Published onJune 19, 2024An overview on 80% vs 100% rated breakers with examplesbreakersneccecul-489A detailed comparison of 80% and 100% rated circuit breakers, including NEC and CEC code requirements, testing standards, and practical examples to help save on installation costs.
Published onMay 26, 2024What is Protective Device Isolation?arc-flashprotective-device-isolationETAPmain-protective-devicearc-flash-studyHow arc flash incident energy is affected by protective device isolation
Published onDecember 19, 2023Line current differential for industry?protectiondifferentialSELGEFeeder protection plus ANSI 87L — an overview
Published onDecember 14, 2023Submit your proposals earlyproposalsalescustomer-serviceWhy an early submission will set you apart
Published onDecember 13, 2023High-impedance vs low-impedance bus differentialdifferentialprotectionselimpedanceWhat bus differential protection method should you use?
Published onDecember 3, 20233 Simple Steps to Size a Distribution Power TransformertransformerprotectionsizingcableHow I demystify transformer protection and transformer cable sizing
Published onOctober 13, 2023How to set an SE-330 ground fault relaySE-330protectionground-faultngrProgram the neutral grounding resistor protection relay in a couple of simple steps
Published onSeptember 27, 2023Open-delta vs wye-connected potential transformers ptvtopen-deltaWhat kind of VT/PT should you use in your medium-voltage switchgear?
Published onAugust 15, 2023Explaining square root 3 in power systemstheorypower-systemsWhat is the significance of square root 3 in 3-phase power systems?
Published onAugust 2, 2023Weekly Project Progress Reportspower-systemsequipment-sizingtransformersOne of the most trust-building actions is to give your customer an unsolicited weekly project update.
Published onJuly 31, 2023Automated PDFs in AutoCADAutoCADautomationLSPLISPReduce keystrokes and clicks from 38 to 4 when PDFing AutoCAD drawings.
Published onJuly 30, 2023Transformer Inrush AnalogytransformersinrushThink of a water slide for transformer inrush...
Published onJuly 22, 2023Low-voltage fuses — what class to use?fuseslow-voltageprotectionAn overview of low-voltage fuses classes and their application
Published onJuly 19, 2023File structure for technical documentsfilesdocumentationorganizationA system for organizing your technical documents
Published onMay 25, 2016Current Transformer Specificationspower-systemsequipment-sizingtransformersTheory of current transformers, how to size them and how to avoid saturation.