EntityQ2101716· pop 11· linked from 164 articlesopen circuit testSign in to savemethod used in electrical engineering to determine the impedance in the excitation branch of a real transformerConnectionselectrical generatorEntitytransformerEntityreluctance motorEntitydoubly fed electric machineEntityNikola TeslaEntityMichael FaradayEntityJames Clerk MaxwellEntityelectric currentEntitymagnetEntityelectrical engineeringEntityelectromagnetismEntityvoltageEntityelectric motorEntityHans Christian ØrstedEntityalternating currentEntitydirect currentEntitySiemensEntityelectric powerEntityFrançois AragoEntityammeterEntityCategoriesElectrical testsElectric transformers