Evaluation Engineering - 9

Keysight Technologies RP7900 Series
regenerative power system.
Copyright Keysight Technologies. Reproduced with Permission.

and USB; a built-in web server allows
operation via any network-connected
PC or Wi-Fi tablet.
"Key features include dual constantpower-mode voltage ranges up to 360
VAC line to neutral or 624 VAC line to
line in three-phase mode and an output
frequency range from 15 Hz to 1,000 Hz,
which is wider than most regenerative AC
source on the market today," vanEijkelenburg continued. "The use of SiC power devices in all power-conversion stages of the
AZX results in higher power density."

500 VA to 4 kVA at 5 to 1,200 Hz
Griffith said. "Next-generation inverters
increase efficiency and reduce installation
costs with higher voltages and multiple
MPPT inputs. Keysight's test solution includes the DG9100 Series advance inverter
test software. Application software makes
it easier to download PV curves and track
measurements."

Delivering 10s of kilovolt-amperes
Preen AC Power has recently introduced
a new AFV+ Series programmable AC
power supply, which delivers 10 kVA to
2,000 kVA, said a spokesperson, who added that AFV+ series features low THD,
high reliability, multiple programming
features, and intuitive operation. "This latest high-power programmable AC power
source...can simulate different power-line
disturbances and record error logs," the
spokesperson said. "The AFV+ Series can
support up to an 840-Hz frequency range
that can be used for aircraft, defense, and
EV test industries." The AFV+ Series can
output up to 400-V line to neutral or 690V line to line or, optionally, 600-V line to
neutral or 1,039 V line to line.
The spokesperson cited another feature:
"In the factory or laboratory, there is often
a certain distance in the configuration
of power and load. The Remote Voltage
Drop Compensation of the AFV+ Series
is able to compensate the voltage drop
caused by the cable length, so the user can
avoid the inconvenience of adjusting the
voltage." The spokesperson also said the
AFV+ can test electric motors, which can
draw high startup currents. "As a result,
users need to purchase a power supply
with much higher capacity than the UUT

itself," the spokesperson said, explaining
that the AFV+ Series has an optional 200%
overload capacity.
Pacific Power Source just announced
the availability of a new line of advanced
regenerative programmable AC and DC
power sources, according to Herman
vanEijkelenburg, director of marketing
at PPST Solutions, the corporate affiliate
distribution channel for Pacific Power
Source and other power test-equipment
manufacturer product lines. "Available at
power levels from
30 kVA to 200 kVA,
these AZX Series
bidirectional AC
and DC sources offer four-quadrant
op er a t ion w it h
the ability to recycle energy from
the load back to
the utility grid for
energ y- ef f icient
o p e r a t i o n ," h e
said, adding that
the sources can be
operated using the
front-panel color
LCD touchscreen
or any of the standard remote-control interfaces including LXI, GPIB,

Pacific Power Source
AZX Series bidirectional
AC and DC source.
Courtesy of Pacific
Power Source Inc.

Nicholas Piotrowski, product manager
at Ikonix USA, said Associated Power
Technologies, a division of Ikonix USA,
is introducing its 8500 Series AC power
sources on Sept. 1. The series includes
the 500-VA Model 8505, 1.25-kVA Model
8512, 2-kVA Model 8520, and 4-kVA
Model 8540. Output voltage extends to
310 VAC with frequencies from 5 to 1,200
Hz. He said the sources cover a variety
of applications, providing, for example,
a 310-VAC output for LED ballasts.
Piotrowski cited a
trend toward higher
power density (smaller, lighter sources per
VA output), noting
that sources are often
part of a larger system where rack space
comes at a premium.
"The 8505, 8512, and
8520 all are 2U rackmountable sources,"
he said. "The 8540 is
4U rack-mountable at
62 lbs. That's a 33% reduction in rack-mount
size and 25% reduction
in instrument weight
from our previous series," he said.
Other features of
the series include
THD ≤ 0.3% at 50/60
Hz (offering low total
harmonic distortion
for functional testing); LIST, STEP, and
PULSE modes to cover
SEPTEMBER 2020 EVALUATIONENGINEERING.COM

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Evaluation Engineering

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