CN203433047U - High-voltage open-phase detection device for transformer - Google Patents
High-voltage open-phase detection device for transformer Download PDFInfo
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- CN203433047U CN203433047U CN201320462779.XU CN201320462779U CN203433047U CN 203433047 U CN203433047 U CN 203433047U CN 201320462779 U CN201320462779 U CN 201320462779U CN 203433047 U CN203433047 U CN 203433047U
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 13
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- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
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Abstract
The utility model discloses a high-voltage open-phase detection device for a transformer, and belongs to the technical field of open-phase detection devices. The technical problem to be solved is to provide a device which is convenient for open-phase monitoring of the transformer. The technical scheme employed comprises that the high-voltage open-phase detection device comprises a central processor module, an open-phase detection module, an analog-digital conversion module, a display module, an alarm module, and a power module; the signal output end of the open-phase detection module is in series connection with the analog-digital conversion module and then connected with the signal input end of the central processor module; the central processor module is connected with the display module and the alarm module; the power module supplies power for the whole high-voltage open-phase detection device; and the high-voltage open-phase detection device is applicable to an electric power department.
Description
Technical field
A kind of transformer high-voltage phase shortage of the utility model pick-up unit, belongs 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 there is safeguard measure like this; 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; once phase shortage can cause great infringement to the consumer of its load; for electric drive system, potential safety hazard is very large.
Utility model content
The utility model overcomes the deficiency that prior art exists, and technical matters to be solved is: the device that a kind of convenient monitoring transformer phase failure is provided.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of transformer high-voltage phase shortage pick-up unit, comprising: CPU module, open phase detection module, analog-to-digital conversion module, display apparatus module, alarm modules and power module;
After the signal output part serial connection analog-to-digital conversion module of described open phase detection module, be connected with the signal input part of CPU module, described CPU module is connected with alarm modules with display apparatus module respectively, and described power module is whole phase shortage pick-up unit power supply.
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 be connected with one end of resistance R 1, 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 be connected with one end of resistance R 2, 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 be connected with one end of resistance R 3, 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 utility model compared with prior art has is: the utility model detects the phase place situation of transformer output three-phase supply in real time by open phase detection module, the very first time that can occur at open-phase fault, failure message is sent to CPU module, CPU module is controlled alarm modules and is sent a warning, and reminds staff; Whole device circuit is simple for structure, easy to use and reliable.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in more detail:
Fig. 1 is electrical block diagram of the present utility model;
Fig. 2 is the electrical block diagram of open phase detection module and analog-to-digital conversion module in the utility model;
In figure: 1 is that CPU module, 2 is that open phase detection module, 3 is that analog-to-digital conversion module, 4 is that display apparatus module, 5 is that alarm modules, 6 is that power module, 7 is that the first current rectifying and wave filtering circuit, 8 is that the second current rectifying and wave filtering circuit, 9 is that the 3rd current rectifying and wave filtering circuit, 10 is that the first analog to digital converter, 11 is that the second analog to digital converter, 12 is the 3rd analog to digital converter.
Embodiment
As shown in Figure 1, a kind of transformer high-voltage phase shortage of the utility model pick-up unit, comprising: CPU module 1, open phase detection module 2, analog-to-digital conversion module 3, display apparatus module 4, alarm modules 5 and power module 6; After the signal output part serial connection analog-to-digital conversion module 3 of described open phase detection module 2, be connected with the signal input part of CPU module 1, described CPU module 1 is connected with alarm modules 5 with display apparatus module 4 respectively, and described power module 6 is whole phase shortage pick-up unit power supply.
The signal input part of above-mentioned open phase detection module 2 is connected with transformer frequency response output terminal, the phase place situation of Real-Time Monitoring transformer output three-phase supply, when there is open-phase fault, open phase detection module 2 is sent to CPU module 1 by failure message, CPU module 1 is controlled alarm modules 5 and is sent a warning, and reminds staff.
As shown in Figure 2, the circuit structure of described open phase detection module 2 is: the input end a1 of the first current rectifying and wave filtering circuit 7 and meet the input end c2 of the 3rd current rectifying and wave filtering circuit 9 after be connected with one end of resistance R 1, the input end a2 of the first current rectifying and wave filtering circuit 7 and meet the input end b1 of the second current rectifying and wave filtering circuit 8 after be connected with one end of resistance R 2, the input end b2 of the second current rectifying and wave filtering circuit 8 and meet the input end c1 of the 3rd current rectifying and wave filtering circuit 9 after be connected with one end of resistance R 3, 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, described signal input part u1, v1, w1 is connected with the three-phase power output end of transformer respectively.
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 7 is connected with the negative pole of output end of the first current rectifying and wave filtering circuit 7 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 8 is connected with the negative pole of output end of the second current rectifying and wave filtering circuit 8 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 9 is connected with the negative pole of output end of the 3rd current rectifying and wave filtering circuit 9 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 3 includes the first analog to digital converter 10, the second analog to digital converter 11 and the 3rd analog to digital converter 12, 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 10, 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 11, 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 12, the output terminal of described the first analog to digital converter 10, the output terminal of the output terminal of the second analog to digital converter 11 and the 3rd analog to digital converter 12 is connected with the signal output port of CPU module 1 respectively.
