Transformer utilization factor
Transformer utilization factor (TUF) of a rectifier circuit is defined as the ratio of the DC power available at the load resistor and the AC rating of the secondary coil of a transformer.
![T.U.F = \frac{P_{odc}}{V_A\ rating\ of\ transformer}](/Images/godic/202502/17/99d225307c3e7977b0d675f46196ea423343.png")
The ![V_A](/Images/godic/202502/17/582488ec3df93a93e059071a60b384e03343.png")
rating of the transformer can be defined as:
![V_A = V_{r.m.s} \dot I_{r.m.s} (For\ secondary\ coil.)](/Images/godic/202502/17/8ef57d17f840ce1288ef2a2192edd4b63343.png")