CN204666773U - A kind of Portable PD On-Line superfrequency and ultrasonic signal pick-up unit - Google Patents

A kind of Portable PD On-Line superfrequency and ultrasonic signal pick-up unit Download PDF

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Publication number
CN204666773U
CN204666773U CN201520341595.7U CN201520341595U CN204666773U CN 204666773 U CN204666773 U CN 204666773U CN 201520341595 U CN201520341595 U CN 201520341595U CN 204666773 U CN204666773 U CN 204666773U
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China
Prior art keywords
superfrequency
operational amplifier
sensor
metallic shield
portable
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CN201520341595.7U
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Chinese (zh)
Inventor
梁晓亮
吴耀峰
康久兴
陶鹤
张灿煜
郑文
赵明双
亢可
马永春
李全东
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Nanjing Jiashite Electrical Technology Co Ltd
State Grid Corp of China SGCC
State Grid Jilin Electric Power Corp
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Nanjing Jiashite Electrical Technology Co Ltd
State Grid Corp of China SGCC
State Grid Jilin Electric Power Corp
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Application filed by Nanjing Jiashite Electrical Technology Co Ltd, State Grid Corp of China SGCC, State Grid Jilin Electric Power Corp filed Critical Nanjing Jiashite Electrical Technology Co Ltd
Priority to CN201520341595.7U priority Critical patent/CN204666773U/en
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Abstract

The utility model discloses a kind of Portable PD On-Line superfrequency and ultrasonic signal pick-up unit, coupling mechanism, superfrequency sensor, matched impedance, first operational amplifier is arranged in metallic shield, the interference of extraneous high-frequency signal can be stopped, improve accuracy of detection, and add ultrasonic sensor, superfrequency sensor is coordinated accurately to locate local discharge signal, good positioning effect, also be provided with GPRS telecommunication circuit, data transmission is carried out with remote terminal, realize remote testing, reduce the inconvenience of field wiring, easy to use, have a good application prospect.

