CN214173491U - Mutual inductor monitoring device adopting solar power supply - Google Patents
Mutual inductor monitoring device adopting solar power supply Download PDFInfo
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- CN214173491U CN214173491U CN202120312320.6U CN202120312320U CN214173491U CN 214173491 U CN214173491 U CN 214173491U CN 202120312320 U CN202120312320 U CN 202120312320U CN 214173491 U CN214173491 U CN 214173491U
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Abstract
The utility model relates to a mutual inductor monitoring device powered by solar energy, which realizes the real-time monitoring of fault gas of a mutual inductor by arranging a gas detection unit consisting of a gas sensor and a signal processing circuit; the oil level detection unit formed by the infrared distance measurement sensor is arranged, so that the oil level monitoring of the mutual inductor is realized; the solar power supply unit formed by the solar receiving panel and the storage battery pack is arranged, so that power supply of the sensor circuit and the wireless communication unit is realized. The system adopts a wireless communication mode, and solves the problem that the signal transmission of the high-voltage side monitoring device of the mutual inductor is difficult.
Description
Technical Field
The utility model relates to an adopt mutual-inductor monitoring devices of solar energy power supply belongs to power equipment fault monitoring field.
Background
The mutual inductor is important equipment of a power grid, when the oil temperature of the oil insulation type mutual inductor changes, a volume compensation container is needed, and the metal corrugated expander is used for volume compensation of insulation oil of the oil insulation type mutual inductor. Because the ripple expander is arranged on the upper part of the mutual inductor, the oil level observation is greatly influenced by distance and window dirt. The oil level is often low, and negative pressure occurs in the expander, so that the mutual inductor absorbs moisture and air. In recent years, accidents caused by moisture absorption and air suction generated by negative pressure of a plurality of mutual inductors appear in a power grid. Meanwhile, the expander is arranged at the upper part of the mutual inductor, and the oil level of the expander is not provided with transmission conditions under the influence of high voltage, so that the fact that the expansion oil level is abnormal in time is very important for preventing accidents of the mutual inductor. In particular, when a fault occurs inside the transformer, a certain amount of combustible gas (gas) is usually generated, and the gas is found and gas components are diagnosed in time, so that the method has important significance for avoiding a malignant accident.
Disclosure of Invention
The to-be-solved technical problem of the utility model is to provide an adopt mutual-inductor monitoring devices of solar energy power supply, this monitoring devices can realize utilizing the gas that solar energy power supply monitoring ripple expander oil level and monitoring mutual-inductor trouble produced to realize wireless communication transmission data.
For solving the above problems, the specific technical scheme of the utility model is as follows: a mutual inductor monitoring device adopting solar power supply comprises a corrugated expander, a gas detection unit, a wireless communication unit and a power supply unit, wherein the gas detection unit for detecting combustible gas components of insulating oil in the corrugated expander is arranged on an upper cover or a sealing plug of the corrugated expander and consists of a gas sensor and a signal processing circuit, and an oil-gas isolation assembly and/or a detection gas cavity are/is arranged between the gas sensor and the insulating oil; the gas detection unit is connected with the wireless communication unit through a lead, and the power supply unit supplies power to the gas detection unit and the wireless communication unit through leads.
The power supply unit comprises a solar receiving panel, a storage battery and a control circuit, the power supply unit is fixed on the outer cover, and the power supply unit is connected with the gas detection unit and the wireless communication unit through leads to supply power for the gas detection unit and the wireless communication unit.
The oil level detection unit is connected with the power supply unit and the wireless communication unit and transmits an oil level signal of the corrugated expansion device through wireless communication.
The ripple expander is provided with a limit position switch and is connected with the wireless communication unit, and the switch signal is transmitted through wireless communication.
Wherein, set up gas detecting element on the upper cover or on the sealing plug, gas detecting element comprises sensor and circuit, set up oil gas isolation assembly or (and) detect the air cavity between sensor and insulating oil, can realize the insulating oil decomposition gas that the monitoring mutual-inductor trouble produced, discover and diagnose the trouble in time.
The solar energy receiving unit is connected to the outer cover of the metal corrugated expander for the mutual inductor, and the solar energy receiving unit is connected with the gas detection unit and the wireless communication unit through leads, so that power supply of the gas detection unit and the wireless communication unit can be realized.
The oil level detection unit for detecting the position of the upper cover is arranged on the outer cover of the metal corrugated expander and is connected with the solar unit and the wireless communication unit, and an oil level signal of the metal corrugated expander is transmitted through wireless communication, so that the real-time monitoring of the oil level of the corrugated expander can be realized.
The metal corrugated expander is provided with the limit position switch and connected with the wireless communication unit, and the switch signal is transmitted through wireless communication, so that low oil level and high oil level alarm can be realized.
Drawings
Fig. 1 is a schematic structural view of a metal bellows expander provided with a monitoring unit.
