CN211147803U - Oil monitoring acousto-optic alarm device for transformer - Google Patents
Oil monitoring acousto-optic alarm device for transformer Download PDFInfo
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- CN211147803U CN211147803U CN201922114850.5U CN201922114850U CN211147803U CN 211147803 U CN211147803 U CN 211147803U CN 201922114850 U CN201922114850 U CN 201922114850U CN 211147803 U CN211147803 U CN 211147803U
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Abstract
The utility model relates to the technical field of power equipment, specifically disclose a transformer oil monitoring audible-visual alarm device, the transformer includes the oil tank, oil monitoring audible-visual alarm device includes photoelectric switch, photoelectric switch is including being fixed in first L ED lamp in the oil tank and being used for receiving the photoelectric coupler of the light-emitting line of first L ED lamp, when first L ED lamp is by transformer oil submergence, photoelectric coupler disconnection, when first L ED lamp is not by transformer oil submergence, photoelectric coupler switches on, second L ED lamp, second L ED lamp is located the outside of transformer, bee calling organ is located the outside of transformer, controlling means respectively with photoelectric coupler, second L ED lamp and bee calling organ electricity are connected.
Description
Technical Field
The utility model relates to a power equipment technical field especially relates to a transformer is with oily monitoring audible-visual alarm device.
Background
The oil-immersed transformer is one of important devices in power supply and distribution systems of industrial and mining enterprises and civil buildings, and reduces the 10(6) kV or 35kV network voltage to 230/400V bus voltage used by users. The transformer oil mainly plays a cooling role in the oil-immersed transformer, in order to guarantee normal operation of the oil-immersed transformer, operation and maintenance personnel often need to observe the oil level, and once the oil level is too low, it indicates that faults such as oil leakage, insufficient oil, temperature rise of the transformer oil or oil injection may exist, and the oil-immersed transformer may be stopped or burnt.
The oil level of the oil-immersed transformer is patrolled, and the oil level gauge is observed in the conventional method. In actual work, the oil-immersed transformer is generally installed on a rack, the distance between the rack and the ground is at least 2.5 meters, and operation and maintenance personnel can hardly observe the height of an oil level in the oil level indicator on the ground, and often can clearly observe the oil level indicator by climbing onto the rack by means of an insulating ladder. And the safe distance between the operation and maintenance personnel and the oil immersed transformer is not enough at this moment, so the operation of ascending a height can be carried out only when power failure occurs, otherwise, electric shock accidents are easy to happen. At present, the observation of the oil level needs to be carried out by first power off and then ascending, so that the operation is very inconvenient, the working efficiency of electric power personnel is greatly reduced, and the transformer fault can not be found in time.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a transformer is with oily monitoring audible-visual alarm device, fortune dimension personnel can monitor the oil level subaerial, need not the operation of ascending a height, and can in time discover that the oil level is unusual.
For reaching above purpose, the utility model provides an oil monitoring audible-visual annunciator for transformer, the transformer includes the oil tank, oil monitoring audible-visual annunciator includes:
the photoelectric switch comprises a first L ED lamp fixed in the oil tank and a photoelectric coupler used for receiving a light emitting wire of the first L ED lamp, wherein the photoelectric coupler is disconnected when the first L ED lamp is immersed by transformer oil, and is switched on when the first L ED lamp is not immersed by the transformer oil;
a second L ED lamp, the second L ED lamp located outside of the transformer;
a buzzer located outside the transformer;
and when the photoelectric coupler is switched on, the buzzer of the second L ED lamp sends light warning information and the buzzer sends sound warning information.
Preferably, the method further comprises the following steps:
and the temperature sensor is fixed in the oil tank, is electrically connected with the control device and is used for sensing the temperature of the transformer oil.
Preferably, the control device comprises a single chip microcomputer, and the photoelectric coupler, the second L ED lamp and the buzzer are all electrically connected with the single chip microcomputer.
Preferably, the control device further comprises a power supply circuit electrically connected with the single chip microcomputer.
Preferably, the power supply circuit comprises a resistance-capacitance voltage reduction circuit and a rectification voltage stabilizing circuit.
