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In a three-phase half-wave rectifier, each diode conducts for 120 degrees because each diode is triggered by the positive half-cycle of its corresponding phase voltage. The three-phase system has a 360-degree cycle, and since there are three diodes, each diode conducts for one-third of the cycle. This results in each diode conducting for 120 degrees (360 degrees/3), ensuring that at any given time, one diode is conducting while the others are off, thereby allowing for continuous output. Thus, during each 120-degree interval, one diode is forward-biased and allows current to flow.

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2mo ago

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