CN209132374U - A kind of superfrequency partial discharge on-line monitoring system integrated with SF6 gas density is - Google Patents
A kind of superfrequency partial discharge on-line monitoring system integrated with SF6 gas density is Download PDFInfo
- Publication number
- CN209132374U CN209132374U CN201821878359.9U CN201821878359U CN209132374U CN 209132374 U CN209132374 U CN 209132374U CN 201821878359 U CN201821878359 U CN 201821878359U CN 209132374 U CN209132374 U CN 209132374U
- Authority
- CN
- China
- Prior art keywords
- sensor
- partial discharge
- line monitoring
- gas density
- integrated
- 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
Landscapes
- Testing Relating To Insulation (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The utility model discloses a kind of superfrequency partial discharge on-line monitoring system integrated with SF6 gas density is, which includes multiple integrated transducer modules, on-line monitoring host, coaxial cable, monitoring master machine antenna and integrated transducer module antenna.Wherein the superfrequency of integrated transducer module, SF6 gas pressure and temperature sensor use poured with epoxy resin on a flange.On-line monitoring host and integrated transducer all have antenna, are used for transmission SF6 gas density is and temperature data, on-line monitoring host provides power supply by coaxial cable for integrated sensor, while obtaining superfrequency Partial discharge signal by coaxial cable.Partial discharge signal, SF6 gas density is information and the temperature information of the utility model energy while real-time monitoring GIS device, monitoring parameter is complete, integrated sensor module designs save the interface of equipment, have many advantages, such as that reduction site operation cable, reduction hidden danger point, in-site installation is easy, maintenance is simple.
Description
Technical field
The utility model relates to status of electric power monitoring fields, and in particular to a kind of superfrequency partial discharge and SF6 gas are close
Spend integrated on-line monitoring system.
Background technique
GIS device has been run on all over the world extensively since the 1960s is practical.GIS device is not only in height
Pressure, super-pressure field are widely used, and are also used in extra-high voltage field.Compared with conventional open style substation, GIS is set
Standby advantage is that compact-sized, occupied area is small, high reliablity, configures flexible, easy for installation, high safety, environment adapts to
Ability is strong, maintenance workload very little, and the maintenance intervals of main component are not less than 20 years.With the development of economy, people are to electricity
The increase of power capacity requirement, the nervous situation of continuous improvement and urban land to electricity consumption stability requirement, GIS device
Using more and more.
Although GIS has the advantages that higher security reliability, maintenance is small, but processing, transport, assembled in situ etc. are various
Reason makes GIS be inevitably present insulation defect and influences its long-term reliability.Although these small defects are not enough to
Cause to puncture at once when doing power frequency pressure test, but is issued with the development of time in action of high voltage after putting into operation
Raw shelf depreciation even results in insulation breakdown so that defect constantly expands, to cause great threat to equipment safety operation.
There are many testing principles for being currently applied to GIS equipment partial discharge, such as pulse current method, supercritical ultrasonics technology, superfrequency detection method
Deng, wherein superfrequency detection method be in recent years as electronic technology high speed development, detection technique are constantly progressive, it is gradually expanded
A technique direction.
Simultaneously as the production of GIS device, processing and installation etc. reason, at runtime, SF6 can not for electrical equipment
It can leak with avoiding.General SF6 gas leaks out and external humidification is to inside electric appliance infiltration be it is simultaneous,
Leakage declines SF6 gas density is in equipment, and will lead to equipment built-in electrical insulation performance and arc extinction performance reduces, and inside equipment
The moisture content of SF6 gas increases, then will lead to condensation generation.Under arcing, micro H2O and SF6, metal are hydrolyzed
Reaction, generates severe toxicity, corrosive gas, and damage insulation jeopardizes safe operation, it is often more important that the leakage of SF6 is to indoor work
The life security for making personnel constitutes serious threat.Since SF6 gas has colourless, tasteless physical characteristic, it is difficult to be showed
Field staff directly has found, so carrying out real-time monitoring either to the safe operation of electrical equipment or work to SF6 gas
The life security for making personnel all has a very important significance.
