How do you calculate the turns ratio of a transformer?
1 Answer
The turns ratio of a transformer can be calculated by comparing the number of turns in the primary winding (Np) and the number of turns in the secondary winding (Ns). The turns ratio (TR) is defined as the ratio of the number of turns in the primary winding to the number of turns in the secondary winding.
The formula for calculating the turns ratio is:
Turns ratio (TR) = Np / Ns
Here, Np is the number of turns in the primary winding, and Ns is the number of turns in the secondary winding.
For example, if a transformer has 100 turns in its primary winding and 50 turns in its secondary winding, the turns ratio would be:
TR = 100 / 50 = 2
This means that the transformer has a turns ratio of 2:1. In other words, the voltage in the secondary winding will be half of the voltage in the primary winding (assuming no losses). Similarly, if the turns ratio is 3:1, the secondary voltage will be one-third of the primary voltage, and so on.
The formula for calculating the turns ratio is:
Turns ratio (TR) = Np / Ns
Here, Np is the number of turns in the primary winding, and Ns is the number of turns in the secondary winding.
For example, if a transformer has 100 turns in its primary winding and 50 turns in its secondary winding, the turns ratio would be:
TR = 100 / 50 = 2
This means that the transformer has a turns ratio of 2:1. In other words, the voltage in the secondary winding will be half of the voltage in the primary winding (assuming no losses). Similarly, if the turns ratio is 3:1, the secondary voltage will be one-third of the primary voltage, and so on.