CN109239547A - A kind of method and device measuring high-tension cable operating status - Google Patents
A kind of method and device measuring high-tension cable operating status Download PDFInfo
- Publication number
- CN109239547A CN109239547A CN201810986970.1A CN201810986970A CN109239547A CN 109239547 A CN109239547 A CN 109239547A CN 201810986970 A CN201810986970 A CN 201810986970A CN 109239547 A CN109239547 A CN 109239547A
- Authority
- CN
- China
- Prior art keywords
- cable
- parameter
- tension cable
- operating status
- tension
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000007689 inspection Methods 0.000 claims abstract description 24
- 238000004458 analytical method Methods 0.000 claims abstract description 14
- 230000007257 malfunction Effects 0.000 claims abstract description 7
- 238000001514 detection method Methods 0.000 claims description 39
- 238000005259 measurement Methods 0.000 claims description 21
- 230000005611 electricity Effects 0.000 claims description 12
- 238000012360 testing method Methods 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 6
- 239000012212 insulator Substances 0.000 claims description 4
- 239000004020 conductor Substances 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 2
- 238000002955 isolation Methods 0.000 claims description 2
- 229910052573 porcelain Inorganic materials 0.000 claims description 2
- 230000003862 health status Effects 0.000 abstract description 11
- 230000008901 benefit Effects 0.000 abstract description 9
- 238000012423 maintenance Methods 0.000 abstract description 8
- 238000011156 evaluation Methods 0.000 abstract description 6
- 238000009413 insulation Methods 0.000 description 9
- 238000012544 monitoring process Methods 0.000 description 7
- 238000010276 construction Methods 0.000 description 6
- 230000007547 defect Effects 0.000 description 6
- 230000007704 transition Effects 0.000 description 6
- 238000005452 bending Methods 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- 230000015556 catabolic process Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 238000005070 sampling Methods 0.000 description 4
- 230000001360 synchronised effect Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000012351 Integrated analysis Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 238000009529 body temperature measurement Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000013307 optical fiber Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000700 radioactive tracer Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000001052 transient effect Effects 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000003534 oscillatory effect Effects 0.000 description 1
- 238000003909 pattern recognition Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
- G01R31/1263—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation
- G01R31/1272—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation of cable, line or wire insulation, e.g. using partial discharge measurements
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Relating To Insulation (AREA)
Abstract
This application discloses a kind of method and devices for measuring high-tension cable operating status, which comprises acquires the basic parameter of high-tension cable, makes an inspection tour parameter, system fault probability parameter and history run parameter;According to the basic parameter, parameter, system fault probability parameter and history run parameter are maked an inspection tour, analysis and early warning is carried out to high-tension cable operating status.The invention has the advantages that realizing simple, it is tested and analyzed by four physical parameter, inspection parameter, probability of malfunction parameter, historical operating parameter aspects, assess to scientific system high-tension cable operation health status, fundamentally solve the evaluation problem of cable health status, effective high-tension cable Strategies of Maintenance is formed, cable safety in operation is greatly improved.High-tension cable can be effectively managed, the operating status of cable is accomplished to know what's what, the cable that can be extended service in the army is made full use of, obtains more preferable economic benefit.
Description
Technical field
The present invention relates to a kind of method and devices for measuring high-tension cable operating status.
Background technique
As high-tension cable is using increasingly extensive, for running the age from cable, some high-tension cables are had been running for
In many years, health status management is very necessary and be badly in need of, furthermore in recent years due to construction and installation defect, product quality it is bad and
The reasons such as operation and maintenance are improper, breakdown fault occurs within projected life for Voltage Cable Lines Construction causes the number of power outage also big
Amount increases, and operation stability and power supply reliability to city electric line bring challenge.Cable runs external rings at present
Border constantly deteriorates, and bad cable construction technique, improper maintenance etc. can all generate cable health status very important hidden in addition
Suffer from, high-tension cable failure happened occasionally in recent years.Problem above seriously threatens the safe operation of power grid, but spend huge fund and
The great whole old cables of engineering replacement are clearly very difficult and extremely uneconomic, therefore, are highly desirable to carry out high-voltage electricity
The thoroughly evaluating of cable health status and management study are reduced even so that the reliability service to high-tension cable is effectively tracked
Prevent the serious accident of high-tension cable.
