CN105425117A - UHF partial discharge sensor accuracy detection system - Google Patents
UHF partial discharge sensor accuracy detection system Download PDFInfo
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- CN105425117A CN105425117A CN201510638166.0A CN201510638166A CN105425117A CN 105425117 A CN105425117 A CN 105425117A CN 201510638166 A CN201510638166 A CN 201510638166A CN 105425117 A CN105425117 A CN 105425117A
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Abstract
The invention relates to the technical field of high-voltage power transformation, especially relates to a UHF partial discharge sensor accuracy detection system, and specifically relates to a UHF sensor accuracy detection system of GIS partial discharge on-line monitoring equipment. The system comprises a signal generator, the signal generator is connected with an oscilloscope and a UHF sensor A, a UHF sensor B is connected with a portable host, and the UHF sensor A, the UHF sensor B, and a to-be-detected sensor are simultaneously fixed on a fixing clamp. According to the system, one UHF signal generator and two same UHF sensors are additionally provided so that a partial discharge signal emission antenna can be simulated, and network access detection of the UHF sensors is realized; and the structure is simple and reasonable, the usage is safe, the operation is easy, and the detection precision can be substantially improved.
Description
Technical field
The present invention relates to high-voltage transforming technical field, particularly relate to a kind of UHF local discharge sensor accuracy detection system, specifically a kind of type UHF sensor accuracy detection system of GIS partial discharge on-line monitoring equipment.
Background technology
Partial discharge monitoring is the most effective GIS state monitoring method of generally acknowledging in the industry at present, compared with the charge method of routine, ultra-high frequency signal there is no method calibration, but actual use experience proves, the method can find defect, can at the scene, measure under any system voltage.Each shelf depreciation collector connects a digitizing ultrahigh frequency-type UHF sensor by concentric cable, and the accuracy of monitoring result depends primarily on the sensitivity of type UHF sensor to Partial discharge signal, therefore, is necessary that carrying out networking to type UHF sensor detects.
Summary of the invention
The object of the present invention is to provide a kind of UHF local discharge sensor accuracy detection system, its objective is and provide a kind of while can completing sensor detection, the detection system of the change of the collection of illustrative plates of the different Partial discharge signal of amplitude can be seen by portable main machine.By analog transmissions local discharge signal, type UHF sensor to be checked is detected and receives signal analysis, contrast standard testing result reaches the object that type UHF sensor accuracy detects.
To achieve the above object of the invention, the technical solution adopted in the present invention is:
A kind of UHF local discharge sensor accuracy detection system, comprise signal generator, wherein signal generator is connected with type UHF sensor A with oscillograph respectively, and type UHF sensor B is connected with portable main machine; Type UHF sensor A and type UHF sensor B and sensor to be measured are fixed on geometrical clamp simultaneously.
Described signal generator is provided with signal output part A, signal output part B and pulse width and arranges button, can as required, and combination setting range is at the wide pulse signal of 50ns-1050ns; Also be provided with knob.
Described type UHF sensor A is connected on the signal output part A of signal generator, and type UHF sensor B carries out reference as the standard type UHF sensor detected.
Described type UHF sensor A and type UHF sensor B, sensor to be measured are connected on geometrical clamp.
Described sensor to be measured and type UHF sensor B are connected in the Aviation Connector in portable main machine.
Described oscillograph is wide band oscilloscope tube, and before adding pulse to type UHF sensor, whether the pulse sent in order to checking signal generator meets the requirements, and first just pulse signal output end A is connected to oscillographic input end.
Described formula of taking main frame there is multiple aviation plug, the detection signal of different sensors can be inputted simultaneously.
Be provided with special Analysis of Partial Discharge process software in described portable main machine, special Analysis of Partial Discharge process software mainly comprises signal phase, peak value statistics, anti-interference, electric discharge spectrum extracts and generation, diagnosis, discharge information are preserved and management.
Advantage of the present invention and beneficial effect are:
The invention provides a kind of UHF local discharge sensor accuracy detection system, owing to adding a UHF signal generator type UHF sensor identical with two, local discharge signal emitting antenna can be simulated, thus realize detecting the networking of type UHF sensor.It is simple and reasonable, use safety, is easy to operation, and accuracy of detection can be made to be significantly improved.
Accompanying drawing explanation
Fig. 1 is detection system structural representation of the present invention.
In figure: signal generator 1, oscillograph 2, type UHF sensor A3, type UHF sensor B4, geometrical clamp 5, portable main machine 6, signal output part A7, signal output part B8, knob 9, Aviation Connector 10.
Embodiment
Below in conjunction with drawings and Examples, will be described in detail preferred embodiment of the present invention.
The present invention is a kind of UHF local discharge sensor accuracy detection system, as shown in Figure 1, comprises a signal generator 1, ultrahigh frequency pulses can be sent, an oscillograph 2, two identical type UHF sensor A3 and type UHF sensor B4, geometrical clamp 5 and portable main machine 6.
Wherein, signal generator 1 is connected with type UHF sensor A3 with oscillograph 2 respectively by connecting line, and type UHF sensor B4 is connected in the Aviation Connector 10 in portable main machine 6 by connecting line; Type UHF sensor A3 and type UHF sensor B4 and sensor to be measured are fixed on geometrical clamp 5 simultaneously.
Described signal generator 1 is provided with signal output part A7 and signal output part B8, six pulse widths arrange button, can be as required, combination setting range is at the wide pulse signal of 50ns-1050ns, a knob 9, be used for adjusting pulse height, be understandable that signal generator is prior art, can select as required.Described signal generator, can send ultrahigh frequency pulses, and be injected in type UHF sensor A3 and type UHF sensor B4, type UHF sensor just can be used as emitting antenna.
