JP2017146183A5 - - Google Patents
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- JP2017146183A5 JP2017146183A5 JP2016027723A JP2016027723A JP2017146183A5 JP 2017146183 A5 JP2017146183 A5 JP 2017146183A5 JP 2016027723 A JP2016027723 A JP 2016027723A JP 2016027723 A JP2016027723 A JP 2016027723A JP 2017146183 A5 JP2017146183 A5 JP 2017146183A5
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- 239000011347 resin Substances 0.000 claims description 78
- 229920005989 resin Polymers 0.000 claims description 78
- 238000010292 electrical insulation Methods 0.000 claims description 35
- 239000002344 surface layer Substances 0.000 claims description 21
- 239000000463 material Substances 0.000 claims description 20
- 238000002405 diagnostic procedure Methods 0.000 claims description 13
- 238000005259 measurement Methods 0.000 claims description 6
- 239000000805 composite resin Substances 0.000 claims description 5
- 238000009413 insulation Methods 0.000 claims 13
- 238000003745 diagnosis Methods 0.000 claims 2
- 239000011256 inorganic filler Substances 0.000 claims 2
- 229910003475 inorganic filler Inorganic materials 0.000 claims 2
- 239000000203 mixture Substances 0.000 claims 2
- 230000001066 destructive Effects 0.000 claims 1
- 239000000843 powder Substances 0.000 claims 1
- 230000000875 corresponding Effects 0.000 description 1
Description
前記課題を解決するために、例えば特許請求の範囲に記載の構成を採用する。
本願は前記課題を解決する手段を複数含んでいるが、その一例を挙げるならば、通電部位を覆う電気絶縁用樹脂モールドを備えた電気機器の診断方法であって、前記電気機器の通電による熱的負荷で生じる、前記電気絶縁用樹脂モールドの表層部にかかる応力を測定する第１の工程と、予め作成した、前記電気絶縁用樹脂モールドの表層部にかかる応力と、前記電気絶縁用樹脂モールドと前記通電部位との界面部における前記電気絶縁用樹脂モールドにかかる応力との応力比をデータベース化したデータベースに基づいて、前記第１の工程で得た表層部にかかる応力の測定結果を、前記電気絶縁用樹脂モールドと前記通電部位との界面部における前記電気絶縁用樹脂モールドにかかる応力に変換する第２の工程と、前記第２の工程で得た界面部における前記電気絶縁用樹脂モールドにかかる応力を、前記電気絶縁用樹脂モールドの相当経過年数に変換する第３の工程と、を備える電気絶縁用樹脂モールドを備えた電気機器の診断方法である。
In order to solve the problem, for example, the configuration described in the claims is adopted.
The present application includes a plurality of means for solving the above-described problems. For example, a method for diagnosing an electric device including an electrically insulating resin mold that covers a current-carrying site, the heat generated by energization of the electric device. A first step of measuring the stress applied to the surface layer portion of the resin mold for electrical insulation, which is caused by a mechanical load, the stress applied to the surface layer portion of the resin mold for electrical insulation created in advance, and the resin mold for electrical insulation And the measurement result of the stress applied to the surface layer part obtained in the first step, based on a database in which the stress ratio of the stress applied to the resin mold for electrical insulation at the interface part between the current-carrying part and the stress is applied to the database. a second step of converting the stress applied to the electrically insulating resin mold at the interface portion between the conducting portion and the electrically insulating resin mold, the interface obtained in the second step The stress applied to the electrically insulating resin mold in a third step and the diagnostic method of an electric apparatus provided with an electrically insulating resin mold with a to be converted to the corresponding number of years elapsed the electrically insulating resin mold.