The prior art generally carries out high-tension cable operating status by monotechnics means or local physical parameter detection
Measurement, the patent document of CN106646152A discloses a kind of high voltage cable partial discharge detection method and device, will be low
Pressure AC conversion is High Level AC Voltage, is charged using High Level AC Voltage pair and the subject concatenated reactor of high-tension cable;
Judge whether the voltage at reactor both ends reaches predeterminated voltage;If reaching predeterminated voltage, closure is used for cutoff high alternating current
Short switch;It acquires and is tested the local discharge signal that high-tension cable generates under the action of damp oscillatory wave;It is put according to part
Electric signal, the insulation performance of analysis subject high-tension cable.A kind of high-tension cable Partial Discharge Detection provided in an embodiment of the present invention
Method and device detects subject high-tension cable using alternating voltage.The significant drawback of the prior art is: can not be to cable
Health status makes effective Scientific evaluation.Research institution both domestic and external also carried out the evaluation of some high-tension cable health status
The trial of research, but be normally based on some parameters or physical phenomenon when cable is run and studied, it did not carry out complete
Face evaluation and summary can not carry out targeted scientific management to the operating status of cable.
Summary of the invention
The purpose of the present invention is to overcome the above shortcomings and to provide a kind of methods for measuring high-tension cable operating status, in fact
It is now simple, comprehensive effectively assessment can be carried out to the operating status of high-tension cable.
To achieve the goals above, a kind of the technical solution adopted by the present invention are as follows: side for measuring high-tension cable operating status
Method characterized by comprising acquire the basic parameter of high-tension cable, make an inspection tour parameter, system fault probability parameter, and operation
History parameters;According to the basic parameter, parameter, system fault probability parameter and history run parameter are maked an inspection tour, to high-voltage electricity
Cable operating status carries out analysis and early warning.
Another object of the present invention, which also resides in, provides a kind of device for measuring high-tension cable operating status, which is characterized in that
Include: acquisition unit, for receive high-tension cable basic parameter, make an inspection tour parameter, system fault probability parameter, and operation go through
History parameter;Analytical unit, for being joined according to the basic parameter, tour parameter, system fault probability parameter and history run
Number carries out analysis and early warning to high-tension cable operating status.
The invention has the benefit that
It realizes simply, is detected by four physical parameter, inspection parameter, probability of malfunction parameter, historical operating parameter aspects
Analysis assesses to scientific system high-tension cable operation health status, fundamentally solves the evaluation problem of cable health status, shape
At effective high-tension cable Strategies of Maintenance, cable safety in operation is greatly improved.Defect hidden danger existing for cable is integrated
Analysis, obtains the Strategies of Maintenance of standard, avoids the generation of cable serious accident.High-tension cable can be effectively managed, to cable
Operating status accomplish to know what's what, the cable that can be extended service in the army is made full use of, more preferable economic benefit is obtained;To height
The operating status of voltage cable is effectively tracked, and the service life of cable is actively extended;There is needle to the operating status realization of cable
Scientific management to property to greatly improve the safety in operation of cable, and generates bigger economic benefit.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present application, constitutes part of this application, this Shen
Illustrative embodiments and their description please are not constituted an undue limitation on the present application for explaining the application.In the accompanying drawings:
Fig. 1 is the flow diagram of the method for measurement high-tension cable operating status of the invention.
Fig. 2 is the structural schematic diagram of the device of measurement high-tension cable operating status of the invention.
Specific embodiment
As used some vocabulary to censure specific components in the specification and claims.Those skilled in the art answer
It is understood that hardware manufacturer may call the same component with different nouns.This specification and claims are not with name
The difference of title is as the mode for distinguishing component, but with the difference of component functionally as the criterion of differentiation.Such as logical
The "comprising" of piece specification and claim mentioned in is an open language, therefore should be construed to " include but do not limit
In "." substantially " refer within the acceptable error range, those skilled in the art can within a certain error range solve described in
Technical problem basically reaches the technical effect.Specification subsequent descriptions are to implement the better embodiment of the application, so described
Description is being not intended to limit the scope of the present application for the purpose of the rule for illustrating the application.The protection scope of the application
As defined by the appended claims.
