The CBEMA and ITIC curves are both used to visibly represent voltage events. The terms and associated curves are used somewhat interchangeably even though there are subtle differences between the…
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52 results in Using PMI Recorders — Clear
Using PMI Recorders
Measuring Frequency with PMI Recorders
Line frequency is the most tightly controlled parameter in the electrical distribution system. Since almost all generation in a region is connected essentially in parallel, the frequency is inherently synchronized…
Monitoring a 2½ Element Wye
A 2½ Element WYE Configuration uses 3 current phases and 2 voltage phases to calculate what is on the third voltage phase in order to measure the total power on…
Understanding Socket Recorder Form Factors
There are a large combination of meter forms for single and poly-phase socket recorders. Understanding the different form factors can be challenging when choosing a meter base specific socket recorder.…
Optimizing Waveform Capture Triggering
Waveform capture is the highest resolution data available for PQ analysis and is often crucial in solving tricky issues. Successfully triggering on the waveform doesn't have to be tricky, though.…
Flex CT Overview
This white paper describes what a Flex CT is, how it works, and a brief history on its development. Details are given on how to use the Flex CT to…
Comparison of Eagle 440 and Revolution PQ Analyzers
PMI manufactures several stand-alone power quality analyzers that are designed to fit in tight enclosures and wirelessly transmit recorded data. This paper outlines the differences between two of those devices,…
kWh Variations Between PMI Recorders and Revenue Meters
This white paper discusses some of the reasons that PMI's power quality analyzers may differ with the exact amount of power indicated by a power company's revenue meter. There are…
Hookup Diagram Walkthrough Differential Input
This white paper describes the proper hookup connections for differential input style PMI recorders. PMI offers the ability to monitor with two styles of voltage input connections to provide the…
Optimizing Current Resolution Using TLARs or Flex CTs
This white paper describes how to select the proper hardware for high resolution current monitoring with PMI Recorders.
Flicker Standards Used By PMI Recorders
This white paper reviews Flicker theory and details the Flicker Standards that are used by PMI recorders. Most PMI recorders have the ability to measure Flicker. Many models and options…
Waveshape Triggering for Waveform Capture
A new method of triggering waveform capture in the Revolution and Vision is introduced, designed for capturing changes in power line waveform shape.
