All Technical Articles >>>> Chief Editor

Transmission Line Energization Study
PSCAD
Chief Editor

Transmission Line Energization Study

In this article, Transmission Line Energization Study is demonstrated using Power Systems Computer Aided Design (PSCAD) software. This study illustrates the key points considered in a line energizing study. The PSCAD ‘Multiple-Run’ component is used to time the instant at

Read More »
harmonic frequency scan
General
Chief Editor

Harmonic Analysis Methods

Harmonic analysis methods help engineers to calculate system harmonic levels resulting from harmonic sources on the system. This also requires a knowledge of the harmonic source characteristics and a representation of the system frequency response characteristics. Below sections cover the

Read More »
Generator Excitation
Electrical Equipment
Chief Editor

Generator Excitation Control System

Introduction The basic function of a generator excitation control system is to provide a variable DC current to the synchronous generator field winding. By varying the DC voltage, and thereby the field current, the generator terminal voltage and reactive power

Read More »
WTG
Renewables
Chief Editor

Wind Turbine Modelling

Introduction Accurate wind turbine modelling helps engineers to understand and access the impact of wind generation on power system stability. With high wind penetration levels planned globally, the need for grid operators to quickly assess the impacts of wind generation

Read More »
etap wizard
ETAP
Chief Editor

ETAP Wizards

ETAP Wizards are time-saving project management tools which allow you to record and run any study at any time. The ETAP Wizards include the Scenario Wizard, Study Wizard, and Project Wizard as shown below: Using the ETAP Wizards, you will

Read More »
impedance method
Electrical Equipment
Chief Editor

Impedance Method For Calculating Voltage Drop During Motor Start

This article covers all about the introduction to impedance method for calculating voltage drop during motor start, sample hand calculation and its comparison with ETAP software. Introduction To Impedance Method Impedance method for calculating voltage drop during motor start involves

Read More »
per unit method
General
Chief Editor

Per-Unit Method

Fundamentally, the per-unit method (percentage method) is a calculating procedure. In this procedure, all equivalent system and circuit impedances are converted to a common kVA and kVbase. This permits the ready combination of circuit elements in a network where different

Read More »
Excess photovoltaic production
Photovoltaic (PV)
Chief Editor

Managing Excess Photovoltaic Production

Managing excess photovoltaic production is very important for the health of overall electrical network. When the locally produced power exceeds the loads consumption, there are several possible options for managing excess photovoltaic power production: Inject it to the grid Limit

Read More »
SELECTING THE RIGHT APPROACH FOR STARTING LARGE MOTORS
Electrical Equipment
Chief Editor

Selecting The Right Approach For Starting Large Motors

Selecting the right approach for starting large motors at the early stages of a project is very important. Hence, this selection will impact the integrity of the system, initial capital investment, operating costs and long-term reliability. This article helps in

Read More »
Stator Ground Fault Protection
Electrical Equipment
Chief Editor

Generator Stator Ground Fault Protection

Why Stator Ground Fault Protection is required? Generator stator ground fault protection is one of the indispensable schemes for protecting a generator stator winding. Dedicated stator ground fault protection is required for high-impedance-grounded machines. Because of stator winding construction, an

Read More »