PQR
Series Model D52
Page 48
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V2.1
COMMON MODE NOISE
In single phase power systems, as found in many
countries such as the USA, the load (computer or
equipment) is connected between the hot and neutral
line. Usually the neutral line is connected to earth
ground at the service entrance, so that in effect the
neutral line should have 0 volts at the load. At a typical
site, voltage is induced onto the neutral line by other
equipment. This voltage can appear in the form of
impulses, or a continuous pseudo sine wave.
Figure PT 5 - Common Mode Noise
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