| 摘要 |
The object of the invention is a method and measuring device (10) for measuring the direction of rotation of a three-phase system, the measurement being carried out by means of measuring sensors (11). After each measuring sensor (11) a coupling circuit is connected, transforming the voltage produced in the measuring sensor (11) into rectangular pulses. The coupling circuit outputs are connected to a common logic which determines the direction of rotation on the basis of the phase difference between the pulses.
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