Advantages of three-phase rectifier over a single-phase rectifier:
- The transformer utilization factor is high.
- More efficient than a single-phase system.
- The power output and therefore rectification efficiency are quite high.
- Ripple factor is too much lower and therefore they high-cost filtering is not required to give steady DC output.
- The output current in the load contains very little Ac component as compared to a single-phase rectifier.
- Lower amplitude ripple. so the output voltage is smoother.
- Size is small compared to the single-phase system.
- High output voltage for given input voltage.
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