Tech Guide to Single Phase Induction Motors

This article aims to explain the theoretical workings of single-phase induction motors in a way that individuals without an engineering background can understand. By the end of this article, readers should be able to describe the driving force behind the armature’s motion, how rotation is maintained, the reasons for needing start mechanisms, and the operational […]

Indirect Component Testing using Common Electrical Points

This blog describes how to test components indirectly without unnecessary disassembly. You’ll save time by testing components remotely via easily accessible areas such as the console of an appliance using what we call “shared electrical points” or SEPs. In this blog, we will highlight two main advantages of using SEPs: first, the ability to remotely […]

Unsustainability of Loose High-Current Connections

Loose upstream connections in voltage sources can cause “voltage loss” in high current loads. This is because a voltage divider (and incidental secondary load) is created by the loose connection, which robs the primary load of available voltage. In doing this, the loose connection dissipates power (in the form of heat). Why Loose Connections are […]

Line-Voltage Testing Cheat Sheet

This blog describes a quick way to determine if you have an incoming voltage problem that is causing appliance issues. By using the provided flowchart and a LowZ meter, you can accurately identify if you have a compromised voltage source related to L1, L2, or Neutral. I have seen many approaches to determining compromised voltage […]

Klein CL800 Clamp Multimeter Review, Theory, and Usage

This article explains the usage, describes the operational theory, and provides a through review of the Klein CL800 multimeter. You will learn how to use this meter, understand the theory behind the functions, and see how these functions compare to their claimed specifications. The theory behind each function, when noted, will be shown in bold […]

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The War of the Currents – DC will Replace AC

AC power in the home has been around since near the end of the 19th century. Almost all of world’s power distribution infrastructure is based on it. In fact, there was a time when practicality no other technology would work. It had superior transmission efficiency and was compatible with emerging industrial-age motor technology. However, based […]

What is Impedance?

What is Impedance What’s the difference between Impedance and Resistance? We hear the term “impedance” all the time. What is it though? Why not just use the term resistance? That’s because in AC circuits, resistance, which is the opposition to current flow, is called impedance. But unlike resistance, impedance can also include the effects of […]

Electricity – Talk the Talk

Articulating Electrical Behavior is Important As a technician, it is crucial to have a fundamental understanding of how electricity works. It’s also important to articulate that information in a functionally-accurate and understandable way. By effectively describing the electrical scenarios you come across, you can impress your customers, more readily seek assistance from and provide support […]