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    • 2. 发明专利
    • NO20071587L
    • 2007-10-08
    • NO20071587
    • 2007-03-27
    • SUMITOMO ELECTRIC INDUSTRIES
    • TAKIGAWA HIROSHIHIROSE MASAYUKIYATSUKA KEN
    • G01R31/12
    • A dielectric strength test method of a superconducting cable that can evaluate the insulation characteristic of a superconducting cable in a state in which a refrigerant is filled without filling a refrigerant is provided. A tested superconducting cable is filled with gas in place of a refrigerant and a regular dielectric strength test is conducted at room temperature. Preferably, a preliminary dielectric strength test is conducted prior to the regular dielectric strength test. In the preliminary dielectric strength test, a first reference superconducting cable filled with a refrigerant at a predetermined pressure and a second reference superconducting cable filled with gas in place of a refrigerant at a predetermined pressure are provided. The preliminary dielectric strength test is conducted for the first reference superconducting cable at refrigerant temperature and the second reference superconducting cable at room temperature to find the correlation between the dielectric strength characteristics of the cables. At the time, the test voltage is determined based on the dielectric strength characteristic of the second reference superconducting cable. The regular dielectric strength test is conducted at the test voltage.
    • 3. 发明专利
    • DIELECTRIC STRENGTH TEST METHOD OF SUPERCONDUCTING CABLE
    • HK1108484A1
    • 2008-05-09
    • HK07113664
    • 2007-12-14
    • SUMITOMO ELECTRIC INDUSTRIES
    • HIROSE MASAYUKIYATSUKA KENTAKIGAWA HIROSHI
    • G01R20100101
    • A dielectric strength test method of a superconducting cable that can evaluate the insulation characteristic of a superconducting cable in a state in which a refrigerant is filled without filling a refrigerant is provided. A tested superconducting cable is filled with gas in place of a refrigerant and a regular dielectric strength test is conducted at room temperature. Preferably, a preliminary dielectric strength test is conducted prior to the regular dielectric strength test. In the preliminary dielectric strength test, a first reference superconducting cable filled with a refrigerant at a predetermined pressure and a second reference superconducting cable filled with gas in place of a refrigerant at a predetermined pressure are provided. The preliminary dielectric strength test is conducted for the first reference superconducting cable at refrigerant temperature and the second reference superconducting cable at room temperature to find the correlation between the dielectric strength characteristics of the cables. At the time, the test voltage is determined based on the dielectric strength characteristic of the second reference superconducting cable. The regular dielectric strength test is conducted at the test voltage.
    • 4. 发明专利
    • METODO DE PRUEBA DE VOLTAJE NO DISRUPTIVO DE CABLE SUPERCONDUCTIVO.
    • MX2007003871A
    • 2007-05-18
    • MX2007003871
    • 2005-10-12
    • SUMITOMO ELECTRIC INDUSTRIES
    • HIROSE MASAYUKIHIROSE MASAYUKIYATSUKA KENTAKIGAWA HIROSHI
    • G01R31/00
    • Un metodo de prueba de voltaje no disruptivo de cable superconductivo que permite la evaluacion de la caracteristica de aislamiento de un cable superconductivo en un estado lleno de refrigerante sin llenar el cable con un refrigerante. Un cable superconductivo a prueba se llena con un gas en lugar de un refrigerante y se sujeta a una prueba de voltaje no disruptivo a temperatura normal. Antes de la prueba de voltaje no disruptivo, preferentemente se lleva a cabo una prueba comprobada de voltaje preliminar. Para la prueba de voltaje no disruptivo preliminar, se prepara un primer cable superconductivo de referencia lleno con un refrigerante bajo una presion predeterminada y un segundo cable superconductivo de referencia lleno con un gas bajo una presion predeterminada en lugar de un refrigerante. El primer cable superconductivo de referencia se sujeta a una prueba de voltaje no disruptivo preliminar a fa temperatura del refrigerante y el segundo se sujeta a una prueba de voltaje no disruptivo preliminar a temperatura normal a fin de determinar la correlacion de la caracteristica de voltaje no disruptivo entre los cables. El voltaje de prueba se determina de acuerdo con la caracteristica de voltaje no disruptivo del segundo cable superconductivo de referencia. La prueba de voltaje no disruptivo se lleva acabo en este voltaje de prueba.
    • 5. 发明专利
    • SUPERCONDUCTIVE CABLE WITHSTAND VOLTAGE TEST METHOD
    • CA2580815A1
    • 2006-07-13
    • CA2580815
    • 2005-10-12
    • SUMITOMO ELECTRIC INDUSTRIES
    • YATSUKA KENHIROSE MASAYUKITAKIGAWA HIROSHI
    • G01R31/12
    • A dielectric strength test method of a superconducting cable that can evaluate the insulation characteristic of a superconducting cable in a state in which a refrigerant is filled without filling a refrigerant is provided. A tested superconducting cable is filled with gas in place of a refrigerant and a regular dielectric strength test is conducted at room temperature. Preferably, a preliminary dielectric strength test is conducted prior to the regular dielectric strength test. In the preliminary dielectric strength test, a first reference superconducting cable filled with a refrigerant at a predetermined pressure and a second reference superconducting cable filled with gas in place of a refrigerant at a predetermined pressure are provided. The preliminary dielectric strength test is conducted for the first reference superconducting cable at refrigerant temperature and the second reference superconducting cable at room temperature to find the correlation between the dielectric strength characteristics of the cables. At the time, the test voltage is determined based on the dielectric strength characteristic of the second reference superconducting cable. The regular dielectric strength test is conducted at the test voltage.