Atec Megger-PA9Plus - Manual (Page 2)

PA9PLUS
Portable Power Quality Analyzer
n Frequency trending and IEC Flicker measurements.
n Waveform capture with event (voltage and current sags,
swells, harmonics and sub-cycle transients down to
65 microseconds), time, or harmonic trending limits.
Power Flow
n Records all power parameters for all major configurations
using single, 2, 2-1/2 and 3 element measurement
methods.
n Power parameters are recorded for demand intervals
from one hour down to every cycle, which is always
necessary when recording in-rush characteristics during
start-up of motors, generators, transformers, and large
loads.
Records all Power Quality and Power Flow
Parameters
n
Voltage/Current & Power – volts (line-neutral)*, volts
(line-line)*, volts (neutral-earth)*, amps*, frequency,
neutral amps*, real power**, reactive power**, apparent
power**
n
Demand Interval Data – (for fixed or sliding window)
volts (line-neutral) or volts (line-line), current, real
power**, reactive power**, apparent power**, real
energy**, reactive energy**, apparent energy**, true
power factor, displacement power factor, volts & amps
imbalance, phase relationships
n
Minimum/Maximum/Demand – volts, amps, real
power, reactive power, apparent power, volts and amps
imbalance, true power factor
n
Waveforms/Harmonics – (for each input) voltage and
current waveforms captured on time or exceedance
triggered basis, total harmonic distortion, total demand
distortion, individual harmonic trending, harmonic
analysis, amplitude, phase shift, K factor
*RMS as well as 1 cycle minimum and maximum value
**Bidirectional measurement capability
Versatile Data Recording Modes
For ultimate flexibility, the user determines how data is
recorded:
n
Continuous Recording – the PA9Plus records all selected
parameters (i.e. minimum, average and maximum values
of voltage/ current, power parameters, etc.) with date
and time stamp for each storage interval.
n
Exceedance only Recording – the PA9Plus only records
abnormal events based on user selected limits. This
technique saves memory and allows longer recording
times.
You Manage the Memory
The PA9Plus offers several options for managing the full
12 MB of nonvolatile internal memory and an optional
removable memory card (up to 4G).
n
Stop when Full – recording stops when internal memory
is full. All recorded data is saved to internal memory for
download or local analysis.
n
Wraparound or “Moving Window” – when memory is full,
the power analyzer automatically writes over the oldest
data. This first-in, first-out process guarantees that the
most recent data is always recorded and available.
n
Transfer to External Memory Card – manual and
automatic transfer capabilities. This card is available from
Megger.
APPLICATIONS
Using experience gained from supplying thousands of
solid state recorders to hundreds of utilities, industrial, and
service companies around the world, Megger designed
the PA9Plus to be the most versatile instrument available
today. The PA9Plus is Megger’s next generation analyzer,
including important new features requested by our
customers.
From substations, to commercial & industrial, to residential
monitoring, the PA9Plus is your comprehensive “first line
of defense” for analyzing and solving power quantity and
power quality problems.
These high performance capabilities, combined with the
latest in electronic technology, makes the PA9Plus ideal for
both utility and industrial applications:
n Analysis comparisons to worldwide PQ standards
n Lamp flicker measurements and recordings
n Energy audits and forecasting
n Capacitor bank sizing
n Load balancing
n Power factor surveys
n Before/after studies
n Load profiling
n Substation monitoring
n Comprehensive power quality investigations
n Billing verification
n Motor, generator and transformer inrush current studies
n Harmonic surveys, analysis, and filter design
Voltage and current probes connect easily and never require an
external power supply.