CN204964691U - GIS (gas -insulated switchgear) partial discharge monitoring device - Google Patents

GIS (gas -insulated switchgear) partial discharge monitoring device Download PDF

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Publication number
CN204964691U
CN204964691U CN201520777121.7U CN201520777121U CN204964691U CN 204964691 U CN204964691 U CN 204964691U CN 201520777121 U CN201520777121 U CN 201520777121U CN 204964691 U CN204964691 U CN 204964691U
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China
Prior art keywords
gis
feeder pillar
partial discharge
discharge monitoring
pass filter
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CN201520777121.7U
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Chinese (zh)
Inventor
孙晓凡
罗涛
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PHOIBOS TECHNOLOGY Co Ltd
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PHOIBOS TECHNOLOGY Co Ltd
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Abstract

The utility model provides a GIS (gas -insulated switchgear) partial discharge monitoring device, the device includes the GIS casing, the benzvalene form insulator, the sensing electrode, detect the impedance, high pass filter, amplifier and measuring apparatu, the benzvalene form insulator sets up on the GIS casing, sensing electrode package draws together the medium base plate, metal paster and feeder pillar, the medium base plate sets up in the benzvalene form insulator, the upper surface at the medium base plate is established in the subsides of metal paster, feeder pillar fixes in the medium base plate, feeder pillar's one end is connected with the metal paster, feeder pillar's the other end passes the lower surface of medium base plate, it connects between feeder pillar's the other end and GIS casing to detect the impedance, it is coupled with high pass filter to detect the impedance, high pass filter passes through the amplifier and connects the measuring apparatu. In this way, the utility model discloses can improve partial discharge monitoring's reliability.

Description

GIS partial discharge monitoring device
Technical field
The utility model relates to high-tension electricity detection technique field, particularly relates to a kind of GIS partial discharge monitoring device.
Background technology
Shelf depreciation refers to the electric discharge phenomena that the insulation system of power equipment occurs in regional area under enough strong electric field action.Although this shelf depreciation only can cause, the subrange of insulation system is breakdown causes local short circuit, and the insulation between the conductor of power equipment penetrability does not occur and punctures, and shelf depreciation all can have some to affect on insulating medium each time.In addition, the impact of slight shelf depreciation on Electric Power Equipment Insulation is less, and the decline of dielectric strength is comparatively slow, and strong shelf depreciation, then dielectric strength can be made to decline very soon.
Therefore, in power equipment runs, need to carry out partial discharge monitoring, to ensure insulation quality.
Utility model content
The technical matters that the utility model mainly solves is to provide a kind of GIS partial discharge monitoring device, can improve the reliability of partial discharge monitoring.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: provide a kind of GIS partial discharge monitoring device, comprise GIS housing, disc insulator, sensing electrode, detect impedance, Hi-pass filter, amplifier and measuring instrument, described disc insulator is arranged on described GIS housing, described sensing electrode comprises medium substrate, metal patch and feeder pillar, described medium substrate is arranged in described disc insulator, described metal patch is sticked at the upper surface of described medium substrate, described feeder pillar is fixed in described medium substrate, one end of described feeder pillar is connected with described metal patch, the other end of described feeder pillar passes the lower surface of described medium substrate, described detection impedance is connected between the other end of described feeder pillar and described GIS housing, described detection impedance and described Hi-pass filter couple, described Hi-pass filter connects described measuring instrument by described amplifier.
Be different from the situation of prior art, the beneficial effects of the utility model are: carry out partial discharge monitoring by sensing electrode to GIS device, can realize fault pre-alarming, hidden danger of fixing a breakdown in advance, thus the reliability that can improve partial discharge monitoring.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment GIS partial discharge monitoring device.
Fig. 2 is the structural representation of the sensing electrode of the GIS partial discharge monitoring device shown in Fig. 1.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only a part of embodiment of the present utility model, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
In the lump see Fig. 1 and Fig. 2, the GIS partial discharge monitoring device of the utility model embodiment comprises GIS housing 1, disc insulator 2, sensing electrode 3, detects impedance 4, Hi-pass filter 5, amplifier 6 and measuring instrument 7.
Disc insulator 2 is arranged on GIS housing 1.Sensing electrode 3 comprises medium substrate 31, metal patch 32 and feeder pillar 33, medium substrate 31 is arranged in disc insulator 2, metal patch 32 is sticked at the upper surface of medium substrate 31, feeder pillar 33 is fixed in medium substrate 31, one end of feeder pillar 33 is connected with metal patch 32, the other end of feeder pillar 33 passes the lower surface of medium substrate 31, detecting impedance 4 is connected between the other end of feeder pillar 33 and GIS housing 1, detect impedance 4 to couple with Hi-pass filter 5, Hi-pass filter 5 connects measuring instrument 7 by amplifier 6.
Wherein, metal patch 32 and GIS housing 1 form electric capacity, utilize this electric capacity can extract the pulse signal of shelf depreciation, and by high-pass filtering with after amplifying, measuring instrument 7 just can obtain local discharge signal.
By the way, the GIS partial discharge monitoring device of the utility model embodiment carries out partial discharge monitoring by sensing electrode to GIS device, fault pre-alarming can be realized, to fix a breakdown in advance hidden danger, thus the reliability of partial discharge monitoring can be improved, there is volume little, lightweight, easy to carry, the advantages such as antijamming capability is strong.
The foregoing is only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model instructions and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.

Claims (1)

1. a GIS partial discharge monitoring device, it is characterized in that, comprise GIS housing, disc insulator, sensing electrode, detect impedance, Hi-pass filter, amplifier and measuring instrument, described disc insulator is arranged on described GIS housing, described sensing electrode comprises medium substrate, metal patch and feeder pillar, described medium substrate is arranged in described disc insulator, described metal patch is sticked at the upper surface of described medium substrate, described feeder pillar is fixed in described medium substrate, one end of described feeder pillar is connected with described metal patch, the other end of described feeder pillar passes the lower surface of described medium substrate, described detection impedance is connected between the other end of described feeder pillar and described GIS housing, described detection impedance and described Hi-pass filter couple, described Hi-pass filter connects described measuring instrument by described amplifier.
CN201520777121.7U 2015-10-09 2015-10-09 GIS (gas -insulated switchgear) partial discharge monitoring device Active CN204964691U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520777121.7U CN204964691U (en) 2015-10-09 2015-10-09 GIS (gas -insulated switchgear) partial discharge monitoring device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520777121.7U CN204964691U (en) 2015-10-09 2015-10-09 GIS (gas -insulated switchgear) partial discharge monitoring device

Publications (1)

Publication Number Publication Date
CN204964691U true CN204964691U (en) 2016-01-13

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Application Number Title Priority Date Filing Date
CN201520777121.7U Active CN204964691U (en) 2015-10-09 2015-10-09 GIS (gas -insulated switchgear) partial discharge monitoring device

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CN (1) CN204964691U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108152694A (en) * 2018-02-01 2018-06-12 清华大学 A kind of GIS disc insulators detection method for local discharge
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 (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108152694A (en) * 2018-02-01 2018-06-12 清华大学 A kind of GIS disc insulators detection method for local discharge
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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