The utility model has the beneficial effects of a transformer oil monitoring audible-visual alarm device is provided, be fixed in oil level lower limit department with first L ED lamp, when the oil level is higher than the oil level lower limit, the first L ED lamp of transformer oil submergence and the light that sends first L ED lamp refract and block, the light energy that results in optoelectronic coupler to receive is not enough to make self switch over to the on-state, the power supply circuit of second L ED lamp and bee calling organ is broken, do not send warning information, when the oil level descends to below the oil level lower limit, first L ED lamp exposes the oil level, its light that sends is received by optoelectronic coupler, optoelectronic coupler is closed, the power supply circuit of second L ED lamp and bee calling organ switches on, send warning information, the fortune dimension personnel stand subaerial even stand far away or stand on the back to the transformer can receive light warning information and sound warning information, need not the operation of ascending a height, and can more discover unusually than the mode of traditional periodic inspection, the oil level has greatly improved fortune dimension personnel's work efficiency and has reduced fortune dimension personnel's working strength.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 is a block diagram of an example of an audible and visual alarm device for monitoring oil in a transformer.
In the figure:
1. a first L ED lamp 2, a photoelectric coupler;
3. a second L ED lamp, 4, a buzzer;
5. a temperature sensor;
6. a single chip microcomputer; 7. a resistance-capacitance voltage reduction circuit; 8. and a rectification voltage stabilizing circuit.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the embodiments of the present invention are clearly and completely described with reference to the drawings in the embodiments of the present invention, and obviously, the embodiments described below are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
Referring to fig. 1, the present embodiment provides an oil monitoring audible and visual alarm device for a transformer, where the transformer includes an oil tank, and the oil monitoring audible and visual alarm device includes a photoelectric switch, a second L ED lamp 3, a buzzer 4, and a control device.
The photoelectric switch comprises a first L ED lamp 1 fixed in the oil tank and a photoelectric coupler 2 used for receiving light rays emitted by the first L ED lamp 1, wherein when the first L ED lamp 1 is immersed by transformer oil, the photoelectric coupler 2 is disconnected, when the first L ED lamp 1 is not immersed by the transformer oil, the photoelectric coupler 2 is connected, the second L ED lamp 3 is positioned outside the transformer, the buzzer 4 is positioned outside the transformer, the control device is respectively electrically connected with the photoelectric coupler 2, the second L ED lamp 3 and the buzzer 4, and when the photoelectric coupler 2 is connected, the second L ED lamp 3 buzzer 4 sends light warning information and the buzzer 4 sends sound warning information.
Specifically, the first L ED lamp 1 is electrically connected to the control device and kept constantly on.
It can be understood that, fixing the first L ED lamp 1 at the lower limit of the oil level, when the oil level is higher than the lower limit of the oil level, the transformer oil submerges the first L ED lamp 1 and refracts and blocks the light emitted from the first L ED lamp 1, resulting in that the light energy received by the photocoupler 2 is not enough to switch itself to the on state, the power supply circuit of the second L ED lamp 3 and the buzzer 4 is disconnected, and no warning information is emitted, when the oil level drops below the lower limit of the oil level, the first L ED lamp 1 exposes out of the oil surface, the light emitted therefrom is received by the photocoupler 2, the photocoupler 2 is closed, the power supply circuit of the second L ED lamp 3 and the buzzer 4 is conducted, and the warning information is emitted.
Optionally, the oil monitoring audible and visual alarm device further comprises a temperature sensor 5, and the temperature sensor 5 is fixed in the oil tank, electrically connected with the control device and used for sensing the temperature of the transformer oil.
It can be understood that, when the temperature of the transformer oil is higher than the preset value, the control device controls the second L ED lamp 3 and the buzzer 4 to send warning information at the same time, so that the operation and maintenance personnel can find and process the oil temperature abnormity in time.
