We specialize in equipment for electric power quality immunity, and we provide
third-party test and certification services for SEMI F47, SEMI E6, SEMI S23, IEC 61000-4-11, IEC 61000-4-30, IEC 61000-4-34, and IEEE 1100.
Disturbances on electric power mains, like voltage sag or voltage dip events,
can disrupt or damage sensitive electronic equipment. We fix these problems.
Power disturbance generators take good, clean electric power, and foul it up.
We build and sell power disturbance generators,
with portable instruments rated at up to 480V, 3-phase, 200 amps.
Sometimes called a sag generator or a dip generator, these instruments create reliable, repeatable voltage dip and voltage swell events.
We manufacture power quality sensors for
intelligent industrial equipment. The typical return-on-investment
for these inexpensive devices is measured in days. They capture voltage
sag and voltage dip events, voltage swells, and high-frequency impulses,
and have standards like IEEE 1100 and SEMI F47 built-in.
Now you can download Edition 3.0 of Alex McEachern's Power Quality Teaching Toy. English - Deutsch - Español - Français - Português - Italiano - Polski - Svenska - Româna
The program is FREE, so no support is available. Sorry...
This is an ideal program for engineers, and engineering students, who want to get an intuitive feel for power quality issues. Alex uses it in his power quality seminars around the world. It's a great toy - give it a try! Download the Power Quality Teaching Toy
For calibration, PSL maintains two ultra-accurate references: a 0.1 ohm resistor (actually 0.09999863 ohms), and a 1 volt source (actually 1.00000096 volts).
We use these references individually to calibrate our calibration instruments, and we combine them to generate reference currents.
Our references are periodically calibrated at NIST directly against the United States National Working Standards.
For calibrating higher AC voltages -- one of our particular interests -- we use a calibration-grade ratio transformer to bring the unknown voltage into our calibration range.