The Seeker power quality recorder includes a variety of mechanisms to retrieve measurements. One of is Modbus, a protocol often used for communication with industrial electronic devices. The protocol is…
Ferroresonance in Solar Step-Up Transformers
This paper explores the unique risks of ferroresonance within solar photovoltaic (PV) installations, specifically focusing on the interaction between step-up transformers and system capacitance. We will examine why solar sites…
Voltage Unbalance Within PQ Canvass Compliance Reports
Power Monitors, Inc.'s PQ Canvass is a secure, cloud-based platform built for power-quality (PQ) analysis. PQ Canvass has a beta feature of automated "compliance reports" that transform data uploaded from…
Symmetrical Components from Stripchart Data
Symmetrical components can be useful in a PQ investigation, especially in cases of voltage imbalance, where the customer's negative sequence current can help determine their contribution to the imbalance. Many…
Getting PQ Data from your SCADA System
DNP3 (Distributed Network Protocol) is a communication protocol used primarily in utilities and industrial settings for automation and control systems. It is designed to enable reliable, secure communication between control…
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…
Working with Live Data in PMI View
PMI View’s live data pages show waveforms, phasors, and tabular values from a connected device, updating as you watch, without interrupting an active recording. During initialization, the live data pages…
Event Timing in Power Quality Investigations
In the complex landscape of electrical distribution, identifying the origin of power quality disturbances requires more than just high-speed sampling; it demands precise temporal synchronization across the entire monitoring network.…
Detecting Loose Neutrals with Merlin™
A loose neutral is one of the most dangerous faults a single-phase service can develop, and one of the least likely to announce itself. The connection does not fail outright.…
Revolution Download in PQ Canvass
Revolution meters are compact, cellular-connected power monitors. Unlike the Tensor, Seeker, Guardian, and Bolt devices, which initiate their own uploads to PQ Canvass, Revolutions do not push their recordings to…
PQ Canvass API Access
Introduction Electric utilities rely on power quality monitoring to maintain grid reliability, meet regulatory requirements, and respond to disturbances across their distribution networks. As monitoring deployments grow — spanning substations,…
