CN106154121A - A kind of cable system insulating fault diagnosis method - Google Patents
A kind of cable system insulating fault diagnosis method Download PDFInfo
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- CN106154121A CN106154121A CN201510143929.4A CN201510143929A CN106154121A CN 106154121 A CN106154121 A CN 106154121A CN 201510143929 A CN201510143929 A CN 201510143929A CN 106154121 A CN106154121 A CN 106154121A
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Abstract
This technology belongs to insulating fault diagnosis method field, is specifically related to a kind of cable system insulating fault diagnosis method.Solve cable system and test the insulation failure detection time length of medium-term and long-term existence, problem that fault rate is high, provide effective method for extensive cable system insulation tube arrester, fully verify the quality of production of cable system, there is great application and popularization value.Obtaining resistance value including test is RS；Carrying out first pair of core point, provide first pair of the most qualified conclusion of core point insulating, test terminates；Switch to down a pair core point, until the insulation tube arrester between cable system all cores point is complete, terminate test.
Description
Technical field
This technology belongs to insulating fault diagnosis method field, is specifically related to a kind of cable system insulation tube arrester side
Method.
Background technology
The model such as weapon, carrier rocket uses extensive cable system, and cable system will be carried out before dispatching from the factory
Insulation, pressure, the conducting test such as resistance, at present, in each model cable system Insulation test be always one numerous
Weight, time-consuming work, traditional method of testing is with megger test insulation, relies on tester and manually carries out
Cable system insulation tube arrester, in test process, personnel are the most tired, produce retest, test leakage, test
Less than etc. problem, solution prevailing for the time being in force is the Insulation test utilizing cable system tester to complete cable system,
This instrument is automatically successively cable core point to be carried out insulation tube arrester, it is not necessary to manual intervention, reduces people
Power cost, but when multichannel continuous insulation is tested, the longest, if instrument diagnostic method imperfection,
The probability of happening of erroneous judgement will be improved.Range test is made to there is hidden danger, for ensureing cable system Insulation test
Correctness and the suitability, in the urgent need to research insulating fault diagnosis method, meet quick, the peace of cable system
Entirely, accurately, the requirement of complete detection, the fully quality of production of checking cable system.
Summary of the invention
It is an object of the invention to: a kind of cable system insulating fault diagnosis method is provided, it is achieved multichannel, fast
Speed, accurately cable system insulation tube arrester.
Technical scheme is as follows: a kind of cable system insulating fault diagnosis method, comprises the steps:
Step one: assume that device temperature degree of stability is TI；Insulation judge limit value as 100M Ω, it is first right to choose
Core point carries out Insulation test for the first time, and it is R that test obtains resistance valueS；
Step 2: if RS1< during 100k Ω；System does not switch core point, and first pair of core point carries out second time
Test, if RS2> 100k Ω, then terminate step 2, again start to perform from first step operation；If surveyed
Examination resistance RS2< 100k Ω then proceeds third time and tests；Reciprocal successively, until the tenth test resistance
RS10< 100k Ω, the most continuous ten test resistances RSIt is respectively less than 100k Ω, provides first pair of core point insulating and do not conform to
Lattice conclusion, test terminates；
Step 3: if 100k were Ω≤RSDuring≤100M Ω；System does not switch core point, if test obtains resistance
Value is R 'S, first pair of core point is carried out continuously 30 minor insulation tests, to test data (1, R 'S1) ...,
(30,R′S30) use least-squares algorithm linear fitting, obtain intercept a and the slope b of straight line；If slope b
≤ device temperature degree of stability TI, providing first pair of defective conclusion of core point insulating, test terminates；If slope b >
Device temperature degree of stability TI, then terminate step 3, again start to perform from first step operation；
Step 4: if 100M is Ω < RSTime；System does not switch core point, and first pair of core point carries out second time
Test, if it is R that test obtains resistance value "SIf, R "S2≤ 100M Ω, then end step four, again from
Single stepping starts to perform；If test resistance R "S2> 100M Ω, then proceed third time and test；Depend on
Secondary back and forth, until the tenth test resistance R "S10> 100M Ω, the most continuous ten test resistances R "SIt is all higher than
100M Ω, provides first pair of qualified conclusion of core point insulating, and test terminates.
