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Societe Franccaise Gardy SA
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Societe Franccaise Gardy SA
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Application filed by Societe Franccaise Gardy SAfiledCriticalSociete Franccaise Gardy SA
Application grantedgrantedCritical
Publication of FR698574ApublicationCriticalpatent/FR698574A/fr
H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
H01H83/14—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by imbalance of two or more currents or voltages, e.g. for differential protection
H01H83/144—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by imbalance of two or more currents or voltages, e.g. for differential protection with differential transformer
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Engineering & Computer Science
(AREA)
Power Engineering
(AREA)
FR698574D1930-06-271930-06-27Disjoncteur pour tableau de contrôle d'installations à basse tension
ExpiredFR698574A
(fr)