CN207557411U - A kind of high voltage electric equipment local discharge on-line monitoring device - Google Patents
A kind of high voltage electric equipment local discharge on-line monitoring device Download PDFInfo
- Publication number
- CN207557411U CN207557411U CN201721863977.1U CN201721863977U CN207557411U CN 207557411 U CN207557411 U CN 207557411U CN 201721863977 U CN201721863977 U CN 201721863977U CN 207557411 U CN207557411 U CN 207557411U
- Authority
- CN
- China
- Prior art keywords
- high voltage
- uhf sensor
- electric equipment
- voltage electric
- local discharge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000012806 monitoring device Methods 0.000 title claims abstract description 23
- 238000009434 installation Methods 0.000 abstract description 7
- 238000012544 monitoring process Methods 0.000 abstract description 7
- 238000005259 measurement Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 5
- 230000005611 electricity Effects 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001314 paroxysmal effect Effects 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
Abstract
The utility model discloses a kind of high voltage electric equipment local discharge on-line monitoring device, including collector and industrial personal computer；The device further includes uhf sensor, and the uhf sensor is installed on the three-phase output cable of high voltage electric equipment, and the uhf sensor is connect by collector with industrial personal computer；Wherein, the uhf sensor is in bulk, and the uhf sensor side contacts fixation with the fitting of three-phase output cable, and the bandwidth of the uhf sensor is 30MHz~1.2GHz.Signal and noise ratio can be improved, the interference noise for loading generation is filtered out easily, does not influence the measurement of local discharge signal；It can detect the traveling wave magnetic line of force on shielded layer；It can be directly mounted on cable；Mounting means relative to conventional highfrequency sensor and its with ground wire, the local discharge on-line monitoring device of the utility model realizes miniaturization, convenient installation, the reliability of high voltage electric equipment partial discharge monitoring is improved, it is applied widely, it is easy to utilize.
Description
Technical field
The utility model is related to high voltage electric equipment shelf depreciation technical fields, are specifically related to a kind of high voltage electric equipment
Local discharge on-line monitoring device.
Background technology
At present, cable has become one of blood vessel to transmit electric power, is equipment mostly important in transmission of electricity.However, as electricity
Burr or particle on cable conductor, the burr on housing or particle, suspend shielding (loose contact), free-moving metal
Factors, the electrical equipment such as grain, the particle on disc insulator, disc insulator internal flaw easily generate shelf depreciation.Simultaneously
In the installation and long charged operational process of cable, it is also possible to generate various insulation defects or aging, insulating properties occur
The phenomenon that declining, then cause local discharge of electrical equipment.If local discharge of electrical equipment is not found in time, can cause
The insulating layer of cable punctures completely, causes major accident.It is therefore desirable to by the shelf depreciation status real time monitor of electrical equipment
Get up, so as to find incipient fault inside cable in time, avoid that paroxysmal insulation fault occurs, be conducive to power Transmission
Safe operation.
As shown in Figure 1, existing local discharge of electrical equipment on-Line Monitor Device is generally all led to comprising acquisition module and data
Believe module, acquired by conventional highfrequency sensor 03, carry out local discharge of electrical equipment monitoring.But the because bore of installation
Weak (when conventional highfrequency sensor 03 is around cable, the traveling wave of inner conductor and shielded layer presents reversed, can offset portion with signal
Divide signal) the problem of, so conventional highfrequency sensor 03 can only be installed on the ground wire 02 of cable 01；Due to traditional cable 01
Only single other ground connection, if so when other end end is not grounded 02, can not install conventional highfrequency sensor 03, cause
Local discharge of electrical equipment situation cannot monitor.And the bandwidth of conventional highfrequency sensor 03 is mostly within 20MHz, easily by
Noise jamming so that can not be detected due to noise is excessive in the partial discharge signal of certain ranges；Then high pressure is reduced
The reliability of local discharge of electrical equipment monitoring.
Utility model content
The defects of to overcome the prior art, the purpose of this utility model is that：A kind of high voltage electric equipment is provided locally to put
Electric on-Line Monitor Device can detect the traveling wave magnetic line of force on shielded layer, effectively increase high voltage electric equipment and locally put
The reliability of pyroelectric monitor；Signal and noise ratio can be improved, easily filtered out the interference noise for loading generation, exclusive PCR, improved
Detect quality；Realization minimizes, limitation is small, convenient installation.
