Real-Time Power Quality Analysis Software Solution

Harmonic distortions occur when electrical distribution systems can have changes in frequencies due to common current and voltage variations. Harmonics distortion can damage machines, motors, overheat wires and cause power loss. Resolve’s analyses equipment in real-time queries millions of events across your whole estate in just seconds., email alerts or reports.

A voltage sag as defined by IEEE, is a short dip between 10%-90% RMS Root Mean Square voltage at 60-Hz. The duration of the voltage sag is one-half cycle and up to a minute. Although voltage sags can derive from the utility supply they are most often caused by in-building equipment. It can be caused by the addition of electric motors, changes to excessive loads, short circuit. Voltage sags, or dips, are the most typical issues that affecting power quality in industrial plants. Variable speed drives, process controllers, PLCs and motor starters are all sensitive to voltage sags resulting in costly downtime when they drop out.

A voltage swell occurs when there is an increase in the RMS Root Mean Square Voltage of between 1.1pu and 1.8 pu from one-half cycle and up to a minute. Improperly shutting off large loads such as motors, welders or furnaces shutdown on the system can cause a change in load impedance causing swells and leading to equipment overheating and electronics malfunction. Sag and Swell events can be identified through Resolve Power Quality monitoring analysis allowing you to resolve the issue and prevent future down-time and equipment damage.

Frequency variations are changes in the nominal supply frequency. The rotational speed of the generators that produce electrical energy is the function of supply frequency. If a generator load and capacity becomes unbalanced a frequency variation occurs. Deviations in frequency can disrupt logic systems and interfere with the operating speed of equipment. Resolve Power Quality can monitor, identify and alert the instance of frequency variations.

Power factor is the ratio of real power (or working power) measured in kilowatts (kW) to apparent power (or demand power) measured in kVA. Power factor expresses the efficiency of the power being provided. It is found by multiplying (kVA = V x A). The result is expressed as kVA units. If a circuit were 100% efficient, demand world be equal to supply. Many utilities add a demand charge to the bills of large customers to account for the instances where supply is lower than demand. Utilities apply surcharges to companies with low power factor. Resolve reports on power factor providing your business the energy audit data it needs to retrofit costly equipment and wiring.