Power Logger
Measuring
Functions
31
edx027.bmp
The accumulation time is indicated at the top of the measurement display.
A further press of
21
gives a detail view of the individual phase values.
Capacitor or inductance symbols issue information about capacitive or
inductive reactive power.
With
Hold/Run
the values displayed at the moment “freeze” and the
measurement is stopped or started again.
Note
In the individual representation of A or B or C, the active and
reactive energy cannot be selected.
Three-Phase Power Theory
By switching the Power Network setting from wye to delta, the voltages and
currents I
L1
, I
L3
, I
L2
are calculated, measured and displayed.
When calculating the power, selecting the delta connection will use the two-
wattmeter method (Blondel or Aron) measuring circuit for the calculation.
The neutral conductor may be connected, however, it does not influence the
measurement even in open state. If no neutral conductor is connected, a virtual
”metering neutral” is established in the Logger via symmetrization resistors.
Summary of Contents for 1735
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