GEAR TO TEST COLLECTORLESS A C ELECTRIC MACHINES Russian patent published in 1997 - IPC

FIELD: electrical engineering. SUBSTANCE: invention refers to testing of high-power collectorless A.C. electric machines and frequency-controlled drives on their base in testing stations of works manufacturing electric machines and in research institutions. Gear to test collectorless A.C. electric machines has two driving motors (direct current and asynchronous). First one is mechanically connected to second loading D.C. generator and second one is connected to A.C. network. Static frequency converter is connected to second loading generator via second connection unit and via first one - to tested machine which is coupled to first loading generator via connection unit. EFFECT: enhanced stability and expanded functional capabilities of gear. 1 dwg