Please refer to Fig. 1 to Fig. 2, the method for measurement high-tension cable operating status of the invention, comprising: step S101, acquisition
The basic parameter of high-tension cable makes an inspection tour parameter, system fault probability parameter and history run parameter;Step S102, according to institute
It states basic parameter, make an inspection tour parameter, system fault probability parameter and history run parameter, high-tension cable operating status is carried out
Analysis and early warning.
Preferably, the step of basic parameter of the acquisition high-tension cable includes: acquisition on-pole switch, isolation switch detection
Position, plain conductor detection position, electrical equipment and metal parts connecting portion, metal parts and metal parts connecting portion,
Voltage, current transformer detection position, Casing Detection position, arrester checks position, porcelain insulator detection position, composite insulation
Sub- detection position, cable termination detection position, the basic parameter of transformer detection position.
Preferably, the step of tour parameter of the acquisition high-tension cable includes: to carry out distribution line tour, distribution transformer
Device make an inspection tour, switchgear house, box-type substation, ring network cabinet, high voltage cable branch box make an inspection tour, cable machinery make an inspection tour, make somebody a mere figurehead shaft tower and
On-pole switch is maked an inspection tour.
Preferably, further include the steps that storing the tour parameter.
Preferably, the step of acquisition system probability of malfunction parameter includes: to generate electric current using current feedback circuit, will be electric
Flow-generator and detection cable are connected to become circuit, by carrying out multiple electric current inspection to detection cable part suspected malfunctions section
It surveys, according to current measurement value compared with the nominal value of current feedback circuit output electric current.
Preferably, the step of acquisition system probability of malfunction parameter includes: and using pulse cable failure tester and surpasses
One end of low-frequency high-voltage generator, pulse cable failure tester and ultra-low frequency high-pressure generator connects, and ultra-low frequency high-pressure occurs
The other end of device is connect with high-tension cable disk, and high-tension cable disk is connect with cable under test, and the ground line of detection device, which is connected to, to be connect
On ground device, when test, high-tension cable disk is connect with cable under test, by earthing or grounding means by pulse cable failure tester and
The grounded part system earth of ultra-low frequency high-pressure generator, generator provide working power to pulse cable failure tester, into
Row fault detection.
Preferably, it is described acquisition history run parameter include: acquire high-tension cable operation signal amplitude intensity data and
Duration, and carry out time weighted.
Preferably, described that analysis and early warning is carried out including judging that whether super the weighted result is electric to high-tension cable operating status
The standard value of cable operating status.
Referring to figure 2., the device of measurement high-tension cable operating status of the invention, comprising: acquisition unit 101, for connecing
It receives the basic parameter of high-tension cable, make an inspection tour parameter, system fault probability parameter and history run parameter;Analytical unit 102,
For being transported to high-tension cable according to the basic parameter, tour parameter, system fault probability parameter and history run parameter
Row state carries out analysis and early warning.
As the embodiment of extension, pass through current transformer I, voltage transformer I, current transformer II, voltage transformer
II and the cooperation of GPS receiver module can acquire the current signal and voltage signal of high-tension cable two sides simultaneously, by electricity
Stream signal and voltage signal obtain corresponding current value and voltage value after being handled, and then obtain the leakage electricity of cable major insulation
The complementary angle of the phase angle difference of stream and voltage cable.
Three-phase high-voltage is measured simultaneously as the embodiment of extension, including by current transformer I and current transformer II
The current signal at cable both ends, current signal pass through the first signal processing circuit and Multi-path synchronous sampling ADC and second signal respectively
Processing circuit and Multi-path synchronous sampling ADC are sent to microprocessor and accessory circuit after handling current signal, microprocessor and
Current signal is transmitted to main control unit by wireless transmission unit by accessory circuit, obtains the difference of current value.
