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…
Circuit and CT Hookup Detection with the Seeker+
Setting up a power quality recorder has always meant double-checking the circuit type and every current transformer (CT), the clamp that measures current. A CT on the wrong phase or…
Seeker+ No-Initialization Recording in PQ Canvass
Every PMI recorder before the Seeker+ starts a recording with an initialization step: the measures, averaging interval, and capture thresholds are chosen up front, bundled into a settings file, and…
Overview of the Seeker+
The Seeker+ runs a power quality survey right out of the box. Mount it, energize it, and it detects the circuit hookup and logs every measure it supports, each aggregated…
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…
PMI Recorders and Starlink
As electric utilities, industrial facilities, and renewable generation sites expand into remote off-grid locations, reliable cellular connectivity is not always available. Low Earth Orbit (LEO) satellite communications, specifically Starlink, offer…
Introduction to Supraharmonics
As electronic power converters are increasing in prevalence on the grid, especially EV chargers, photovoltaic inverters, variable frequency drives, and LED lighting systems, a new power quality issue is arising…