CN204666772U - A kind of shelf depreciation In-circiut tester - Google Patents

A kind of shelf depreciation In-circiut tester Download PDF

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Publication number
CN204666772U
CN204666772U CN201520341593.8U CN201520341593U CN204666772U CN 204666772 U CN204666772 U CN 204666772U CN 201520341593 U CN201520341593 U CN 201520341593U CN 204666772 U CN204666772 U CN 204666772U
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China
Prior art keywords
high frequency
frequency sensors
coupling mechanism
shelf depreciation
terminal
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Active
Application number
CN201520341593.8U
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Chinese (zh)
Inventor
耿婧
朱海波
王天
徐振东
张长春
张传刚
马树国
刘飞
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Nanjing Guangchuang Technology Co Ltd
State Grid Corp of China SGCC
State Grid Jilin Electric Power Corp
Original Assignee
Nanjing Guangchuang Technology Co Ltd
State Grid Corp of China SGCC
State Grid Jilin Electric Power Corp
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Application filed by Nanjing Guangchuang Technology Co Ltd, State Grid Corp of China SGCC, State Grid Jilin Electric Power Corp filed Critical Nanjing Guangchuang Technology Co Ltd
Priority to CN201520341593.8U priority Critical patent/CN204666772U/en
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Publication of CN204666772U publication Critical patent/CN204666772U/en
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Abstract

The utility model discloses a kind of shelf depreciation In-circiut tester, benzvalene form insulated terminal is provided with in GIS housing, the GIS housing of the end of benzvalene form insulated terminal is provided with metallic shield and windows, coupling mechanism is fixed on metallic shield and windows end, coupling mechanism is connected with high frequency sensors by conversion connector, shielded metal cover is arranged on GIS outside, coupling mechanism, conversion connector, high frequency sensors is arranged in shielded metal cover, the output terminal of high frequency sensors is connected with oscillographic input channel by telecommunication cable, also comprise collecting unit, communication unit, high frequency sensors is also connected with communication unit by collecting unit, communication unit is connected with terminal by serial communication line.The utility model adds in shielded metal cover, can stop the interference of extraneous high-frequency signal, increases the accuracy of detection of shelf depreciation, and is connected with oscillograph, terminal, is convenient to detect analyze, and structure is simple, has a good application prospect.