Fig. 2 is a schematic structural view of a gas detection unit.
Wherein: 1-an upper cover, 2-a corrugation, 4-a sealing plug, 5-a gas sensor, 6-an oil level detection unit, 7-a signal processing circuit, 8-a wireless communication unit, 9-a solar receiving board, 10-a storage battery and control circuit, 11-an outer cover, 12-an electrical box, 13-an oil-gas isolation assembly, 14-a detection air cavity, 15-a limit position switch, 16-an upper coupling magnetic block and 17-a lower coupling magnetic block.
Detailed Description
As shown in fig. 1, a mutual inductor monitoring device powered by solar energy includes a ripple expander, a gas detection unit, a wireless communication unit and a power supply unit. A gas sensor 5 is arranged on the upper cover 1 of the corrugated expander or the opening of the sealing plug 4, and the gas sensor 5 and the signal processing circuit 7 form a gas detection unit. As shown in fig. 2, an oil-gas separation member 13 and/or a detection gas chamber 14 is provided between the gas sensor 5 and the insulating oil in the bellows expander, the oil-gas separation member 13 being made of a fluororesin material. An electrical box 12 made of stainless steel materials is arranged on the housing 11 of the corrugated expander, the upper part of the electrical box 12 is connected with a solar receiving plate 9, and the solar receiving plate 9 and a storage battery and a control circuit 10 form a power supply unit. The power supply unit is connected with the signal processing circuit 7 of the gas detection unit and the wireless communication unit 8 through leads to supply power to the gas detection unit. The oil level detection unit 6 for detecting the position of the upper cover 1 of the metal corrugated expansion device is further arranged on the electrical box 12, the oil level detection unit 6 adopts an infrared distance measurement sensor or other distance measurement sensors, the oil level detection unit 6 is connected with a solar unit and a wireless communication unit through a lead, the infrared distance measurement sensor of the oil level detection unit 6 passes through a hole in the upper portion of the outer cover 11, the position (namely the oil level) of the upper cover 1 when the corrugated expansion device 2 stretches is detected, and an oil level signal of the metal corrugated expansion device is transmitted through wireless communication. The metal corrugated expander outer cover 11 is further provided with a limit position switch 15, the limit position switch 15 is arranged on the upper cover 1 of the corrugated expander and outputs an alarm signal by adopting a magnetic coupling proximity switch, the upper coupling magnetic block 16 and the lower coupling magnetic block 17 are arranged at two ends of the effective stroke of the inner wall of the corrugated expander outer cover 11, and the limit position switch 15 is connected with a wireless communication unit through a lead and transmits a switch signal through wireless communication. The wireless communication unit can adopt a short-distance (1-2 kilometers) wireless transmitting module to form a detection signal, and the detection signal is transmitted from the high-voltage end on the upper part of the mutual inductor to the ground receiving module and then enters the monitoring terminal; the wireless communication unit can also adopt a mobile communication module to directly transmit the acquired data to a network for monitoring through mobile communication.
Claims (4)
1. The utility model provides an adopt mutual-inductor monitoring devices of solar energy power supply which characterized in that: the device comprises a corrugated expander, a gas detection unit, a wireless communication unit and a power supply unit, wherein the gas detection unit for detecting the combustible gas components of insulating oil in the corrugated expander is arranged on an upper cover or a sealing plug of the corrugated expander and consists of a gas sensor and a signal processing circuit, and an oil-gas isolation assembly and/or a detection gas cavity are/is arranged between the gas sensor and the insulating oil; the gas detection unit is connected with the wireless communication unit through a lead, and the power supply unit supplies power to the gas detection unit and the wireless communication unit through leads.
2. The solar powered transformer monitoring device of claim 1, wherein: the power supply unit comprises a solar receiving panel, a storage battery and a control circuit, the power supply unit is fixed on the outer cover, and the power supply unit is connected with the gas detection unit and the wireless communication unit through leads to supply power for the gas detection unit and the wireless communication unit.
3. The solar powered transformer monitoring device of claim 2, wherein: the oil level detection unit is connected with the power supply unit and the wireless communication unit and transmits an oil level signal of the corrugated expansion device through wireless communication.
4. The solar powered transformer monitoring device of claim 1, wherein: the ripple expander is provided with a limit position switch and is connected with the wireless communication unit, and the switch signal is transmitted through wireless communication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120312320.6U CN214173491U (en) | 2021-02-04 | 2021-02-04 | Mutual inductor monitoring device adopting solar power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120312320.6U CN214173491U (en) | 2021-02-04 | 2021-02-04 | Mutual inductor monitoring device adopting solar power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214173491U true CN214173491U (en) | 2021-09-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120312320.6U Active CN214173491U (en) | 2021-02-04 | 2021-02-04 | Mutual inductor monitoring device adopting solar power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214173491U (en) |
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2021
- 2021-02-04 CN CN202120312320.6U patent/CN214173491U/en active Active
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