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R-Y-B Phase Direction in tamil

Phase sequence: Let the emf induced in R phase, E be taken as reference. E Y lags ER by 120 R  and E B lags ER by 240  . Phase sequence: Let the emf induced in R phase, E be taken as reference. E Y lags ER by 120 R  and E B lags ER by 240  . The three phase system the order in which the three phase emfs or currents attain their maximum value is lcalled Phas e Sequence. Y (Yellow) and B (Blue). Positive sequence: The three phases are generally represented as R (Red), If the phase sequence is given as RYB then the convention is R phase reaches its maximum value first, Y phase follows ‘R’ and ‘B’ phase f ollows Y in reaching the maximum value. The RYB sequence in the anticlockwise direction defines the positive sequence. Negative sequence: A threephase system in which the voltages and currents in each of the three phases reach their maximum values in the reverse order to conventional phase sequence , ie R,B Y as opposed to R, Y,B is called as negative sequence. Phase voltage: The voltage between one of the voltage and is represented by V ph . Thank You for watching