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convert one form of electricity to another form of electricity. The installed combinations of motors and generators at a plant determine the possible type(s) of conversion. Such facilities also allow the setting of voltages and frequencies, if appropriate equipment is installed. Rotary converter
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technology, rotary converters are still common for feeding railway systems with AC of a different frequency from that of the main electricity grid. In Europe, this would typically be for
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A rotary converter plant in
Germany where three phase AC of 50 hertz is transformed into single phase AC of 16.67 hertz for the traction current network
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of a railway. Rotary converter plants were also used for coupling power grids of different frequencies and operation modes. The former
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At each facility, power from an AC power grid was converted to DC to feed into an
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was an example of the latter. Former machinery transmitters like the
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104:December 2011
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