また、他の一例を挙げるならば、通電部位を覆う電気絶縁用樹脂モールドを備えた電気機器の診断システムであって、前記電気機器の通電による熱的負荷で生じる、前記電気絶縁用樹脂モールドの表層部にかかる応力を測定する表層部応力測定装置と、前記電気絶縁用樹脂モールドの表層部にかかる応力と、前記電気絶縁用樹脂モールドと前記通電部位との界面部における前記電気絶縁用樹脂モールドにかかる応力との応力比をデータベース化した応力比データベースと、前記電気絶縁用樹脂モールドから切り出した複合樹脂材料の試験片に対する、繰り返し引っ張り応力による疲労寿命試験から求めた材料疲労定数をデータベース化した材料疲労定数データベースと、前記表層部応力測定装置で得た表層部にかかる応力の測定結果を、前記応力比データベースを参照して、界面部における前記電気絶縁用樹脂モールドにかかる応力に変換する界面部応力算出部と、前記界面部応力算出部で得た界面部における前記電気絶縁用樹脂モールドにかかる応力を、前記材料疲労定数データベースを参照して、前記電気絶縁用樹脂モールドの相当経過年数に変換する相当経過年数算出部と、を備える電気絶縁用樹脂モールドを備えた電気機器の診断システムである。
Another example is a diagnostic system for an electrical device that includes an electrically insulating resin mold that covers a current-carrying part, and the electrical insulating resin mold that is generated by a thermal load caused by the electrical current of the electrical device. a surface portion stress measuring apparatus for measuring the stress on the surface layer portion, wherein the stress in the surface layer of the electrically insulating resin mold, the electrically insulating resin mold at the interface portion between the conducting portion and the electrically insulating resin mold a stress ratio database stress ratio of stress to a database, the relative test piece of the composite resin material cut from the electrically insulating resin mold, a database of material fatigue constant obtained from the fatigue life test by repeated tensile stress The material fatigue constant database and the measurement result of the stress applied to the surface layer part obtained by the surface layer part stress measuring device, Referring to force ratio database, the interface unit stress calculating unit which converts the stress applied to the electrically insulating resin mold in the interface unit, according to the electrically insulating resin mold at the interface portion obtained at the interface unit stress calculating section A diagnostic system for an electrical device including an electrical insulation resin mold, comprising: an equivalent age calculation unit that converts stress into an equivalent age of the electrical insulation resin mold with reference to the material fatigue constant database. .
Claims (15)
前記電気機器の通電による熱的負荷で生じる、前記電気絶縁用樹脂モールドの表層部にかかる応力を測定する第１の工程と、
予め作成した、前記電気絶縁用樹脂モールドの表層部にかかる応力と、前記電気絶縁用樹脂モールドと前記通電部位との界面部における前記電気絶縁用樹脂モールドにかかる応力との応力比をデータベース化したデータベースに基づいて、前記第１の工程で得た表層部にかかる応力の測定結果を、前記電気絶縁用樹脂モールドと前記通電部位との界面部における前記電気絶縁用樹脂モールドにかかる応力に変換する第２の工程と、
前記第２の工程で得た界面部における前記電気絶縁用樹脂モールドにかかる応力を、前記電気絶縁用樹脂モールドの相当経過年数に変換する第３の工程と、
を備える電気絶縁用樹脂モールドを備えた電気機器の診断方法。 A method for diagnosing an electrical device including a resin mold for electrical insulation covering an energized site ,
A first step of measuring a stress applied to a surface layer portion of the resin mold for electrical insulation, which is caused by a thermal load caused by energization of the electrical equipment;
The stress ratio between the stress applied to the surface layer of the resin mold for electrical insulation and the stress applied to the resin mold for electrical insulation at the interface between the resin mold for electrical insulation and the current-carrying part was created in a database. Based on the database, the measurement result of the stress applied to the surface layer portion obtained in the first step is converted into the stress applied to the electrical insulation resin mold at the interface between the electrical insulation resin mold and the energized portion. A second step;
A third step of converting the stress applied to the resin mold for electrical insulation at the interface obtained in the second step into an equivalent elapsed time of the resin mold for electrical insulation;
A diagnostic method for an electrical device comprising a resin mold for electrical insulation comprising:
前記第１の工程で行う、前記電気絶縁用樹脂モールドの表層部にかかる応力の測定は、通電による熱負荷状態にある前記電気機器に対し、非破壊で、前記電気絶縁用樹脂モールドの表層部にかかる応力を測定することを特徴とする電気絶縁用樹脂モールドを備えた電気機器の診断方法。 In the diagnostic method of the electric equipment provided with the resin mold for electric insulation according to claim 1,
The measurement of the stress applied to the surface layer portion of the electrical insulating resin mold performed in the first step is nondestructive with respect to the electrical device in a thermal load state by energization, and the surface layer portion of the electrical insulating resin mold. A method for diagnosing an electrical device provided with a resin mold for electrical insulation, characterized by measuring a stress applied to the wire.
