CN103630813B - A kind of method of solid insulation conductor insulation live monitoring - Google Patents
A kind of method of solid insulation conductor insulation live monitoring Download PDFInfo
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- CN103630813B CN103630813B CN201310654435.3A CN201310654435A CN103630813B CN 103630813 B CN103630813 B CN 103630813B CN 201310654435 A CN201310654435 A CN 201310654435A CN 103630813 B CN103630813 B CN 103630813B
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Abstract
A kind of method of solid insulation conductor insulation live monitoring, belongs to insulating monitoring field.Its solid insulation conductor shield to be measured and " " between an Insulation monitoring instrument is set；When the normal charging operation of solid insulation conductor to be measured, On-line sampling system and record described solid insulation conductor screen layer and " " between running current；By setting up the service data figure/table of solid insulation conductor device to be measured, determine normal region and the abnormal area of solid insulation conductor running status to be measured；By to described service data figure/table and the screen layer of described solid insulation conductor and " " between the comparison of running current actual measured value, in real time, the state of insulation of on-line monitoring solid insulation to be measured conductor.Solid insulation conductor can be provided quantitatively by it, monitoring means qualitatively, can avoid the transformer serious insulation fault of generation low-pressure side, be favorably improved the operational reliability of power distribution network.Can be widely used for the status monitoring field of solid insulation conductor.
Description
Technical field
The invention belongs to insulating monitoring field, particularly relate to the charged of a kind of insulating properties for solid insulation conductor
Monitoring method.
Background technology
Solid insulation conductor (solid insulated busbar for example with sealing version) is that a kind of novel high-capacity is defeated
Electricity conductive equipment, is usually used in power load center EHV transformer low-voltage side outlet loop, city, defeated to power distribution network
Send power.
Middle buckling controller switching equipment uses solid insulation conductor, it is possible to obtains more preferable insulating reliability, can reduce equipment
Take up room, contribute to realizing the miniaturization of distribution equipment/device, it is possible to that reduces for equipment is disposable
Investment.
Owing to easy maintenance, the occupation of land space of solid insulation conductor are little, in-site installation easy construction, in large size city
Obtaining in the underground substation of electrical network and indoor substation and be widely used.
The safe operation of solid insulation conductor not only relation power distribution network operational reliability, and due to solid insulation conductor
Being positioned at transformer low voltage side outlet, when it breaks down, fault current is very big, will also result in transformer huge
Impact, may cause transformer fault, it is necessary to pay attention to the operational management of the type conductor time serious.
Owing to solid insulation conductor belongs to novel conductor form, at present effective monitoring is lacked for solid insulation conductor
Means, currently running way to manage is simple, only by visual and sense of hearing inspection, quantitatively or even qualitatively monitors
Means.
Summary of the invention
The technical problem to be solved is to provide a kind of method of solid insulation conductor insulation live monitoring, its
Use the insulation detecting method of live monitoring, solid insulation conductor is carried out effective insulating monitoring, enrich high electricity
The live detection means of pressure equipment, can avoid the transformer serious insulation fault of generation low-pressure side, can lead solid insulation
Body provides quantitatively or even qualitatively monitoring means, contributes to the safe operation of solid insulation conductor and improves middle voltage distribution networks
Overall operational reliability.
The technical scheme is that a kind of method that solid insulation conductor insulation live monitoring is provided, it is characterized in that:
Solid insulation conductor to be measured screen layer and " " between, an Insulation monitoring instrument is set；Record to be measured solid
The real-time traffic information of body insulated electric conductor equipment, accumulates historical data；In the normal charged fortune of solid insulation conductor to be measured
Row state under, On-line sampling system and record described solid insulation conductor screen layer and " " between operation
Electric current；By collecting the historical data of solid insulation conductor device operation information to be measured, and solid insulation to be measured is led
Running current data under body normal charging operation state, set up the service data figure of solid insulation conductor device to be measured
/ table, determines normal region and the abnormal area of solid insulation conductor running status to be measured；By to described operation number
According to figure/table and the screen layer of described solid insulation conductor and " " between the comparison of running current actual measured value,
In real time, the state of insulation of on-line monitoring solid insulation to be measured conductor.
Concrete, the operation information of its described solid insulation conductor device to be measured at least includes electric network swim situation, has
Merit power, reactive power, the working voltage of solid insulation conductor to be measured and running current.
Its described Insulation monitoring instrument is earth current meter.
The screen layer of its described solid insulation conductor and " " between running current include single-phase or three-phase operation is electric
Stream.
Further, its described solid insulation conductor screen layer and " " between running current be ground connection run
Electric current.
It is described " " it is grounded screen or the earthing pole wire of transformer station.
Described live monitoring method is by detecting screen layer and grounded screen or the earthing pole of solid insulation conductor to be measured
Ground connection running current between wire, monitors described solid insulation conductor insulation against ground state in the energized state.
