CN218767089U - Non-contact electricity testing device for power distribution network - Google Patents
Non-contact electricity testing device for power distribution network Download PDFInfo
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- CN218767089U CN218767089U CN202222862928.3U CN202222862928U CN218767089U CN 218767089 U CN218767089 U CN 218767089U CN 202222862928 U CN202222862928 U CN 202222862928U CN 218767089 U CN218767089 U CN 218767089U
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Abstract
The utility model provides a distribution network non-contact tests electric installation, including ultraviolet sensing device, ultraviolet sensing device's side is equipped with ultraviolet sensing drive arrangement, be equipped with range unit between ultraviolet sensing drive arrangement and the ultraviolet sensing device, and range unit's both ends are connected ultraviolet sensing device and ultraviolet sensing drive arrangement respectively, and inside walking the line of ultraviolet sensing drive arrangement and passing through range unit inside, display device is installed to ultraviolet sensing drive arrangement's tip. The non-contact electroscope is different from the traditional electroscope mode, can realize electroscope operation without directly contacting with a high-voltage transmission line, and has the characteristics of small size, portability and accurate result, and can bring huge practical value and economic benefit.
Description
Technical Field
The utility model relates to an electricity technical field is tested to the distribution network, especially relates to distribution network non-contact tests electric installation.
Background
At present, the electroscope that the electric power industry used is direct contact mostly, realizes electroscope based on the principle of electric capacity partial pressure usually, installs the electroscope on the action bars, and the during operation is with electroscope direct and high tension transmission line contact, and resistance in the electroscope reduces high voltage to safe voltage value, forms a return circuit through human body to ground.
The traditional electroscope has the following defects: 1. the traditional electroscope is small in size and easy to carry, but can work only by contacting with a high-voltage transmission line, so that potential safety hazards exist, and if a battery is used in the working process, the electroscope cannot sound correctly or emits light due to the fact that the electric energy of the battery is exhausted and cannot be replaced timely, the potential safety hazards are also brought; 2. the electroscope can only detect one voltage class, such as the electroscope of 66kV, and can not be used under other voltage classes except 66kV, all insulating rods of the handheld electroscope need to be pulled to be enough to be used, and safety regulations indicate that insulating gloves with corresponding voltage classes are needed to be used when high-voltage electricity is detected, the insulating rods connected with the electroscope need to be pulled out completely, enough distance is kept between an electroscope and an electroscope, and the electroscope can not carry out electricity detection operation outdoors in severe weather environment; 3. the existence of multirange electroscope has also indirectly increased the possibility that the operating personnel took the electroscope by mistake, at the in-process that direct contact live equipment tested the electricity, the risk of touching adjacent live equipment by mistake has also been increased, to the equipment of high voltage class, the operating personnel still need carry the supplementary electricity of testing of elongated insulator spindle, the quality of insulator spindle has directly decided personnel's risk, when needs test the electricity to the equipment far away from, can cause the operational difficulty and increased operating personnel's burden, contact electroscope is comparatively ripe of development, but along with the continuous improvement of transmission of electricity grade, the complex operation scheduling problem that the direct electricity testing mode was exposed can't be avoided all the time.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the shortcoming that exists among the prior art, and the distribution network non-contact who proposes tests electric installation.
In order to achieve the above purpose, the utility model adopts the following technical scheme: join in marriage electric installation is tested to power distribution network non-contact, including ultraviolet sensing device, ultraviolet sensing device's side is equipped with ultraviolet sensing drive arrangement, be equipped with range unit between ultraviolet sensing drive arrangement and the ultraviolet sensing device, and range unit's both ends are connected ultraviolet sensing device and ultraviolet sensing drive arrangement respectively, and inside walking the line of ultraviolet sensing drive arrangement and passing through range unit, display device is installed to ultraviolet sensing drive arrangement's tip.
Preferably, the ultraviolet sensing device comprises an ultraviolet sensing probe, a solar blind type ultraviolet detection sensor, a signal processing module, a distance measuring probe, a temperature and humidity detecting module and a power supply module.
Preferably, the ultraviolet sensing device internally comprises an operation module, a display module and a human-computer interaction module.
Preferably, the ultraviolet sensing driving device comprises an ultraviolet driving circuit inside, and the ultraviolet sensing driving device and the ultraviolet sensing device are connected through electromagnetic signals.
Preferably, an ultraviolet sensor anode and a photocathode are arranged inside the ultraviolet sensing device, the photocathode is made of an ultraviolet material, and the ultraviolet sensor anode and the photocathode are combined to form the ultraviolet sensing probe.
