CN205608140U - Inside high -pressure conductor of GIS circular arc sensor for partial discharge detector - Google Patents

Inside high -pressure conductor of GIS circular arc sensor for partial discharge detector Download PDF

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Publication number
CN205608140U
CN205608140U CN201620352906.4U CN201620352906U CN205608140U CN 205608140 U CN205608140 U CN 205608140U CN 201620352906 U CN201620352906 U CN 201620352906U CN 205608140 U CN205608140 U CN 205608140U
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China
Prior art keywords
gis
metal
partial discharge
circular arc
antenna
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Expired - Fee Related
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CN201620352906.4U
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Chinese (zh)
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贾琼雷
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Individual
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Individual
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Abstract

The utility model discloses an inside high -pressure conductor of GIS circular arc sensor for partial discharge detector, including metal -back and detection antenna, metal -back one end is provided with the baffle, and the metal -back other end is provided with flange, in the mounting hole of metal -back card setting on GIS equipment casing, and fix through the screw between flange and the GIS equipment casing, detect antenna passing signal line and N the TYPE articulate, is the flange lower extreme provided with the control box, and the control box passes through coaxial radio frequency cable and N TYPE connects electric connection, this inside high -pressure conductor of GIS circular arc sensor for partial discharge detector, its adopts and set up the mounting hole on GIS equipment casing, then directly inserts in the inside of GIS equipment casing through the metal -back that the antenna will be placed to the mounting hole, electromagnetic wave signal that the signal that discharges produced GIS equipment casing inside through the reflection by the antenna response, and then make the measurement accuracy improvement of sensor, the practicality is strong, easily uses widely.

