital conversion module, display apparatus module, alarm modules, wireless communication module and power module; After the signal output part serial connection analog-to-digital conversion module of described open phase detection module, with the signal input part of CPU module, be connected, described CPU module is connected with display apparatus module, alarm modules and wireless communication module respectively, and described power module is whole phase shortage pick-up unit power supply;
Described background processor includes wireless receiving module, processor computer, display and backstage warning horn; Described wireless receiving module, display and backstage warning horn are connected with the processor computer respectively; Above-mentioned wireless communication module is connected with wireless receiving module by wireless network.
the circuit structure of described open phase detection module is: the input end a1 of the first current rectifying and wave filtering circuit and meet the input end c2 of the 3rd current rectifying and wave filtering circuit after with an end of resistance R 1, be connected, the input end a2 of the first current rectifying and wave filtering circuit and meet the input end b1 of the second current rectifying and wave filtering circuit after with an end of resistance R 2, be connected, the input end b2 of the second current rectifying and wave filtering circuit and meet the input end c1 of the 3rd current rectifying and wave filtering circuit after with an end of resistance R 3, be connected, the other end of described resistance R 1, the other end of the other end of resistance R 2 and resistance R 3 is respectively the signal input part u1 of open phase detection module, v1, w1,
The coil of relay K 1 is K1.1, and its normally opened contact is K1.2; The coil of relay K 2 is K2.1, and its normally opened contact is K2.2; The coil of relay K 3 is K3.1, and its normally opened contact is K3.2;
The output head anode of described the first current rectifying and wave filtering circuit is connected with the negative pole of output end of the first current rectifying and wave filtering circuit after the coil K1.1 of series resistor R4 and relay K 1 successively, the output head anode of described the second current rectifying and wave filtering circuit is connected with the negative pole of output end of the second current rectifying and wave filtering circuit after the coil K2.1 of series resistor R5 and relay K 2 successively, and the output head anode of described the 3rd current rectifying and wave filtering circuit is connected with the negative pole of output end of the 3rd current rectifying and wave filtering circuit after the coil K3.1 of series resistor R6 and relay K 3 successively;
The two ends of the two ends of the two ends of the normally opened contact K1.2 of described relay K 1, the normally opened contact K2.2 of relay K 2 and the normally opened contact K3.2 of relay K 3 are respectively the signal output part of open phase detection module.
Described analog-to-digital conversion module includes the first analog to digital converter, the second analog to digital converter and the 3rd analog to digital converter, the two ends of the normally opened contact K1.2 of above-mentioned relay K 1 are connected with the input end of the first analog to digital converter, the two ends of the normally opened contact K2.2 of above-mentioned relay K 2 are connected with the input end of the second analog to digital converter, and the two ends of the normally opened contact K3.2 of above-mentioned relay K 3 are connected with the input end of the 3rd analog to digital converter.
The beneficial effect that the present invention compared with prior art has is: the present invention detects the phase place situation of transformer output three-phase supply in real time by open phase detection module, can be in the very first time that open-phase fault occurs, failure message is sent to CPU module, and timely phase shortage information is sent to the background monitoring center, can make the background monitoring center constantly monitor the phase shortage situation of each local transformer, reach the remote monitoring to phase shortage information; Improve the safety coefficient of transformer; The whole device circuit of the present invention is simple for structure, and is practical.
The accompanying drawing explanation
The present invention will be further described in detail below in conjunction with accompanying drawing:
Fig. 1 is electrical block diagram of the present invention;
Fig. 2 is the electrical block diagram of open phase detection module and analog-to-digital conversion module in the present invention;
in figure: 1 is the phase shortage pick-up unit, 2 is background processor, 3 is CPU module, 4 is open phase detection module, 5 is analog-to-digital conversion module, 6 is display apparatus module, 7 is alarm modules, 8 is wireless communication module, 9 is power module, 10 is wireless receiving module, 11 is the processor computer, 12 is display, 13 is the backstage warning horn, 14 is the first current rectifying and wave filtering circuit, 15 is the second current rectifying and wave filtering circuit, 16 is the 3rd current rectifying and wave filtering circuit, 17 is the first analog to digital converter, 18 is the second analog to digital converter, 19 is the 3rd analog to digital converter.
Embodiment
As shown in Figure 1, transformer high-voltage phase shortage remote monitoring alarm device of the present invention, comprise the phase shortage pick-up unit 1 that is arranged on transformer and the background processor 2 that is arranged on the power monitoring chamber.
Described phase shortage pick-up unit 1 includes: CPU module 3, open phase detection module 4, analog-to-digital conversion module 5, display apparatus module 6, alarm modules 7, wireless communication module 8 and power module 9; After the signal output part serial connection analog-to-digital conversion module 5 of described open phase detection module 4, with the signal input part of CPU module 3, be connected, described CPU module 3 is connected with display apparatus module 6, alarm modules 7 and wireless communication module 8 respectively, and described power module 9 is whole phase shortage pick-up unit 1 power supply.