Advantageous effects
The utility model discloses in, adopt high sensitivity's day blind type ultraviolet sensor can non-contact measurement high-tension apparatus corona discharge in the power density of ultraviolet pulse, through the surface electric field of power density judgement equipment, combine environmental parameter to confirm whether the circuit is electrified. The temperature and humidity detection module monitors and corrects data of environmental conditions in real time, and the distance measuring probe can quickly and accurately judge the distance between the measuring instrument and the equipment to be detected, and visually aligns the equipment to be detected to prevent error detection.
The utility model discloses in, non-contact electroscope is different from traditional electroscope mode, need not with high tension transmission line direct contact, just can realize testing the electricity operation to the non-contact electroscope that has small-size, portable, the accurate characteristics of result can bring huge practical value and economic benefits.
Drawings
FIG. 1 is a three-dimensional structure of the present invention;
fig. 2 is a control block diagram of the present invention;
fig. 3 is a driving circuit diagram of the ultraviolet sensor of the present invention;
fig. 4 is a structural simulation diagram of the present invention.
Illustration of the drawings:
1. an ultraviolet sensing device; 2. a distance measuring device; 3. an ultraviolet sensing driving device; 4. a display device.
Detailed Description
In order to make the technical means, creation features, achievement objects and functions of the present invention easy to understand, the present invention will be further explained below with reference to the following embodiments and the accompanying drawings. Based on the embodiments in the embodiment, those skilled in the art can obtain other embodiments without making creative efforts, and all of them belong to the protection scope of the present invention.
Specific embodiments of the present invention will be described below with reference to the accompanying drawings.
The specific embodiment is as follows:
referring to fig. 1-4, the non-contact electricity testing device for the power distribution network comprises an ultraviolet sensing device 1, an ultraviolet sensing driving device 3 is arranged on the side surface of the ultraviolet sensing device 1, a distance measuring device 2 is arranged between the ultraviolet sensing driving device 3 and the ultraviolet sensing device 1, two ends of the distance measuring device 2 are respectively connected with the ultraviolet sensing device 1 and the ultraviolet sensing driving device 3, the inner portion of the ultraviolet sensing driving device 3 is wired to pass through the inner portion of the distance measuring device 2, and a display device 4 is installed at the end portion of the ultraviolet sensing driving device 3.
The solar blind type ultraviolet sensor with high sensitivity can be used for measuring the power density of ultraviolet pulses in corona discharge of high-voltage equipment in a non-contact manner, and the surface electric field of the equipment is judged according to the power density and is combined with environmental parameters, so that whether a circuit is electrified or not is confirmed. The temperature and humidity detection module monitors and corrects data of the environmental condition in real time, and the distance measuring probe can quickly and accurately judge the distance between the measuring instrument and the equipment to be detected and visually align the equipment to be detected so as to prevent misdetection.
The parts such as high-voltage transmission lines, metal clamps, line joints and the like can generate continuous corona discharge under high voltage, and discharge which is difficult to see by naked eyes is also generated for supporting high-voltage equipment, so whether the lines and appliances are electrified or not can be judged according to the discharge. When corona discharge occurs on the surface of the high-voltage device, ultraviolet rays, sound waves, and the like are radiated. Sunlight also contains ultraviolet rays, the part with the wavelength of more than 280nm is almost completely absorbed by ozone in the atmosphere, and the wavelength range with the wavelength of less than 280nm and more than 200nm is called a solar blind spectral region. The method comprises the steps of firstly filtering ultraviolet light through an ultraviolet solar blind spectrum filter with the bandwidth of 240-280nm, then entering the ultraviolet sensor, converting the ultraviolet light into photocurrent pulses for output, processing the photocurrent pulses to obtain a sharp pulse signal, counting the number of discharge pulses measured in unit time to determine the discharge intensity, providing a basis for monitoring the electrified state of the high-voltage transmission line, detecting the corona discharge of the transmission line, namely representing the electrified state of the high-voltage equipment by using ultraviolet radiation.
The non-contact electroscope is different from the traditional electroscope mode, can realize electroscope operation without directly contacting with a high-voltage transmission line, and has the characteristics of small size, portability and accurate result, and can bring huge practical value and economic benefit.
The second embodiment is as follows:
referring to fig. 2, ultraviolet sensing device 1 is inside including ultraviolet sensing probe, solar blind type ultraviolet detection sensor, signal processing module, the range finding probe, temperature and humidity detection module and power module, signal processing module is inside including the operation module, display module and man-machine interaction module, the inside ultraviolet drive circuit that includes of ultraviolet sensing drive arrangement 3, and pass through electromagnetic signal connection between ultraviolet sensing drive arrangement 3 and the ultraviolet sensing device 1, ultraviolet sensing device 1 is inside to be equipped with ultraviolet sensor anode and photocathode, and photocathode makes through the ultraviolet material, and ultraviolet sensor anode and photocathode combination form ultraviolet sensing probe.