Also include step 5 after described step 4: switch to down a pair core point, repeat step one to step 4,
Until the insulation tube arrester between cable system all cores point is complete, terminate test.
The remarkable result of the present invention is: when solving the insulation failure detection that medium-term and long-term existence tested by cable system
Between long, problem that fault rate is high, provide effective method for extensive cable system insulation tube arrester,
Fully verify the quality of production of cable system, there is great application and popularization value.
Detailed description of the invention
A kind of cable system insulating fault diagnosis method, comprises the steps:
Step one: assume that device temperature degree of stability is TI；Insulation judge limit value as 100M Ω, it is first right to choose
Core point carries out Insulation test for the first time, and it is R that test obtains resistance valueS；
Step 2: if RS1< during 100k Ω；System does not switch core point, and first pair of core point carries out second time
Test, if RS2> 100k Ω, then terminate step 2, again start to perform from first step operation；If surveyed
Examination resistance RS2< 100k Ω then proceeds third time and tests；Reciprocal successively, until the tenth test resistance
RS10< 100k Ω, the most continuous ten test resistances RSIt is respectively less than 100k Ω, provides first pair of core point insulating and do not conform to
Lattice conclusion, test terminates；
Step 3: if 100k were Ω≤RSDuring≤100M Ω；System does not switch core point, if test obtains resistance
Value is R 'S, first pair of core point is carried out continuously 30 minor insulation tests, to test data (1, R 'S1) ...,
(30,R′S30) use least-squares algorithm linear fitting, obtain intercept a and the slope b of straight line；If slope b
≤ device temperature degree of stability TI, providing first pair of defective conclusion of core point insulating, test terminates；If slope b >
Device temperature degree of stability TI, then terminate step 3, again start to perform from first step operation；
Step 4: if 100M is Ω < RSTime；System does not switch core point, and first pair of core point carries out second time
Test, if it is R that test obtains resistance value "SIf, R "S2≤ 100M Ω, then end step four, again from
Single stepping starts to perform；If test resistance R "S2> 100M Ω, then proceed third time and test；Depend on
Secondary back and forth, until the tenth test resistance R "S10> 100M Ω, the most continuous ten test resistances R "SIt is all higher than
100M Ω, provides first pair of qualified conclusion of core point insulating, and test terminates.
Step 5: switching to down a pair core point, repetition step one is to step 4, until cable system all cores point
Between insulation tube arrester complete, terminate test.
Claims (2)
1. a cable system insulating fault diagnosis method, it is characterised in that: comprise the steps:
Step one: assume that device temperature degree of stability is TI；Insulation judge limit value as 100M Ω, it is first right to choose
Core point carries out Insulation test for the first time, and it is R that test obtains resistance valueS；
Step 2: if RS1< during 100k Ω；System does not switch core point, and first pair of core point carries out second time
Test, if RS2> 100k Ω, then terminate step 2, again start to perform from first step operation；If surveyed
Examination resistance RS2< 100k Ω then proceeds third time and tests；Reciprocal successively, until the tenth test resistance
RS10< 100k Ω, the most continuous ten test resistances RSIt is respectively less than 100k Ω, provides first pair of core point insulating and do not conform to
Lattice conclusion, test terminates；
Step 3: if 100k were Ω≤RSDuring≤100M Ω；System does not switch core point, if test obtains resistance
Value is R 'S, first pair of core point is carried out continuously 30 minor insulation tests, to test data (1, R 'S1) ...,
(30,R′S30) use least-squares algorithm linear fitting, obtain intercept a and the slope b of straight line；If slope b
≤ device temperature degree of stability TI, providing first pair of defective conclusion of core point insulating, test terminates；If slope b >
Device temperature degree of stability TI, then terminate step 3, again start to perform from first step operation；
Step 4: if 100M is Ω < RSTime；System does not switch core point, and first pair of core point carries out second time
Test, if it is R that test obtains resistance value "SIf, R "S2≤ 100M Ω, then end step four, again from
Single stepping starts to perform；If test resistance R "S2> 100M Ω, then proceed third time and test；Depend on
Secondary back and forth, until the tenth test resistance R "S10> 100M Ω, the most continuous ten test resistances R "SIt is all higher than
100M Ω, provides first pair of qualified conclusion of core point insulating, and test terminates.
