Electrical Single Line Diagrams, Read & Understand

Covering Low Voltage AC, Low Voltage DC, Medium Voltage & High Voltage Single Line Diagrams

What you'll learn
Learn how to read, understand & interpret Single Line Diagrams. How to extract information from the SLD
Realize the importance and roles of SLD
Realize the importance and roles of SLD
Extract relevant information from SLD
Identify various symbols of the component in an SLD
Read, understand and extract SLD for a LV (Low Voltage) ACDB Switchboard / Panel Board
Read, understand and extract SLD for a LV (Low Voltage) DCDB Switchboard / Panel Board
Understand Relay and Metering SLD
Read, Understand 132/11kV Single Line Diagram
Understand ANSI codes
Single Bus Single Breaker Scheme
Double Bus Double Breaker Scheme
Interlocking
Various protection relays installed at feeder
Distance Protection, Line differential protection, over current current, over / under voltage protection
Current and voltage transformer
Circuit Breaker, Isolator, Earth Switch, Busbar, power transformer

Requirements
Eager to learn.

Description
Course Title

Mastering Single Line Diagram

Covering Low Voltage AC, Low Voltage DC, Medium Voltage & High Voltage Single Line Diagrams.

Course Details

Welcome to the course of “Single Line Diagram”. In power engineering, a single-line diagram (SLD), also sometimes called one-line diagram, is a symbolic representation of a three-phase electric power system.

The one-line diagram has its largest application in power flow studies. Electrical elements such as circuit breakers, transformers, capacitors, bus bars, and conductors are shown by standardized schematic symbols. Instead of representing each of three phases with a separate line or terminal, only one conductor is represented.

Whenever it comes to start new project, define scope of work, Single line diagram is always the most important document to consider & prepare. Furthermore single line diagram is also required to prepare shutdown / maintenance method statement.

Following topics are covered in this training

Introduction to Single Line Diagram

Three Line Diagram

What is difference between single line and three line diagram

How to represent different element in Single line Vs three line diagram

Components of Single Line Diagram, we will see how these components are shown in drawings and how these components actually looks like.

Circuit Breaker

Isolator

Earth Switch

Power Transformer

Voltage Transformer

Current Transformer

Lighting Arrestor

Auxiliary Transformer

Mimic

Control Cubicle

Cable Compartment

Surge counter

Busbar

Local / Remote Control

High Speed Earth Switch

Three Position Switch

MV CB with draw out mechanism

Introduction to interlocking, Isolator & Circuit Breaker, Isolator and earth Switch, Bus bar isolator and busbar earth Switch

Cable Sealing End

SF6 to air bushing

NGR

Start point earthing through resistor / solidly earth

Continuous and short circuit rating of equipment

Understanding ANSI codes

Current Transformer Polarity

Current Transformer Cores

Protection and metering cores of current transformer

Why Current transformer secondary must of shorted for all times

Protection and metering classes of instrument transformers

What will happened if current transformer is connected with wrong polarity.

Metal Enclosed and Metal Clad Switch Gear

Synchronizing

SLD for wind power plant

Ring Main Units

Connections of wind turbines to loops

Zigzag transformer and why zigzag transformer is used

Why neutral point of star connected transformer is grounded

Incoming and outgoing feeder philosophy

Percentage impedance of transformer and its relationship with tap changer

Review ACDB Single line Diagram with interlocking

Review ACDB Single line Diagram with interlocking

Review 132/11kV Single bus Single Breaker Scheme Single line diagram

Review 132/11kV Double bus Single Breaker Scheme Single line diagram

Relay and metering SLD

Regards

Who this course is for
Students, Professionals, Diploma holders, Engineers