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The Eclipse Series is a family of Din rail mountable
standalone AC power transducers. They are ideal for situations in
which the characteristics of single and three phase AC power signals
must be measured and retransmitted as isolated DC signals, such
as in electrical heating applications. The DC output can be used
to drive meters, recorders, digital controllers, alarms, computer
inputs and process control systems. All units in the series mount
directly on a Din D” rail and offer a simple fit and install
procedure. Units are auxiliary powered, some are self-powered.
Current Transducer
The single and three phase current transducer converts an AC current
signal into an isolated standard DC signal. Up to 10A direct or
1A or 5A CT inputs are accepted. Average sensing units may be used
for sine waves of less than 1% distortion. RMS units measure true
RMS, even for phase angle chopped or distorted signals. Self and
auxiliary powered units are available.
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Voltage Transducers
Single and three phase AC voltage inputs up to 500Vac may be converted
into an isolated standard DC signal. Average sensing for sine waves
and true RMS sensing for use with sine waves or distorted waveforms
are available for single phase applications. Three phase RMS (3W
and 4W) units are also available. All units are auxiliary powered.
Power Transducers
The Watt and Var transducers provide an isolated DC output proportional
to the true power in watts (VIcosØ) or reactive power in
vars (VI sinØ). They may be used in single and three phase
3W or 4W systems with balanced or unbalanced loads. Avail-able in
one, two or three element configurations, units are auxiliary powered.
All transducers have a ratio of calibrated power to actual power.
This ratio is the product of the CT and VT ratios being used, requiring
a sizing calculation to be performed when specifying the product
for an application, (see page 1–42).
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RMS and average measurements