As the embodiment of extension, three-phase high-voltage cable two is measured by voltage transformer I and voltage transformer II simultaneously
The voltage signal at end, voltage signal pass through the first signal processing circuit and Multi-path synchronous sampling ADC and second signal processing respectively
Circuit and Multi-path synchronous sampling ADC are sent to microprocessor and accessory circuit after handling voltage signal, microprocessor and attached
Voltage signal is transmitted to main control unit by wireless transmission unit by circuit, acquires voltage cable value.
As the embodiment of extension, main control unit passes through the difference of the current value acquired and voltage cable value is situated between
Matter loss angle, and then dielectric dissipation factor is obtained, the dielectric level of three-phase high-voltage cable is monitored by dielectric dissipation factor.
As the embodiment of extension, the temperature of three-phase high-voltage cable is obtained in real time by optical fiber temperature-measurement cable and thermometric host
Degree, is sent to main control unit for temperature signal.
As the embodiment of extension, the temperature of transition joint is monitored by temperature sensor, temperature sensor believes temperature
Number main control unit is sent to by signal processing unit.
As the embodiment of extension, main control unit passes through dielectric dissipation factor, cable temperature and Joint Temperature
Change real-time monitoring high voltage supply cable.
As the embodiment of extension, the device of measurement high-tension cable operating status of the invention includes that pulse cable failure is surveyed
Try instrument and ultra-low frequency high-pressure generator, one end connection of pulse cable failure tester and ultra-low frequency high-pressure generator, ultralow frequency
The other end of high pressure generator is connect with high-tension cable disk, and high-tension cable disk is connect with cable under test.Pulse cable fault test
The ground line of instrument and ultra-low frequency high-pressure generator is connected on earthing or grounding means.
As the embodiment of extension, the device of measurement high-tension cable operating status of the invention further include cable tracer,
Device is pricked in examination safely for cable fault pinpoint instrument, cable identifier and cable, is individually positioned in operating platform and is specified region, cable
Path instrument, cable fault pinpoint instrument, cable identifier and the cable ground line that device is pricked in examination safely are connected in ground connection dress in parallel
It sets.
As the embodiment of extension, the device of measurement high-tension cable operating status of the invention is equipped with generator, power generation
Machine to pulse cable failure tester, cable tracer, cable fault pinpoint instrument, cable identifier and cable, prick safely by examination
Device provides working power.
As the embodiment of extension, high-voltage cable insulating parameter is acquired, in high-tension cable operational process, it is difficult to avoid to send out
Raw insulation parameter reduction, some reductions are normal, controllable aging, and some reductions are that improper parameter is mutated.
As the embodiment of extension, the fault parameter in high-voltage cable joint operational process, high-voltage cable joint hair are acquired
Raw probability of failure is much higher than cable body, either terminals or transition joint, and main cause is the quality of end itself
There are problem or fabrication and installation technological problems or operation and maintenance method are improper, there are also temperature and humidities when repairing not to meet regulation rule
It is fixed, cause terminals, transition joint moisture convergence in end, some ends impregnate in water for a long time, eventually lead to absolutely
Edge dampness breakdown, causes failure.
As the embodiment of extension, the parameter of external environment locating for high-tension cable is acquired, comprising: first is that being in construction site
In high-tension cable, it is relatively high that accounting for for damage failure occurs for such cable;Second is that due to shapes such as power grid construction, overhauls of the equipments
It powers at substation's single supply, another way inlet wire cable there is high risk, once cable fault, will cause substation's whole station to be lost
Electricity;Third is that, once influencing by the external world, cable is same for same substation, the cable machinery of the same ditch directly buried installation of same user
When failure will cause fault spread.
As the embodiment of extension, manufacture, the life index of high-tension cable are acquired, according to life equation, there is a service life
Index n Value requires n >=9 in the world.