The working principle of the ultraviolet detection module is as follows: based on the photoelectric emission effect of metal and the electron current propagation theory. The photoelectric cathode is made of ultraviolet material sensitive only to ultraviolet rays, and emits photoelectrons under the irradiation of ultraviolet rays, after a voltage is applied between the anode and the photoelectric cathode of the sensor, an electric field is established between the anode and the photoelectric cathode, when the ultraviolet rays are irradiated on the surface of the photoelectric cathode, if incident light energy is greater than the work function of the surface of the cathode, a photoelectric emission effect is generated, photoelectrons are emitted, the phenomenon is called electron heavy current, because the electron yield of a pure metal cathode is extremely low, special gas is required to be filled in the ultraviolet sensor, electron output is increased through heavy current discharge, the photoelectrons collide with surrounding gas molecules at an extremely high speed under the action of the electric field, so that the photoelectrons are ionized into electrons and positive ions, new electrons generated by ionization continuously ionize the surrounding gas molecules, finally irradiate to the anode, the positive ions generated by ionization are accelerated to collide with the photoelectric cathode under the action of the electric field, so that more electrons are generated, the process is circulated, and a large current is rapidly formed between the anode and the photoelectric cathode, and the discharge is generated.
The third concrete embodiment:
referring to fig. 3, in order to correctly detect the ultraviolet rays, the driving circuit should have an arc extinguishing function to prevent the discharge current from being self-sustained. The working principle is as follows: in the absence of UV light, the sensor does not discharge and the anode potential is equal to the applied operating voltage. When ultraviolet rays are incident, the sensor discharges, current is provided by the charging capacitor, instantaneous current is generated on the resistor, and a pulse voltage is output; during discharge, the electric quantity of the capacitor is reduced, the anode potential is gradually reduced, and the discharge is suspended when the anode potential is lower than the discharge maintaining voltage. After the discharge is stopped, the power supply gradually charges the capacitor, the anode potential is increased, and if ultraviolet light irradiates on the sensor, the discharge is performed again after the anode potential reaches the discharge starting voltage. After the detection data is processed by the ultraviolet sensor, the distance and the vertical condition of the power transmission line are fed back to the display module, and an operator finely adjusts the distance and the vertical condition according to the feedback condition, so that the electromagnetic induction detection module is more accurate.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. Distribution network non-contact tests electric installation, its characterized in that: including ultraviolet sensing device (1), the side of ultraviolet sensing device (1) is equipped with ultraviolet sensing drive arrangement (3), be equipped with between ultraviolet sensing drive arrangement (3) and ultraviolet sensing device (1) range unit (2), and the both ends of range unit (2) connect ultraviolet sensing device (1) and ultraviolet sensing drive arrangement (3) respectively, and inside walking the line of ultraviolet sensing drive arrangement (3) and passing through range unit (2), display device (4) are installed to the tip of ultraviolet sensing drive arrangement (3).
2. The non-contact electricity testing device for the power distribution network according to claim 1, wherein: the ultraviolet sensing device (1) comprises an ultraviolet sensing probe, a solar blind type ultraviolet detection sensor, a signal processing module, a distance measuring probe, a temperature and humidity detection module and a power supply module.
3. The non-contact electricity testing device for the power distribution network according to claim 2, wherein: the ultraviolet sensing device (1) comprises an operation module, a display module and a man-machine interaction module.
4. The non-contact electricity testing device for the power distribution network according to claim 2, wherein: the ultraviolet sensing driving device (3) comprises an ultraviolet driving circuit inside, and the ultraviolet sensing driving device (3) is connected with the ultraviolet sensing device (1) through electromagnetic signals.
5. The non-contact electricity testing device for the power distribution network according to claim 2, wherein: an ultraviolet sensor anode and a photocathode are arranged inside the ultraviolet sensing device (1), the photocathode is made of an ultraviolet material, and the ultraviolet sensor anode and the photocathode are combined to form an ultraviolet sensing probe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222862928.3U CN218767089U (en) | 2022-10-28 | 2022-10-28 | Non-contact electricity testing device for power distribution network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222862928.3U CN218767089U (en) | 2022-10-28 | 2022-10-28 | Non-contact electricity testing device for power distribution network |
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| Publication Number | Publication Date |
|---|---|
| CN218767089U true CN218767089U (en) | 2023-03-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222862928.3U Active CN218767089U (en) | 2022-10-28 | 2022-10-28 | Non-contact electricity testing device for power distribution network |
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| Country | Link |
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| CN (1) | CN218767089U (en) |
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2022
- 2022-10-28 CN CN202222862928.3U patent/CN218767089U/en active Active
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