The input voltage from a generating plant to a transformer is 11,000 V. If the output voltage from the transformer to high-voltage transmission lines is 240,000 V, what is the ratio of secondary to primary turns in this step-up transformer
stepupratio=240K/11K=21.8+
To find the ratio of secondary to primary turns in a transformer, we need to use the turns ratio formula. The turns ratio is equal to the ratio of the output voltage (secondary voltage) to the input voltage (primary voltage).
In this case, the output voltage (secondary voltage) is 240,000 V, and the input voltage (primary voltage) is 11,000 V.
The turns ratio (N) can be calculated as follows:
N = Secondary Voltage / Primary Voltage
N = 240,000 V / 11,000 V
N ≈ 21.82
Therefore, the ratio of secondary to primary turns in this step-up transformer is approximately 21.82.