As the embodiment of extension, high-tension cable laying, bending radius parameter, China standard GB/T 50168- are acquired
92, " electric device installing engineering, cable run construction and acceptance specification " dictates electricity laying radius: single 20D, multicore
15D.In cable biddings numerous at present, some is required to meet bending radius 10D, but Bloomsbury benefit company is crosslinked 275KV
In 105 DEG C of temperature laying, conductor compresses insulation and is allowed to deformation up to 10%(2.5mm) cable, and if overload temperature is claimed to reach
To 130 DEG C, then general bending radius is not all right, is greater than 30D.This test is published in international bulk power grid report in 1984, is
It is 25D that the 220KV of this our country, which hands over news cable regulation minimum bending radius,.So bending radius is also to influence cable life
A factor, cannot ignore.
As the embodiments of extension, high-tension cable operation, overload parameters are acquired, operating condition when referring to more than 90 DEG C is overloaded,
There are short circuit, short-term and emergency overload, is the influence of temperature;Overvoltage refers to more than highest operating voltage;There is switching overvoltage, has
Lightning surge is the influence of voltage.Overvoltage is overloaded, influence cable life.DC experiment has been found to crosslinked cable
Nocuousness, the mainly influence of space charge, especially medium and high voltage cable.It is handed over since test voltage absolute value height is easier to damage
Connection insulation, space charge, it is easy to during direct-current discharge, or in high pressure idle operation then, cause insulation breakdown.
It as the embodiment of extension, is detected by cable local discharge, dielectric loss, acquires the operating status ginseng of cable
Number, to predict cable life.The high voltage electric equipments such as cable are under the action of high voltage, the electric discharge of built-in electrical insulation generation.
This discharge exists only in the local location of insulation, entire insulation connectivity breakdown or flashover will not be formed immediately, so being known as
Shelf depreciation.Partial discharge quantity is very faint, and the intuition by people is felt, as eye see ear and listen be it is imperceptible, only sensitivity is very
High measurement of partial discharge instrument could it detects that.
As the embodiment of extension, the detection of shelf depreciation passes through energy table using various phenomenons caused by partial discharge as foundation
The physical quantity of the phenomenon is stated to characterize the state of partial discharge.Insulator arrangement is many along with occurring when shelf depreciation occurs for inside
Physics and chemical phenomenon.Some belong to electricity, such as electric pulse, dielectric loss increase, electromagenetic wave radiation;Some belong to non-electrical
, such as ultrasonic wave, light, heat, corresponding detection method can be divided into electrometric method and non-electrometric method two major classes, such as pulse electricity
Stream method, high-frequency detection method, ultra-high-frequency detection method, ultrasonic Detection Method, flash spotting, chemical measure, Infrared Detection Method, transient state
A variety of detection methods such as voltage.Wherein put into practical application has pulse current method, high-frequency detection method, ultra-high-frequency detection method, surpasses
Acoustic wave detection, transient earth voltage etc..
As the embodiment of extension, the hyperfrequency of partial discharge test system real-time detection high-tension cable, is penetrated ultrasonic wave
Frequently, high frequency partial discharge signal;High-tension cable defect can be made according to the characteristic value of partial discharge to judge in advance;More intuitive spectrum is provided
Map analysis function provides important analysis foundation for partial discharge pattern-recognition;Mobile communication and number can be effectively identified when partial discharge detection
Interference of the word TV band to local discharge signal;Have noise jamming pulse suppression function, effectively filters out background noise;Pass through
Positioning device cooperates monitoring software, the position of the shelf depreciation monitored can be locked, to effectively debug.