Description

A kind of Portable PD On-Line superfrequency and ultrasonic signal pick-up unit
Technical field
The utility model belongs to electric signal detection technique field, is specifically related to a kind of Portable PD On-Line superfrequency and ultrasonic signal pick-up unit.
Background technology
Closed gas insulation in combined electric appliance (Gas Insulated Switchgear, GIS), has little, the good insulating property of floor area and is widely used in electrical network.But due to its totally enclosed design feature, once there is accident, the consequence score caused is much serious from opening-type equipment, and its fault restoration is particularly complicated.Partial Discharge Detection, contributes to the defect finding GIS device enclosure interior, but, current shelf depreciation on-line testing equipment, is easily subject to the interference of extraneous high-frequency signal, affects the accuracy of detection of shelf depreciation, simple superfrequency sensor detects local discharge signal, poor effect, and, also there is no remote test device, all adopt on-the-spot test, wiring is complicated, carries inconvenience, is not easy to use.
Utility model content
The technical matters that the utility model solves overcomes shelf depreciation on-line testing equipment in prior art, simple superfrequency sensor detects local discharge signal, easily be subject to the interference of extraneous high-frequency signal, poor effect, and, also do not have remote test device, on-the-spot test wiring is complicated, carries the problem of inconvenience.
In order to solve the problems of the technologies described above, the technical scheme that the utility model adopts is:
A kind of Portable PD On-Line superfrequency and ultrasonic signal pick-up unit, comprise GIS housing, benzvalene form insulated terminal is provided with in described GIS housing, the GIS housing of described benzvalene form insulated terminal end is provided with metallic shield and windows, it is characterized in that: described metallic shield is provided with coupling mechanism in windowing, described coupling mechanism is connected with superfrequency sensor, the rear end of described superfrequency sensor is connected with matched impedance, the output terminal of described superfrequency sensor is connected with the positive input of the first operational amplifier, described coupling mechanism, superfrequency sensor, matched impedance, first operational amplifier is arranged in metallic shield, described metallic shield is arranged on the outer wall of GIS housing, the described negative input of the first operational amplifier is connected with the housing of metallic shield, described metallic shield is connected to the ground and connects, the outer wall of described GIS housing is also provided with ultrasonic sensor, described ultrasonic sensor is connected by the positive input of ultrasound wave receiving circuit with the second operational amplifier, the negative input of described second operational amplifier is connected to the ground and connects, described first operational amplifier, the output terminal of the second operational amplifier is connected with the input end of single-chip microcomputer respectively, described single-chip microcomputer carries out data transmission by GPRS telecommunication circuit and remote terminal.
Aforesaid a kind of Portable PD On-Line superfrequency and ultrasonic signal pick-up unit, is characterized in that: the detection frequency range of described superfrequency sensor is between 300MHz-3GHz.
Aforesaid a kind of Portable PD On-Line superfrequency and ultrasonic signal pick-up unit, is characterized in that: described single-chip microcomputer is MPS430 single-chip microcomputer, and described MPS430 single-chip microcomputer is provided with built-in AD collecting unit.
The beneficial effects of the utility model are: the Portable PD On-Line superfrequency that the utility model provides and ultrasonic signal pick-up unit, coupling coupling mechanism, superfrequency sensor, matched impedance, first operational amplifier is arranged in metallic shield, the interference of extraneous high-frequency signal can be stopped, improve and detect accuracy of detection, and add ultrasonic sensor, superfrequency sensor is coordinated accurately to locate local discharge signal, good positioning effect, also be provided with GPRS telecommunication circuit, data transmission is carried out with remote terminal, realize remote testing, reduce the inconvenience of field wiring, easy to use, have a good application prospect.
Accompanying drawing explanation
Fig. 1 is the structural representation of Portable PD On-Line superfrequency of the present utility model and ultrasonic signal pick-up unit.
The implication of drawing reference numeral is as follows:
1:GIS housing; 2: benzvalene form insulated terminal; 3: metallic shield is windowed; 4: coupling mechanism; 5: superfrequency sensor; 6: matched impedance; 7: the first operational amplifiers; 8: metallic shield; 9: ultrasonic sensor; 10: ultrasound wave receiving circuit; 11: the second operational amplifiers; 12: single-chip microcomputer; 13:GPRS telecommunication circuit; 14: remote terminal.
Embodiment
Below in conjunction with Figure of description, the utility model is further described.
As shown in Figure 1, a kind of Portable PD On-Line superfrequency and ultrasonic signal pick-up unit, comprise GIS housing 1, benzvalene form insulated terminal 2 is provided with in GIS housing 1, the GIS housing 1 of benzvalene form insulated terminal 2 end is provided with metallic shield and windows 3, metallic shield is windowed in 3 and is provided with coupling mechanism 4, coupling mechanism 4 is connected with superfrequency sensor 5, the rear end of superfrequency sensor 5 is connected with matched impedance 6, detect frequency range between 300MHz-3GHz, cover the frequency range of the local discharge signal of GIS housing 1, the output terminal of superfrequency sensor 5 is connected with the positive input of the first operational amplifier 7, coupling mechanism 4, superfrequency sensor 5, matched impedance 6, first operational amplifier 7 is arranged in metallic shield 8, metallic shield 8 is arranged on the outer wall of GIS housing 1, the interference of extraneous high-frequency signal can be stopped, improve and detect accuracy of detection, the negative input of the first operational amplifier 7 is connected with the housing of metallic shield 8, metallic shield 8 is connected to the ground and connects, the outer wall of described GIS housing 1 is also provided with ultrasonic sensor 9, ultrasonic sensor 9 is connected by the positive input of ultrasound wave receiving circuit 10 with the second operational amplifier 11, the negative input of the second operational amplifier 11 is connected to the ground and connects, the ultrasonic sensor 9 increased can coordinate superfrequency sensor 5, realize accurately locating local discharge signal, by superfrequency sensor 5 first the equipment detected in GIS housing 1 whether there is shelf depreciation, detect local discharge signal whether to exist, and realize the location to local discharge signal source by ultrasonic sensor 9, easy to use, reliability is high, first operational amplifier 7, the output terminal of the second operational amplifier 11 is connected with the input end of single-chip microcomputer 12 respectively, described single-chip microcomputer 12 carries out data transmission by GPRS telecommunication circuit 13 and remote terminal 14, single-chip microcomputer 12 is MPS430 single-chip microcomputer, MPS430 single-chip microcomputer is provided with built-in AD collecting unit, for gathering superfrequency sensor 5, the signal that ultrasonic sensor 9 detects, design cost is low, easy to use, remote testing is realized by GPRS telecommunication circuit 13, reduce the inconvenience of field wiring, easy to use, volume is little, be easy to carry, have a good application prospect.
More than show and describe ultimate principle of the present utility model, principal character and advantage.The technician of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and instructions just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.

