CN212111659U - High-voltage live equipment corona discharge detection device based on acousto-optic-thermal combination technology - Google Patents
High-voltage live equipment corona discharge detection device based on acousto-optic-thermal combination technology Download PDFInfo
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- CN212111659U CN212111659U CN202020608859.1U CN202020608859U CN212111659U CN 212111659 U CN212111659 U CN 212111659U CN 202020608859 U CN202020608859 U CN 202020608859U CN 212111659 U CN212111659 U CN 212111659U
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Abstract
The utility model discloses a high-voltage live equipment corona discharge detection device based on acousto-optic-thermal combination technology, which comprises an upper computer, a processor, an ultraviolet detector, an infrared detector, an ultrasonic detector and an ultrasonic range finder, wherein the output end of the ultrasonic range finder, the output end of the ultrasonic detector, the output end of the infrared detector and the output end of the ultraviolet detector are connected with the input end of the processor, and the output end of the processor is connected with the input end of the upper computer; the distance between the ultrasonic distance meter and the part to be measured of the high-voltage electrified equipment is equal to the distance between the ultraviolet detector and the part to be measured of the high-voltage electrified equipment, and the device can accurately judge the abnormal condition of corona discharge of the part to be measured of the high-voltage electrified equipment.
Description
Technical Field
The utility model belongs to the technical field of high voltage live equipment overhauls, a high voltage live equipment corona discharge detection device based on reputation heat combination technique is related to.
Background
Corona discharge of high-voltage electrical equipment is a partial discharge phenomenon of air on the external surface of the equipment, and when the potential gradient of the surface of a conductor exceeds the electric field intensity of air, the air is dissociated to generate corona. The electrical apparatus corona discharges more strongly with higher voltage levels. With the increase of the discharge intensity, the corona discharge gradually progresses to brush discharge and spark discharge, and finally causes external insulation flashover (arc discharge). At the same time, corona discharge also causes energy loss, causes electromagnetic environment interference, produces corrosion damage to organic insulation and accelerates aging of materials. Therefore, it is necessary to detect corona discharge of high-voltage electrical equipment, repair defective portions, and prevent significant loss due to equipment failure, thereby achieving great economic benefits.
In the past, high-voltage equipment corona discharge detection mainly utilizes photon number generated by an ultraviolet imaging detector for corona discharge to judge the severity of the corona discharge, but only depends on the ultraviolet imaging detector to have certain limitation, can be influenced by factors such as wind speed, distance, temperature and the like, has great influence on a judgment result, and detection technologies such as ultrasonic waves, infrared rays and the like also have some limitations, so that the severity of the corona discharge is difficult to judge by simply using one detection means.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome above-mentioned prior art's shortcoming, provide a high voltage live equipment corona discharge detection device based on reputation heat combination technique, the device can accurately judge the corona discharge abnormal conditions at the high voltage live equipment position that awaits measuring.
In order to achieve the above object, the corona discharge detection device of the high-voltage live equipment based on the acousto-optic-thermal combination technology comprises an upper computer, a processor, an ultraviolet photon number for detecting the part to be detected of the high-voltage live equipment and generating the corona discharge amount y2The system comprises an ultraviolet detector of an ultraviolet spectrum, an infrared detector of a thermal imaging spectrum of a part to be detected of the high-voltage live equipment, an ultrasonic detector of ultrasonic discharge data of the part to be detected of the high-voltage live equipment, and an ultrasonic range finder of a testing distance between the ultraviolet detector and the part to be detected of the high-voltage live equipment, wherein the output end of the ultrasonic range finder, the output end of the ultrasonic detector, the output end of the infrared detector and the output end of the ultraviolet detector are connected with the input end of a processor, and the output end of the processor is connected with the input end of an upper computer;
the distance between the ultrasonic distance meter and the part to be measured of the high-voltage electrified equipment is equal to the distance between the ultraviolet detector and the part to be measured of the high-voltage electrified equipment.
The device is characterized by further comprising a temperature and humidity sensor used for detecting the ambient temperature and the ambient humidity of the to-be-detected part of the high-voltage live equipment, wherein the output end of the temperature and humidity sensor is connected with the input end of the processor.
The alarm device also comprises an audible and visual alarm, wherein the audible and visual alarm is connected with the upper computer.
The processor is connected with the upper computer through the wireless communication module.
