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Pirelli and C SpA
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Pirelli SpA
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Application filed by Pirelli SpAfiledCriticalPirelli SpA
Publication of ES346046A1publicationCriticalpatent/ES346046A1/en
G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
G01R31/58—Testing of lines, cables or conductors
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Physics & Mathematics
(AREA)
General Physics & Mathematics
(AREA)
Testing Relating To Insulation
(AREA)
Abstract
A method to carry out the continuous voltage test of the high voltage electric cables, of which one end is intended to be electrically connected to a transformer terminal and is housed in a drawer integral with the transformer box and provided to be filled with oil, such a process is characterized by the fact that it comprises the following phases: - evacuation of the drawer to a vacuum of less than 20 mm hg. - filling the drawer with electronegative gases either alone or in mixture with, inert gases at appropriate pressure. - execution of the test. (Machine-translation by Google Translate, not legally binding)
ES346046A1966-10-171967-10-02Improved method for carrying out direct current voltage tests on high tension electric cables
ExpiredES346046A1
(en)
A improvement in the muflas for the terminals of entry of electric cables in transformers. (Machine-translation by Google Translate, not legally binding)