Described background processor 2 includes wireless receiving module 10, processor computer 11, display 12 and backstage warning horn 13; Described wireless receiving module 10, display 12 and backstage warning horn 13 are connected with processor computer 11 respectively; Above-mentioned wireless communication module 8 is connected with wireless receiving module 10 by wireless network, described wireless network can adopt the ZigBee wireless network, wireless communication module 8 and wireless receiving module 10 all adopt the ZigBee communication module, can either meet transmission range, also can reach the effect of low-power consumption.
The signal input part of above-mentioned open phase detection module 4 is connected with the transformer frequency response output terminal, the phase place situation of Real-Time Monitoring transformer output three-phase supply, when open-phase fault occurs when, open phase detection module 4 is sent to CPU module 3 by failure message, CPU module 3 is controlled alarm modules 7 and is sent a warning, remind the field personnel, described CPU module 3 can be sent to background processor 2 by field data in real time by wireless network, realizes the purpose of remote monitoring transformer phase failure.
the circuit structure of described open phase detection module 4 is: the input end a1 of the first current rectifying and wave filtering circuit 14 and meet the input end c2 of the 3rd current rectifying and wave filtering circuit 16 after with an end of resistance R 1, be connected, the input end a2 of the first current rectifying and wave filtering circuit 14 and meet the input end b1 of the second current rectifying and wave filtering circuit 15 after with an end of resistance R 2, be connected, the input end b2 of the second current rectifying and wave filtering circuit 15 and meet the input end c1 of the 3rd current rectifying and wave filtering circuit 16 after with an end of resistance R 3, be connected, the other end of described resistance R 1, the other end of the other end of resistance R 2 and resistance R 3 is respectively the signal input part u1 of open phase detection module 2, v1, w1.
The coil of relay K 1 is K1.1, and its normally opened contact is K1.2; The coil of relay K 2 is K2.1, and its normally opened contact is K2.2; The coil of relay K 3 is K3.1, and its normally opened contact is K3.2.
The output head anode of described the first current rectifying and wave filtering circuit 14 is connected with the negative pole of output end of the first current rectifying and wave filtering circuit 14 after the coil K1.1 of series resistor R4 and relay K 1 successively, the output head anode of described the second current rectifying and wave filtering circuit 15 is connected with the negative pole of output end of the second current rectifying and wave filtering circuit 15 after the coil K2.1 of series resistor R5 and relay K 2 successively, and the output head anode of described the 3rd current rectifying and wave filtering circuit 16 is connected with the negative pole of output end of the 3rd current rectifying and wave filtering circuit 16 after the coil K3.1 of series resistor R6 and relay K 3 successively; The two ends of the two ends of the two ends of the normally opened contact K1.2 of described relay K 1, the normally opened contact K2.2 of relay K 2 and the normally opened contact K3.2 of relay K 3 are respectively the signal output part of open phase detection module 2.
Described analog-to-digital conversion module 5 includes the first analog to digital converter 17, the second analog to digital converter 18 and the 3rd analog to digital converter 19, the two ends of the normally opened contact K1.2 of above-mentioned relay K 1 are connected with the input end of the first analog to digital converter 17, the two ends of the normally opened contact K2.2 of above-mentioned relay K 2 are connected with the input end of the second analog to digital converter 18, and the two ends of the normally opened contact K3.2 of above-mentioned relay K 3 are connected with the input end of the 3rd analog to digital converter 19.The output terminal of the output terminal of the output terminal of described the first analog to digital converter 17, the second analog to digital converter 18 and the 3rd analog to digital converter 19 is connected with the signal output port of CPU module 3 respectively.
When the three-phase supply of transformer during without the phase shortage situation, above-mentioned the first current rectifying and wave filtering circuit 14, the second current rectifying and wave filtering circuit 15 and the 3rd current rectifying and wave filtering circuit 16 all have direct supply output, the coil K3.1 of the coil K1.1 of above-mentioned relay K 1, the coil K2.1 of relay K 2 and relay K 3 all electric, the normally opened contact K3.2 of the normally opened contact K1.2 of above-mentioned relay K 1, the normally opened contact K2.2 of relay K 2 and relay K 3 is all closed, and above-mentioned the first analog to digital converter 17, the second analog to digital converter 18 and the 3rd analog to digital converter 19 all send a signal to CPU module 3; When the open phases of three-phase power source of transformer, above-mentioned the first current rectifying and wave filtering circuit 14, the second current rectifying and wave filtering circuit 15 and the 3rd current rectifying and wave filtering circuit 16 have at least one without direct supply, to export, in above-mentioned relay, the coil of one is arranged by dead electricity, normally opened contact disconnects, in above-mentioned analog to digital converter, no signal is sent to CPU module 3, CPU module 3 is sent to background processor 2 by above-mentioned information, remind the background work personnel, meet the phase shortage situation that each local transformer is monitored at the background monitoring center constantly.
