Latest Power Quality Articles

Grounding Electrode Conductor - NEC Section 250 Definition

A grounding electrode conductor connects the grounding electrode to the electrical system, enabling fault reference, voltage stability, and compliant grounding performance. The broader purpose of this conductor is to establish system reference through grounding, as explained in our formal definition of electrical grounding. It connects the grounding electrode to the system earthing point, carrying the earth reference into the electrical system so that fault conditions, bonding continuity, and voltage stabilization can function as intended. Without this connection, the grounding electrode remains electrically isolated. Without the electrode, the conductor has no reference. The performance of the entire grounding system depends on…

How to Calculate Power Factor in AC Circuits

How to calculate power factor means dividing real power by apparent power, but the real engineering issue is what the result changes. A low PF raises current, increases heating, loads transformers and feeders, reduces available capacity, and can trigger utility penalties or correction decisions. Power factor is calculated as PF = kW ÷ kVA, but the engineering decision starts after the formula is solved. The real question is whether a low value reflects normal reactive loading, a correction needed, a distorted waveform, or a system condition that is increasing current and consuming available capacity. In plant and utility environments, a…

Electrical Ground Rod Installation Guide

Electrical ground rod installation determines how effectively fault current, lightning energy, and surges dissipate into soil. Proper depth, spacing, bonding, soil conditions, and code-aligned placement decide whether a grounding system protects assets. That reality is why ground rod installation is not a trivial task or a generic “how-to.” It sits at the intersection of soil behavior, conductor physics, and code intent, and its success depends as much on judgment as it does on technique. Electrical Ground Rod Installation in Real Systems Installing a ground rod is often treated as a procedural obligation rather than a system decision. In practice,…

Electrical Grounding Definition

Electrical grounding is the process of connecting electrical systems to the earth to ensure safety and stability. It protects people and equipment by redirecting excess electricity, such as lightning or electrical faults, into the ground, thereby reducing the risk of shock and fire hazards. Understanding the Definition of Electrical Grounding in Electrical Safety A grounding and bonding system requires a physical connection between equipment and the earth, achieved through a ground rod driven into the ground. Electrical grounding, also known as earthing, is a fundamental safety practice in all electrical systems. It involves connecting parts of the electrical circuit…

How to Find Power Factor

Power factor reflects how efficiently your electrical system uses energy. Finding this value accurately is key to identifying energy losses, improving performance, and lowering utility bills. Power Quality Analysis Training Power Factor Training Request a Free Power Quality Training Quotation Understanding how to find power factor involves measuring the ratio between useful energy (watts) and the total energy flowing (volt-amperes) through your equipment. Fortunately, with the right tools and process, the calculation is straightforward. To understand the basics, see our What is Power Factor? guide. What is Power Factor? At its core, power factor is a measure of efficiency. It compares…

Power Factor Calculation

Power factor calculation determines how effectively an AC electrical system converts supplied power into useful work by comparing real power to apparent power. The governing equation is PF = kW / kVA, and in sinusoidal systems it is also expressed as PF = cos φ, where φ is the phase angle between voltage and current. In practice, true power is measured in kW, apparent power in kVA, and reactive power in kVAR. These values show how much of the current drawn by a load produces useful output and how much circulates as reactive demand. Poor power factor increases current for…

Electrical Ground Clamp and Connection

An electrical ground clamp is a small connection point that determines whether a grounding system remains electrically continuous under corrosion, vibration, and fault stress, or quietly degrades until a surge or fault event exposes the weakness. A ground clamp is not just a way to hold a conductor in place. It is the interface where copper meets metal, where pressure, surface condition, and material compatibility determine whether the intended return path remains predictable over years of service. That matters because grounding performance is not something you notice on a normal day. You notice it when something goes wrong, and the…