What is the typical source of power supplied to a Mercury Arc rectifier?

The typical source of power supplied to a Mercury Arc rectifier is an AC source. Mercury Arc rectifiers are devices that convert alternating current (AC) into direct current (DC) through the principle of electrical arcs formed in vaporized mercury. When an AC voltage is applied, the mercury vapor within the rectifier becomes ionized, allowing current to flow in one direction, effectively rectifying the AC input into DC output.

The use of an AC source is critical because the rectification process relies on the alternating nature of the input voltage to switch the conduction state of the arc. This ability to control the arc and transition from positive to negative cycles of the AC supply is what allows the rectifier to perform its function. Thus, an AC source is essential for the operation of Mercury Arc rectifiers, highlighting their technical design and function.