As the embodiment of extension, electricity that the HF current transformer being mounted in grounding box on earth cable will sense
Stream signal is allocated as three tunnel and gives Partial discharge signal frequency measurement circuit, Partial discharge signal ionization meter circuit and low frequency ground connection electricity respectively
Flow circuitry for signal measurement;Intelligent monitoring terminal is distinguished according to the input signal of Partial discharge signal frequency measurement circuit according to the duration
Burst pulse Partial discharge signal is sent out for high frequency Partial discharge signal and wink;Partial discharge ionization meter circuit measuring signal strength is triggered simultaneously, it will be high
Frequency Partial discharge signal frequency, intensity carry out time weighted, obtain high-tension cable defect rank;Burst pulse Partial discharge signal will be sent out wink on time
Between cycle count;For being more than to preset defect rank and step-by-step counting setting value conduct alarm state information;It will sense
The low frequency signal interface that the low-frequency current signal that should be arrived has transmission cable to be connected to intelligent monitoring terminal obtains after being AD converted
Current data judges the state being directly grounded according to preset value;Gas sensor, Temperature Humidity Sensor and the water level of outside installation
The signal of alarm is converted by intelligent monitoring terminal, judges whether super setting gas concentration limit value, humidity limit value and water
Alarm virtual value in position exports alarm state information if transfiniting value;It is mounted on the optical fiber temperature-measurement sensing at cable intermediate joint position
Signal is passed to single-chip microcontroller by photoelectric conversion and is AD converted by device, gained temperature value and Joint Temperature limit value ratio
Compared with, if transfiniting definite value, output alarm condition;The office for the ultrasonic probe detection transition joint installed outside transition joint armored cassette
Portion's discharge signal passes to single-chip microcontroller at pulse signal by preposition amplification and logarithmic detector circuit conversion, with transition joint office
It puts limit value to compare, alarm condition is exported if transfiniting;All data and alarm state information are sent to by wireless GPRS module
Remote monitoring server;The monitoring computer for being connected to remote monitoring server can refresh these data and state by webpage
Information.
The invention has the advantages that
It realizes simply, is detected by four physical parameter, inspection parameter, probability of malfunction parameter, historical operating parameter aspects
Analysis assesses to scientific system high-tension cable operation health status, fundamentally solves the evaluation problem of cable health status, shape
At effective high-tension cable Strategies of Maintenance, cable safety in operation is greatly improved.Defect hidden danger existing for cable is integrated
Analysis, obtains the Strategies of Maintenance of standard, avoids the generation of cable serious accident.High-tension cable can be effectively managed, to cable
Operating status accomplish to know what's what, the cable that can be extended service in the army is made full use of, more preferable economic benefit is obtained;To height
The operating status of voltage cable is effectively tracked, and the service life of cable is actively extended;There is needle to the operating status realization of cable
Scientific management to property to greatly improve the safety in operation of cable, and generates bigger economic benefit.
Above description shows and describes several preferred embodiments of the present application, but as previously described, it should be understood that the application
Be not limited to forms disclosed herein, should not be regarded as an exclusion of other examples, and can be used for various other combinations,
Modification and environment, and the above teachings or related fields of technology or knowledge can be passed through in application contemplated scope described herein
It is modified.And changes and modifications made by those skilled in the art do not depart from spirit and scope, then it all should be in this Shen
It please be in the protection scope of appended claims.
Claims (9)
1. a kind of method for measuring high-tension cable operating status characterized by comprising
It acquires the basic parameter of high-tension cable, make an inspection tour parameter, system fault probability parameter and history run parameter;
According to the basic parameter, parameter, system fault probability parameter and history run parameter are maked an inspection tour, high-tension cable is transported
Row state carries out analysis and early warning.
2. the method for measurement high-tension cable operating status according to claim 1, which is characterized in that the acquisition high-voltage electricity
The step of basic parameter of cable includes: acquisition on-pole switch, isolation switch detection position, and plain conductor detection position is electrically set
It is standby with metal parts connecting portion, metal parts and metal parts connecting portion, voltage, current transformer detection position, casing
Detection position, arrester checks position, porcelain insulator detection position, composite insulator detection position, cable termination detection position,
The basic parameter of transformer detection position.
3. the method for measurement high-tension cable operating status according to claim 2, which is characterized in that the acquisition high-voltage electricity
The step of tour parameter of cable includes: to carry out distribution line tour, and distribution transformer is maked an inspection tour, switchgear house, box-type substation, looped network
Cabinet, high voltage cable branch box are maked an inspection tour, and cable machinery is maked an inspection tour, and make somebody a mere figurehead shaft tower and on-pole switch is maked an inspection tour.
4. the method for measurement high-tension cable operating status according to claim 3, which is characterized in that further include being patrolled described
The step of being stored depending on parameter.
5. the method for measurement high-tension cable operating status according to claim 2, which is characterized in that the acquisition system event
The step of hindering probability parameter includes: to generate electric current using current feedback circuit, and current feedback circuit and detection cable are connected to become back
Road, by carrying out multiple current detecting to detection cable part suspected malfunctions section, according to current measurement value and current feedback circuit
The nominal value of output electric current compares.
