Correct option is C
Scott connections are used for (c) Three phase to two phase transformation.
Explanation: A Scott connection, also known as a Scott-T connection, utilizes two single-phase transformers to convert a three-phase power supply into a two-phase power supply.
Scott connections:
· Two transformers:
One is called the "main" transformer and the other is called the "teaser" transformer.
· Voltage relationship:
The teaser transformer operates at a voltage which is √3/2 (approximately 0.866) times the voltage of the main transformer.
· Application:
This connection is often used in situations where a two-phase power supply is required, like in some electric furnace installations.
