THREE PHASE TRANSFORMERS
LECTURE NOTES
BY
PROF. NICODEMUS ABUNGU
MACHAKOS UNIVERSITY
1ST JUNE, 2021
, Three-Phase Transformer
A three-phase system in used to generate and transmit electric power. Three-
phase voltages are raised or lowered by means of three-phase transformers. A
three-phase transformer can be built in two ways:
► By suitably connecting a bank of three single-phase transformers (see
figure a) or
► By constructing a three-phase transformer on a common magnetic
structure (see figure b).
Fig. a
Fig. b
LECTURE NOTES
BY
PROF. NICODEMUS ABUNGU
MACHAKOS UNIVERSITY
1ST JUNE, 2021
, Three-Phase Transformer
A three-phase system in used to generate and transmit electric power. Three-
phase voltages are raised or lowered by means of three-phase transformers. A
three-phase transformer can be built in two ways:
► By suitably connecting a bank of three single-phase transformers (see
figure a) or
► By constructing a three-phase transformer on a common magnetic
structure (see figure b).
Fig. a
Fig. b
