THREE PHASE TRANSFORMER WINDING CONNECTIONS
1) DELTA DELTA CONNECTION 1. Suitable for both un-grounded and effectively grounded sources. 2. Suitable for a three-wire service or…
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THERMAL AND VOLTAGE CONSIDERATIONS OF TRANSFORMER
THERMAL CONSIDERATIONS The losses in the windings and the core cause temperature rises in the materials. This is another important…
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LOAD LOSSES IN TRANSFORMER
The term load losses represents the losses in the transformer that result from the flow of load current in the…
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GENERATION OF AC HIGH VOLTAGE BY CASCADED TRANSFORMERS
For voltages higher than about 300 to 500 kV, the cascading of transformers is a big advantage, as the weight…
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CASCADED TRANSFORMERS METHOD FOR GENERATING AC HIGH VOLTAGE
For voltages higher than 400 KV, it is desired to cascade two or more transformers depending upon the voltage requirements.…
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MAGNETIZATION NONLINEARITIES OF TRANSFORMERS AS A SOURCE OF HARMONICS
Transformer magnetic material characteristic is nonlinear. This non linearity is the main reason for harmonics during excitation. Sources of harmonics…
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EFFECTS OF HARMONICS ON TRANSFORMERS
Harmonics has effect on transformer in various ways, e.g.: 1. Core loss: Harmonic voltage increases the hysteresis and eddy current…