Slide 1

PRESENTATION ONTRANSPOSITIONS IN WINDINGSBYM.M.V. RAVINDRA

1TRANSFORMER

CORE(CRGO)

WINDINGS(COPPER)

STUCRURALPARTS(MS)

INSULATION(PB & DLW)

NO LOADLOSS

IR + WINDINGSTARY LOSS

STRAY LOSS

DILECTRICLOSS

LEAKAGE FIELD MAGNETIC FILED WICH COMPLETS ITS PATH WITH WITHOUT COMPLETELY PASSING THROUGHT CORE, PASSES TROUGH AIR(OIL), COPPER, MS etc.

LEAKAGE FILED IN TRANSFORMER LEAKAGE FILED IN TRANSFORMER

STRAY LOSSES WHEN LEAKEGE FILED CUTS THE STRUCTURAL PARTS ( OF MAGNETIC MATERIALS, Ex.MS) EDDY CURRENTS WILL FLOW THROUGH THEM .WICH CACUSES EXTRA LOSSES CALLED STRUCTURAL OR STARY LOSSES

WINDING STRAY LOSSES WHEN LEAKEGE FILED CUTS THE COPPER CONDUCTOR EDDY CURRENTS WILL FLOW THROUGH THEM. WICH CACUSES EXTRA LOSSES CALLED WINDING EDDY LOSSES

FLUX LINKAGE & INDUCED VOLTAGE Faradays law states that a voltage appears across the terminals of an electric coil when the flux linkages associated with the same changes. This emf is proportional to the rate of change of flux linkages.

Say, EA = 11.2 kVEB = 11kVEC = 11.1 kV

TRANSPOSITIONS IN TRANSMISSION LINESTRANSPOSITIONS IN CTC

TRANSPOTIONS IN DISC WINDING

TRANSPOTIONS IN SPIRAL WINDING

TRANSPOSITIONS IN HELICAL WINDING

Thank You . . .