Latest Power Technical Articles

The choice to ground or float a power supply is not always clear in the NEC. This article explains floating or fixing a…

The choice to ground or float a power supply is not always clear in the NEC. This article explains floating or fixing a DC supply with respect to ground and how circuits can be functionally constructed both ways.

Since their creation, DC motors have become a part of our everyday lives. In this article, we’ll examine the…

Since their creation, DC motors have become a part of our everyday lives. In this article, we’ll examine the differences between various types of field-wound and permanent magnet DC motors.

Electromagnetic devices like motors and transformers rely on electric currents that drive magnetic fields which, in turn,…

Electromagnetic devices like motors and transformers rely on electric currents that drive magnetic fields which, in turn, can drive current on their own. That’s not always a good thing.

Learn about various ways to activate directional control valves for fluids using manual input, air pilot sources, and…

Learn about various ways to activate directional control valves for fluids using manual input, air pilot sources, and electrical controls. Sometimes, valves even use a mix of multiple power sources.

Power and control interruptions are, at best, problematic. In some applications, it’s catastrophic. Learn about…

Power and control interruptions are, at best, problematic. In some applications, it’s catastrophic. Learn about redundancy for the system, power supplies, control devices, and network topologies.

Even though electrical safety practices have existed for over a century, arc flash safety has only gained traction in…

Even though electrical safety practices have existed for over a century, arc flash safety has only gained traction in recent decades. This article discusses the danger and prevention of arc flash injury.

The simple tasks can lead to the most failures. Basic practices in the wiring assembly stages of a project can lead to…

The simple tasks can lead to the most failures. Basic practices in the wiring assembly stages of a project can lead to long-term success or haunting tales of intermittent yet persistent failures.

Some terminology, like 'normally open' and 'normally closed' switch contacts, is common throughout industry but can still…

Some terminology, like 'normally open' and 'normally closed' switch contacts, is common throughout industry but can still be confusing, misleading, or even hazardous if not properly understood.

Electrical grounding is used to accomplish several different tasks, but none more important than for the safety of users…

Electrical grounding is used to accomplish several different tasks, but none more important than for the safety of users and equipment while maintaining strict adherence to regulations.

Learn all about the power supply: modular and built-in devices that deliver electricity to the PLC backplane and modules,…

Learn all about the power supply: modular and built-in devices that deliver electricity to the PLC backplane and modules, and learn the difference between control and field device power delivery.

Many online sources explain how to reverse a 3-phase motor; this article will discuss the electrical principles that…

Many online sources explain how to reverse a 3-phase motor; this article will discuss the electrical principles that define why it works and how the phase relationships determine the rotation direction.

Building precise rotating or linear systems often costs a lot! When is it justified to spend the extra cost to design and…

Building precise rotating or linear systems often costs a lot! When is it justified to spend the extra cost to design and build such a system, and what are the different components and system types?

This article investigates the basic principles of inverters, different types of DC-to-AC conversion, and common…

This article investigates the basic principles of inverters, different types of DC-to-AC conversion, and common applications for generating AC voltage in manufacturing.

We know what a circuit breaker is meant to do: stop the flow of electricity in case of a fault or failure. But just like…

We know what a circuit breaker is meant to do: stop the flow of electricity in case of a fault or failure. But just like fuses, breakers and overloads respond differently depending on the load.

This article investigates the basic components and wiring conventions for common three-phase motor starter…

This article investigates the basic components and wiring conventions for common three-phase motor starter configurations, including direct online, reversing, and star-delta.

Complete wiring guide for 3-phase motor starters with and without overload (OL) relays.

Complete wiring guide for 3-phase motor starters with and without overload (OL) relays.

Effectively managing data includes processing it after initial collection: performing calculations, reviewing for…

Effectively managing data includes processing it after initial collection: performing calculations, reviewing for anomalies, and displaying the data for easier actionable insights.

Have you ever heard of a relay? Of course you have. There are many different kinds, plus hundreds of different trade…

Have you ever heard of a relay? Of course you have. There are many different kinds, plus hundreds of different trade lingo names. What are some of the most common, and how do we use them?

Knowing what kind of control system to use: that’s a question that must be answered before setting up the factory…

Knowing what kind of control system to use: that’s a question that must be answered before setting up the factory floor. Why would someone choose pneumatic over electrical controls?