6. the method for measurement high-tension cable operating status according to claim 2, which is characterized in that the acquisition system event
The step of hindering probability parameter includes: using pulse cable failure tester and ultra-low frequency high-pressure generator, and pulse cable failure is surveyed
The one end for trying instrument and ultra-low frequency high-pressure generator connects, and the other end of ultra-low frequency high-pressure generator is connect with high-tension cable disk, high
Voltage cable disk is connect with cable under test, and the ground line of detection device is connected on earthing or grounding means, when test, by high-tension cable disk with
Cable under test connection, by earthing or grounding means by the grounded part system of pulse cable failure tester and ultra-low frequency high-pressure generator
Ground connection, generator provide working power to pulse cable failure tester, carry out fault detection.
7. the method for measurement high-tension cable operating status according to claim 1, which is characterized in that the acquisition operation is gone through
History parameter includes: to acquire signal amplitude intensity data and the duration of high-tension cable operation, and carry out time weighted.
8. the method for measurement high-tension cable operating status according to claim 1, which is characterized in that described to high-tension cable
It includes the standard value for judging the whether super cable operating status of the weighted result that operating status, which carries out analysis and early warning,.
9. a kind of device for measuring high-tension cable operating status characterized by comprising
Acquisition unit, for receive high-tension cable basic parameter, make an inspection tour parameter, system fault probability parameter, and operation go through
History parameter;
Analytical unit is used for according to the basic parameter, makes an inspection tour parameter, system fault probability parameter and history run parameter,
Analysis and early warning is carried out to high-tension cable operating status.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201810986970.1A CN109239547A (en) | 2018-08-28 | 2018-08-28 | A kind of method and device measuring high-tension cable operating status |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201810986970.1A CN109239547A (en) | 2018-08-28 | 2018-08-28 | A kind of method and device measuring high-tension cable operating status |
Publications (1)
Publication Number | Publication Date |
---|---|
CN109239547A true CN109239547A (en) | 2019-01-18 |
Family
ID=65068501
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201810986970.1A Pending CN109239547A (en) | 2018-08-28 | 2018-08-28 | A kind of method and device measuring high-tension cable operating status |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN109239547A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110208629A (en) * | 2019-06-28 | 2019-09-06 | 国网上海市电力公司 | A kind of automatic fault recognition system for Voltage Cable Lines Construction |
CN112461292A (en) * | 2020-11-16 | 2021-03-09 | 北京航天情报与信息研究所 | Library wiring monitoring method |
CN112862218A (en) * | 2021-03-17 | 2021-05-28 | 广东电网有限责任公司 | Power equipment out-of-service management system |
CN115144707A (en) * | 2022-06-29 | 2022-10-04 | 南方电网科学研究院有限责任公司 | Partial discharge positioning method and device based on optical fiber sensing measurement ultrasonic signal |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN204495933U (en) * | 2015-03-25 | 2015-07-22 | 贵州电网公司六盘水供电局 | Vehicle cable fault integrated test system |
CN105910649A (en) * | 2016-06-08 | 2016-08-31 | 石家庄开发区中实检测设备有限公司 | High voltage cable state monitoring system based on direct grounding box and realization method thereof |
CN106093720A (en) * | 2016-06-08 | 2016-11-09 | 国家电网公司 | High-voltage cable state monitoring system based on protective grounding case and its implementation |
CN106296864A (en) * | 2016-08-05 | 2017-01-04 | 国网山东省电力公司电力科学研究院 | A kind of distribution line intelligent inspection system based on vehicle mobile terminals and method |
CN107797029A (en) * | 2017-10-23 | 2018-03-13 | 贵州开磷集团股份有限公司 | A kind of picking method that failure cable is chosen in a plurality of parallel high-tension cable |
-
2018