The utility model solves technical problem and adopts the following technical scheme that：
A kind of high voltage electric equipment local discharge on-line monitoring device, including collector and industrial personal computer；The device also wraps
Uhf sensor is included, the uhf sensor is installed on the three-phase output cable of high voltage electric equipment, and the superelevation
Video sensor is connect by collector with industrial personal computer；Wherein, the uhf sensor is in blocky, and the uhf sensor one
Side contacts fixation with the fitting of three-phase output cable, and the bandwidth of the uhf sensor is 30MHz~1.2GHz.
Also there are following technical characteristics for the utility model：
The uhf sensor sets concave arc, and concave arc on the uhf sensor with the contact side of three-phase output cable
Radian match with the radian of three-phase output cable being bonded.
The uhf sensor is fixed on by fastener on three-phase output cable.
The fastener uses insulating tape.
Described uhf sensor one end is equipped with connecting pin, and the connecting pin is equipped with external screw thread.
The device further includes distributor, and the distributor input terminal is connect with several uhf sensors, the distribution
Device output terminal is connect with collector.
Compared with the prior art, the beneficial effects of the utility model are embodied in：
1st, the uhf sensor of the utility model is bonded with three-phase output cable side, is not around whole cable, from
And the traveling wave magnetic line of force on shielded layer is can detect, improve the reliability of high voltage electric equipment partial discharge monitoring.
2nd, used by the utility model high voltage electric equipment local discharge on-line monitoring device uhf sensor frequency
Width is 30MHz~1.2GHz, and that includes VHF bandwidths (very high frequency(VHF), frequency is by 30Mhz to 300MHz) and part UHF bandwidths are (special
High frequency, frequency are 300~3000MHz)；Then it can improve signal and noise ratio, easily filter out the interference noise for loading generation,
Exclusive PCR improves detection quality.
3rd, the high voltage electric equipment local discharge on-line monitoring device due to using uhf sensor, can be mounted directly
In on cable；Mounting means relative to conventional highfrequency sensor and its with ground wire, the shelf depreciation of the utility model are online
Monitoring device realizes miniaturization, convenient installation, without limitation, improves the reliable of high voltage electric equipment partial discharge monitoring
Property, it is applied widely, it is easy to utilize.
Description of the drawings
Fig. 1 is existing local discharge on-line monitoring device schematic diagram；Wherein, 01- cables, 02- ground wires, 03- tradition are high
Video sensor.
Fig. 2 is the utility model uhf sensor structure diagram；
Fig. 3 is the utility model local discharge on-line monitoring device schematic diagram (one)；
Fig. 4 is the utility model local discharge on-line monitoring device schematic diagram (two)；
Fig. 5 is the utility model local discharge on-line monitoring device schematic diagram (three)；
Wherein：1- collectors, 2- uhf sensors, 21- concave arcs, 22- connecting pins, 23- external screw threads, 3- three-phases output electricity
Cable, 4- fasteners, 5- distributors.
Specific embodiment
With reference to Fig. 2 to Fig. 5, to the structure feature of this high voltage electric equipment local discharge on-line monitoring device, details are as follows：
A kind of high voltage electric equipment local discharge on-line monitoring device, including collector 1 and industrial personal computer；The device also wraps
Uhf sensor 2 is included, the uhf sensor 2 is installed on the three-phase output cable 3 of high voltage electric equipment, and described super
High frequency sensors 2 are connect by collector 1 with industrial personal computer；Wherein, the uhf sensor 2 is in bulk, and the superelevation is kept pouring in
2 side of sensor contacts fixation with the fitting of three-phase output cable 3, and the bandwidth of the uhf sensor 2 is 30MHz~1.2GHz.
The local discharge signal of collected high voltage electric equipment is transmitted to industrial personal computer by uhf sensor 2 through collector 1.