Currently, in terms of GIS on-line checking, the Partial discharge signal of some user side series of fortified passes note GIS then installs a set of superfrequency office
Portion's discharge on-line monitoring system；Some user side series of fortified passes gas injection body leakages, then install a set of SF6 gas density on-line checking system
System；Both some users may pay close attention to, then install this two systems simultaneously.Whether which kind of scheme, all Shortcomings, mainly
It embodies as follows:
(1) SF6 gas density is information either in the Partial discharge signal or gas chamber of GIS device, is all directly related to GIS
The operation conditions of equipment, all has very important effect, and influences each other, therefore, no matter separately installed any online
Detection system, it is all incomplete in the presence of detection parameter, have ignored other important condition informations；
(2) part website superfrequency partial discharge monitoring system and SF6 gas density is on-line detecting system are all installed,
Then there are two systems and deposit, increases complexity on installation, O&M, cause to waste in cost；Due to superfrequency partial discharge
Sensor and SF6 gas density is sensor are separated, then sensor interface and site operation line in the GIS device that has been multiplied
The quantity of cable, while some hidden danger are also increased, if connector increases, gas leakage hidden danger point is increased, the increase of cable causes
There are the hidden danger of Electrical Safety by user；
(3) due in existing system, superfrequency partial discharge monitoring system and SF6 gas density is on-line checking
System is two sets of independent systems, the two generally existing biggish delay, i.e. poor synchronization in terms of acquisition, therefore is examined in failure
When disconnected, failure reason analysis, the risk that increases erroneous judgement, fail to judge.
Summary of the invention
In order to overcome the disadvantages and deficiencies of the prior art, the utility model provides a kind of superfrequency partial discharge and SF6 gas is close
Integrated on-line monitoring system is spent, after the system, the ultrahigh frequency partial discharge signal of energy while on-line checking GIS device,
SF6 gas density is and temperature signal, detection parameter is more complete, and installation is simpler, and maintenance is more convenient.
In order to achieve the above object, the invention adopts the following technical scheme:
The utility model discloses a kind of superfrequency partial discharge on-line monitoring system integrated with SF6 gas density is, including it is more
A integrated transducer module, the on-line monitoring host for sending acquisition instructions and reception processing sensing data, coaxial electrical
Cable, monitoring master machine antenna and integrated transducer module antenna,
Described coaxial cable one end is connected with integrated transducer module and provides power supply, other end and on-line monitoring
Host be connected, the monitoring master machine antenna with monitor on-line host be connected, the integrated transducer module antenna with it is integrated
Sensor module is connected,
The integrated transducer module includes for detecting the extra-high of the ultrahigh-frequency signal of GIS equipment partial discharge generation
Video sensor, the pressure sensor for detecting SF6 gas pressure, the temperature sensor for detecting temperature, flange, sensor
Sealing box, O-ring seal and control box, the temperature sensor and pressure sensor are fixed on the inside of flange, and the pressure passes
The end face of sensor is exposed and is sealed using O-ring seal；The control box is fixed on flange, passes through signal wire and the pressure
Sensor, temperature sensor, the connection of extra-high video sensor, the pressure sensor, temperature sensor and extra-high video sensor are equal
Sealing is in sensor sealing box.
The pressure sensor, temperature sensor, extra-high video sensor are all made of asphalt mixtures modified by epoxy resin as a preferred technical solution,
Rouge sealing is in sensor sealing box.
The control box includes controlling box shell and control circuit board as a preferred technical solution, outside the control box
Shell dustproof and waterproof grade is IP65.
The extra-high video sensor uses detection frequency range for 300MHz-3000MHz's as a preferred technical solution,
Extra-high video sensor.
The pressure sensor uses detection range for the surface absolute pressure type of 0.01~1MPa as a preferred technical solution,
Piezoresistive transducer.
The temperature sensor uses detection range for -50~100 DEG C of temperature sensing as a preferred technical solution,
Device.
Coaxial cable shielding layer ground connection as a preferred technical solution, the coaxial cable and extra-high video sensor it
Between be connected by capacitance.
433M is used between the monitoring master machine antenna and integrated transducer module antenna as a preferred technical solution,
Communication or ZigBee communication mode transmit gas density data, and take master slave mode, and on-line monitoring host is done
For the host of wireless transmission, integrated transducer module is each to have unique different address by oneself as slave.
The superfrequency partial discharge and SF6 gas density is integrated transducer pass through built-in as a preferred technical solution,
Mode is arranged in GIS device.
It is set on the inside of the flange as a preferred technical solution, there are two sensor fixing hole position, a fixed hole position is used
In placing temperature sensor, another fixed hole position is used for placement force sensor, fills out between the temperature sensor and flange
Fill heat conductive silica gel.