The above is explained in detail embodiments of the invention by reference to the accompanying drawings, but the present invention is not limited to above-described embodiment, in the ken that those of ordinary skills possess, can also under the prerequisite that does not break away from aim of the present invention, make various variations.
Claims (3)
1. transformer high-voltage phase shortage remote monitoring alarm device, is characterized in that: comprise the phase shortage pick-up unit (1) that is arranged on transformer and the background processor (2) that is arranged on the power monitoring chamber;
Described phase shortage pick-up unit (1) includes: CPU module (3), open phase detection module (4), analog-to-digital conversion module (5), display apparatus module (6), alarm modules (7), wireless communication module (8) and power module (9); After the signal output part serial connection analog-to-digital conversion module (5) of described open phase detection module (4), with the signal input part of CPU module (3), be connected, described CPU module (3) is connected with display apparatus module (6), alarm modules (7) and wireless communication module (8) respectively, and described power module (9) is whole phase shortage pick-up unit (1) power supply;
Described background processor (2) includes wireless receiving module (10), processor computer (11), display (12) and backstage warning horn (13); Described wireless receiving module (10), display (12) and backstage warning horn (13) are connected with processor computer (11) respectively; Above-mentioned wireless communication module (8) is connected with wireless receiving module (10) by wireless network.
2. transformer high-voltage phase shortage remote monitoring alarm device according to claim 1, it is characterized in that: the circuit structure of described open phase detection module (4) is:
the input end a1 of the first current rectifying and wave filtering circuit (14) and meet the input end c2 of the 3rd current rectifying and wave filtering circuit (16) after with an end of resistance R 1, be connected, the input end a2 of the first current rectifying and wave filtering circuit (14) and meet the input end b1 of the second current rectifying and wave filtering circuit (15) after with an end of resistance R 2, be connected, the input end b2 of the second current rectifying and wave filtering circuit (15) and meet the input end c1 of the 3rd current rectifying and wave filtering circuit (16) after with an end of resistance R 3, be connected, the other end of described resistance R 1, the other end of the other end of resistance R 2 and resistance R 3 is respectively the signal input part u1 of open phase detection module (2), v1, w1,
The coil of relay K 1 is K1.1, and its normally opened contact is K1.2; The coil of relay K 2 is K2.1, and its normally opened contact is K2.2; The coil of relay K 3 is K3.1, and its normally opened contact is K3.2;
The output head anode of described the first current rectifying and wave filtering circuit (14) is connected with the negative pole of output end of the first current rectifying and wave filtering circuit (14) after the coil K1.1 of series resistor R4 and relay K 1 successively, the output head anode of described the second current rectifying and wave filtering circuit (15) is connected with the negative pole of output end of the second current rectifying and wave filtering circuit (15) after the coil K2.1 of series resistor R5 and relay K 2 successively, and the output head anode of described the 3rd current rectifying and wave filtering circuit (16) is connected with the negative pole of output end of the 3rd current rectifying and wave filtering circuit (16) after the coil K3.1 of series resistor R6 and relay K 3 successively;
The two ends of the two ends of the two ends of the normally opened contact K1.2 of described relay K 1, the normally opened contact K2.2 of relay K 2 and the normally opened contact K3.2 of relay K 3 are respectively the signal output part of open phase detection module (2).
3. transformer high-voltage phase shortage remote monitoring alarm device according to claim 2, it is characterized in that: described analog-to-digital conversion module (5) includes the first analog to digital converter (17), the second analog to digital converter (18) and the 3rd analog to digital converter (19), the two ends of the normally opened contact K1.2 of above-mentioned relay K 1 are connected with the input end of the first analog to digital converter (17), the two ends of the normally opened contact K2.2 of above-mentioned relay K 2 are connected with the input end of the second analog to digital converter (18), the two ends of the normally opened contact K3.2 of above-mentioned relay K 3 are connected with the input end of the 3rd analog to digital converter (19).
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013103279498A CN103399216A (en) | 2013-07-31 | 2013-07-31 | Remote monitoring and alarming device for high-voltage phase lack of transformer |
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| CN2013103279498A CN103399216A (en) | 2013-07-31 | 2013-07-31 | Remote monitoring and alarming device for high-voltage phase lack of transformer |
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| CN2013103279498A Pending CN103399216A (en) | 2013-07-31 | 2013-07-31 | Remote monitoring and alarming device for high-voltage phase lack of transformer |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110221132A (en) * | 2019-06-18 | 2019-09-10 | 国网冀北电力有限公司廊坊供电公司 | The method and nuclear phase instrument new application of electrification investigation high-tension apparatus phase shortage |
| CN113514669A (en) * | 2021-03-29 | 2021-10-19 | 杭州西湖电子研究所 | Wiring method for equipment detection of traction substation |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113514669B (en) * | 2021-03-29 | 2024-03-12 | 杭州西湖电子研究所 | Wiring method for traction substation equipment detection |
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Application publication date: 20131120 |