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Page 324

| Figure 16-13 Methods of connecting contact or disc rectifiers: (A) Single-phase, half-wave rectifier, (B) single-phase, full-wave rectifier, and (C) full-wave bridge rectifier (Courtesy, General Electric Co.) |

| Construction. |

| Mercury-arc rectifier. Large-capacity mercury-arc rectifiers may be of the single-anode or multiple-anode types. Single-anode types are combined in groups to accomplish multiphase rectification. Multianode types concentrate all the anodes in one large container. |

| The containers for both types are built of steel, and both the mercury pool and anodes are insulated from the container. Connections are brought out through porcelain bushings. The container is normally constructed to include an enveloping water jacket for cooling. |

| Inside the container at the top, a space is left within a cooling coil to provide a condensing chamber for the mercury. Anodes made of graphite and mounted on sleeves of steel are suspended from the cover and so arranged that |

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