How much DC voltage when 3phases are rectified

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SUMMARY

When rectifying three-phase 230V (phase-to-phase) AC using a bridge rectifier such as the MEB00806, the resulting DC voltage will be approximately 1.35 times the RMS voltage, yielding about 311V DC without filtration. With filtration, the output voltage will stabilize closer to this peak value, reducing ripple and providing a smoother DC output. The absence of a neutral connection does not affect the peak voltage calculation but may influence the overall system design and grounding considerations.

PREREQUISITES
  • Understanding of three-phase AC systems
  • Knowledge of bridge rectifier operation
  • Familiarity with RMS and peak voltage calculations
  • Basic concepts of voltage filtration techniques
NEXT STEPS
  • Research the operation and specifications of the MEB00806 bridge rectifier
  • Learn about three-phase rectification and its applications
  • Study voltage ripple and smoothing techniques in DC circuits
  • Explore the implications of grounding in three-phase systems
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Electrical engineers, students studying power electronics, and professionals involved in designing or analyzing three-phase rectification systems.

prashsar
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Hi,Good day to all.
If 3 phases(230 volts phase to phase )are rectified (using a bridge rectifier: MEB00806)and no neutral is used ;
what amount of DC voltage will be obtained(with and without filtration)?
Thanking you.
Prashsar.
 
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prashsar said:
Hi,Good day to all.
If 3 phases(230 volts phase to phase )are rectified (using a bridge rectifier: MEB00806)and no neutral is used ;
what amount of DC voltage will be obtained(with and without filtration)?
Thanking you.
Prashsar.

What do you think the answer is? If this is for school work, we cannot just give you the answer. Please post your thoughts and an attempt at the solutions.
 
Draw the resultant waveform with no smoothing bearing in mind the 230V is RMS and the peak is higher.
 

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