Claims (3)

1. a Portable PD On-Line superfrequency and ultrasonic signal pick-up unit, comprise GIS housing (1), benzvalene form insulated terminal (2) is provided with in described GIS housing (1), the GIS housing (1) of described benzvalene form insulated terminal (2) end is provided with metallic shield and windows (3), it is characterized in that: described metallic shield is windowed in (3) and is provided with coupling mechanism (4), described coupling mechanism (4) is connected with superfrequency sensor (5), the rear end of described superfrequency sensor (5) is connected with matched impedance (6), the output terminal of described superfrequency sensor (5) is connected with the positive input of the first operational amplifier (7), described coupling mechanism (4), superfrequency sensor (5), matched impedance (6), first operational amplifier (7) is arranged in metallic shield (8), described metallic shield (8) is arranged on the outer wall of GIS housing (1), the negative input of described first operational amplifier (7) is connected with the housing of metallic shield (8), described metallic shield (8) is connected to the ground and connects, the outer wall of described GIS housing (1) is also provided with ultrasonic sensor (9), described ultrasonic sensor (9) is connected by the positive input of ultrasound wave receiving circuit (10) with the second operational amplifier (11), the negative input of described second operational amplifier (11) is connected to the ground and connects, described first operational amplifier (7), the output terminal of the second operational amplifier (11) is connected with the input end of single-chip microcomputer (12) respectively, described single-chip microcomputer (12) carries out data transmission by GPRS telecommunication circuit (13) and remote terminal (14).
2. a kind of Portable PD On-Line superfrequency according to claim 1 and ultrasonic signal pick-up unit, is characterized in that: the detection frequency range of described superfrequency sensor (5) is between 300MHz-3GHz.
3. a kind of Portable PD On-Line superfrequency according to claim 1 and ultrasonic signal pick-up unit, is characterized in that: described single-chip microcomputer (12) is MPS430 single-chip microcomputer, and described MPS430 single-chip microcomputer is provided with built-in AD collecting unit.
CN201520341595.7U 2015-05-25 2015-05-25 A kind of Portable PD On-Line superfrequency and ultrasonic signal pick-up unit Active CN204666773U (en)

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CN201520341595.7U CN204666773U (en) 2015-05-25 2015-05-25 A kind of Portable PD On-Line superfrequency and ultrasonic signal pick-up unit

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CN201520341595.7U CN204666773U (en) 2015-05-25 2015-05-25 A kind of Portable PD On-Line superfrequency and ultrasonic signal pick-up unit

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105929310A (en) * 2016-04-27 2016-09-07 支磊 Device for detecting GIS partial discharge fault and detection method thereof
CN106154132A (en) * 2016-08-31 2016-11-23 国家电网公司 A kind of GIS partial discharge ultrasound wave superfrequency joint-detection localization method
CN107462852A (en) * 2017-06-22 2017-12-12 广西电网有限责任公司电力科学研究院 A kind of scaling method of high frequency partial discharge examination instrument parameter
CN113608156A (en) * 2021-08-06 2021-11-05 云南电网有限责任公司丽江供电局 False alarm investigation system and judgment method of GIS ultrahigh frequency partial discharge online monitoring device
CN114509651A (en) * 2022-04-15 2022-05-17 湖北工业大学 GIS partial discharge external ultrasonic and ultrahigh frequency integrated sensor and detection method

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105929310A (en) * 2016-04-27 2016-09-07 支磊 Device for detecting GIS partial discharge fault and detection method thereof
CN105929310B (en) * 2016-04-27 2019-01-22 支磊 A kind of device and its detection method detecting GIS partial discharge failure
CN106154132A (en) * 2016-08-31 2016-11-23 国家电网公司 A kind of GIS partial discharge ultrasound wave superfrequency joint-detection localization method
CN107462852A (en) * 2017-06-22 2017-12-12 广西电网有限责任公司电力科学研究院 A kind of scaling method of high frequency partial discharge examination instrument parameter
CN113608156A (en) * 2021-08-06 2021-11-05 云南电网有限责任公司丽江供电局 False alarm investigation system and judgment method of GIS ultrahigh frequency partial discharge online monitoring device
CN114509651A (en) * 2022-04-15 2022-05-17 湖北工业大学 GIS partial discharge external ultrasonic and ultrahigh frequency integrated sensor and detection method
CN114509651B (en) * 2022-04-15 2022-07-19 湖北工业大学 GIS partial discharge external ultrasonic and ultrahigh frequency integrated sensor and detection method

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