CN216161581U - Transformer vacuumizing ultrasonic monitoring power-off system - Google Patents
Transformer vacuumizing ultrasonic monitoring power-off system Download PDFInfo
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- CN216161581U CN216161581U CN202122237125.4U CN202122237125U CN216161581U CN 216161581 U CN216161581 U CN 216161581U CN 202122237125 U CN202122237125 U CN 202122237125U CN 216161581 U CN216161581 U CN 216161581U
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- measuring sensor
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Abstract
The utility model discloses a transformer vacuumizing ultrasonic monitoring power-off system in the technical field of transformers, which comprises a transformer shell and a transformer core group arranged in the transformer shell, wherein each inner side wall of the transformer shell is provided with a distance measuring sensor, the transformer vacuumizing ultrasonic monitoring power-off system also comprises a single chip microcomputer and a relay, each distance measuring sensor is electrically connected with the single chip microcomputer through a detection signal processing device respectively and is used for transmitting a detection signal, a controlled end of the relay controls the on-off of a power supply circuit of a vacuumizing device, and the relay is electrically connected with the single chip microcomputer and is used for receiving an on-off instruction of an execution end and is used for preventing the vacuumizing device from continuously working after the transformer shell is deformed.
Description
Technical Field
The utility model relates to the technical field of transformer structures, in particular to a transformer vacuumizing ultrasonic monitoring power-off system.
Background
The on-site maintenance of the transformer is carried out according to the standards of the vacuum degree of the pumped hot oil circulation drying, and no clear regulation is provided in national and industrial regulations and standards. Although transformer manufacturers have recorded the vacuum degree and pressure maintaining time of vacuum oil injection of transformers in factory information, transformers to be overhauled on site are standard before 2000 years of operation, regulations do not require that 110kV transformers must be vacuumized and injected with oil, so that transformer oil tanks with old structures have few reinforcing ribs and insufficient strength, a plurality of transformer manufacturers have lost factory information of individual transformers, or factory information of manufacturers does not record specific vacuum degree requirements at all.
In the field maintenance of the transformer, the transformer body is dried mainly by vacuumizing and hot oil circulation after the transformer hanging cover is maintained. In the existing transformer overhaul, the transformer oil tank after running for many years is considered to be slightly deformed, the vacuum degree is slightly lower than the factory information for conservation, the standards of execution in various places are different, the randomness is higher, and incomplete drying or low drying efficiency of the transformer is often caused.
Based on the above, the utility model designs a transformer vacuumizing ultrasonic monitoring power-off system to solve the above problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a transformer evacuation ultrasonic wave monitors outage system to solve above-mentioned technical problem.
In order to realize the purpose, the utility model provides the following technical scheme: the utility model provides a transformer evacuation ultrasonic wave keeps watch on outage system, include transformer housing and set up in transformer core group in the transformer housing, all install distance measuring sensor on each inside wall of transformer housing, still include singlechip and relay, each distance measuring sensor respectively through detection signal processing apparatus with singlechip electric connection is used for transmitting detection signal, the relay is controlled the break-make of end control evacuating device power supply circuit, relay and singlechip electric connection are used for receiving execution end break-make instruction.
Preferably, the transformer shell is of a rectangular structure, and the four distance measuring sensors are respectively located on the inner walls of the periphery of the transformer shell.
Preferably, the distance measuring sensor is an ultrasonic distance measuring sensor.
Preferably, the detection signal processing device includes a signal amplifier and an a/D conversion module.
Preferably, the power supply circuit of the vacuum pumping device is connected with a 220v alternating current power supply.
Compared with the prior art, utility model's beneficial effect does:
the utility model relates to a transformer vacuumizing ultrasonic monitoring power-off system.A distance measuring sensor is arranged on a transformer shell, the deformation condition of each side wall of the transformer shell under the action of negative pressure is indirectly monitored by monitoring the distance between the inner wall of the transformer shell and a transformer core group in real time, when the monitoring distance of the distance measuring sensor is smaller than a standard value, a singlechip sends a disconnection electric signal instruction to a relay, and a power supply circuit of a vacuumizing device is automatically disconnected, so that the vacuumizing device is blocked from continuously working, the transformer shell is prevented from further deforming, and a maintainer can know the abnormal condition of the deformation of the transformer shell, even if a related maintenance measure is taken.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive work.
FIG. 1 is a schematic diagram of the system of the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1-transformer shell, 2-transformer core group, 3-distance measuring sensor, 4-single chip microcomputer, 5-relay, 6-detection signal processing device and 7-220v alternating current power supply.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by a person skilled in the art without any inventive work based on the embodiments of the present invention belong to the protection scope of the present invention.
