CN111103514A - Ring main unit discharge detection device - Google Patents
Ring main unit discharge detection device Download PDFInfo
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- CN111103514A CN111103514A CN201911247736.8A CN201911247736A CN111103514A CN 111103514 A CN111103514 A CN 111103514A CN 201911247736 A CN201911247736 A CN 201911247736A CN 111103514 A CN111103514 A CN 111103514A
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- ultraviolet
- blue light
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- photoelectric detector
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1218—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing using optical methods; using charged particle, e.g. electron, beams or X-rays
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- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
- Testing Relating To Insulation (AREA)
Abstract
The invention discloses a ring main unit discharge detection device which comprises a shell, an ultraviolet filter, a blue light filter, a first photoelectric detector, a second photoelectric detector, an ultraviolet bias circuit, a blue light bias circuit and a dual-channel data acquisition circuit, wherein the first photoelectric detector, the second photoelectric detector, the ultraviolet bias circuit, the blue light bias circuit and the dual-channel data acquisition circuit are arranged in the shell, the peak wavelength of the ultraviolet filter is 340nm, the bandwidth is 10nm, the peak wavelength of the blue light filter is 480nm, the bandwidth is 10nm, a first opening and a second opening are formed in the top of the shell, and the ultraviolet filter is arranged at. The blue light filter is arranged at the second opening, the first photoelectric detector is positioned right below the ultraviolet filter, the second photoelectric detector is positioned right below the blue light filter, the first photoelectric detector is connected with the ultraviolet bias circuit, the second photoelectric detector is connected with the blue light bias circuit, and the ultraviolet bias circuit and the blue light bias circuit are respectively connected with the dual-channel data acquisition circuit; the method has the advantages that the discharge fault can be detected in time, and the safety is improved.
Description
Technical Field
The invention relates to a discharge detection device, in particular to a ring main unit discharge detection device.
Background
The coastal area environment humidity is higher usually, so cause the interior humidity of looped netowrk cabinet too high very easily, and then influence the interior insulation distance of looped netowrk cabinet, cause looped netowrk cabinet discharge fault easily. If the discharge fault of the ring main unit cannot be found in time, the ring main unit can be developed freely, finally, an insulation short circuit and a high-voltage ground short circuit can be caused, so that the ring main unit is caused to burn and explode, and the more serious condition is that the ring main unit is burnt and destroyed around due to the burning and exploding of one ring main unit.
The discharge process of the ring main unit is a gradual change process, and from early corona discharge to final short circuit arc discharge, days and even months are usually spent. The discharge stage of the ring main unit is divided into an early stage, a middle stage and a late stage, wherein the discharge usually generates ultraviolet light in the early stage, blue light is generated in the middle stage, and the late stage is an arc discharge stage which generates strong red light or yellow light. And the discharge process of looped netowrk cabinet evolves to the later stage from the middle stage and can experience several days time usually, if can find its discharge fault when the looped netowrk cabinet discharges and gets into the middle stage at the latest, then can catch up with before the looped netowrk cabinet burning explosion at least and overhaul for the looped netowrk cabinet and provide sufficient time, and then can effectively prevent the burning explosion that the looped netowrk cabinet later stage leads to.
However, the ring main unit is mainly maintained in a manual regular maintenance mode at present due to limitation of current manpower and material resources, and the discharge fault of the ring main unit is difficult to find in time. Therefore, the ring main unit discharge detection device which can detect the discharge fault of the ring main unit in time and improve the use safety of the ring main unit has important significance,
disclosure of Invention
The invention aims to solve the technical problem of providing a discharge detection device of a ring main unit, which can detect the discharge fault of the ring main unit in time and improve the use safety of the ring main unit.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a looped netowrk cabinet detection device that discharges, includes casing, ultraviolet filter, blue light filter, first photoelectric detector, second photoelectric detector, ultraviolet biasing circuit, blue light biasing circuit and binary channels data acquisition circuit, the peak wavelength of ultraviolet filter be 340nm, the bandwidth is 10nm, the peak wavelength of blue light filter be 480nm, the bandwidth is 10nm, first photoelectric detector, second photoelectric detector, ultraviolet biasing circuit, blue light biasing circuit and binary channels data acquisition circuit all set up in the casing, the parallel spaced apart first opening and the second opening that are equipped with rather than communicating separately in casing top, ultraviolet filter install first opening part will first opening seal, blue light filter install the second opening part will the second opening seal, first photoelectric detector be located ultraviolet filter under, second photoelectric detector be located blue light filter under, first photoelectric detector with ultraviolet biasing circuit connect, second photoelectric detector with blue light biasing circuit connect, ultraviolet biasing circuit blue light biasing circuit respectively with binary channels data acquisition circuit connect.
