Normally, which of the following is used, when a large-scale conversion from AC. to D.C. power is required ?
Correct answer: D. Mercury arc rectifier
- A. Motor-generator set
- B. Motor converter
- C. Rotary converter
- D. Mercury arc rectifier
Explanation
Historically, mercury-arc rectifiers were used for large-scale AC-to-DC conversion because they handled high voltage and current efficiently. Modern installations generally use semiconductor thyristor or diode rectifiers instead.
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