A kind of cable system insulating fault diagnosis method the most according to claim 1, it is characterised in that: institute
Also include step 5 after stating step 4: switch to down a pair core point, repeat step one to step 4, until
Insulation tube arrester between cable system all cores point is complete, terminates test.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510143929.4A CN106154121B (en) | 2015-03-30 | 2015-03-30 | A kind of cable system insulating fault diagnosis method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510143929.4A CN106154121B (en) | 2015-03-30 | 2015-03-30 | A kind of cable system insulating fault diagnosis method |
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| CN106154121A true CN106154121A (en) | 2016-11-23 |
| CN106154121B CN106154121B (en) | 2018-11-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510143929.4A Active CN106154121B (en) | 2015-03-30 | 2015-03-30 | A kind of cable system insulating fault diagnosis method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109188214A (en) * | 2018-08-22 | 2019-01-11 | 西南交通大学 | A kind of EP rubbers cable terminal insulation layer typical fault analogy method |
| CN109270568A (en) * | 2018-08-21 | 2019-01-25 | 中广核工程有限公司 | A kind of nuclear power plant's Nuclear Instrument detector and cable performance detection method and system |
Citations (5)
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|---|---|---|---|---|
| JPH0772199A (en) * | 1993-09-01 | 1995-03-17 | Mitsubishi Heavy Ind Ltd | Cable insulation diagnosis method and device |
| CN2814423Y (en) * | 2005-01-18 | 2006-09-06 | 北京铁路局工电大修处天津电务段 | Electric cable insulation tester |
| CN102520316A (en) * | 2011-12-15 | 2012-06-27 | 重庆鸽牌电线电缆有限公司 | Method for quickly and accurately positioning fault point of cable |
| KR101330091B1 (en) * | 2012-09-12 | 2013-11-18 | 이관우 | Method of life-decision for high-voltage cables in operation |
| CN104133137A (en) * | 2014-07-24 | 2014-11-05 | 上海镭隆科技发展有限公司 | Portable cable test device and method |
-
2015
- 2015-03-30 CN CN201510143929.4A patent/CN106154121B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0772199A (en) * | 1993-09-01 | 1995-03-17 | Mitsubishi Heavy Ind Ltd | Cable insulation diagnosis method and device |
| CN2814423Y (en) * | 2005-01-18 | 2006-09-06 | 北京铁路局工电大修处天津电务段 | Electric cable insulation tester |
| CN102520316A (en) * | 2011-12-15 | 2012-06-27 | 重庆鸽牌电线电缆有限公司 | Method for quickly and accurately positioning fault point of cable |
| KR101330091B1 (en) * | 2012-09-12 | 2013-11-18 | 이관우 | Method of life-decision for high-voltage cables in operation |
| CN104133137A (en) * | 2014-07-24 | 2014-11-05 | 上海镭隆科技发展有限公司 | Portable cable test device and method |
Non-Patent Citations (1)
| Title |
|---|
| 徐超等: ""电缆网阻值测试仪的设计与实现"", 《宇航计测技术》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109270568A (en) * | 2018-08-21 | 2019-01-25 | 中广核工程有限公司 | A kind of nuclear power plant's Nuclear Instrument detector and cable performance detection method and system |
| CN109188214A (en) * | 2018-08-22 | 2019-01-11 | 西南交通大学 | A kind of EP rubbers cable terminal insulation layer typical fault analogy method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106154121B (en) | 2018-11-02 |
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