Compared with the prior art, the invention have the advantage that
1. the technical program carries out online insulating monitoring in real time to solid insulation conductor, supervises for solid insulation conductive state
Survey and high voltage installation status monitoring provides a kind of new monitoring method；
2. the technical program achieves the on-line monitoring to solid insulation conductor running status, for judging that equipment runs shape
State provides quantitative analysis standard；
3. utilizing earth lead to measure the state of insulation of solid insulation conductor, operation equipment is monitored work does not has
Potential safety hazard, can the personal safety of protection personnel and the safety of monitoring device.
Accompanying drawing explanation
Fig. 1 is the connection diagram of measurement apparatus of the present invention.
In figure, 1 is the conductor of solid insulation conductor, and 2 is the screen layer of solid insulation conductor, and 3 lead for solid insulation
The insulating barrier of body, 4 is ammeter, 5 be " ".
Detailed description of the invention
The present invention will be further described below in conjunction with the accompanying drawings.
Shown in Fig. 1, technical scheme provides a kind of solid insulation conductor insulation live monitoring
Method, it comprises the following steps:
Solid insulation conductor 1 to be measured screen layer 2 and " " between 5, be provided with an Insulation monitoring instrument
4；
By recording the real-time traffic information of solid insulation conductor device to be measured, accumulate historical data；
When the normal charging operation of solid insulation conductor to be measured, On-line sampling system to record described solid exhausted
The screen layer of edge conductor and " " between running current；
By collecting the historical data of solid insulation conductor device operation information to be measured, and solid insulation conductor to be measured
Running current data under normal charging operation state, set up the service data figure of solid insulation conductor device to be measured/
Table, determines normal region and the abnormal area of solid insulation conductor running status to be measured；
By to described service data figure/table and the screen layer of described solid insulation conductor and " " between run electricity
The comparison of stream actual measured value, real-time, the state of insulation of on-line monitoring solid insulation to be measured conductor.
Wherein, the operation information of described solid insulation conductor device to be measured at least includes electric network swim situation, wattful power
Rate, reactive power, the working voltage of solid insulation conductor to be measured and running current.
Its described Insulation monitoring instrument is earth current meter.
The screen layer of its described solid insulation conductor and " " between running current include single-phase or three-phase operation is electric
Stream.
Further, its described solid insulation conductor screen layer and " " between running current be ground connection run
Electric current.
It is described " " it is grounded screen or the earthing pole wire of transformer station.
Described live monitoring method is by detecting screen layer and grounded screen or the earthing pole of solid insulation conductor to be measured
Ground connection running current between wire, monitors described solid insulation conductor insulation against ground state in the energized state.
At present in actual moving process, lack monitoring means effective for solid insulation conductor, operational management side
Formula is simple, only by visually and sense of hearing inspection, less than the most quantitatively or even qualitatively monitoring means.By the technical program
Solid insulation conductor insulation monitoring method so that the dielectric strength of solid insulation conductor, particularly at charging operation shape
State under state is monitored.By solid insulation conductor is carried out effective insulating monitoring, enrich high voltage and set
Standby live detection means, it is to avoid the transformer serious insulation fault of generation low-pressure side, improve middle voltage distribution networks conscientiously
Operational reliability, has great Social benefit and economic benefit.
The insulation system of solid insulation conductor takes screen layer and insulating materials composite construction, screen layer uniform conductor pair
Ground and insulating materials internal electric field are distributed, and are connected with grounded screen by earth lead.By monitoring screen layer and grounded screen
Between or earth lead between running current (really running earth current), can monitor that solid insulation conductor is exhausted
Edge state.
The technical program, according to the research to solid insulation conductor online monitoring data, determines the threshold with break-up value
Value, specifies demand value and the warning value of Monitoring Data so that insulated monitoring method can accurately judge that equipment runs shape
State.
1) actual when implementing, the collection of data is carried out according to following monitoring step:
The first step: collect solid insulation conductor device operation information, including: electric network swim situation, active power,
The real time information such as reactive power, working voltage, running current, for Analysis on monitoring data；
Second step: determine position, solid insulation conductor current monitoring point, checks equipment ground situation, finds interference source,
Anomalous event is avoided to affect measurement result；
3rd step: measure single-phase conductor Monitoring Data, measures three-phase conductor Monitoring Data, comprehensively analyzes data result,
Search operation exception conductor.
2) data analysing method:
Accumulation historical data, compares monitor value and history value；
Contrast interphased data, than relatively similar operating mode machine operation；
Composite measurement result, draws particular device service data figure/table, determines that running status is normal and abnormal area；
3) the operational monitoring standard of solid insulation conductor:
Comparison equipment operating data figure/table, judges equipment running status according to monitoring result.
The solid insulation conductive state monitoring method that the technical program is provided, it is achieved that solid insulation conductor is run
The on-line monitoring of state, for judging that equipment running status provides quantitative analysis standard；It utilizes earth lead to measure
Solid insulation conductor insulation state, professional is monitored work to operation equipment does not has potential safety hazard, protects
The person and equipment safety；This monitoring method utilizes ripe detecting instrument (earth current meter), is not limited by field condition
System, it is also possible to install fixing Condition Monitoring Data collecting device, it is adaptable to all solids insulated electric conductor equipment is entered
Row is online and live monitoring.
