| 1. | Royal Station, having a combined capacity of 5, 000 mercury arc rectifiers.
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| 2. | The mercury arc valves of Pole 2 were replaced later by Siemens.
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| 3. | The valves consist of thyristors, or at older plants, mercury arc rectifiers.
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| 4. | Also devices with mercury arc rectifiers or vacuum tubes were in use.
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| 5. | The original link used mercury arc valve converters, and was rated at.
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| 6. | Medium or low-pressure mercury arc lamps can excite these respective transitions.
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| 7. | Mercury arc valves were also used on the following HVDC projects:
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| 8. | Power electronics started with the development of the mercury arc rectifier.
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| 9. | Mercury arc valves for HVDC were rugged but required high maintenance.
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| 10. | In 1961 the mercury arc tubes were replaced by replaced by silicon diode rectifiers.
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