CN217606015U - Discharge detection device of cable terminal in distribution equipment - Google Patents
Discharge detection device of cable terminal in distribution equipment Download PDFInfo
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- CN217606015U CN217606015U CN202221222901.1U CN202221222901U CN217606015U CN 217606015 U CN217606015 U CN 217606015U CN 202221222901 U CN202221222901 U CN 202221222901U CN 217606015 U CN217606015 U CN 217606015U
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- 238000007599 discharging Methods 0.000 abstract description 9
- 238000007689 inspection Methods 0.000 abstract description 5
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Abstract
The utility model discloses a discharge detection device of a cable terminal in distribution equipment, which comprises a photoelectric sensor, an ultrasonic sensor and a control module, wherein the photoelectric sensor is used for collecting optical signals generated by the discharge of the cable terminal and converting the optical signals into electric signals, and the output end of the photoelectric sensor is connected with the input end of the control module; the ultrasonic sensor is used for collecting ultrasonic signals generated by the discharge of the cable terminal and converting the ultrasonic signals into electric signals, and the output end of the ultrasonic sensor is connected with the input end of the control module; the output end of the control module is connected with the reminding device, and the control module drives and controls the reminding device to send out discharge reminding based on electric signals collected by the photoelectric sensor and the ultrasonic sensor. The utility model has the advantages that: the discharging of the cable terminal is detected through the photoelectric sensor and the ultrasonic sensor, so that the detection result is more accurate and reliable; and a card-turning type indicator is adopted, so that inspection personnel can find the discharge fault in time conveniently.
Description
Technical Field
The utility model relates to a distribution equipment's safety inspection field, in particular to cable terminal's detection device that discharges among distribution equipment.
Background
The cable terminal is used as a weak point of a cable distribution line, the fault rate is high, and the power supply reliability of the line is greatly influenced. The cable terminal discharges and belongs to one of the high-fault conditions, so the discharge of the cable terminal head needs to be inspected, the prior art mainly adopts a manual inspection method, the efficiency of cable discharge phenomenon is low and the labor cost is high through manual inspection, the detection cost of special equipment is high, and the field applicability is not strong.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art not enough, provide a distribution equipment detection device that discharges for the external performance of discharging through detecting cable terminal comes the automatic identification condition of discharging, and in time sends out the instruction, detects convenient and the result is accurate.
In order to realize the purpose, the utility model discloses a technical scheme be: a discharge detection device of a cable terminal in distribution equipment comprises a photoelectric sensor, an ultrasonic sensor and a control module, wherein the photoelectric sensor is used for collecting optical signals generated by discharge of the cable terminal and converting the optical signals into electric signals, and the output end of the photoelectric sensor is connected with the input end of the control module;
the ultrasonic sensor is used for collecting ultrasonic signals generated by the discharge of the cable terminal and converting the ultrasonic signals into electric signals, and the output end of the ultrasonic sensor is connected with the input end of the control module;
the output end of the control module is connected with the reminding device, and the control module drives and controls the reminding device to send out discharge reminding based on electric signals collected by the photoelectric sensor and the ultrasonic sensor.
The reminding device is a card turning type indicator.
Photoelectric sensor, ultrasonic sensor all set up in the cable chamber that cable termination corresponds.
And a photoelectric conditioning circuit is connected between the control module and the photoelectric sensor in series and is used for filtering a natural light partial signal in an output signal of the photoelectric sensor.
An ultrasonic signal conditioning circuit is arranged between the control module and the ultrasonic sensor in series and used for filtering natural ultrasonic signals in signals output by the ultrasonic sensor.
The device also comprises a power supply, wherein the power supply is a UPS power supply or a solar battery, and the power supply supplies power to the control module, the ultrasonic sensor and the photoelectric sensor.
The card-turning indicator has a function of the number of actions and is used for recording the number of actions of the card-turning indicator.
The utility model has the advantages that: the discharging of the cable terminal is detected through the photoelectric sensor and the ultrasonic sensor, so that the detection result is more accurate and reliable; the board turning type indicator is adopted, so that the polling personnel can find the discharge fault in time conveniently; by adopting the UPS, the stability and reliability of the power supply are ensured, and the reliable operation of the device is ensured. The cable terminal discharge can be detected in real time, and an obvious signal is sent out, so that the operation and maintenance personnel can conveniently check the cable terminal discharge; the device can be used repeatedly according to the action times of the turnover indicator, has strong practicability and universality, and can be placed in a cable chamber of a box-type switching station and a ring main unit or a cable chamber of a middle cabinet; the discharge detection device is convenient to use, relatively low in price and easy to install on the existing structure, the detection is accurate, the discharge signals are acquired by two methods, namely a photoelectric sensor and an ultrasonic sensor, and meanwhile, the control module can eliminate external interference factors through the types of ultrasonic waves and light waves; the device can get electricity through PT, UPS, solar cell panel etc. multiple form, for the practicality that has further increased the device.
Drawings
The contents of the various figures of the present specification and the labels in the figures are briefly described as follows:
fig. 1 is a structural schematic diagram of the present invention.