Referring to fig. 1, the utility model provides a technical solution: a transformer vacuumizing ultrasonic monitoring outage system comprises a transformer shell 1 and a transformer core group 2 arranged in the transformer shell 1, wherein distance measuring sensors 3 are arranged on inner side walls of the transformer shell 1, in the embodiment, the transformer shell 1 is of a rectangular structure, the four distance measuring sensors 3 are respectively arranged on the inner walls around the transformer shell 1, the distance between the inner wall of the transformer shell 1 and the inner wall of the transformer core group 2 is respectively monitored in real time, the deformation condition of each side wall of the transformer shell 1 under the action of negative pressure is indirectly monitored, and when the monitoring distance of the distance measuring sensors 3 is smaller than a standard value, the transformer shell 1 is described to be deformed; the number of the actual distance measuring sensors 3 corresponds to the number of the side wall surfaces of the transformer shell 1; furthermore, the distance measuring sensor 3 is an ultrasonic distance measuring sensor, the commonly used ultrasonic sensor is composed of a piezoelectric wafer, and can emit ultrasonic waves and receive the ultrasonic waves, the detection distance can be measured and calculated by utilizing the time from the ultrasonic wave emitted by the ultrasonic distance measuring sensor to the ultrasonic wave receiving use, or the time is directly compared with the detection time value corresponding to the standard distance in the system, so that whether the side wall of the transformer shell 1 is deformed or not can be known; the device also comprises a singlechip 4 and a relay 5, each distance measuring sensor 3 is electrically connected with the singlechip 4 through a detection signal processing device 6 respectively and is used for transmitting a detection signal, the detection signal processing device 6 comprises a signal amplifier and an A/D conversion module and is used for converting an original digital signal of the distance measuring sensor 3 into an analog signal which can be received and identified by the singlechip 4, the controlled end of the relay 5 controls the on-off of a power supply circuit of the vacuum pumping device, the relay 5 is electrically connected with the singlechip 4 and is used for receiving an on-off instruction of an execution end, the power supply circuit of the vacuum pumping device is connected with a 220v alternating current power supply 7, when the singlechip 4 receives a deformation signal, a corresponding stop signal is sent out, the main control end of the relay 5 is disconnected from an electrified state, the controlled end of the relay 5 is disconnected therewith, the power supply circuit of the vacuum pumping device is disconnected therewith, and the continuous work of the vacuum pumping device is blocked, further deformation of the transformer housing 1 is prevented and thus maintenance personnel are informed of an abnormal situation of deformation of the transformer housing 1, even if relevant maintenance measures are taken.
In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as a fixed connection, a detachable connection, or an integral part; can be mechanically or electrically connected; the term "connected" may refer to a direct connection, an indirect connection through an intermediate, a connection between two elements or an interaction relationship between two elements, and unless otherwise specifically defined, the term should be understood as having a specific meaning in the present application by those skilled in the art.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a transformer evacuation ultrasonic wave monitors outage system which characterized in that: including transformer housing (1) and set up in transformer core group (2) in transformer housing (1), all install distance measuring sensor (3) on each inside wall of transformer housing (1), still include singlechip (4) and relay (5), each distance measuring sensor (3) respectively through detect signal processing apparatus (6) with singlechip (4) electric connection is used for transmitting detected signal, relay (5) are controlled the break-make of end control evacuating device power supply circuit, relay (5) and singlechip (4) electric connection are used for receiving execution end break-make instruction.
2. The transformer vacuumizing ultrasonic monitoring power-off system according to claim 1, wherein: the transformer shell (1) is of a rectangular structure, and the four distance measuring sensors (3) are respectively located on the inner walls of the periphery of the transformer shell (1).
3. The transformer vacuumizing ultrasonic monitoring power-off system according to claim 1, wherein: the distance measuring sensor (3) is an ultrasonic distance measuring sensor.
4. The transformer vacuumizing ultrasonic monitoring power-off system according to claim 1, wherein: the detection signal processing device (6) comprises a signal amplifier and an A/D conversion module.
5. The transformer vacuumizing ultrasonic monitoring power-off system according to claim 1, wherein: the power supply circuit of the vacuum pumping device is connected with a 220v alternating current power supply (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122237125.4U CN216161581U (en) | 2021-09-15 | 2021-09-15 | Transformer vacuumizing ultrasonic monitoring power-off system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122237125.4U CN216161581U (en) | 2021-09-15 | 2021-09-15 | Transformer vacuumizing ultrasonic monitoring power-off system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216161581U true CN216161581U (en) | 2022-04-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122237125.4U Active CN216161581U (en) | 2021-09-15 | 2021-09-15 | Transformer vacuumizing ultrasonic monitoring power-off system |
Country Status (1)
| Country | Link |
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| CN (1) | CN216161581U (en) |
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2021
- 2021-09-15 CN CN202122237125.4U patent/CN216161581U/en active Active
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