Storing/Recalling Measured Data - YOKOGAWA WT200 User Manual

Integrator Functions
Frequency Measurement Function
Harmonic Analysis Function (optional)
Storing/Recalling Measured Data and Setting Parameters
D/A Output Function (optional)
Comparator Function (optional)
IM 253421-01E
Average active power during integration
This function computes the average active power within the integration period. It is
derived by dividing the watt hour (integrated active power) by the elapsed time of
integration.
This function enables integration of active power and current. All measurement values
(and computed values) can be displayed, even when integration is in progress, except
for the integrated values (watt hour and ampere hour) and elapsed integration time.
Since also integrated values of negative polarity can be displayed, the consumed watt
hour (ampere hour) value of the positive side and the watt hour value returning to the
power supply of the negative side can be displayed seperately.
The following two integration methods are available:
• Standard type
Integrates the active power or current that is obtained using the normal measurement
method, which obtains the active power or current from the sampled data over the
period that is synchronized to the input signal. Select the standard type for steady-
state input signals that have a constant period such as a sinusoid.
• Advanced type
Integrates the active power or current obtained over a fixed period of sampled data,
irrespective of the period of the input signal. Select the advanced type for intermittent
signals with a frequency of 50 or 60 Hz.
This function measures the frequency of the voltage and current.
Measuring range is from 10 Hz to 50 kHz (however, depending on the internal timing of
the instrument, measurement might be carried out in the range from 4 Hz to 10 Hz
also).
This function enables computation of voltage, current, active power and so forth of up
to the 50th order, the relative harmonic content of harmonic orders and the phase angle
of each order compared to the fundamental (first order). Furthermore, the total rms
value (fundamental + harmonic) of the voltage, current and active power, and the
harmonic distortion factor (THD) can be calculated.
This function enables the storage of measured data and setting parameters into the
internal memory. Furthermore, after recalling measured data or setting parameters,
these data can be displayed or output by communication interface.
This function enables output of measured values of voltage, current, active power,
apparent power, reactive power, power factor and phase angle as a DC analog signal
with full scale of ±5 V. Output items of up to 4 channels can be selected.
This function compares the measured values of voltage, current, active power,
apparent power, reactive power, power factor and phase angle and such with preset
limit values. When the measured values cross those preset limits, a contact output
relay will be activated. Output items up to 4 channels can be set.
1.2 Functions
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