Described two identical type UHF sensor A3 and type UHF sensor B4, wherein type UHF sensor A3 is connected on the signal output part A7 of signal generator 1, apply a suitable width pulse to as required type UHF sensor A3, a wherein emitting antenna as simulation Partial discharge signal, analog machine shelf depreciation, change pulse amplitude at any time, signal is detected.Another type UHF sensor B4 carries out reference as the standard type UHF sensor detected.Be understandable that, different according to the signal of sensor to be measured, selected emitting antenna is also different, selects according to actual conditions.
Described geometrical clamp 5 be used to using as emitting antenna type UHF sensor A3 respectively with standard type UHF sensor B4, sensor to be measured is relative is fixed on correct position, alignment clamping, reduce the metrical error because two sensor relative distances and change in location produce, be understandable that, the design of geometrical clamp 5 is not fixed, but function is clear and definite, therefore can design as the case may be.
Described taking on formula main frame 6 has multiple aviation plug, can input the detection signal of different sensors simultaneously.
In described portable main machine 6, special Analysis of Partial Discharge process software is installed, special Analysis of Partial Discharge process software mainly comprises signal phase, peak value statistics, anti-interference, spectrum of discharging extracts and generation, diagnosis, discharge information preservation and management etc., and this software can be seen signal collection of illustrative plates and the testing result after analyzing.Special Analysis of Partial Discharge process software is further processed the data that digitizing uhf sensor is uploaded, sensor to be measured and standard type UHF sensor B4 are connected in the Aviation Connector 10 in portable main machine 6, after signal generator 1 couple of type UHF sensor A3 sends pulse signal, the testing result after this software interface just can see the signal collection of illustrative plates that sensor to be measured detects and spectrum analysis.
Whether described oscillograph 2 is wide band oscilloscope tubes, before adding pulse to type UHF sensor, first pulse signal output end A7 is connected to the input end of oscillograph 2, carry out the pulse that checking signal generator 1 sends and meet the requirements.
Should be understood that, to those skilled in the art, can be improved according to the above description and convert, and all these improve and convert the protection domain that all should belong to claims of the present invention.
Claims (8)
1. a UHF local discharge sensor accuracy detection system, comprise signal generator (1), it is characterized in that: signal generator (1) respectively with oscillograph (2) and type UHF sensor A(3) be connected, type UHF sensor B(4) be connected with portable main machine (6); Type UHF sensor A(3) and type UHF sensor B(4) and sensor to be measured be fixed on geometrical clamp (5) simultaneously.
2. a kind of UHF local discharge sensor accuracy detection system according to claim 1, it is characterized in that: described signal generator (1) is provided with signal output part A(7), signal output part B(8) and pulse width button is set, can as required, combination setting range is at the wide pulse signal of 50ns-1050ns; Also be provided with knob (9).
3. a kind of UHF local discharge sensor accuracy detection system according to claim 1, it is characterized in that: described type UHF sensor A(3) be connected to the signal output part A(7 of signal generator (1)) on, type UHF sensor B(4) carry out reference as the standard type UHF sensor detected.
4. a kind of UHF local discharge sensor accuracy detection system according to claim 1, is characterized in that: described type UHF sensor A(3) with type UHF sensor B(4), sensor to be measured is connected on geometrical clamp (5).
5. a kind of UHF local discharge sensor accuracy detection system according to claim 1, is characterized in that: described sensor to be measured and type UHF sensor B(4) be connected in portable main machine (6) Aviation Connector (10) on.
6. a kind of UHF local discharge sensor accuracy detection system according to claim 1, it is characterized in that: described oscillograph (2) is wide band oscilloscope tube, before pulse is added to type UHF sensor, whether the pulse sent in order to checking signal generator (1) meets the requirements, first just pulse signal output end A(7) be connected to the input end of oscillograph (2).
7. a kind of UHF local discharge sensor accuracy detection system according to claim 1, is characterized in that: described formula of taking main frame (6) has multiple aviation plug, can input the detection signal of different sensors simultaneously.
8. a kind of UHF local discharge sensor accuracy detection system according to claim 1, it is characterized in that: be provided with special Analysis of Partial Discharge process software in described portable main machine (6), special Analysis of Partial Discharge process software mainly comprises signal phase, peak value statistics, anti-interference, electric discharge spectrum extracts and generation, diagnosis, discharge information are preserved and management.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510638166.0A CN105425117A (en) | 2015-10-08 | 2015-10-08 | UHF partial discharge sensor accuracy detection system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510638166.0A CN105425117A (en) | 2015-10-08 | 2015-10-08 | UHF partial discharge sensor accuracy detection system |
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| CN105425117A true CN105425117A (en) | 2016-03-23 |
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| CN201510638166.0A Pending CN105425117A (en) | 2015-10-08 | 2015-10-08 | UHF partial discharge sensor accuracy detection system |
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Cited By (2)
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| CN112363100A (en) * | 2020-11-11 | 2021-02-12 | 贵州电网有限责任公司 | Fault detection device for state monitoring sensor |
| CN113960520A (en) * | 2021-10-27 | 2022-01-21 | 南方电网数字电网研究院有限公司 | GIS partial discharge detection method, system and verification device thereof |
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| CN112363100A (en) * | 2020-11-11 | 2021-02-12 | 贵州电网有限责任公司 | Fault detection device for state monitoring sensor |
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| CN113960520A (en) * | 2021-10-27 | 2022-01-21 | 南方电网数字电网研究院有限公司 | GIS partial discharge detection method, system and verification device thereof |
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Application publication date: 20160323 |