The ultraviolet filter and the blue light filter are respectively realized by adopting an interference coating filter.
The first photoelectric detector detects whether ultraviolet light waves are generated in the ring main unit in real time, corresponding signals are generated according to detection results and output to the ultraviolet biasing circuit, the ultraviolet biasing circuit generates corresponding analog electric signals after biasing processing is carried out on the signals output by the first photoelectric detector, the second photoelectric detector detects whether blue light is generated in the ring main unit in real time, corresponding signals are generated according to the detection results and output to the blue light biasing circuit, the blue light biasing circuit generates corresponding analog electric signals after biasing processing is carried out on the signals output by the second photoelectric detector and outputs the signals, the double-channel data acquisition circuit periodically acquires the analog electric signals output by the ultraviolet biasing circuit and the analog electric signals output by the blue light biasing circuit, and the double-channel data acquisition circuit periodically acquires the analog electric signals output by the ultraviolet biasing circuit and the analog electric signals output by the blue light biasing circuit according to the analog electric signals output by the ultraviolet biasing circuit and the analog electric signals output by the blue light biasing circuit The electric signal judges whether the first photoelectric detector detects ultraviolet light or not and whether the second photoelectric detector detects blue light or not, then generates a corresponding digital signal according to a judgment result and sends the digital signal to the data receiving terminal equipment, so that the discharge detection of the ring main unit is realized, and the sampling period of the dual-channel data acquisition circuit is 1 minute.
The dual-channel data acquisition circuit comprises a data acquisition processor and a 433M wireless module, the data acquisition processor is respectively connected with the ultraviolet bias circuit and the blue light bias circuit, the 433M wireless module is connected with the data acquisition processor, and the 433M wireless module is communicated with the data receiving terminal equipment through a wireless network.
Compared with the prior art, the looped network cabinet discharge detection device has the advantages that the looped network cabinet discharge detection device is constructed by the shell, the ultraviolet light filter, the blue light filter, the first photoelectric detector, the second photoelectric detector, the ultraviolet bias circuit, the blue light bias circuit and the dual-channel data acquisition circuit, the peak wavelength of the ultraviolet light filter is 340nm, the bandwidth is 10nm, the peak wavelength of the blue light filter is 480nm, the bandwidth is 10nm, the first photoelectric detector, the second photoelectric detector, the ultraviolet bias circuit, the blue light bias circuit and the dual-channel data acquisition circuit are all arranged in the shell, the top of the shell is provided with a first opening and a second opening which are respectively communicated with the inside of the shell in parallel at intervals, the ultraviolet light filter is arranged at the first opening to seal the first opening, the blue light filter is arranged at the second opening to seal the second opening, and the first photoelectric detector is positioned right below the ultraviolet light filter, the second photoelectric detector is positioned right below the blue light filter, the first photoelectric detector is connected with the ultraviolet bias circuit, the second photoelectric detector is connected with the blue light bias circuit, the ultraviolet bias circuit and the blue light bias circuit are respectively connected with the dual-channel data acquisition circuit, the first photoelectric detector detects whether ultraviolet light waves are generated in the ring main unit in real time and generates corresponding signals according to detection results and outputs the corresponding signals to the ultraviolet bias circuit, the ultraviolet bias circuit generates corresponding analog electric signal output after carrying out bias processing on the signals output by the first photoelectric detector, the second photoelectric detector detects whether blue light is generated in the ring main unit in real time and generates corresponding signals according to the detection results and outputs the corresponding signals to the blue light bias circuit, the blue light bias circuit generates corresponding analog electric signal output after carrying out bias processing on the signals output by the second photoelectric detector, and the dual-channel data acquisition circuit periodically acquires analog electric signals output by the ultraviolet bias circuit and outputs by the blue light bias circuit The ultraviolet filter and the first photoelectric detector are matched to use and can detect ultraviolet light generated in the early stage of discharge of the ring main unit, the blue light filter and the second photoelectric detector are matched to use and can detect blue light generated in the middle stage of discharge of the ring main unit, a ring main unit manager can communicate with the dual-channel data acquisition circuit through the data receiving terminal device arranged in a ring main unit management room to timely acquire a discharge process when the ring main unit generates a discharge fault, and corresponding maintenance measures are taken according to the method, so that the severe consequences such as combustion and explosion caused by the fact that the ring main unit enters the later stage of discharge are effectively avoided, and the use safety of the ring main unit is improved.