In this embodiment, the control device comprises a single chip microcomputer 6 and a power supply circuit, the photoelectric coupler 2, the second L ED lamp 3 and the buzzer 4 are all electrically connected with the single chip microcomputer 6, optionally, the single chip microcomputer 6 is small in size and low in manufacturing cost, and is suitable for being used as a processing unit of the oil monitoring audible and visual alarm device provided by the embodiment, the control device further comprises a power supply circuit electrically connected with the single chip microcomputer 6, further, the power supply circuit comprises a resistance-capacitance voltage reduction circuit 7 and a rectification voltage stabilizing circuit 8, it can be understood that the resistance-capacitance voltage reduction circuit 7 is used for reducing 220V alternating current into 5V alternating current, and the rectification voltage stabilizing circuit 8 is used for converting the 5V alternating current into 5V direct current, so that the single chip microcomputer 6 can use.
The transformer oil monitoring audible and visual alarm device provided by the embodiment can solve the following problems:
(1) once the transformer has oil leakage, insufficient oil, the temperature of transformer oil rises or faults such as oil injection, audible and visual alarm will send out alarm and warning at once, and the operation and maintenance personnel of being convenient for can in time discover the trouble when patrolling and looking for to can disappear by the very first time, can effectively improve equipment's security, guarantee electric wire netting equipment's normal reliable operation.
(2) Once the audible and visual alarm gives an alarm, nearby residents can find and inform a local power supply station at the first time, and the safety of the equipment is improved.
(3) And operation and maintenance personnel are prevented from stopping the power supply of the transformer to observe the oil level indicator, and the power supply reliability is improved.
The foregoing description of the embodiments has been presented for the purposes of illustration and description. It is not intended to be exhaustive or to limit the disclosure. Individual elements or features of a particular embodiment are generally not limited to that particular embodiment, but, where applicable, are interchangeable and can be used in a selected embodiment, even if not specifically shown or described. The same elements or features may also vary in many respects. Such variations are not to be regarded as a departure from the disclosure, and all such modifications are intended to be included within the scope of the disclosure.
Claims (5)
1. The utility model provides an oil monitoring audible and visual alarm device for transformer, the transformer includes the oil tank, its characterized in that, oil monitoring audible and visual alarm device includes:
the photoelectric switch comprises a first L ED lamp fixed in the oil tank and a photoelectric coupler used for receiving a light emitting wire of the first L ED lamp, wherein the photoelectric coupler is disconnected when the first L ED lamp is immersed by transformer oil, and is switched on when the first L ED lamp is not immersed by the transformer oil;
a second L ED lamp, the second L ED lamp located outside of the transformer;
a buzzer located outside the transformer;
and when the photoelectric coupler is switched on, the buzzer of the second L ED lamp sends light warning information and the buzzer sends sound warning information.
2. The transformer oil monitoring acousto-optic alarm device according to claim 1, characterized by further comprising:
and the temperature sensor is fixed in the oil tank, is electrically connected with the control device and is used for sensing the temperature of the transformer oil.
3. The transformer oil monitoring audible and visual alarm device according to claim 1, wherein the control device comprises a single chip microcomputer, and the photoelectric coupler, the second L ED lamp and the buzzer are all electrically connected with the single chip microcomputer.
4. The sound-light alarm device for monitoring oil for the transformer as claimed in claim 3, wherein the control device further comprises a power supply circuit electrically connected with the single chip microcomputer.
5. The sound-light alarm device for monitoring oil used in transformer of claim 4, wherein said power supply circuit comprises a resistance-capacitance voltage reduction circuit and a rectification voltage stabilizing circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922114850.5U CN211147803U (en) | 2019-11-29 | 2019-11-29 | Oil monitoring acousto-optic alarm device for transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922114850.5U CN211147803U (en) | 2019-11-29 | 2019-11-29 | Oil monitoring acousto-optic alarm device for transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211147803U true CN211147803U (en) | 2020-07-31 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922114850.5U Active CN211147803U (en) | 2019-11-29 | 2019-11-29 | Oil monitoring acousto-optic alarm device for transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211147803U (en) |
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2019
- 2019-11-29 CN CN201922114850.5U patent/CN211147803U/en active Active
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