Description

A kind of GIS internal high voltage conductor Partial Discharge Detection arc sensor
Technical field
This utility model relates to inside electric appliance Partial Discharge Detection equipment technical field, is specially one GIS internal high voltage conductor Partial Discharge Detection arc sensor.
Background technology
In recent years, along with the development of Construction of Intercity Network, the quantity of GIS device is continuously increased, along with GIS Increasing of number of devices, the probability that GIS device breaks down also is increasing.Research shows, in GIS device Portion's fault is with insulation failure for many.The shelf depreciation of GIS device is often tendency and the table of insulation failure Existing form, it is considered that in GIS device, electric discharge makes SF6 gas decompose and will have a strong impact on Electric Field Distribution, leads Send a telegraph field distortion, make insulant corrode, finally cause insulation breakdown.Put it was verified that carry out local Electro-detection can be prevented effectively from the generation of GIS accident.SF6 gas in GIS device has the highest exhausted Edge intensity.Research shows, its discharge signal of shelf depreciation being in hyperbar SF6 gaseous environment upper Rising edge and the persistent period is extremely short, the frequency spectrum of typical case's GIS equipment partial discharge signal can be from low frequency to hundreds of MHz even more than 1GHz.Discharge pulse ripple in GIS device is not only with the shape of transverse electromagnetic wave (TEM ripple) Formula is propagated, but also can propagate in the way of TE wave (TE ripple) and transverse magnetic wave (TM ripple).Right A lower-cut-off frequency, the most hundreds of MHz is there is in TE ripple and TM ripple.Gold due to GIS device Belonging to coaxial configuration is a good waveguide, and the ultra-high frequency signal that shelf depreciation produces can be effectively along ripple Leading propagation, in GIS device, many places are equipped with disc insulator, and these insulators are nonferromagnetic material, permissible Transmission uhf electromagnetic wave signal, the electromagnetic wave produced when GIS equipment partial discharge passes along metal shaft (cylinder) Sowing time, part signal can be by insulator to external radiation.
Compared with tradition method for measurement of partial discharge, the method detecting this ultra high frequency discharge signal has it Unique noiseproof feature.In general, the interference signal encountered in measurement of partial discharge mainly comes The interference of electromagnetic signal in electrical network, the interference such as corona interference, produced during switching manipulation and each Planting high voltage electric equipment and produce electric discharge etc., these interference belong to impulse type interference signal, and its feature is often Close with local discharge signal, the most unanimously.Therefore, for Partial Discharge Detecting Technology, solve to survey Interference problem encountered in amount process is the Major Difficulties in the most traditional measurement of partial discharge;Meanwhile, In existing inside electric appliance Partial Discharge Detection equipment, simply it is detected by single channel, test effect Rate is substantially reduced.
Summary of the invention
Prior art is difficult to meet the needs of people, in order to solve the problem of above-mentioned existence, this utility model Proposing a kind of GIS internal high voltage conductor Partial Discharge Detection arc sensor, it uses and sets at GIS Offer installing hole on standby housing, then by installing hole, the metal-back placing antenna is directly inserted in GIS and sets The inside of standby housing, when so shelf depreciation occurring inside GIS device, the electromagnetism that discharge signal produces Ripple signal is in GIS device enclosure interior by reflection, and the different mode such as refraction enters in metal-back also By antenna induction, thus can detect that the shelf depreciation of GIS device.
For achieving the above object, this utility model provides following technical scheme: a kind of GIS internal high pressure is led Body Partial Discharge Detection arc sensor, including metal-back and detection antenna;Described metal-back one end is arranged There is baffle plate, and the metal-back other end is provided with adpting flange;Described metal-back card is arranged on GIS device shell In installing hole on body, and it is fixed by screw between adpting flange and GIS device housing;Described Detection antenna is connected with N-TYPE joint by holding wire;Described adpting flange lower end is provided with control chamber, And control chamber is electrically connected with N-TYPE joint by coaxial radio frequency cable;It is provided with letter in described control chamber Number filter amplifier, A/D converter and digital acquisition device, and signal filtering amplifier out turns with A/D Parallel operation input is electrically connected with;Described A/D converter outfan is electrically connected with digital acquisition device input; It is provided with wireless transmitter on described digital acquisition device.
Further, described detection antenna is at least provided with two, and is evenly distributed in metal-back.
Further, described wireless transmitter and the wireless receiver wireless connections processed on main frame.
Further, it is additionally provided with sealing ring between described metal-back and GIS device housing.
Compared with prior art, the beneficial effects of the utility model are: this GIS internal high voltage conductor local Discharge examination arc sensor, it uses and offers installing hole on GIS device housing, then by peace The metal-back placing antenna is directly inserted in the inside of GIS device housing by dress hole, so when in GIS device When shelf depreciation occurs in portion, the electromagnetic wave signal that discharge signal produces passes through anti-in GIS device enclosure interior Penetrate, in the different mode such as refraction enters into metal-back and by antenna induction, thus can detect that GIS The shelf depreciation of equipment, and then make the certainty of measurement of sensor improve;Multiple inspection it is provided with in metal-back Observation line detects, and detection efficiency is greatly improved;Practical, it is easy to promote the use of.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present utility model;
Fig. 2 is operation principle block diagram of the present utility model;
In figure: 1-metal-back, 2-detection antenna, 3-baffle plate, 4-adpting flange, 5-GIS apparatus casing, 6-installing hole, 7-screw, 8-holding wire, 9-N-TYPE joint, 10-control chamber, 11-signal filtering are put Big device, 12-A/D transducer, 13-digital acquisition device, 14-wireless transmitter, 15-process main frame, 16- Coaxial radio frequency cable.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, to the technology in this utility model embodiment Scheme is clearly and completely described, it is clear that described embodiment is only this utility model one Divide embodiment rather than whole embodiments.Based on the embodiment in this utility model, this area is common The every other embodiment that technical staff is obtained under not making creative work premise, broadly falls into this The scope of utility model protection.
Refer to Fig. 1-2, a kind of embodiment that this utility model provides: a kind of GIS internal high voltage conductor office Portion's discharge examination arc sensor, including metal-back 1 and detection antenna 2;Described metal-back 1 one end sets It is equipped with baffle plate 3, and metal-back 1 other end is provided with adpting flange 4;Described metal-back 1 card is arranged on GIS In installing hole 6 on apparatus casing 5, and by screw 7 between adpting flange 4 and GIS device housing 5 It is fixed;Described detection antenna 2 is connected with N-TYPE joint 9 by holding wire 8;Described connection method Blue 4 lower ends are provided with control chamber 10, and control chamber 10 is by coaxial radio frequency cable 16 and N-TYPE joint 9 are electrically connected with;Signal filtering amplifier 11, A/D converter 12 sum it is provided with in described control chamber 10 Word harvester 13, and signal filtering amplifier 11 outfan and A/D converter 12 input be electrically connected with; Described A/D converter 12 outfan is electrically connected with digital acquisition device 13 input;Described digital collection Wireless transmitter 14 it is provided with on device 13;Described detection antenna 2 is at least provided with two, and is uniformly distributed In metal-back 1;Described wireless transmitter 14 and the wireless receiver wireless connections processed on main frame 15; It is additionally provided with sealing ring between described metal-back 1 and GIS device housing 5.
This utility model GIS internal high voltage conductor Partial Discharge Detection with arc sensor in use, is examined Observation line 2 is detected in metal-back 1 electromagnetic wave signal and is passed by holding wire 8 by the electromagnetic wave signal of detection It is delivered on N-TYPE joint 9, then is transported in control chamber 10;Through signal filtering amplifier 11 and A/D The process of data is finally collected in digital acquisition device 13 by transducer 12, and by wireless transmitter 14 It is transmitted on process main frame 15 and is analyzed, simple to operate.
It is obvious to a person skilled in the art that this utility model is not limited to above-mentioned one exemplary embodiment Details, and in the case of without departing substantially from spirit or essential attributes of the present utility model, it is possible to other Concrete form realizes this utility model.Which point therefore, no matter from the point of view of, embodiment all should be regarded as Exemplary, and be nonrestrictive, scope of the present utility model by claims rather than on State bright restriction, it is intended that all changes that will fall in the implication of equivalency and scope of claim Change and include in this utility model.Any reference in claim should be considered as restriction involved Claim.

