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Application filed by Inst Cercetari StiintificefiledCriticalInst Cercetari Stiintifice
Priority to RO138183ApriorityCriticalpatent/RO102902B1/en
Publication of RO102902A2publicationCriticalpatent/RO102902A2/en
Publication of RO102902B1publicationCriticalpatent/RO102902B1/en
Measuring Instrument Details And Bridges, And Automatic Balancing Devices
(AREA)
Abstract
The invention refers to an installation that measures the composite error of current transformers. The installation uses a standard shunt to measure the primary testing current, another coaxial shunt with a transfer coefficient that doesn't depend on the conversion ratio of the tested current transformer, to measure the secondary current of the testing current transformer. A synchronous short-circuit is used to control the aperiodic component of the primary current.
RO138183A1989-02-131989-02-13Measuring installation of compound error at current transformers
RO102902B1
(en)