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Connecting to power quality loggers remotely

Power Quality loggers are often placed in the field for long periods, so most don’t have a display. Besides attracting attention and so increasing the chance of theft, a display is simply not needed as you don’t normally use...

How much is poor power quality costing you?

Detecting energy waste and improving uptime is an important aspect of daily work in any facility. Diagnosing and solving poor power quality can be a challenge, though, with many variables to take into consideration. Prevent downtime by detecting poor power...
power quality cabinet

How to use a phasor diagram?

When you perform an energy or power quality survey you need to measure days or weeks of data, imagine the disappointment if when you return to the logger after that time you discover that you have failed to capture...
Harmonics

Harmonics – where do they come from?

Harmonics can cause all sorts of problems: tripped relays, failed transformers, damaged capacitor banks and even cracked motor shafts. But where do they come from, and how do you cure them? Non-linear loads like low-energy lights, VSDs, switched-mode power supplies...
435-II Power Quality and Energy Analyzer

For installation, a digital multimeter is no longer enough

Harmonics can cause high neutral currents in three-phase systems — even ones that are balanced. They heat up cables, which can cause fires. Many installers now check their work using a multimeter, but multimeters can't measure harmonics. Equipment installation needs...

How a power facility reduced 40% of calibration time

Many facilities, such as power plants or production facilities, depend on a strong preventive maintenance program. These programs are essential to keep processes running safely and efficiently. Performing accurate and consistent pressure calibration on process instrumentation is an integral...

Electric motor efficiency and reliability: mechanical power and derating on in-service electric motors

Electric motors are the key component in many industrial processes, they can consume up to 70% of the total energy consumed in an industrial plant and consumes 46% of all generated electricity worldwide.  The cost of downtime due to...
Why peak demand management matters

Why peak demand management matters

There are hundreds of power quality measurements you can take on electrical systems and equipment. Peak demand management is one of the best ways to help you uncover hidden costs, protect equipment from damaging conditions and reduce unscheduled downtime,...

Why does cable length between VFDs and motors matter?

It is an undeniable fact that frequency inverters provide the most benefits of the many methods of controlling induction electric motors. However, in some cases the use of a frequency inverter can have a negative effect on the motor....

Current Clamps; AC, DC or Rogowski… what is the difference?

Since explaining the difference between these three separate ways of measuring current needs to include the principles of measurement, this blog is a little longer than normal. Nevertheless, it is worth reading to get the difference and avoid making...

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Choosing the right current clamp

Many users of an energy logger, power logger or power quality analyzer usually use the tool’s supplied current clamp in their application. Since the...

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