The device also comprises a memory, wherein the memory is connected with the upper computer.
The utility model discloses following beneficial effect has:
high-voltage live equipment corona discharge detection device based on reputation heat combination technique when concrete operation, judge the corona discharge abnormal conditions at high-voltage live equipment position that awaits measuring according to ultraviolet detector, infrared detector, ultrasonic detector and ultrasonic ranging appearance detect the figure that obtains comprehensive, the accuracy is higher, can in time discover equipment defect.
Drawings
Fig. 1 is a schematic diagram of the present invention.
Wherein, 1 is a processor, 2 is an ultraviolet detector, 3 is an infrared detector, 4 is an ultrasonic detector, 5 is an ultrasonic distance meter, 6 is a temperature and humidity sensor, 7 is a memory, 8 is an audible and visual alarm, and 9 is an upper computer.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings:
referring to fig. 1, high voltage live equipment corona discharge detection device based on reputation heat is united technique include host computer 9, treater 1, be used for detecting the ultraviolet photon number that detects the position that high voltage live equipment awaits measuring and generate corona discharge amount y2The system comprises an ultraviolet detector 2 of an ultraviolet spectrum, an infrared detector 3 for detecting a thermal imaging spectrum of a part to be detected of the high-voltage live equipment, an ultrasonic detector 4 for detecting ultrasonic discharge data of the part to be detected of the high-voltage live equipment, and an ultrasonic range finder 5 for detecting a test distance between the ultraviolet detector 2 and the part to be detected of the high-voltage live equipment, wherein the output end of the ultrasonic range finder 5, the output end of the ultrasonic detector 4, the output end of the infrared detector 3 and the output end of the ultraviolet detector 2 are connected with the input end of a processor 1, and the output end of the processor 1 is connected with the input end of an upper; the distance between the ultrasonic distance meter 5 and the part to be measured of the high-voltage live equipment is equal to the distance between the ultraviolet detector 2 and the part to be measured of the high-voltage live equipment.
The utility model also comprises an audible and visual alarm 8, a memory 7 and a temperature and humidity sensor 6 for detecting the ambient temperature and humidity around the part to be detected of the high-voltage live equipment, wherein the output end of the temperature and humidity sensor 6 is connected with the input end of the processor 1, and the processor 1 is connected with an upper computer 9 through a wireless communication module; the audible and visual alarm 8 is connected with the upper computer 9; the memory 7 is connected to the upper computer 9.
The utility model discloses a concrete working process does:
when corona discharge detection is carried out on high-voltage electrified equipment, the part to be detected is positioned through the ultrasonic distance meter 5, and the test distance x between the ultrasonic distance meter 5 and the discharge position is determined in the safe operation distance2Then, the information of the testing distance between the ultrasonic distance meter 5 and the discharging position is sent to the processor 1, the ultraviolet detector 2 detects the ultraviolet photon number of the part to be tested of the high-voltage charged equipment in real time and generates the corona discharge amount y2And ultraviolet spectrum, then the number of ultraviolet photons and the amount y of corona discharge generated2The ultraviolet spectrum is sent to the processor 1, the infrared detector 3 is used for carrying out infrared thermal imaging on the part to be tested of the high-voltage charged equipment, the measured infrared thermal imaging spectrum is sent to the processor 1, the ultrasonic detector 4 is used for carrying out ultrasonic testing on the tested part of the high-voltage charged equipment, the measured ultrasonic discharge data is sent to the processor 1, and the processor 1 is used for sending the testing distance information between the ultrasonic range finder 5 and the discharge position, the measured ultraviolet photon number, the generated corona discharge amount and ultraviolet spectrum, the measured thermal imaging spectrum and the measured ultrasonic discharge data to the upper computer 9;
the upper computer 9 calculates the corona discharge amount y at the standard distance of 5.5m according to the ultraviolet diagnosis technology application guide rule of the DL/T345-2010 electrified equipment1Amount of corona discharge y at standard distance of 5.5m1When the corona discharge amount is larger than the preset corona discharge amount, the corona discharge amount of the part to be measured of the high-voltage charging equipment is abnormal, wherein the corona discharge amount y at the standard distance of 5.5m1Comprises the following steps:
and simultaneously judging whether the ultrasonic discharge data and the infrared spectrum are abnormal or not, and comparing the ultrasonic discharge data and the ultraviolet photon count with the ultraviolet spectrum, the infrared imaging spectrum, the ultrasonic discharge data and the ultraviolet photon count of the corona discharge of the corresponding part of the high-voltage charged equipment under the normal condition according to the similar comparison method to judge whether the corona discharge quantity of the part to be detected of the high-voltage charged equipment is abnormal or not, wherein when the ultraviolet spectrum, the infrared imaging spectrum, the ultrasonic discharge data or the ultraviolet photon count are abnormal, the fact that the corona discharge quantity of the part to be detected of the high-voltage charged equipment is abnormal is indicated.
