PPA5xx/15xx user manual
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1 Introduction – general principles of operation
PPA500 and PPA1500 ranges are sophisticated and
versatile power analysers for accurate wide-bandwidth
power measurements.
The PPA5xx/15xx family of power analysers covers 1 to 3
phase applications in both low current and high current
models.
Each phase input has wide ranging voltage and current
channels which are fully isolated from each other and from
ground. The voltage input has a built in high voltage
attenuator or may be used with an external attenuator.
The current input has a built in current shunt or may be
used with an external shunt.
The voltage and current inputs are simultaneously
sampled, and the data is analysed in real time by a high
speed DSP (digital signal processor). A separate CPU
(central processing unit) takes the DSP results for display
and communications. At the heart of the system is an
FPGA (field programmable gate array) that interfaces the
various elements.
This powerful, versatile structure allows the measurement
of a wide range of power related parameters including:
W, VA, VAr, power factor, phase
true rms, fundamental
harmonics, TIF
integrated values (W hours etc.)
impedance
inrush current, voltage surge
oscilloscope (PPA15xx only)
PPA5xx/15xx range is particularly easy to use, with a large
clear colour display and single menu levels for all main
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