- 2018-08-28 CN CN201810986970.1A patent/CN109239547A/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN204495933U (en) * | 2015-03-25 | 2015-07-22 | 贵州电网公司六盘水供电局 | Vehicle cable fault integrated test system |
CN105910649A (en) * | 2016-06-08 | 2016-08-31 | 石家庄开发区中实检测设备有限公司 | High voltage cable state monitoring system based on direct grounding box and realization method thereof |
CN106093720A (en) * | 2016-06-08 | 2016-11-09 | 国家电网公司 | High-voltage cable state monitoring system based on protective grounding case and its implementation |
CN106296864A (en) * | 2016-08-05 | 2017-01-04 | 国网山东省电力公司电力科学研究院 | A kind of distribution line intelligent inspection system based on vehicle mobile terminals and method |
CN107797029A (en) * | 2017-10-23 | 2018-03-13 | 贵州开磷集团股份有限公司 | A kind of picking method that failure cable is chosen in a plurality of parallel high-tension cable |
Non-Patent Citations (1)
Title |
---|
刘军保 等: "基于四因素的高压电缆运行状态评估方法与检修策略研究", 信息技术与信息化, no. 8, pages 174 - 177 * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110208629A (en) * | 2019-06-28 | 2019-09-06 | 国网上海市电力公司 | A kind of automatic fault recognition system for Voltage Cable Lines Construction |
CN112461292A (en) * | 2020-11-16 | 2021-03-09 | 北京航天情报与信息研究所 | Library wiring monitoring method |
CN112862218A (en) * | 2021-03-17 | 2021-05-28 | 广东电网有限责任公司 | Power equipment out-of-service management system |
CN115144707A (en) * | 2022-06-29 | 2022-10-04 | 南方电网科学研究院有限责任公司 | Partial discharge positioning method and device based on optical fiber sensing measurement ultrasonic signal |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN103913679B (en) | High-tension switch cabinet partial discharge monitoring system | |
CN109239547A (en) | A kind of method and device measuring high-tension cable operating status | |
Li et al. | On-line cable condition monitoring using natural power disturbances | |
CN109188197B (en) | Evaluation system and method for health index of high-voltage cable | |
Lim et al. | Fault detection and localization of shielded cable via optimal detection of time–frequency-domain reflectometry | |
CN210071942U (en) | Online grounding network and online grounding resistance monitoring device | |
CN108344917A (en) | The cross interconnected cable on-line fault diagnosis method of 110kV crosslinked polyethylenes based on method of loci | |
CN103913661B (en) | Method for estimating influences on telecommunication cable E1 wire by electromagnetic disturbance | |
CN103712551A (en) | Power distribution network transformer low-voltage winding deformation on-line monitoring device and method | |
CN113985223A (en) | Multi-parameter intelligent identification system of high-voltage dry-type sleeve and application | |
CN108008254A (en) | A kind of Failure Diagnosis of Substation Ground Network method and device | |
Heizmann et al. | On-site partial discharge measurements on premoulded cross-bonding joints of 170 kV XLPE and EPR cables | |
CN112526292A (en) | Distribution cable operation quality examination and test platform | |
Chi et al. | Research on condition assessment of XLPE cable based on signal propagation characteristics | |
Qiang et al. | Field test and analysis of partial discharge on GIS under impulse voltage | |
Zhang et al. | Mechanism of±800 kV HVDC converter abnormal block fault caused by lightning transient | |
Bell et al. | High-voltage onsite commissioning tests for gas-insulated substations using UHF partial discharge detection | |
Tang et al. | Multi-source data-cooperated neutral low-resistance grounding cable grid faulty segment identification | |
CN107677880A (en) | A kind of overvoltage intelligent identifying system based on the monitoring of leakage conductor tail current | |
CN207964994U (en) | Grounding net of transformer substation health status detection device | |
CN108181513B (en) | Inter-phase coupling capacitance testing method and system for lightning arrester based on pilot frequency method | |
Bergius | Implementation of on-line partial discharge measurements in medium voltage cable network | |
CN105223422A (en) | Digital dielectric loss measurement system device and method | |
CN117420393A (en) | Method, system, equipment and storage medium for identifying partial discharge defect of switch cabinet | |
CN105242229A (en) | Fault systematic diagnosis method of photoelectric current transformer |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190118 |