When the three-phase supply of transformer is during without phase shortage situation, above-mentioned the first current rectifying and wave filtering circuit 7, the second current rectifying and wave filtering circuit 8 and the 3rd current rectifying and wave filtering circuit 9 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 10, the second analog to digital converter 11 and the 3rd analog to digital converter 12 all send a signal to CPU module 1; When the open phases of three-phase power source of transformer, above-mentioned the first current rectifying and wave filtering circuit 7, the second current rectifying and wave filtering circuit 8 and the 3rd current rectifying and wave filtering circuit 9 have at least one without direct supply, to export, in above-mentioned relay, there is the coil of by dead electricity, normally opened contact disconnects, in above-mentioned analog to digital converter, no signal is sent to CPU module 1, and CPU module 1 is sent alerting signal by the above-mentioned alarm modules 5 of control.
By reference to the accompanying drawings embodiment of the present utility model is explained in detail above, but the utility model is not limited to above-described embodiment, in the ken possessing those of ordinary skills, can also under the prerequisite that does not depart from the utility model aim, make various variations.
Claims (3)
1. a transformer high-voltage phase shortage pick-up unit, comprising: CPU module (1), open phase detection module (2), analog-to-digital conversion module (3), display apparatus module (4), alarm modules (5) and power module (6);
It is characterized in that: after the signal output part serial connection analog-to-digital conversion module (3) of described open phase detection module (2), be connected with the signal input part of CPU module (1), described CPU module (1) is connected with alarm modules (5) with display apparatus module (4) respectively, and described power module (6) is whole phase shortage pick-up unit power supply.
2. a kind of transformer high-voltage phase shortage pick-up unit according to claim 1, is characterized in that: the circuit structure of described open phase detection module (2) is:
The input end a1 of the first current rectifying and wave filtering circuit (7) and meet the input end c2 of the 3rd current rectifying and wave filtering circuit (9) after be connected with one end of resistance R 1, the input end a2 of the first current rectifying and wave filtering circuit (7) and meet the input end b1 of the second current rectifying and wave filtering circuit (8) after be connected with one end of resistance R 2, the input end b2 of the second current rectifying and wave filtering circuit (8) and meet the input end c1 of the 3rd current rectifying and wave filtering circuit (9) after be connected with one end of resistance R 3, 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 (7) is connected with the negative pole of output end of the first current rectifying and wave filtering circuit (7) 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 (8) is connected with the negative pole of output end of the second current rectifying and wave filtering circuit (8) 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 (9) is connected with the negative pole of output end of the 3rd current rectifying and wave filtering circuit (9) 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. a kind of transformer high-voltage phase shortage pick-up unit according to claim 2, it is characterized in that: described analog-to-digital conversion module (3) includes the first analog to digital converter (10), the second analog to digital converter (11) and the 3rd analog to digital converter (12), 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 (10), 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 (11), 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 (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320462779.XU CN203433047U (en) | 2013-07-31 | 2013-07-31 | High-voltage open-phase detection device for transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320462779.XU CN203433047U (en) | 2013-07-31 | 2013-07-31 | High-voltage open-phase detection device for transformer |
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| Publication Number | Publication Date |
|---|---|
| CN203433047U true CN203433047U (en) | 2014-02-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320462779.XU Expired - Fee Related CN203433047U (en) | 2013-07-31 | 2013-07-31 | High-voltage open-phase detection device for transformer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103364647A (en) * | 2013-07-31 | 2013-10-23 | 襄垣县树元电器有限公司 | Device for detecting high voltage default phase of transformer |
-
2013
- 2013-07-31 CN CN201320462779.XU patent/CN203433047U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103364647A (en) * | 2013-07-31 | 2013-10-23 | 襄垣县树元电器有限公司 | Device for detecting high voltage default phase of transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHUOZHOU POWER SUPPLY COMPANY, STATE GRID SHANXI E Effective date: 20141118 Owner name: STATE GRID CORPORATION OF CHINA Free format text: FORMER OWNER: XIANGYUAN SHUYUAN ELECTRIC APPLIANCE CO., LTD. Effective date: 20141118 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 046299 CHANGZHI, SHAANXI PROVINCE TO: 100031 XICHENG, BEIJING |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20141118 Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Patentee after: State Grid Corporation of China Patentee after: SHUOZHOU POWER SUPPLY COMPANY, STATE GRID SHANXI ELECTRIC POWER CO., LTD. Address before: 046299 Shanxi city of Changzhi Province Wang Xiangyuan County town of Wuyang Village Patentee before: Xiangyuan Shuyuan Electrical Appliance Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140212 Termination date: 20180731 |
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| CF01 | Termination of patent right due to non-payment of annual fee |