Claims (4)

1. a GIS internal high voltage conductor Partial Discharge Detection arc sensor, is characterized in that: include gold Belong to shell (1) and detection antenna (2);Described metal-back (1) one end is provided with baffle plate (3), and metal Shell (1) other end is provided with adpting flange (4);Described metal-back (1) card is arranged on GIS device shell In installing hole (6) on body (5) and logical between adpting flange (4) and GIS device housing (5) Cross screw (7) to be fixed;Described detection antenna (2) is by holding wire (8) and N-TYPE joint (9) connect;Described adpting flange (4) lower end is provided with control chamber (10), and control chamber (10) leads to Cross coaxial radio frequency cable (16) to be electrically connected with N-TYPE joint (9);In described control chamber (10) It is provided with signal filtering amplifier (11), A/D converter (12) and digital acquisition device (13), and signal Filter amplifier (11) outfan is electrically connected with A/D converter (12) input;Described A/D turns Parallel operation (12) outfan is electrically connected with digital acquisition device (13) input;Described digital acquisition device (13) On be provided with wireless transmitter (14).
A kind of GIS internal high voltage conductor Partial Discharge Detection circular arc the most according to claim 1 passes Sensor, is characterized in that: described detection antenna (2) is at least provided with two, and is evenly distributed on metal-back (1) in.
A kind of GIS internal high voltage conductor Partial Discharge Detection circular arc the most according to claim 1 passes Sensor, is characterized in that: described wireless transmitter (14) and the wireless receiver processed on main frame (15) Wireless connections.
A kind of GIS internal high voltage conductor Partial Discharge Detection circular arc the most according to claim 1 passes Sensor, is characterized in that: be additionally provided with sealing between described metal-back (1) and GIS device housing (5) Circle.
CN201620352906.4U 2016-04-22 2016-04-22 Inside high -pressure conductor of GIS circular arc sensor for partial discharge detector Expired - Fee Related CN205608140U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620352906.4U CN205608140U (en) 2016-04-22 2016-04-22 Inside high -pressure conductor of GIS circular arc sensor for partial discharge detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620352906.4U CN205608140U (en) 2016-04-22 2016-04-22 Inside high -pressure conductor of GIS circular arc sensor for partial discharge detector

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CN205608140U true CN205608140U (en) 2016-09-28

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109950805A (en) * 2017-12-20 2019-06-28 天津平高智能电气有限公司 A kind of high-tension switch cabinet
CN113933663A (en) * 2021-09-28 2022-01-14 广东电网有限责任公司广州供电局 Active integrated built-in GIS partial discharge ultrahigh frequency detection device and GIS equipment

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109950805A (en) * 2017-12-20 2019-06-28 天津平高智能电气有限公司 A kind of high-tension switch cabinet
CN109950805B (en) * 2017-12-20 2020-12-18 天津平高智能电气有限公司 High-voltage switch cabinet
CN113933663A (en) * 2021-09-28 2022-01-14 广东电网有限责任公司广州供电局 Active integrated built-in GIS partial discharge ultrahigh frequency detection device and GIS equipment

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20160928

CF01 Termination of patent right due to non-payment of annual fee