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The production-possibility curve illustrates the consumption preferences of a country's population, and explains why all people prefer to be employed rather than unemployed.
Wye-Delta Transformer
A transformer configuration used to shift between high and low voltages in a three-phase electrical system, involving a star (Wye) connection and a delta connection.
Wye
A configuration in electrical engineering where three phase circuits are connected at a single point, forming a 'Y' shape, allowing for both three-phase and single-phase connections.
Delta
A method of connecting three electrical components in a triangular configuration, allowing for the completion of a circuit without a neutral path.
Open Delta
A connection method for three-phase transformers where only two transformers are used, providing a way to supply three-phase power with reduced capacity.
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