Drawings
Fig. 1 is a structural diagram of a ring main unit discharge detection device of the present invention.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
Example (b): as shown in fig. 1, a ring main unit discharge detection device includes a housing 1, an ultraviolet filter 2, a blue light filter 3, a first photodetector 4, a second photodetector 5, an ultraviolet bias circuit 6, a blue light bias circuit 7 and a dual-channel data acquisition circuit 8, wherein the peak wavelength of the ultraviolet filter 2 is 340nm, the bandwidth is 10nm, the peak wavelength of the blue light filter 3 is 480nm, the bandwidth is 10nm, the first photodetector 4, the second photodetector 5, the ultraviolet bias circuit 6, the blue light bias circuit 7 and the dual-channel data acquisition circuit 8 are all disposed in the housing 1, a first opening and a second opening respectively communicated with the top of the housing 1 are disposed in parallel at intervals, the ultraviolet filter 2 is mounted at the first opening to close the first opening, the blue light filter 3 is mounted at the second opening to close the second opening, the first photodetector 4 is located right below the ultraviolet filter 2, second photoelectric detector 5 is located blue light filter 3 under, and first photoelectric detector 4 is connected with ultraviolet biasing circuit 6, and second photoelectric detector 5 is connected with blue light biasing circuit 7, and ultraviolet biasing circuit 6, blue light biasing circuit 7 are connected with binary channels data acquisition circuit 8 respectively.
In this embodiment, the ultraviolet filter 2 and the blue light filter 3 are respectively implemented by an interference coating filter, and the ultraviolet bias circuit 6 and the blue light bias circuit 7 are respectively implemented by a currently mature voltage bias circuit.
In this embodiment, the first photodetector 4 detects whether an ultraviolet light wave is generated in the ring main unit in real time, and generates a corresponding signal according to a detection result and outputs the corresponding signal to the ultraviolet bias circuit 6, the ultraviolet bias circuit 6 generates a corresponding analog electrical signal to output after performing bias processing on a signal output by the first photodetector 4, the second photodetector 5 detects whether a blue light is generated in the ring main unit in real time, and generates a corresponding signal according to the detection result and outputs the corresponding signal to the blue light bias circuit 7, the blue light bias circuit 7 generates a corresponding analog electrical signal to output after performing bias processing on a signal output by the second photodetector 5, the dual-channel data acquisition circuit 8 periodically acquires the analog electrical signal output by the ultraviolet bias circuit 6 and the analog electrical signal output by the blue light bias circuit 7, and determines whether the first photodetector 4 detects an ultraviolet light and whether the second photodetector 4 detects an ultraviolet light according to the analog electrical signal output by the ultraviolet bias circuit 6 and the analog electrical signal output by the Whether the electric detector 5 detects blue light or not is judged, then a corresponding digital signal is generated according to a judgment result and sent to the data receiving terminal equipment, discharge detection of the ring main unit is achieved, and the sampling period of the dual-channel data acquisition circuit 8 is 1 minute.
