63
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Relay.
A relay is an electromechanical device that functions
as a switch controlled by an electrical circuit in which, by
means of an electromagnet, a set of one or several contacts
is activated to enable other independent electrical circuits
to be opened or closed.
•
SCR.
Silicon controlled rectifier, commonly known as a
thyristor, a 4-layer semiconductor device that works as an
almost ideal switch.
•
THD.
Total harmonic distortion. Harmonic distortion occurs
when the output signal of a system does not equal the
signal that entered it. This lack of linearity affects the
waveform because the device has introduced harmonics
that were not in the input signal. Since they are harmonic,
that is to say, multiples of the input signal, this distortion is
not so dissonant and is less easy to detect.
SLC ADAPT
UNINTERRUPTIBLE POWER SUPPLY (UPS)
USER'S MANUAL
Summary of Contents for SLC ADAPT Series
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