前記電気絶縁用樹脂モールドは、無機充填材料を配合する複合樹脂材料であり、前記無機充填材料は、結晶構造を有する粉末材料であることを特徴とする電気絶縁用樹脂モールドを備えた電気機器の診断方法。 In the diagnostic method of the electric equipment provided with the resin mold for electric insulation according to claim 1,
The electrical insulating resin mold is a composite resin material containing an inorganic filler, and the inorganic filler is a powder material having a crystal structure. Diagnosis method.
前記第２の工程は、表層部にかかる応力と界面部にかかる応力との応力比をデータベース化した応力比データベースを参照して、前記電気絶縁用樹脂モールドと前記通電部位との界面部における前記電気絶縁用樹脂モールドにかかる応力を求めることを特徴とする電気絶縁用樹脂モールドを備えた電気機器の診断方法。 In the diagnostic method of the electric equipment provided with the resin mold for electric insulation according to claim 1,
The second step refers to the stress ratio database stress ratio was database of the stress applied to the stress and the interface unit according to the surface layer portion, wherein the interface portion between the conducting portion and the electrically insulating resin mold A method for diagnosing an electric device provided with the resin mold for electrical insulation, characterized by obtaining stress applied to the resin mold for electrical insulation.
前記表層部にかかる応力と界面部にかかる応力との応力比は、有限要素法の熱応力解析によって得た、前記電気絶縁用樹脂モールドの表層部から界面部にかけての応力分布から求めることを特徴とする電気絶縁用樹脂モールドを備えた電気機器の診断方法。 In the diagnostic method of the electric equipment provided with the resin mold for electric insulation according to claim 4,
The stress ratio between the stress applied to the surface layer portion and the stress applied to the interface portion is obtained from the stress distribution from the surface layer portion to the interface portion of the resin mold for electrical insulation obtained by thermal stress analysis of the finite element method. The diagnostic method of the electric equipment provided with the resin mold for electrical insulation.
前記応力比は、前記電気機器の寸法、出力、通電状態で関数化されていることを特徴とする電気絶縁用樹脂モールドを備えた電気機器の診断方法。 In the diagnostic method of the electric equipment provided with the resin mold for electric insulation according to claim 4,
The method of diagnosing an electric device having an electrically insulating resin mold, wherein the stress ratio is functionalized according to the size, output, and energized state of the electric device.
前記第３の工程は、電気絶縁用樹脂モールドから切り出した複合樹脂材料の試験片に対する、繰り返し引っ張り応力による疲労寿命試験から求めた材料疲労定数によるものであり、該材料疲労定数をデータベース化した材料疲労定数データベースを参照して、前記電気絶縁用樹脂モールドの相当経過年数を求めることを特徴とする電気絶縁用樹脂モールドを備えた電気機器の診断方法。 In the diagnostic method of the electric equipment provided with the resin mold for electric insulation according to claim 1,
The third step is based on a material fatigue constant obtained from a fatigue life test by repeated tensile stress on a test piece of a composite resin material cut out from a resin mold for electrical insulation, and a material in which the material fatigue constant is databased A method for diagnosing an electrical device equipped with an electrically insulating resin mold, wherein an equivalent age of the electrically insulating resin mold is obtained by referring to a fatigue constant database.
