Short Circuit Current Calculation

Short circuit current manual calculation in Excel and ETAP

What you'll learn

Short circuit current calculation by hand and ETAP

Familiar with IEC 60909-0 Standard and its equations

Compare the results by using ETAP short circuit tool

Knowledge on impedance calculation of power system components in case of short circuit

Calculate short circuit currents of your circuits based on single lines

Requirements

Basic level circuit analysis

Description

In some conditions during your studies, manual calculation can be required due to control issues or for the purpose of just learning. In my knowledge sharing videos on short circuit current calculations:We will look through the definitions, terms and equations in IEC 60909 Standard. After quick review, you will find exercises on short circuit current manual calculations (Excel) based on IEC 60909 Standard.Impedance of power system components and short circuit current on fault location can be calculated according to IEC 60909-0 Standard. Initial symmetrical current, peak short circuit current, breaking current, steady state short circuit current, dc component of the short circuit current, asymmetrical breaking current are calculated considering balanced or unbalanced fault conditions by using equations. Exercises include medium voltage induction motor contribution to short circuit current, short circuit current calculation based on balanced fault and line to line fault condition in case of generator connection, parallel equivalent impedance of power system components in complex number and short circuit current in power plant auxiliary which contains medium voltage and low voltage induction motors. After manual calculations using Excel for each exercise, the results are compared by ETAP short circuit tool.At the end of the videos, you will be familiar with equations, relevant terms and definitions stated in IEC 60909 Standard. You will be able to calculate short circuit currents of your circuits based on single line by manual calculation or ETAP software.

Overview

Section 1: Giriş

Lecture 1 Introduction

Lecture 2 Source Documentation and References

Section 2: Exercise on Medium Voltage Induction Motor Contribution to Short Circuit Current

Lecture 3 Exercise on Medium Voltage Motor Contribution Part-1

Lecture 4 Exercise on Medium Voltage Motor Contribution Part-2

Lecture 5 Exercise on Medium Voltage Motor Contribution Part-3

Section 3: Exercise on Generator Connection with Balanced and Line to Line Fault

Lecture 6 Balanced Fault and LL Fault with Generator Connection Part-1

Lecture 7 Balanced Fault and LL Fault with Generator Connection Part-2

Lecture 8 Balanced Fault and LL Fault with Generator Connection Part-3

Section 4: Parallel Connected Power System Components

Lecture 9 Parallel Connected Power System Components Part-1

Lecture 10 Parallel Connected Power System Components Part-2

Lecture 11 Parallel Connected Power System Components Part-3

Section 5: Exercise on Power Plant Auxiliary

Lecture 12 Power Plant Auxiliary Part-1

Lecture 13 Power Plant Auxiliary Part-2

Lecture 14 Power Plant Auxiliary Part-3

Lecture 15 Power Plant Auxiliary Part-4

Lecture 16 Power Plant Auxiliary Part 5

Electrical/Electronics Engineers, Electrical Technicians, Students,