ES2164604A1 - Cylindrical oven for measuring thermally stimulated currents in insulation coverings. - Google Patents
Cylindrical oven for measuring thermally stimulated currents in insulation coverings.Info
- Publication number
- ES2164604A1 ES2164604A1 ES200001300A ES200001300A ES2164604A1 ES 2164604 A1 ES2164604 A1 ES 2164604A1 ES 200001300 A ES200001300 A ES 200001300A ES 200001300 A ES200001300 A ES 200001300A ES 2164604 A1 ES2164604 A1 ES 2164604A1
- Authority
- ES
- Spain
- Prior art keywords
- oven
- thermally stimulated
- cylindrical
- inlets
- insulation coverings
- 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
Landscapes
- Finger-Pressure Massage (AREA)
Abstract
Cylindrical oven for measuring thermally stimulated currents in insulation coverings, consisting of an oven designed to cause polarisation by applying low to high electrical voltages followed by depolarisation by thermal stimulation in the insulating material used on electric cables. The oven consists of two cylindrical sections of constant diameter which, when joined together, form a closed circuit through which air circulates at a controlled temperature. In the upper part of the oven is the glass chamber in which the electrical cable being studied is placed horizontally. This chamber has three inlets on one side separated by a safe distance enabling connections to be made with additional instruments. The first of these inlets contains the high voltage electrode and the others contain the low voltage electrode and the thermal sensor respectively.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES200001300A ES2164604A1 (en) | 2000-05-17 | 2000-05-17 | Cylindrical oven for measuring thermally stimulated currents in insulation coverings. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES200001300A ES2164604A1 (en) | 2000-05-17 | 2000-05-17 | Cylindrical oven for measuring thermally stimulated currents in insulation coverings. |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2164604A1 true ES2164604A1 (en) | 2002-02-16 |
Family
ID=8493626
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES200001300A Pending ES2164604A1 (en) | 2000-05-17 | 2000-05-17 | Cylindrical oven for measuring thermally stimulated currents in insulation coverings. |
Country Status (1)
Country | Link |
---|---|
ES (1) | ES2164604A1 (en) |
Citations (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3096478A (en) * | 1959-08-18 | 1963-07-02 | Okonite Co | Apparatus with conductive gas electrodes for detecting non-uniformity in electrically insulating and electrically semi-conducting materials |
US3263165A (en) * | 1962-10-16 | 1966-07-26 | Okonite Co | Apparatus and method utilizing nonconductive tube means containing an ionized gas for corona testing of insulated electrical cables |
US3418570A (en) * | 1966-08-26 | 1968-12-24 | Henry H. Clinton | Electrical device for testing for and counting flaws in the insulation of an electrical conductor passing through an electrode |
US4244917A (en) * | 1979-05-09 | 1981-01-13 | Conoco, Inc. | Sample pyrolysis oven |
JPS5850475A (en) * | 1981-09-21 | 1983-03-24 | Meidensha Electric Mfg Co Ltd | Testing method for nonlinear resistor of zinc oxide |
JPS5860269A (en) * | 1981-10-05 | 1983-04-09 | Meidensha Electric Mfg Co Ltd | Determination of life for non-linear resistor |
JPS5866069A (en) * | 1981-10-15 | 1983-04-20 | Meidensha Electric Mfg Co Ltd | Discriminating method for electric characteristic of non- rectilinear resistor |
US4392104A (en) * | 1980-07-10 | 1983-07-05 | Automation Industries, Inc. | Dielectric test unit |
DE3231225A1 (en) * | 1982-08-21 | 1984-03-01 | Verwaltungsgesellschaft Heinrich Neitz GmbH & Co KG, 4930 Detmold | Heat treatment oven and performance of thermal processes for workpieces of ferrous materials and non-ferrous metals |
US4673869A (en) * | 1985-02-13 | 1987-06-16 | Phillips Petroleum Company | Dielectric constant detector capacitance matching |
JPH04264273A (en) * | 1991-02-19 | 1992-09-21 | Tokyo Electric Power Co Inc:The | Method for diagnosing deterioration of power cable |
DE4131040A1 (en) * | 1991-09-18 | 1993-03-25 | Hoechst Ag | Thermal conductivity measuring appts. - uses closed oven with input, output apertures, atmosphere and temp. control, mutually perpendicular lasers, thermoelement, specimen holder and radiation detectors |
JPH05180896A (en) * | 1991-06-14 | 1993-07-23 | Hitachi Cable Ltd | Method for selecting insulator for d.c. power cable |
JPH0618604A (en) * | 1992-06-29 | 1994-01-28 | Hitachi Cable Ltd | Diagnostic method for insulation deterioration and defect detecting method for power cable |
-
2000
- 2000-05-17 ES ES200001300A patent/ES2164604A1/en active Pending
Patent Citations (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3096478A (en) * | 1959-08-18 | 1963-07-02 | Okonite Co | Apparatus with conductive gas electrodes for detecting non-uniformity in electrically insulating and electrically semi-conducting materials |
US3263165A (en) * | 1962-10-16 | 1966-07-26 | Okonite Co | Apparatus and method utilizing nonconductive tube means containing an ionized gas for corona testing of insulated electrical cables |
US3418570A (en) * | 1966-08-26 | 1968-12-24 | Henry H. Clinton | Electrical device for testing for and counting flaws in the insulation of an electrical conductor passing through an electrode |
US4244917A (en) * | 1979-05-09 | 1981-01-13 | Conoco, Inc. | Sample pyrolysis oven |
US4392104A (en) * | 1980-07-10 | 1983-07-05 | Automation Industries, Inc. | Dielectric test unit |
JPS5850475A (en) * | 1981-09-21 | 1983-03-24 | Meidensha Electric Mfg Co Ltd | Testing method for nonlinear resistor of zinc oxide |
JPS5860269A (en) * | 1981-10-05 | 1983-04-09 | Meidensha Electric Mfg Co Ltd | Determination of life for non-linear resistor |
JPS5866069A (en) * | 1981-10-15 | 1983-04-20 | Meidensha Electric Mfg Co Ltd | Discriminating method for electric characteristic of non- rectilinear resistor |
DE3231225A1 (en) * | 1982-08-21 | 1984-03-01 | Verwaltungsgesellschaft Heinrich Neitz GmbH & Co KG, 4930 Detmold | Heat treatment oven and performance of thermal processes for workpieces of ferrous materials and non-ferrous metals |
US4673869A (en) * | 1985-02-13 | 1987-06-16 | Phillips Petroleum Company | Dielectric constant detector capacitance matching |
JPH04264273A (en) * | 1991-02-19 | 1992-09-21 | Tokyo Electric Power Co Inc:The | Method for diagnosing deterioration of power cable |
JPH05180896A (en) * | 1991-06-14 | 1993-07-23 | Hitachi Cable Ltd | Method for selecting insulator for d.c. power cable |
DE4131040A1 (en) * | 1991-09-18 | 1993-03-25 | Hoechst Ag | Thermal conductivity measuring appts. - uses closed oven with input, output apertures, atmosphere and temp. control, mutually perpendicular lasers, thermoelement, specimen holder and radiation detectors |
JPH0618604A (en) * | 1992-06-29 | 1994-01-28 | Hitachi Cable Ltd | Diagnostic method for insulation deterioration and defect detecting method for power cable |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EC2A | Search report published |
Date of ref document: 20020216 Kind code of ref document: A1 Effective date: 20020216 |
|
FC2A | Grant refused |
Effective date: 20040726 |