前記材料疲労定数は、前記電気絶縁用樹脂モールドの材料組成によって関数化されていることを特徴とする電気絶縁用樹脂モールドを備えた電気機器の診断方法。 In the diagnostic method of the electric equipment provided with the resin mold for electric insulation according to claim 7,
The method for diagnosing an electric device provided with the resin mold for electrical insulation, wherein the material fatigue constant is functionalized by a material composition of the resin mold for electrical insulation.
前記第３の工程で得られる、前記電気絶縁用樹脂モールドの相当経過年数と、前記電気機器の設計寿命との差分をとることで、前記電気機器の余寿命を求めることを特徴とする電気絶縁用樹脂モールドを備えた電気機器の診断方法。 In the diagnostic method of the electric equipment provided with the resin mold for electric insulation according to claim 1,
The electrical insulation characterized in that the remaining life of the electrical device is obtained by taking the difference between the equivalent elapsed years of the resin mold for electrical insulation obtained in the third step and the design life of the electrical device. Method for electrical equipment with resin molds for use.
前記電気機器は、変圧器、開閉器、モータまたはインバータであることを特徴とする電気絶縁用樹脂モールドを備えた電気機器の診断方法。 In the diagnostic method of the electric equipment provided with the resin mold for electric insulation according to claim 1,
The electrical device is a transformer, a switch, a motor, or an inverter, and is a diagnostic method for an electrical device provided with an electrically insulating resin mold.
前記電気機器の通電による熱的負荷で生じる、前記電気絶縁用樹脂モールドの表層部にかかる応力を測定する表層部応力測定装置と、
前記電気絶縁用樹脂モールドの表層部にかかる応力と、前記電気絶縁用樹脂モールドと前記通電部位との界面部における前記電気絶縁用樹脂モールドにかかる応力との応力比をデータベース化した応力比データベースと、
前記電気絶縁用樹脂モールドから切り出した複合樹脂材料の試験片に対する、繰り返し引っ張り応力による疲労寿命試験から求めた材料疲労定数をデータベース化した材料疲労定数データベースと、
前記表層部応力測定装置で得た表層部にかかる応力の測定結果を、前記応力比データベースを参照して、界面部における前記電気絶縁用樹脂モールドにかかる応力に変換する界面部応力算出部と、
前記界面部応力算出部で得た界面部における前記電気絶縁用樹脂モールドにかかる応力を、前記材料疲労定数データベースを参照して、前記電気絶縁用樹脂モールドの相当経過年数に変換する相当経過年数算出部と、
を備える電気絶縁用樹脂モールドを備えた電気機器の診断システム。 A diagnostic system for an electrical device including a resin mold for electrical insulation covering an energized site ,
A surface layer part stress measuring device for measuring a stress applied to a surface layer part of the resin mold for electrical insulation, which is caused by a thermal load caused by energization of the electrical device;
And the stress applied to the surface portion of the electrically insulating resin mold, the stress ratio database with a database of stress ratio of the stress on the electrically insulating resin mold at the interface portion between the conducting portion and the electrically insulating resin mold ,
And materials fatigue constant database to the test piece of the composite resin material cut from the electrically insulating resin mold, a database of material fatigue constant obtained from the fatigue life test by repeated tensile stress,
An interface stress calculation unit that converts a stress measurement result applied to the surface layer part obtained by the surface layer part stress measurement device into a stress applied to the electrical insulating resin mold at the interface with reference to the stress ratio database;
Calculating the equivalent elapsed time for converting the stress applied to the resin mold for electrical insulation at the interface obtained by the interface stress calculator to the equivalent age of the resin mold for electrical insulation with reference to the material fatigue constant database And
A diagnostic system for electrical equipment comprising a resin mold for electrical insulation.