The utility model compared with prior art, is had the following advantages and beneficial effects:
1, the superfrequency partial discharge of the utility model on-line monitoring system integrated with SF6 gas density is can real-time monitoring simultaneously
Superfrequency partial discharge information, SF6 gas density is information and temperature information, detection parameter is complete, and is shown using on-line monitoring host
With processing data, the information such as energy across comparison, longitudinal comparison superfrequency Partial discharge signal, SF6 gas density is and temperature are more advantageous to
Accident analysis.
2, the superfrequency partial discharge of the utility model on-line monitoring system integrated with SF6 gas density is, it is a set of due to taking
System monitors superfrequency partial discharge information, SF6 gas density is information and temperature information simultaneously, and the synchronism of data acquisition is higher, is
Fault type recognition, the detection means of failure reason analysis offer more reliable data and science of GIS device, reduction erroneous judgement,
It fails to judge risk, improves the accuracy of diagnosis.
3, superfrequency partial discharge sensor and SF6 gas density is sensor are encapsulated in by the integrated transducer of the utility model
It is not only that monitoring host both provides ultrahigh-frequency signal, while providing gas density data, relative to existing on the same ring flange
For technical solution, the sensor interface of half had both been saved, a large amount of site operation cable has been decreased, efficiently solves use
Family be concerned about because the problems such as live cabling caused by more than cable is difficult and GIS device sensor interface is few, reached and both simplified
In-site installation process, the workload for reducing maintenance but also with economy, reduce the advantages of risk.
4, all the sensors use poured with epoxy resin sealing, more secure and reliable in the utility model.
Detailed description of the invention
Fig. 1 is the integrated on-line monitoring system composition block diagram of the utility model；
Fig. 2 is the integrated transducer modular structure schematic diagram of the utility model.
Wherein, 1-control box；2-flanges；3-sensor sealing boxes；4-extra-high video sensors；5-warm pressure sensings
Device；6-temperature sensors；7-coaxial cables；8-antennas；9-O-ring seals.
Specific embodiment
Present invention will now be described in further detail with reference to the embodiments and the accompanying drawings, but embodiments of the present invention are unlimited
In this.
As described in Figure 1, the present embodiment provides a kind of superfrequency shelf depreciations applied to GIS device and SF6 gas density
Integrated on-line monitoring system, system include integrated transducer module 1 (usually N is 4,6 to integrated transducer module N
Or 8), on-line monitoring host, coaxial cable, monitoring master machine antenna and integrated transducer module antenna.The coaxial cable one
End is connected with integrated transducer module and provides power supply, and other end is connected with on-line monitoring host, the monitoring host
Antenna is connected with on-line monitoring host, and the integrated transducer module antenna is connected with integrated transducer module.
In the present embodiment, it monitors host on-line and integrated transducer module all has the antenna of wireless transmission, be used for
SF6 gas density is and temperature data are transmitted, on-line monitoring host is continuously integrated transducer module by coaxial cable and provides
DC5V power supply, while obtaining by coaxial cable the superfrequency Partial discharge signal of the integrated transducer module.
As shown in Fig. 2, a kind of superfrequency partial discharge of the present embodiment includes: with SF6 gas density is integrated transducer module
Control box 1, flange 2, sensor sealing box 3, extra-high video sensor 4, pressure sensor 5, temperature sensor 6, coaxial cable 7,
Antenna 8, O-ring seal 9.
In the present embodiment, survey in flange there are two sensor fixing hole position, one for placing temperature sensor, one
Placement force sensor wherein fills heat conductive silica gel between temperature sensor and flange, pressure sensor end face is exposed, passes through O
Type sealing ring provides primary seal；
In the present embodiment, pressure sensor, temperature sensor, extra-high video sensor pass through epoxy resin and pour sealing
In sensor sealing box；The through-hole that its signal wire passes through among flange passes through, and is connected to control box；
In the present embodiment, extra-high video sensor detection frequency range is 300MHz-3000MHz；
In the present embodiment, pressure sensor takes surface absolute pressure type piezoresistive transducer, and detection range is -50~100
℃；
In the present embodiment, gas pressure sensor detection range is 0.01~1MPa；
In the present embodiment, coaxial cable both provides DC power supply for control box, and fuse voltage is DC5V, and shielded layer is
Ground, while controlling in box and being connected to extra-high video sensor with coaxial cable by a capacitance, realize superfrequency partial discharge letter
Number transmission；
In the present embodiment, control box is made of shell and control circuit board, and shell has the dustproof and waterproof of IP65 grade
Defencive function.In the control box, is realized by cable and electrically connected with pressure sensor, temperature sensor, extra-high video sensor
It connects.