In this embodiment, the dual-channel data acquisition circuit 8 includes a data acquisition processor and a 433M wireless module, the data acquisition processor is connected with the ultraviolet bias circuit 6 and the blue light bias circuit 7 respectively, the 433M wireless module is connected with the data acquisition processor, and the 433M wireless module communicates with the data receiving terminal device through a wireless network.
Claims (4)
1. The utility model provides a looped netowrk cabinet detection device that discharges which characterized in that includes casing, ultraviolet filter, blue light filter, first photoelectric detector, second photoelectric detector, ultraviolet biasing circuit, blue light biasing circuit and binary channels data acquisition circuit, the peak wavelength of ultraviolet filter be 340nm, the bandwidth is 10nm, the peak wavelength of blue light filter be 480nm, the bandwidth is 10nm, first photoelectric detector, second photoelectric detector, ultraviolet biasing circuit, blue light biasing circuit and binary channels data acquisition circuit all set up in the casing, the parallel spaced apart first opening and the second opening that are equipped with rather than inside and communicate with each other of casing top, ultraviolet filter install first opening part with first opening seal, blue light filter install the second opening part with the second opening seal, first photoelectric detector be located ultraviolet filter under, second photoelectric detector be located blue light filter under, first photoelectric detector with ultraviolet biasing circuit connect, second photoelectric detector with blue light biasing circuit connect, ultraviolet biasing circuit blue light biasing circuit respectively with binary channels data acquisition circuit connect.
2. The electrical discharge detection device of a ring main unit as claimed in claim 1, wherein the ultraviolet filter and the blue light filter are respectively implemented by an interference coating filter.
3. The ring main unit discharge detection device according to claim 1, wherein the first photo detector detects whether ultraviolet light waves are generated in the ring main unit in real time, and generates a corresponding signal according to a detection result to output the signal to the ultraviolet bias circuit, the ultraviolet bias circuit generates a corresponding analog electrical signal to output after performing bias processing on the signal output by the first photo detector, the second photo detector detects whether blue light is generated in the ring main unit in real time, and generates a corresponding signal according to the detection result to output the signal to the blue bias circuit, the blue bias circuit generates a corresponding analog electrical signal to output after performing bias processing on the signal output by the second photo detector, the dual-channel data acquisition circuit periodically acquires the analog electrical signal output by the ultraviolet bias circuit and the analog electrical signal output by the blue bias circuit, and whether the first photoelectric detector detects ultraviolet light and whether the second photoelectric detector detects blue light are judged according to the analog electric signal output by the ultraviolet biasing circuit and the analog electric signal output by the blue light biasing circuit, then a corresponding digital signal is generated according to a judgment result and sent to data receiving terminal equipment, discharge detection of the ring main unit is realized, and the sampling period of the dual-channel data acquisition circuit is 1 minute.
4. The ring main unit discharge detection device according to claim 1, wherein the dual-channel data acquisition circuit includes a data acquisition processor and a 433M wireless module, the data acquisition processor is connected to the UV bias circuit and the blue light bias circuit, the 433M wireless module is connected to the data acquisition processor, and the 433M wireless module communicates with the data receiving terminal device through a wireless network.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911247736.8A CN111103514A (en) | 2019-12-09 | 2019-12-09 | Ring main unit discharge detection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911247736.8A CN111103514A (en) | 2019-12-09 | 2019-12-09 | Ring main unit discharge detection device |
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| CN111103514A true CN111103514A (en) | 2020-05-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112255513A (en) * | 2020-10-10 | 2021-01-22 | 广东电网有限责任公司广州供电局 | Insulator pollution flashover monitoring device and method |
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2019
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112255513A (en) * | 2020-10-10 | 2021-01-22 | 广东电网有限责任公司广州供电局 | Insulator pollution flashover monitoring device and method |
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