Wherein, uhf sensor 2 is in bulk, and 2 side of uhf sensor contacts admittedly with the fitting of three-phase output cable 3
It is fixed；The pulse current of shelf depreciation can generate magnetic field in three-phase output cable 3, at this point, uhf sensor 2 inductively measures arteries and veins
The magnetic line of force of electric current generation is rushed, and the changes of magnetic field information that the pulse current of measurement is generated is transmitted to collector 1.That is hyperfrequency
Sensor 2 is not around whole cable, so as to can detect the traveling wave magnetic line of force on shielded layer, improves high voltage electric equipment
The reliability of partial discharge monitoring.
In addition, the bandwidth of conventional highfrequency sensor is mostly within 20MHz, so easily by noise jamming so that
The partial discharge signal of certain ranges can not detect due to noise is excessive.For the problem, the hyperfrequency of the utility model
The bandwidth of sensor 2 is 30MHz~1.2GHz, can then improve signal and noise ratio, will load the interference noise generated easily
It filters out, exclusive PCR, improves detection quality.
As the preferred embodiment of the utility model, with reference to shown in Fig. 2 to 5；
In order to improve the fitness of uhf sensor 2 and three-phase output cable 3, ensure what uhf sensor 2 positioned
It is firm；The uhf sensor 2 sets concave arc 21, and 2 fovea superior of the uhf sensor with the contact side of three-phase output cable 3
The radian of arc 21 matches with the radian of three-phase output cable 3 being bonded.It then can directly will be recessed on uhf sensor 2
Arc 21 fits with three-phase output cable 3, realizes the positioning of uhf sensor 2.
To be further ensured that uhf sensor 2 and three-phase output cable 3 position firm；The uhf sensor 2
It is fixed on three-phase output cable 3 by fastener 4.And the fastener 4 uses insulating tape.
For ease of the installation connection between the uhf sensor 2 and collector 1, described 2 one end of uhf sensor is set
There is connecting pin 22, the connecting pin 22 is equipped with external screw thread 23；And the external screw thread is with connecting uhf sensor 2 and collector 1
Between the connection internal threads of cable and damper ends be adapted.
Further, in order to extend the other application function of 1 port of collector, as shown in figure 5, the device further includes distributor
5,5 input terminal of distributor is connect with several uhf sensors 2, and 5 output terminal of distributor is connect with collector 1.
Realize that several uhf sensors 2 share a terminal of collector 1 by distributor 4, so as to save the end of collector 1
Son usage quantity so that collector 1 it is extra go out terminal be extended to other application function.
Wherein, high voltage electric equipment can be high-tension switch cabinet, transformer etc..
The utility model provides a kind of high voltage electric equipment local discharge on-line monitoring device, can improve signal and noise
Than the interference noise for loading generation is filtered out easily, does not influence the measurement of local discharge signal；It can detect the row on shielded layer
Into the wave magnetic line of force；It can be directly mounted on cable；Mounting means relative to conventional highfrequency sensor and its with ground wire, this reality
Miniaturization, convenient installation are realized with novel local discharge on-line monitoring device, improves high voltage electric equipment shelf depreciation
The reliability of monitoring, it is applied widely, it is easy to utilize.
It is obvious to a person skilled in the art that the utility model is not limited to the details of above-mentioned exemplary embodiment, and
And in the case of the spirit or essential attributes without departing substantially from the utility model, it can realize that this practicality is new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this practicality is new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that by containing in the equivalent requirements of the claims is fallen
All changes in justice and range are embraced therein.Any reference numeral in claim should not be considered as limitation
Involved claim.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in each embodiment can also be properly combined, forms those skilled in the art
The other embodiment being appreciated that.
Claims (6)
1. a kind of high voltage electric equipment local discharge on-line monitoring device, including collector and industrial personal computer；It is characterized in that：It should
Device further includes uhf sensor, and the uhf sensor is installed on the three-phase output cable of high voltage electric equipment, and
The uhf sensor is connect by collector with industrial personal computer；Wherein, the uhf sensor is in blocky, and the hyperfrequency
Sensor side contacts fixation with the fitting of three-phase output cable, and the bandwidth of the uhf sensor is 30MHz~1.2GHz.
2. a kind of high voltage electric equipment local discharge on-line monitoring device according to claim 1, it is characterised in that：It is described
Uhf sensor and the contact side of three-phase output cable set concave arc, and on the uhf sensor concave arc radian with being pasted
The radian of the three-phase output cable of conjunction matches.