In the present embodiment, superfrequency partial discharge is pacified by the way of built-in with SF6 gas density is integrated transducer module
In GIS device.Superfrequency partial discharge and SF6 gas density is integrated transducer inside modules have data acquisition, calculate function
Energy, wireless communication function, can be calculated corresponding SF6 by temperature compensation algorithm for collected temperature, pressure data
Gas density result (calculation method of utilization is the prior art, is not innovated to this part), then mode will by wireless communication
On-line monitoring host is given in data.The communication takes 433M communication or ZigBee communication mode,
And master slave mode is taken, on-line monitoring host is as the host of wireless transmission, and integrated transducer module is as slave, and host
All there is unique different address with integrated transducer module, be read out by address and response.
In the present embodiment, on-line monitoring host has wireless communication, data storage, data displaying, fault warning, data
Upload function, wherein data upload in a manner of network transmission, and specification is IEC61850 or customized communication protocol.
In the present embodiment, on-line monitoring host one acquisition process is as shown in Fig. 2, be described as follows:
(1) host-initiated one acquisition process is monitored on-line first；
(2) it monitors on-line inside host and issues superfrequency partial discharge acquisition, is i.e. starting superfrequency partial discharge acquires function；
(3) superfrequency partial discharge data are read；
(4) SF6 gas density is and heat command in integrated transducer module are wirelessly read, and is once read
The data for taking a sensor, according to presetting sequence of addresses from 1 to N poll；
(5) judge whether all to read and complete, enter if reading completion in next step, otherwise return to third step, continue
Read data；
(6) after having read, corresponding data analysis and data storage are carried out；
(7) it according to scheduled warning strategies, is alerted if this result is exceeded, otherwise continue to the next step；
(8) so far one acquisition is completed.
In the present embodiment, integrated transducer module workflow is as follows:
(1) integrated transducer module is powered on and initialized, and carries out self-test and parameter configuration etc.；
(2) then starting acquires function, acquires the data and temperature data of pressure sensor；
(3) according to scheduled temperature compensation algorithm, collected data are calculated, it is close to find out current SF6 gas
Degree, and result is locally stored；
(4) if detect on-line monitoring host reading data command, wirelessly upload this SF6 gas density is and
Temperature value；
(5) so far, one acquisition terminates.Second step is then returned to, acquisition next time is started.
The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, other any changes, modifications, substitutions, combinations, simplifications made without departing from the spirit and principles of the present invention,
It should be equivalent substitute mode, be included within the scope of the present invention.
Claims (10)
1. a kind of superfrequency partial discharge on-line monitoring system integrated with SF6 gas density is characterized by comprising multiple one
Change sensor module, for sending acquisition instructions and receiving on-line monitoring host, the coaxial cable, monitoring of processing sensing data
Master machine antenna and integrated transducer module antenna,
Described coaxial cable one end is connected with integrated transducer module and provides power supply, other end and on-line monitoring host
It is connected, the monitoring master machine antenna is connected with on-line monitoring host, the integrated transducer module antenna and integrated sensing
Device module is connected,
The integrated transducer module includes keeping pouring in for detecting the extra-high of ultrahigh-frequency signal of GIS equipment partial discharge generation
Sensor, the pressure sensor for detecting SF6 gas pressure, the temperature sensor for detecting temperature, flange, sensor sealing
Box, O-ring seal and control box, the temperature sensor and pressure sensor are fixed on the inside of flange, the pressure sensor
End face it is exposed and using O-ring seal seal；The control box is fixed on flange, passes through signal wire and the pressure sensing
Device, temperature sensor, the connection of extra-high video sensor, the pressure sensor, temperature sensor and the equal sealing of extra-high video sensor
In sensor sealing box.
2. superfrequency partial discharge on-line monitoring system integrated with SF6 gas density is according to claim 1, feature exist
In the pressure sensor, temperature sensor, extra-high video sensor are all made of epoxy resin sealing in sensor sealing box.
3. superfrequency partial discharge on-line monitoring system integrated with SF6 gas density is according to claim 1, feature exist
In the control box includes control box shell and control circuit board, and the control box shell dustproof and waterproof grade is IP65.
4. superfrequency partial discharge on-line monitoring system integrated with SF6 gas density is according to claim 1, feature exist
In the extra-high video sensor uses detection frequency range for the extra-high video sensor of 300MHz-3000MHz.
