A three-phase uncontrolled bridge rectifier is connected to an AC supply of 410V through a delta-star transformer as shown in the Figure The load consists of large inductance to render a level load current of 30A at 120V Assuming voltage drop (b) across the power device to be 0.8V, compute the following: Rms value of secondary phase voltage and current Rms value of primary phase voltage and current Transformer power rating in kVA and transformation ratio, IV) Device ratings Fo D, 本。 本。 Load 本。 本。 本 Figure
A three-phase uncontrolled bridge rectifier is connected to an AC supply of 410V through a delta-star transformer as shown in the Figure The load consists of large inductance to render a level load current of 30A at 120V Assuming voltage drop (b) across the power device to be 0.8V, compute the following: Rms value of secondary phase voltage and current Rms value of primary phase voltage and current Transformer power rating in kVA and transformation ratio, IV) Device ratings Fo D, 本。 本。 Load 本。 本。 本 Figure
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Transcribed Image Text:A three-phase uncontrolled bridge rectifier is connected to an AC supply of 410V
through a delta-star transformer as shown in the Figure The load consists of large
inductance to render a level load current of 30A at 120V Assuming voltage drop
(b)
across the power device to be 0.8V, compute the following:
Rms value of secondary phase voltage and current
Rms value of primary phase voltage and current
Transformer power rating in kVA and transformation ratio,
IV)
Device ratings
本。
本。
Load
本。
本。
本
Figure
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