In addition, temperature information and humidity information around the part to be detected of the high-voltage electrified equipment are detected through the temperature and humidity sensor 6 and then sent to the processor 1, the processor 1 sends the temperature information and the humidity information to the upper computer 9, the upper computer 9 compares the temperature information and the humidity information around the part to be detected of the high-voltage electrified equipment with a preset temperature value and a preset humidity value, and when the temperature information around the part to be detected of the high-voltage electrified equipment is greater than the preset temperature value or when the humidity information around the part to be detected is greater than the preset humidity value, the fact that the corona discharge quantity of the part to be detected of the high-voltage electrified equipment is abnormal is indicated.
In addition, the attribute, the occurrence part and the severity of the abnormal corona can be judged and the defect can be graded according to the corona state of the high-voltage charging equipment.
Claims (5)
1. The corona discharge detection device of the high-voltage charged equipment based on the acousto-optic-thermal combination technology is characterized by comprising an upper computer (9), a processor (1) and a detector for detecting the ultraviolet photon number of the part to be detected of the high-voltage charged equipment and generating corona discharge y2And ultraviolet detector (2) of ultraviolet map, infrared detector (3) for detecting the thermal imaging map of the part to be detected of the high-voltage live equipment, ultrasonic detector (4) for ultrasonic discharge data of the part to be detected of the high-voltage live equipment, ultrasonic range finder (5) for detecting the test distance between ultraviolet detector (2) and the part to be detected of the high-voltage live equipment, the output end of ultrasonic range finder (5), the output end of ultrasonic detector (4), the output end of infrared detector (3) and the output end of ultraviolet detector (2) are connected with the input end of processor (1), the output end of processor (1) and the input end of upper computer (9)Connecting;
the distance between the ultrasonic distance meter (5) and the part to be measured of the high-voltage electrified equipment is equal to the distance between the ultraviolet detector (2) and the part to be measured of the high-voltage electrified equipment.
2. The corona discharge detection device of high-voltage live equipment based on acousto-optic-thermal combined technology according to claim 1, further comprising a temperature and humidity sensor (6) for detecting ambient temperature and humidity of the to-be-detected part of the high-voltage live equipment, wherein an output end of the temperature and humidity sensor (6) is connected with an input end of the processor (1).
3. The high-voltage charged equipment corona discharge detection device based on the acousto-optic-thermal combined technology as claimed in claim 1, further comprising an acousto-optic alarm (8), wherein the acousto-optic alarm (8) is connected with the upper computer (9).
4. The high-voltage charged equipment corona discharge detection device based on acousto-optic-thermal combined technology according to claim 1, characterized in that the processor (1) is connected with the upper computer (9) through a wireless communication module.
5. An acousto-optic-thermal combination technology-based high voltage charged equipment corona discharge detection device according to claim 1, characterized by further comprising a memory (7), wherein the memory (7) is connected with the upper computer (9).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020608859.1U CN212111659U (en) | 2020-04-21 | 2020-04-21 | High-voltage live equipment corona discharge detection device based on acousto-optic-thermal combination technology |
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| CN202020608859.1U CN212111659U (en) | 2020-04-21 | 2020-04-21 | High-voltage live equipment corona discharge detection device based on acousto-optic-thermal combination technology |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113253076A (en) * | 2021-06-25 | 2021-08-13 | 广东电网有限责任公司 | Corona detection device and method for casing of box-type electrical equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113253076A (en) * | 2021-06-25 | 2021-08-13 | 广东电网有限责任公司 | Corona detection device and method for casing of box-type electrical equipment |
| CN113253076B (en) * | 2021-06-25 | 2023-02-03 | 广东电网有限责任公司 | Corona detection device and method for casing of box-type electrical equipment |
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