The labels in the above figures are: 1. a photosensor; 2. an ultrasonic sensor; 3. a card-flipping indicator.
Detailed Description
The following description of preferred embodiments of the invention will be made in further detail with reference to the accompanying drawings.
To artifical patrol and examine, look and examine among the prior art, this kind of mode wastes time and energy and artifical visual observation is not necessarily accurate, consequently needs a kind of equipment that can carry out the detection automatically to the cable terminal discharge and detects, this application carries out signal acquisition based on the cable terminal external appearance that discharges and judges to the accurate control that discharges effectively, wherein the performance of discharging mainly has two kinds, forms creepage channel on cable accessories or pile head, sends the flare of specific wavelength. And secondly, ultrasonic waves can be emitted while the creepage channel is formed. Therefore, the present application monitors the discharge by the ultrasonic sensor and the photoelectric sensor. The specific scheme is as follows:
as shown in fig. 1, a discharge detection device for a cable terminal in a power distribution device includes a photoelectric sensor, an ultrasonic sensor, and a control module, wherein the cable terminal is generally disposed in a cable chamber, so that the photoelectric sensor and the ultrasonic sensor of the present application need to be disposed near or around the cable terminal in order to detect light and ultrasonic signals generated by discharge, and in the present application, the photoelectric sensor and the ultrasonic sensor are disposed in the cable chamber, so as to collect a discharge signal of the cable terminal. Wherein:
the photoelectric sensor is used for collecting optical signals generated by the discharge of the cable terminal and converting the optical signals into electric signals, and the output end of the photoelectric sensor is connected with the input end of the control module;
the ultrasonic sensor is used for collecting ultrasonic signals generated by the discharge of the cable terminal and converting the ultrasonic signals into electric signals, and the output end of the ultrasonic sensor is connected with the input end of the control module;
the control module is realized by adopting a controller with a data processing function, and a 51-series single chip microcomputer is adopted for development during implementation of the application, so that the cost is simple and the development is simple. The output end of the control module is connected with the reminding device, and the control module drives and controls the reminding device to send out discharge reminding based on electric signals collected by the photoelectric sensor and the ultrasonic sensor. After the control module respectively collects the electric signals corresponding to the discharge through the ultrasonic sensor and the photoelectric sensor, the control module drives the reminding device to work to send out reminding signals, so that inspection personnel can conveniently find and process the signals in time. The output signal of the photoelectric sensor and the ultrasonic signal are considered to be constant or satisfy a certain condition when the discharge is not performed, and when the discharge is performed, a photoelectric voltage signal representing a discharge state and a photoelectric signal representing discharge ultrasonic waves are correspondingly generated.
In the application, the reminding device adopts a turning indicator, the turning indicator is a reminding device commonly used in the field of power grid fault indication, and reminds a discharging state in a turning mode, wherein the turning indicator is configured to have an action frequency function and is used for recording the action frequency of the turning indicator. And the operation and maintenance personnel determine that the cable terminal is discharged through turning the plate, and simultaneously preliminarily judge the discharging severity according to the action times.
In a preferred embodiment of the present application, because the discharge signal of the cable that this application gathered, consequently in order to detect more accurately, this application photoelectric sensor, ultrasonic sensor can adopt a plurality ofly, if generally set up four, set up respectively in four direction positions about cable chamber is indoor for accurate reliable data collection.
Further, in order to ensure the accuracy of the acquired data, the cable chamber is subjected to full-closed treatment, so that the influence of the external environment is reduced
In a preferred embodiment of the present application, a photoelectric conditioning circuit is connected in series between the control module and the photosensor, and the photoelectric conditioning circuit is used for filtering out a natural light partial signal in an output signal of the photosensor. The photoelectric conditioning circuit can be a filter circuit or a voltage subtracter is adopted to filter the influence of natural light on the photoelectric sensor, the voltage subtracter subtracts the voltage of an input end and outputs the interpolated voltage through a differential discharge circuit, the in-phase end of the voltage subtracter is connected with the photoelectric sensor, the inverting end of the voltage subtracter is connected with reference voltage, the reference voltage is the voltage output generated by the photoelectric sensor under the natural light, the voltage output by the output end of the subtracter after passing through the subtracter is a voltage signal for filtering the natural light, the voltage represents whether a cable head is in discharge or not, and the voltage for outputting whether the discharge or not is different.
In this application of the same reason, be provided with ultrasonic signal conditioning circuit, concatenate between control module and ultrasonic sensor and set up ultrasonic signal conditioning circuit, ultrasonic signal conditioning circuit is arranged in the nature ultrasonic signal of filtering ultrasonic sensor output signal. The ultrasonic signal conditioning circuit can be filter circuits or a voltage subtracter is adopted to filter the influence of natural ultrasonic waves on ultrasonic signals, the voltage subtracter subtracts the voltage of an input end and outputs the voltage of a difference value, the in-phase end of the voltage subtracter is connected with the ultrasonic signal conditioning circuit, the inverting end of the voltage subtracter is connected with reference voltage, the reference voltage is the voltage output generated by an ultrasonic sensor in a cable chamber under the natural world, the voltage output by the output end of the subtracter after passing through the subtracter is the voltage signal after the natural ultrasonic waves are filtered, the voltage represents whether a cable head is in discharge or not, and the voltage output by the discharge or not is also different.
In a preferred embodiment, the power supply is a UPS power supply or a power supply derived from a solar cell or a PT cabinet, and supplies power to the control module, the ultrasonic sensor and the photoelectric sensor. And the reliable operation of the system is ensured.
The discharging signal is acquired by the photoelectric sensor and the ultrasonic sensor, so that the accuracy of equipment detection is guaranteed. The photoelectric sensor and the ultrasonic sensor can be placed at different positions in the cable chamber according to field conditions, so that the space of the cable chamber is fully covered, and the photoelectric sensor and the ultrasonic sensor are generally suggested to be placed on an upper panel, a lower panel, a left panel and a right panel of the cable chamber; the control module can carry out logic judgment and eliminate the influence of external natural light and natural ultrasonic waves according to specific wavelength and ultrasonic waves during discharging; in order to improve the detection accuracy of the device, the cable chamber is totally closed, so that the influence of the external environment is reduced; the card-turning alarm can act according to the control module signal and record the received action times, so that the detection accuracy is improved. Meanwhile, operation and maintenance personnel can confirm the severity of the defect through the action times, and the alarm has a manual reset function. The power supply of the device is taken from a PT cabinet or a UPS or a solar cell panel of the power distribution equipment, so that the field applicability of the equipment is improved.
It is clear that the specific implementation of the invention is not restricted to the above-described modes, and that various insubstantial modifications of the inventive concept and solution are within the scope of protection of the invention.
Claims (7)
1. The utility model provides a cable termination's detection device that discharges among distribution equipment which characterized in that: the cable terminal comprises a photoelectric sensor, an ultrasonic sensor and a control module, wherein the photoelectric sensor is used for collecting optical signals generated by the discharge of a cable terminal head and converting the optical signals into electric signals, and the output end of the photoelectric sensor is connected with the input end of the control module;
the ultrasonic sensor is used for collecting ultrasonic signals generated by the discharge of the cable terminal and converting the ultrasonic signals into electric signals, and the output end of the ultrasonic sensor is connected with the input end of the control module;
the output end of the control module is connected with the reminding device, and the control module drives and controls the reminding device to send out discharge reminding based on electric signals collected by the photoelectric sensor and the ultrasonic sensor.
2. The apparatus for detecting discharge of a cable termination in an electrical distribution apparatus of claim 1, wherein: the reminding device is a card turning type indicator.
3. The apparatus for detecting discharge of a cable termination in an electrical distribution equipment according to claim 1, wherein: photoelectric sensor, ultrasonic sensor all set up in the cable chamber that cable terminal corresponds.
4. A discharge detection device for a cable termination in an electrical distribution apparatus as claimed in any one of claims 1 to 3, wherein: and a photoelectric conditioning circuit is connected in series between the control module and the photoelectric sensor and is used for filtering out a natural light partial signal in an output signal of the photoelectric sensor.
5. A discharge detecting device of a cable termination in an electric distribution apparatus as claimed in any of claims 1 to 3, characterized in that: an ultrasonic signal conditioning circuit is arranged between the control module and the ultrasonic sensor in series and used for filtering natural ultrasonic signals in signals output by the ultrasonic sensor.
6. A discharge detection device for a cable termination in an electrical distribution apparatus as claimed in any one of claims 1 to 3, wherein: the device also comprises a power supply, wherein the power supply is a UPS power supply or a solar battery, and the power supply supplies power for the control module, the ultrasonic sensor and the photoelectric sensor.
7. The apparatus for detecting discharge of a cable termination in an electrical distribution apparatus of claim 2, wherein: the card-turning indicator has a function of the number of actions and is used for recording the number of actions of the card-turning indicator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221222901.1U CN217606015U (en) | 2022-05-20 | 2022-05-20 | Discharge detection device of cable terminal in distribution equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221222901.1U CN217606015U (en) | 2022-05-20 | 2022-05-20 | Discharge detection device of cable terminal in distribution equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217606015U true CN217606015U (en) | 2022-10-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221222901.1U Active CN217606015U (en) | 2022-05-20 | 2022-05-20 | Discharge detection device of cable terminal in distribution equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217606015U (en) |
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2022
- 2022-05-20 CN CN202221222901.1U patent/CN217606015U/en active Active
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| GR01 | Patent grant | ||
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Effective date of registration: 20230710 Address after: 241000 No.2 Beijing Road, Jinghu District, Wuhu City, Anhui Province Patentee after: Wuhu Mingyuan Group Co. Address before: 241000 No. 18, Jinghu, Wuhu District, Anhui, Zhongshan North Road Patentee before: WUHU POWER SUPPLY COMPANY OF STATE GRID ANHUI ELECTRIC POWER Co.,Ltd. Patentee before: STATE GRID CORPORATION OF CHINA |
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