Introduction PMI View for iOS continues to evolve with new features and improvements since our last white paper. This document highlights the significant additions that enhance your ability to perform…
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Auto-Correction of CT Hookup
Sometimes when hooking up CTs for a device, a user will inadvertently place the CTs in the wrong configuration. Maybe the channel 2 CT was placed on the third phase…
Symmetrical Components
Power systems ideally operate in a balanced state, with equal voltages and currents across all phases. However, real-world scenarios often involve unbalanced conditions that can degrade power quality. Symmetrical components…
Assessing Impact Loads in PQ Canvass
Impact loads are frequent and very high current surges which are usually greater than the rating of the transformer on which they occur. They present as repeated near-short circuit conditions,…
Voltage Regulation in PQ Canvass
PQ Canvass is a web-based power quality analysis software developed by Power Monitors Inc. It combines the foundational elements of Canvass with the features of ProVision, providing a set of…
Impact Loading – PQ Canvass
Impact loading occurs from the inrush current of large motors, welding apparatus, electric arc furnaces, or similar loads. The current pulses are less than short circuit values but may be…
Detecting Loose Neutrals
A loose neutral is not obvious to the naked eye but can lead to significant damage. The symptoms vary widely, and proper detection is essential to mitigation. This paper gives…
Record, Diagnose and Troubleshoot Oscillatory Transients
Oscillatory transients are caused by switching operations, nearby lightning strikes, or other impulsive noise exciting electrical resonances present on the network. The most common in the distribution system is defined…
Using PQ Canvass
PQ Canvass is an advanced cloud-based software application that enhances power quality analysis. PQ Canvass revolutionizes power monitoring with its comprehensive browser-based functionality, eliminating the need for additional software, and…
PQ Monitoring for Controlled Environments
The Tensor is an innovative PQ analysis tool introduced by Power Monitors. Inc. Equipped with cellular and WiFi communication options, the Tensor allows for continuous measurements wirelessly streamed for analysis…
Sizing a Backup Power Source
Sizing a backup power source is tedious. In an ideal world, every piece of equipment you need to protect would come with a spec sheet correctly detailing its power needs.…
Harmonic Calculations
In a normal distribution network, the fundamental frequency is that of the voltage driving source, nominally 60Hz. Steady state deviations from the ideal 60 Hz sine wave shape are “periodic,”…