3. a kind of high voltage electric equipment local discharge on-line monitoring device according to claim 1, it is characterised in that：It is described
Uhf sensor is fixed on by fastener on three-phase output cable.
4. a kind of high voltage electric equipment local discharge on-line monitoring device according to claim 3, it is characterised in that：It is described
Fastener uses insulating tape.
5. a kind of high voltage electric equipment local discharge on-line monitoring device according to claim 1, it is characterised in that：It is described
Uhf sensor one end is equipped with connecting pin, and the connecting pin is equipped with external screw thread.
6. a kind of high voltage electric equipment local discharge on-line monitoring device according to claim 1, it is characterised in that：The dress
It puts and further includes distributor, the distributor input terminal is connect with several uhf sensors, and the dispenser output end is with receiving
Storage connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721863977.1U CN207557411U (en) | 2017-12-27 | 2017-12-27 | A kind of high voltage electric equipment local discharge on-line monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721863977.1U CN207557411U (en) | 2017-12-27 | 2017-12-27 | A kind of high voltage electric equipment local discharge on-line monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207557411U true CN207557411U (en) | 2018-06-29 |
Family
ID=62660650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721863977.1U Active CN207557411U (en) | 2017-12-27 | 2017-12-27 | A kind of high voltage electric equipment local discharge on-line monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207557411U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108020764A (en) * | 2017-12-27 | 2018-05-11 | 国家电网公司 | A kind of high voltage electric equipment local discharge on-line monitoring device |
-
2017
- 2017-12-27 CN CN201721863977.1U patent/CN207557411U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108020764A (en) * | 2017-12-27 | 2018-05-11 | 国家电网公司 | A kind of high voltage electric equipment local discharge on-line monitoring device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103257263B (en) | Contactless duplex frequency voltage measuring device | |
| CN108427068A (en) | A kind of partial discharge of switchgear detection device and method | |
| CN202916392U (en) | Online monitoring system for partial discharge of switch cabinet based on pulse current method and grounding electric wave method | |
| CN102890227B (en) | Intelligent online monitoring device of partial discharge of 10 kV distribution cable | |
| CN204044296U (en) | A kind of partial discharge detecting system | |
| CN203069731U (en) | UHF (Ultra High Frequency) sensor applied to partial discharge detection | |
| CN203658526U (en) | Live-line detection device used for partial discharging of distribution cable | |
| CN107907806B (en) | Bus voltage measuring device based on GIS basin-type insulator distributed capacitance | |
| CN207557411U (en) | A kind of high voltage electric equipment local discharge on-line monitoring device | |
| CN108776290A (en) | A kind of cable Sasser testing equipment and its application method | |
| CN209373040U (en) | High-tension switch cabinet partial discharge monitors compound transducer | |
| CN203326194U (en) | Radio frequency coaxial connector with high reliability | |
| CN105606976B (en) | A kind of anti-interference method for GIS partial discharge superfrequency on-line monitoring | |
| CN202025065U (en) | Superfrequency logarithm sensor for GIS PD on-line monitoring and monitoring system adopting same | |
| CN103713244A (en) | Electrified detection device and method used for local discharging of distributing cables | |
| CN108020764A (en) | A kind of high voltage electric equipment local discharge on-line monitoring device | |
| CN109270411A (en) | A kind of partial discharge of power cable connector detection electromagnetic interference shielding device | |
| CN101183764A (en) | Radio frequency three coaxial connector | |
| CN2697662Y (en) | Local discharge detection sensor for ultraviolet frequency band | |
| CN210199237U (en) | Ring main unit partial discharge detection device based on transformation of electrified display | |
| CN105629142B (en) | For the built-in uhf sensor assembling structure of GIS partial discharge on-line monitoring | |
| CN208443966U (en) | A kind of partial discharge of switchgear detection device | |
| CN110927540A (en) | C-GIS intelligent partial discharge monitoring device based on electrified display | |
| CN203178416U (en) | Switch cabinet partial discharge on-line monitoring system based on pulse current and ground wave | |
| CN202502194U (en) | High voltage switch cabinet partial discharge on-line monitoring device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |