Latest Power Technical Articles

Relay and other coil devices pose a few confusing questions: How can the relay still work if you connect a DC supply in…

Relay and other coil devices pose a few confusing questions: How can the relay still work if you connect a DC supply in reverse? How can an alternating voltage attract and hold the load consistently?

The PCU400 can handle all known industrial protocols and forward them to the master station to get an effective…

The PCU400 can handle all known industrial protocols and forward them to the master station to get an effective connection between the SCADA system and the data from the manufacturing or system process.

The control and visualization of power plant processes through SCADA improves the supervision, coordination, and security…

The control and visualization of power plant processes through SCADA improves the supervision, coordination, and security of the power system operations.

All real-time power system data can be communicated to a central control system to protect main equipment from…

All real-time power system data can be communicated to a central control system to protect main equipment from overloading. Learn how to create a project directory structure, hardware configuration, and set network tree parameters for real-time control and monitoring.

Remote locations are notoriously difficult to supply power, yet they are the exact locations where many data points must…

Remote locations are notoriously difficult to supply power, yet they are the exact locations where many data points must be collected. How can IoT devices be designed to conserve power to last for months or even years?

The diverse power terms in electrical generation systems include active, reactive, and apparent power, all of which lead…

The diverse power terms in electrical generation systems include active, reactive, and apparent power, all of which lead to the introduction of ‘power factor’ effectiveness in an AC circuit.

Grounding transformer connections presents its own set of challenges. This article addresses these challenges and several…

Grounding transformer connections presents its own set of challenges. This article addresses these challenges and several common configurations for control transformer grounding.

As summer heat continues to scorch the northern hemisphere, manufacturers face potential equipment damage and downtime.…

As summer heat continues to scorch the northern hemisphere, manufacturers face potential equipment damage and downtime. Learn about the ways extreme heat can damage automated equipment and systems. 

Today’s digital multimeters (DMMs) are inexpensive, accurate, and easy to use, but sometimes a problem with the circuit…

Today’s digital multimeters (DMMs) are inexpensive, accurate, and easy to use, but sometimes a problem with the circuit or the measurement can cause incorrect readings. Learn to interpret and fix these problems.

Learn about power side and ground side switching and how designing these circuits to have predictable failures from the…

Learn about power side and ground side switching and how designing these circuits to have predictable failures from the beginning helps in system maintenance and troubleshooting.

The CTRL F3 series reviews field studies and failures in the field focused on control fails, fixes, and facts. This…

The CTRL F3 series reviews field studies and failures in the field focused on control fails, fixes, and facts. This article covers an explosion at an industrial sawmill.

DC voltage systems exist to provide controllers and field devices with stable power, but it is not always clear when…

DC voltage systems exist to provide controllers and field devices with stable power, but it is not always clear when these systems should be bonded with the earth ground of the AC line voltage supply.

LiDAR and SLAM enable AMRs and drones to effectively navigate dynamic industrial environments. The right selection of…

LiDAR and SLAM enable AMRs and drones to effectively navigate dynamic industrial environments. The right selection of high-power laser diodes is critical for accurate performance of LiDAR/SLAM systems

Control engineering is integrally woven together with electricity and electrical circuits. Even so, sometimes the most…

Control engineering is integrally woven together with electricity and electrical circuits. Even so, sometimes the most basic scenarios become misunderstood through lack of training or experience.

Power supplies tend to get a reputation as one of the most important power considerations of a DC control circuit - but…

Power supplies tend to get a reputation as one of the most important power considerations of a DC control circuit - but we can’t ignore other key players: power filters, converters, and backup power modules.

In honor of May the 4th, Star Wars Day, we compare the sources and applications of the two most common force-delivery…

In honor of May the 4th, Star Wars Day, we compare the sources and applications of the two most common force-delivery systems - mechanical and hydraulic.

Large DC and AC motor drives often provide terminals for installing a braking resistor. What are these resistors, and how…

Large DC and AC motor drives often provide terminals for installing a braking resistor. What are these resistors, and how do they slow down a machine? What hazards and cautions must be considered?

Redundancy and safety are often seen together in industrial safety systems. Safety relays monitor emergency devices to…

Redundancy and safety are often seen together in industrial safety systems. Safety relays monitor emergency devices to switch contacts based on status - but what makes them different from normal relays?

AC motors are common throughout industry - easily controlled by VFDs and without the maintenance that comes with DC…

AC motors are common throughout industry - easily controlled by VFDs and without the maintenance that comes with DC brushes. So then, why are DC motors still used in certain applications?