powertronics PQR D52 - Understanding Power Problems; Overview of Power Disturbances; Typical AC Waveform Illustration

PQR Series Model D52
Page 44
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V2.1
Figure PT 1 Typical AC Waveform
Types of Power Problems
and what they look like.
There are many types of power problems that can affect
the quality of the AC power being delivered to a piece of
equipment. Different types of problems will have different effects
on the operation, or even life expectancy of this equipment.
Knowing what these problems are, and what some of the
consequences are of having these problems, can help in the process
of identifying what can be done to help protect this equipment.
The following pages describe several of the more common
types of Power disturbances and list what some of the causes are.
 Dropout - Power Failure
 Sag
 Impulse
 Common Mode Noise
 Surge
 High Frequency Noise