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Transmission Line Losses and Efficiency Optimization—Part 5: FACTS

Transmission Line Losses and Efficiency Optimization—Part 5: FACTS

Learn about the role of Flexible AC Transmission Systems (FACTS) in enhancing power system efficiency, stability, and controllability. We’ll look…


Design Requirements of Transmission Line Towers

Design Requirements of Transmission Line Towers

This article provides an overview of transmission line towers, covering their structural designs, functional classifications, mechanical loading…


Calibration Ensures Confidence in Current Measurement

Calibration Ensures Confidence in Current Measurement

Regular calibration is crucial to ensure that your measurement equipment is measuring accurately. Learn the important standards, on-line resources,…


Introduction to Transmission Line Insulator Design

Introduction to Transmission Line Insulator Design

Learn about the basic characteristics and design parameters for insulators in overhead transmission lines.


Transmission Line Losses and Efficiency Optimization—Part 2

Transmission Line Losses and Efficiency Optimization—Part 2

Learn how frequency impacts transmission line parameters—resistance, inductance, capacitance, conductance—due to skin/proximity effects,…


Static vs. Dynamic ZIP Loads in IEEE Power Testing

Static vs. Dynamic ZIP Loads in IEEE Power Testing

Learn how dynamic and static ZIP loads affect power flow and stability in IEEE test systems using impedance, current, and power models.


Locating the Disconnecting Means on a Motor Branch Circuit

Locating the Disconnecting Means on a Motor Branch Circuit

Learn to locate the controller and local motor disconnecting means in a motor branch circuit.


Understanding Motor Control Centers

Understanding Motor Control Centers

Learn about the NEC requirements for motor control centers.


Selecting Motor Controllers

Selecting Motor Controllers

Learn how to select the right motor controller for your application.


Protecting Motor Feeders From Short Circuits and Ground Faults

Protecting Motor Feeders From Short Circuits and Ground Faults

Learn how to protect motor feeders and other loads against short circuits and ground faults.


A Look at the Success of Slim DIN-Rail Mounted Power Supplies

A Look at the Success of Slim DIN-Rail Mounted Power Supplies

DIN-rail mounting has revolutionized electrical cabinets since the idea was first introduced in the 1920s. Learn why the system is so successful.


Protecting Motor Branch Circuits From Short Circuits and Ground Faults

Protecting Motor Branch Circuits From Short Circuits and Ground Faults

Protecting individual and group motor branch circuits against short circuits and ground faults is essential. Learn how here.


Sizing Overload Protection for Motors Above 1 HP

Sizing Overload Protection for Motors Above 1 HP

Learn the rules for sizing overload protection for motors above 1 hp.


Calculating Conductor Ampacity to Carry Motor Current

Calculating Conductor Ampacity to Carry Motor Current

Learn to compute the ampacity and size of circuit conductors for motors rated 1 kV or less.


The Meaning Behind Motor and Multi-Motor Markings

The Meaning Behind Motor and Multi-Motor Markings

Learn what motor and multi-motor equipment markings required by the National Electrical Code mean.


The Difference Between Ground and Neutral Conductors

The Difference Between Ground and Neutral Conductors

Learn about how the ground compares and contrasts with the neutral wire and why this wiring is important for safety in control cabinets and other…


DC Power Supplies: To Ground or Not To Gound?

DC Power Supplies: To Ground or Not To Gound?

Should you connect a DC power supply to ground or not? The answer is not a straightforward yes or no. This article explores the benefits and…


Understanding PV System Standards, Ratings, and Test Conditions

Understanding PV System Standards, Ratings, and Test Conditions

Learn about PV module standards, ratings, and test conditions, which are essential for understanding the quality and performance of photovoltaic…


NEC Basics: Impedance-Grounded Systems and Equipment Grounding Above 1 kV

NEC Basics: Impedance-Grounded Systems and Equipment Grounding Above 1 kV

Learn about limiting the available ground-fault current and how to ground equipment above 1 kV.


Basics of Capacitance

Basics of Capacitance

Learn about the unit of capacitance, explore capacitance parameters, and understand how capacitance behaves in series and parallel configurations.