Electrical Engineering Guides

Basic

Traveling Waves in Power Lines: Concepts & Fault Location

Traveling Waves on Lines A traveling wave on a line refers to a voltage or current wave propagating along the line; it is also defined as a voltage or current signal traveling along a conductor. Steady-state traveling wave: A traveling wave propagating along the line during the normal operation of a

By Leon 07/28, 2025
Basic

Load Frequency Control (LFC) & Turbine Governor Control (TGC) in Power System

Brief Introduction to Thermal Generating Units Electricity generation relies on both renewable and non - renewable energy resources. Thermal generating units represent a conventional approach to power production. In these units, fuels such as coal, nuclear energy, natural gas, biofuel, and biogas ar

By Edwiin 06/06, 2025
Basic

Why 3-Phase Power? Why Not 6, 12 or More for Power Transmission?

It is well-known that single-phase and three-phase systems are the most prevalent configurations for power transmission, distribution, and end-use applications. While both serve as fundamental power supply frameworks, three-phase systems offer distinct advantages over their single-phase counterparts

By Edwiin 06/05, 2025
Basic

How Many Poles and Towers are Situated Within a 1-km Span?

The number of distribution poles and transmission towers within a 1-kilometer stretch of overhead lines varies significantly based on multiple factors, including voltage level, power line type, supporting structure, geographical location, local regulations, and specific grid requirements. In urban a

By Edwiin 06/05, 2025
Basic

Synchronizing Power and Torque Coefficient

Definition of Synchronizing Power Synchronizing power, denoted as P sy n , is defined as the variation in synchronous power P with respect to changes in the load angle delta;. Also referred to as the stiffness of coupling , stability factor , or rigidity factor , it quantifies a synchronous machine

By Edwiin 06/04, 2025
Basic

What is a Per Unit System?

Per-Unit System in Electrical Machine Analysis For the analysis of electrical machines or their systems, diverse parameter values are often required. The per-unit (pu) system provides standardized representations for voltage, current, power, impedance, and admittance, streamlining calculations by no

By Edwiin 06/03, 2025
Basic

Resonant Frequency

In a series circuit, the resonant frequency condition occurs when the inductive reactance equals the capacitive reactance. Changing the supply frequency alters the values of X L = 2 pi;fL and X C = 1/2 pi;fC.As the frequency increases, X L rises while X C falls. Conversely, a decrease in frequency c

By Edwiin 06/02, 2025
Basic

Voltage Source and Current Source

Definition of Electrical Source A source is a device that converts mechanical, chemical, thermal, or other forms of energy into electrical energy. As an active network element, it serves the purpose of generating electrical energy. In electrical networks, the primary types of sources are voltage sou

By Edwiin 06/02, 2025
Basic

Phasor Method for Solving Parallel Circuits

When dealing with parallel circuits, multiple branches are connected in parallel. Each branch contains components such as resistors, inductors, and capacitors, forming a series circuit within that branch. Each branch is first analyzed separately as a series circuit, and then the effects of all branc

By Edwiin 05/30, 2025
Basic

What is Splicing of Optical Fibers？

Definition : Optical fiber splicing is a technique employed to connect two optical fibers. In the realm of optical fiber communication, this technique is utilized to create long optical links, facilitating superior and long - distance optical signal transmission. Splicers are essentially couplers th

By Edwiin 05/30, 2025
Basic

What is Step Index Fiber?

Definition of Step-Index Fiber Definition : A step-index fiber is a type of optical fiber classified based on its refractive index distribution. As an optical waveguide, it features a constant refractive index within the core and another constant refractive index within the cladding. Notably, the re

By Edwiin 05/29, 2025
Basic

What is Coefficient Of Coupling？

The fraction of the magnetic flux generated by the current in one coil that links with the other coil is defined as the coefficient of coupling between the two coils, denoted by k . Consider two coils, coil A and coil B. When current passes through one coil, it generates magnetic flux. However, not

By Edwiin 05/29, 2025

Free Expert Guides on Power Systems, Circuit Design & Electrical Troubleshooting

All

Traveling Waves in Power Lines: Concepts & Fault Location

Load Frequency Control (LFC) & Turbine Governor Control (TGC) in Power System

Why 3-Phase Power? Why Not 6, 12 or More for Power Transmission?

How Many Poles and Towers are Situated Within a 1-km Span?

Synchronizing Power and Torque Coefficient

What is a Per Unit System?

Resonant Frequency

Voltage Source and Current Source

Phasor Method for Solving Parallel Circuits

What is Splicing of Optical Fibers？

What is Step Index Fiber?

What is Coefficient Of Coupling？

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