前記表層部応力測定装置は、通電による熱負荷状態にある前記電気機器に対し、非破壊で、前記電気絶縁用樹脂モールドの表層部にかかる応力を測定するものであることを特徴とする電気絶縁用樹脂モールドを備えた電気機器の診断システム。 In the diagnostic system of the electric equipment provided with the resin mold for electric insulation according to claim 11,
The surface layer stress measuring device measures the stress applied to the surface layer of the resin mold for electrical insulation in a non-destructive manner with respect to the electrical equipment in a heat load state due to energization. System for electrical equipment with resin molds for use.
前記応力比は、電気機器の寸法、出力、通電状態で関数化されていることを特徴とする電気絶縁用樹脂モールドを備えた電気機器の診断システム。 In the diagnostic system of the electric equipment provided with the resin mold for electric insulation according to claim 11,
The electrical stress diagnosis system comprising an electrically insulating resin mold, wherein the stress ratio is functionalized according to dimensions, output, and energized state of the electrical equipment.
前記材料疲労定数は、電気絶縁用樹脂モールドから切り出した複合樹脂材料の試験片に対する、繰り返し引っ張り応力による疲労寿命試験の結果得られる疲労寿命曲線から求めたものであることを特徴とする電気絶縁用樹脂モールドを備えた電気機器の診断システム。 In the diagnostic system of the electric equipment provided with the resin mold for electric insulation according to claim 11,
The material fatigue constant is obtained from a fatigue life curve obtained as a result of a fatigue life test by repeated tensile stress on a test piece of a composite resin material cut out from a resin mold for electrical insulation. A diagnostic system for electrical equipment with a resin mold.
前記材料疲労定数は、電気絶縁用樹脂モールドの材料組成によって関数化されていることを特徴とする電気絶縁用樹脂モールドを備えた電気機器の診断システム。 In the diagnostic system of the electric equipment provided with the resin mold for electric insulation according to claim 11,
The material fatigue constant is functionalized according to the material composition of the resin mold for electrical insulation, and the diagnostic system for an electrical device provided with the resin mold for electrical insulation.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016027723A JP6668101B2 (en) | 2016-02-17 | 2016-02-17 | Diagnostic method and diagnostic system for electrical equipment provided with resin mold for electrical insulation |
| TW106104064A TW201730553A (en) | 2016-02-17 | 2017-02-08 | Diagnostic method and diagnostic system for electrical appliance provided with resin mold for electrical insulation |
| PCT/JP2017/004619 WO2017141793A1 (en) | 2016-02-17 | 2017-02-08 | Diagnostic method and diagnostic system for electrical appliance provided with resin mold for electrical insulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016027723A JP6668101B2 (en) | 2016-02-17 | 2016-02-17 | Diagnostic method and diagnostic system for electrical equipment provided with resin mold for electrical insulation |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2017146183A JP2017146183A (en) | 2017-08-24 |
| JP2017146183A5 true JP2017146183A5 (en) | 2018-10-11 |
| JP6668101B2 JP6668101B2 (en) | 2020-03-18 |
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| JP (1) | JP6668101B2 (en) |
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| JP2004012270A (en) * | 2002-06-06 | 2004-01-15 | Meidensha Corp | Method of measuring internal strain of molded article |
| JP2005259771A (en) * | 2004-03-09 | 2005-09-22 | Sony Corp | Device and method for correcting pattern |
| JP4630201B2 (en) * | 2005-02-28 | 2011-02-09 | 株式会社神戸製鋼所 | Stress estimation method for structural members |
| JP4710701B2 (en) * | 2006-04-18 | 2011-06-29 | 富士電機システムズ株式会社 | Deterioration diagnosis method and apparatus for polymer material |
| JP5962443B2 (en) * | 2012-11-06 | 2016-08-03 | 日立金属株式会社 | Method and apparatus for predicting cable breakage life |
| WO2015132838A1 (en) * | 2014-03-03 | 2015-09-11 | 株式会社日立製作所 | Method and device for displaying material fatigue of machine |
| CN104056968A (en) * | 2014-05-11 | 2014-09-24 | 湖南大学 | Die structure optimizing method taking service life into account |
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