The method can be widely used in the status monitoring field of solid insulation conductor.
Claims (4)
1. a method for solid insulation conductor insulation live monitoring, is characterized in that:
Solid insulation conductor to be measured screen layer and " " between, an Insulation monitoring instrument is set；
Record the real-time traffic information of solid insulation conductor to be measured, accumulate historical data；
When the normal charging operation of solid insulation conductor to be measured, treat described in On-line sampling system record
Survey solid insulation conductor screen layer and " " between running current；
By collecting the historical data of solid insulation conductor operation information to be measured, and solid insulation to be measured is led
Running current data under body normal charging operation state, set up the service data figure of solid insulation conductor to be measured/
Table, determines normal region and the abnormal area of solid insulation conductor running status to be measured；
By to the screen layer of described service data figure/table and described solid insulation conductor to be measured with " " it
Between the comparison of running current actual measured value, in real time, the state of insulation of on-line monitoring solid insulation conductor to be measured；
Wherein, the operation information of described solid insulation conductor to be measured at least includes electric network swim situation, wattful power
Rate, reactive power, the working voltage of solid insulation conductor to be measured and running current；
Described Insulation monitoring instrument is earth current meter；
Described " " it is grounded screen or the earthing pole wire of transformer station；
The method of described solid insulation conductor insulation live monitoring, uses the insulation detecting method of live monitoring,
Solid insulation conductor is carried out effective insulating monitoring, enriches the live detection means of high voltage installation, can avoid
The serious insulation fault of transformer generation low-pressure side, can provide monitoring means qualitatively and quantitatively to solid insulation conductor,
Contribute to the safe operation of solid insulation conductor and improve the operational reliability that middle voltage distribution networks is overall.
2. according to the method for the solid insulation conductor insulation live monitoring described in claim 1, it is characterized in that described in treat
Survey solid insulation conductor screen layer and " " between running current include single-phase or three-phase operation electric current.
3. according to the method for the solid insulation conductor insulation live monitoring described in claim 1, it is characterized in that described in treat
Survey solid insulation conductor screen layer and " " between running current be ground connection running current.
4., according to the method for the solid insulation conductor insulation live monitoring described in claim 1, it is characterized in that described
Between live monitoring method screen layer and grounded screen or earthing pole wire by detection solid insulation conductor to be measured
Ground connection running current, monitor described solid insulation conductor insulation against ground state in the energized state.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310654435.3A CN103630813B (en) | 2013-12-05 | 2013-12-05 | A kind of method of solid insulation conductor insulation live monitoring |
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| CN201310654435.3A CN103630813B (en) | 2013-12-05 | 2013-12-05 | A kind of method of solid insulation conductor insulation live monitoring |
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| CN103630813A CN103630813A (en) | 2014-03-12 |
| CN103630813B true CN103630813B (en) | 2016-08-31 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5471144A (en) * | 1993-09-27 | 1995-11-28 | Square D Company | System for monitoring the insulation quality of step graded insulated high voltage apparatus |
| CN2718591Y (en) * | 2004-05-17 | 2005-08-17 | 西安交通大学 | Dielectric loss on-line monitoring device for capacitive electric equipment |
| CN202351381U (en) * | 2011-11-24 | 2012-07-25 | 北京弘浩达牵引电气有限公司 | Insulation detecting device for service cable |
| CN202916392U (en) * | 2013-01-30 | 2013-05-01 | 梁红军 | Online monitoring system for partial discharge of switch cabinet based on pulse current method and grounding electric wave method |
| CN203299337U (en) * | 2013-06-24 | 2013-11-20 | 长沙理工大学 | High voltage XLPE cable insulation on-line monitoring device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3657064B2 (en) * | 1996-08-30 | 2005-06-08 | 財団法人東北電気保安協会 | High voltage insulation constant monitoring device |
-
2013
- 2013-12-05 CN CN201310654435.3A patent/CN103630813B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5471144A (en) * | 1993-09-27 | 1995-11-28 | Square D Company | System for monitoring the insulation quality of step graded insulated high voltage apparatus |
| CN2718591Y (en) * | 2004-05-17 | 2005-08-17 | 西安交通大学 | Dielectric loss on-line monitoring device for capacitive electric equipment |
| CN202351381U (en) * | 2011-11-24 | 2012-07-25 | 北京弘浩达牵引电气有限公司 | Insulation detecting device for service cable |
| CN202916392U (en) * | 2013-01-30 | 2013-05-01 | 梁红军 | Online monitoring system for partial discharge of switch cabinet based on pulse current method and grounding electric wave method |
| CN203299337U (en) * | 2013-06-24 | 2013-11-20 | 长沙理工大学 | High voltage XLPE cable insulation on-line monitoring device |
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