Description

A kind of shelf depreciation In-circiut tester
Technical field
The utility model relates to a kind of shelf depreciation In-circiut tester, belongs to electric signal detection technique field.。
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, contribute to the defect finding GIS device enclosure interior, but, current shelf depreciation on-line testing equipment, for the GIS device run, the external high frequency sensors that adopts carries out local discharge signal detection more, but, external high frequency sensors, in testing process, is easily subject to the interference of extraneous high-frequency signal, affects the accuracy of detection of shelf depreciation.
Utility model content
The utility model object is to overcome existing shelf depreciation on-line testing equipment, adopts external high frequency sensors in testing process, is easily subject to the interference of extraneous high-frequency signal, affects the accuracy of detection of shelf depreciation.Shelf depreciation In-circiut tester of the present utility model, coupling mechanism, conversion connector, high frequency sensors are arranged in shielded metal cover, the interference of extraneous high-frequency signal can be stopped, increase the accuracy of detection of shelf depreciation, and be connected with oscillograph, terminal, be convenient to detect and analyze, structure is simple, has a good application prospect.
In order to achieve the above object, the technical scheme that the utility model adopts is:
A kind of shelf depreciation In-circiut tester, it is characterized in that: comprise GIS housing, coupling mechanism, conversion connector, high frequency sensors, shielded metal cover, telecommunication cable and oscillograph, benzvalene form insulated terminal is provided with in described GIS housing, the GIS housing of the end of described benzvalene form insulated terminal is provided with metallic shield and windows, described coupling mechanism is fixed on metallic shield and windows end, described coupling mechanism is connected with high frequency sensors by conversion connector, described shielded metal cover is arranged on GIS outside, described coupling mechanism, conversion connector, high frequency sensors is arranged in shielded metal cover, the output terminal of described high frequency sensors is connected with oscillographic input channel by telecommunication cable.
Aforesaid a kind of shelf depreciation In-circiut tester, is characterized in that: the impedance matching of described telecommunication cable is 50 Ω.
Aforesaid a kind of shelf depreciation In-circiut tester, it is characterized in that: also comprise collecting unit, communication unit, described high frequency sensors is also connected with communication unit by collecting unit, and described communication unit is connected with terminal by serial communication line.
The beneficial effects of the utility model are: shelf depreciation In-circiut tester of the present utility model, coupling mechanism, conversion connector, high frequency sensors are arranged in shielded metal cover, the interference of extraneous high-frequency signal can be stopped, increase the accuracy of detection of shelf depreciation, and be connected with oscillograph, terminal, be convenient to detect and analyze, structure is simple, has a good application prospect.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of shelf depreciation In-circiut tester of the present utility model.
The implication marked in accompanying drawing is as follows:
1:GIS housing; 2: coupling mechanism; 3: conversion connector; 4: high frequency sensors; 5: shielded metal cover; 6: telecommunication cable; 7: oscillograph; 8: collecting unit; 9: communication unit; 10: metallic shield is windowed; 11: terminal.
Embodiment
Below in conjunction with Figure of description, the utility model is described further.Following examples only for clearly the technical solution of the utility model being described, and can not limit protection domain of the present utility model with this.
As shown in Figure 1, shelf depreciation In-circiut tester of the present utility model, comprise GIS housing 1, coupling mechanism 2, conversion connector 3, high frequency sensors 4, shielded metal cover 5, telecommunication cable 6 and oscillograph 7, benzvalene form insulated terminal is provided with in GIS housing 1, the GIS housing 1 of the end of benzvalene form insulated terminal is provided with metallic shield and windows 10, coupling mechanism 2 is fixed on metallic shield and windows 10 ends, coupling mechanism 2 is connected with high frequency sensors 4 by conversion connector 3, coupling mechanism 2 is for being coupled Partial discharge signal, and by conversion connector 3 converting transmission to high frequency sensors 4, it is outside that shielded metal cover 5 is arranged on GIS housing 1, coupling mechanism 2, conversion connector 3, high frequency sensors 4 is arranged in shielded metal cover 5, the interference of extraneous high-frequency signal can be stopped, increase the accuracy of detection of shelf depreciation, the output terminal of high frequency sensors 4 is connected by the input channel of telecommunication cable 6 with oscillograph 7.
The impedance matching of described telecommunication cable 6 is 50 Ω, matches, for detecting Partial discharge signal with the oscillograph 7 be connected.
Shelf depreciation In-circiut tester of the present utility model, also comprise collecting unit 8, communication unit 9, high frequency sensors 4 is also connected with communication unit 9 by collecting unit 8, communication unit 9 is connected with terminal 11 by serial communication line, and terminal 11 is for analyzing the position of local discharge signal.
In sum, shelf depreciation In-circiut tester of the present utility model, coupling mechanism, conversion connector, high frequency sensors are arranged in shielded metal cover, the interference of extraneous high-frequency signal can be stopped, increase the accuracy of detection of shelf depreciation, and be connected with oscillograph, terminal, be convenient to detect and analyze, structure is simple, has 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 shelf depreciation In-circiut tester, it is characterized in that: comprise GIS housing (1), coupling mechanism (2), conversion connector (3), high frequency sensors (4), shielded metal cover (5), telecommunication cable (6) and oscillograph (7), benzvalene form insulated terminal is provided with in described GIS housing (1), the GIS housing (1) of the end of described benzvalene form insulated terminal is provided with metallic shield and windows (10), described coupling mechanism (2) is fixed on metallic shield and windows (10) end, described coupling mechanism (2) is connected with high frequency sensors (4) by conversion connector (3), it is outside that described shielded metal cover (5) is arranged on GIS housing (1), described coupling mechanism (2), conversion connector (3), high frequency sensors (4) is arranged in shielded metal cover (5), the output terminal of described high frequency sensors (4) is connected by the input channel of telecommunication cable (6) with oscillograph (7).
2. a kind of shelf depreciation In-circiut tester according to claim 1, is characterized in that: the impedance matching of described telecommunication cable (6) is 50 Ω.
3. a kind of shelf depreciation In-circiut tester according to claim 1, it is characterized in that: also comprise collecting unit (8), communication unit (9), described high frequency sensors (4) is also connected with communication unit (9) by collecting unit (8), and described communication unit (9) is connected with terminal (11) by serial communication line.
CN201520341593.8U 2015-05-25 2015-05-25 A kind of shelf depreciation In-circiut tester Active CN204666772U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520341593.8U CN204666772U (en) 2015-05-25 2015-05-25 A kind of shelf depreciation In-circiut tester

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Application Number Priority Date Filing Date Title
CN201520341593.8U CN204666772U (en) 2015-05-25 2015-05-25 A kind of shelf depreciation In-circiut tester

Publications (1)

Publication Number Publication Date
CN204666772U true CN204666772U (en) 2015-09-23

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106291266A (en) * 2015-05-25 2017-01-04 国家电网公司 A kind of shelf depreciation In-circiut tester
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
CN107505552A (en) * 2017-10-16 2017-12-22 云南电网有限责任公司电力科学研究院 The lower shelf depreciation high-frequency signal extraction element of steep-front impact and measuring system
CN113671325A (en) * 2021-08-18 2021-11-19 云南电网有限责任公司大理供电局 Terminal partial discharge monitoring method and system based on high-frequency electric field change

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106291266A (en) * 2015-05-25 2017-01-04 国家电网公司 A kind of shelf depreciation In-circiut tester
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
CN107505552A (en) * 2017-10-16 2017-12-22 云南电网有限责任公司电力科学研究院 The lower shelf depreciation high-frequency signal extraction element of steep-front impact and measuring system
CN113671325A (en) * 2021-08-18 2021-11-19 云南电网有限责任公司大理供电局 Terminal partial discharge monitoring method and system based on high-frequency electric field change
CN113671325B (en) * 2021-08-18 2022-10-11 云南电网有限责任公司大理供电局 Terminal partial discharge monitoring method and system based on high-frequency electric field change

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