5. superfrequency partial discharge on-line monitoring system integrated with SF6 gas density is according to claim 1, feature exist
In the pressure sensor uses detection range for the surface absolute pressure type piezoresistive transducer of 0.01~1MPa.
6. superfrequency partial discharge on-line monitoring system integrated with SF6 gas density is according to claim 1, feature exist
Use detection range for -50~100 DEG C of temperature sensor in, the temperature sensor.
7. superfrequency partial discharge on-line monitoring system integrated with SF6 gas density is according to claim 1, feature exist
In the coaxial cable shielding layer ground connection is connected between the coaxial cable and extra-high video sensor by a capacitance.
8. superfrequency partial discharge on-line monitoring system integrated with SF6 gas density is according to claim 1, feature exist
In using 433M communication or ZigBee communication mode between monitoring master machine antenna and integrated transducer module antenna
Gas density data are transmitted, and take master slave mode, monitor host of the host as wireless transmission, integrated transducer on-line
Module is each to have unique different address by oneself as slave.
9. superfrequency partial discharge on-line monitoring system integrated with SF6 gas density is according to claim 1-8,
It is characterized in that, GIS device is arranged in by built-in mode with SF6 gas density is integrated transducer in the superfrequency partial discharge
In.
10. superfrequency partial discharge on-line monitoring system integrated with SF6 gas density is according to claim 1-8,
It is characterized in that, being set on the inside of the flange there are two sensor fixing hole position, a fixed hole position is used to place temperature sensor,
Another fixed hole position is used for placement force sensor, fills heat conductive silica gel between the temperature sensor and flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821878359.9U CN209132374U (en) | 2018-11-15 | 2018-11-15 | A kind of superfrequency partial discharge on-line monitoring system integrated with SF6 gas density is |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821878359.9U CN209132374U (en) | 2018-11-15 | 2018-11-15 | A kind of superfrequency partial discharge on-line monitoring system integrated with SF6 gas density is |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209132374U true CN209132374U (en) | 2019-07-19 |
Family
ID=67245272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821878359.9U Active CN209132374U (en) | 2018-11-15 | 2018-11-15 | A kind of superfrequency partial discharge on-line monitoring system integrated with SF6 gas density is |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209132374U (en) |
-
2018
- 2018-11-15 CN CN201821878359.9U patent/CN209132374U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100533081C (en) | Switch cabinet contact temperature monitoring and alarming system | |
| CN103576057B (en) | Insulated on-line monitoring system and method | |
| CN203688725U (en) | On-line power cable insulating monitoring device | |
| CN204854975U (en) | Cubical switchboard temperature on -line monitoring system | |
| CN102901908B (en) | Cable operation information monitoring system and implement method thereof | |
| CN101762333B (en) | High-voltage power line wireless temperature acquisition system | |
| CN103453998B (en) | A kind of self-energizing radio temperature sensor and its implementation | |
| CN110553801B (en) | Multifunctional gas density monitor and system based on edge calculation | |
| CN102891533B (en) | A kind of 800kV intelligent breaker | |
| CN110441681B (en) | High-medium-voltage precise remote gas density relay and gas density monitoring system | |
| CN201051018Y (en) | Switch case contact temperature monitoring and alarming system | |
| CN104133157A (en) | High-voltage line failure indication and failure automatic positioning system | |
| CN203856470U (en) | Submersible underground temperature and pressure measurement device | |
| CN110412226A (en) | A kind of high-precision gas density monitor and system based on edge calculations | |
| CN206773053U (en) | A kind of novel intelligent wireless monitoring device for cross connection grounding | |
| CN207423387U (en) | A kind of cable intermediate joint temperature based on temperature difference method rises on-Line Monitor Device | |
| CN209132374U (en) | A kind of superfrequency partial discharge on-line monitoring system integrated with SF6 gas density is | |
| CN110411894B (en) | Gas density monitoring system | |
| CN210720051U (en) | Overvoltage-resistant gas density transmitter and monitoring system | |
| CN203349964U (en) | Self-energy-obtaining wireless temperature sensing chip | |
| CN104316134A (en) | Method and system for monitoring oil level of oil-immersed high-voltage electrical apparatus | |
| CN110927540A (en) | C-GIS intelligent partial discharge monitoring device based on electrified display | |
| CN110702255A (en) | Built-in high-voltage cable joint temperature measuring device | |
| CN105510769A (en) | Power distribution network single-phase ground fault indicator | |
| CN102243917A (en) | Intelligent amorphous-alloy iron-core distribution transformer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |