Single Line Diagram

Name: Single Line Diagram
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Learn how to read, understand & interpret Single Line Diagrams. How to extract information from the SLD

Created byIconic Educademy, Iconic Techno, Iconic Techno Solution

Last updated 1/2022

English

What you'll learn

Read and understand Single Line Diagram
Extract relevant information from SLD
Realize the importance and roles of SLD
Identify various symbols of the component in an SLD
Identify various symbols of the component through ANSI codes
Read, understand and extract SLD for a LV (Low Voltage) Switchboard / Panel Board
Read, understand and extract SLD for a MV (Medium Voltage) Switchboard / Panel Board
Understand basics on CRP - Control and Relay Panel through SLD
Brief overview of typical solar power plant through a Sample SLD

Course content

3 sections • 26 lectures • 1h 58m total length

Introduction2:06
Welcome to this basic course on Single Line Diagram.
In this course we will learn about
how to read and understand and
extract information from a single line diagram.

By the end of this course, you will be able to easily interpret a single line diagram.
Let us have an overview of our course on Single Line Diagram. There are 3 sections in this course.
SECTION 1 - Different types of electrical diagram and an introduction to SLD.
Various Types of electrical diagrams &
What is single line diagram?
Where is it used?
Why is needed?
Who develops it etc.
SECTION 2 - Most frequently used symbols in SLD
Symbols and definition of components such as transformers, generators, ACB, Meters, Instrument transformers, Protective relays etc.
SECTION 3 - Interpretation of a typical SLD depicting HV, MV & LV
SLD template and its importance.
Importance of notes and legend sections in the SLD.
How one can go about interpreting of the drawing section in the SLD
By the end of the course, you would have built the skill to read and understand & extract information from a single line diagram.
So, Let’s begin our Learning!!
Types of Electrical Diagrams5:47
While learning electrical engineering, we come across various types of electrical diagrams and drawings.
They are used to represent the electrical or electronic systems and their functioning. Depending on the application and the information that they provide, We can see some of the important classifications such as
Block Diagram
Schematics
Wiring diagram
Logic Diagram
Riser Diagram
General Arrangement Drawing
Single Line Diagram
We will briefly learn about each of the drawings before moving towards a detailed study of SLD's.
Electrical Diagrams
Introduction to SLD5:56
Introduction to SLD's
We have seen some of the types of electrical diagrams and have touched upon their application in the industry.
Let us now study in detail about the Single Line diagram.
What is a SLD?
How is it represented?
Why is it important?
What information is depicted in the SLD?
Why is it needed?
When is it developed?
Who develops it?
Where does the SLD find its application in the Switchboard Industry?
Basics on SLD

Electrical Symbols in SLD3:48
In section 1, we learnt about -
Different types of electrical diagrams
Understood the basics of single line diagram
Roles of single line diagram in the electrical power systems

Now, SLDs use up a whole lot of symbols to represent the various switchgear. Thus, it is imperative to first know them.
In this section, we shall be focusing on the most frequently used symbols.
We will start with what symbols mean.
Then we will touch upon about the standards used while representing symbols - why they are used and needed?
Then we will briefly study about NEMA & IEC standards.
Main Components in SLD (Part -1); Transformers, DG4:51
Main Components in SLD (Part -1)
We will start with main components or most frequently used symbols in SLD's. We will be studying about their
Definition
Images & Symbols
Abbreviations
Example - To understand technical information mentioned
In this lecture we will be covering:
Transformer
DG - Diesel Generators
Symbols in SLD
Main Components in SLD (Part -2); Circuit breakers - ACB', VCB's & SF64:14
Main Components in SLD (Part -2)
We will start with main components or most frequently used symbols in SLD's. We will be studying about their
Definition
Images & Symbols
Abbreviations
Example - To understand technical information mentioned
In this lecture we will be covering:
ACB's - Air Circuit breakers
VCB's - Vacuum Circuit Breakers
SF6
Symbols in SLD - Circuit Breakers
Meaning of TPN2:04
In this lecture we will understand the meaning of TPN mentioned beside symbols in SLD's.
Understanding TPN Systems
Main Components in SLD (Part -2); MCCB, MCB5:10
Main Components in SLD (Part -3)
We will start with main components or most frequently used symbols in SLD's. We will be studying about their
Definition
Images & Symbols
Abbreviations
Example - To understand technical information mentioned
In this lecture we will be covering:
MCCB's - Molded Case Circuit Breaker
MCB's - Miniature Circuit Breaker
Instrument Transformers in SLD6:01
Instrument Transformers in SLD
We will start with main components or most frequently used symbols in SLD's. We will be studying about their
Definition
Images & Symbols
Abbreviations
Example - To understand technical information mentioned
In this lecture we will be covering:
CT's - Current Transformers
PT's - Potential Transformers
Symbols of Instrument Transformers in SLD
Meters in SLD2:40
Meters in SLD's.
We will start with main components or most frequently used symbols in SLD's. We will be studying about their
Definition
Images & Symbols
Abbreviations
Example - To understand technical information mentioned
In this lecture we will be covering:
Ammeter
Voltmeter
kWh Meter
PF meter
MFM Meter etc.
Meters in SLD
Protective devices in SLD3:34
Protective relays in SLD's
We will first cover what ANSI codes are ? Then we will start with main components or most frequently used symbols in SLD's. We will be studying about their
Definition
Images & Symbols
Abbreviations
Example - To understand technical information mentioned
ANSI code
In this lecture we will be covering:
Fuse
Thermal overload relay
Over & Under voltage relay
Distance Relay
Protective relays in SLD
Cont'd Protection devices in SLD3:15
Protective relays in SLD's
We will start with main components or most frequently used symbols in SLD's. We will be studying about their
Definition
Images & Symbols
Abbreviations
Example - To understand technical information mentioned
In this lecture we will be covering:
Reverse Power relay
Earth Leakage Relay
Restricted Earth Fault Relay
Lockout Relay
Lighting Arrester
Surge Protection Device
Protection devices in SLD
Cont'd Protection devices in SLD3:20
Protective relays in SLD's
We will start with main components or most frequently used symbols in SLD's. We will be studying about their
Definition
Images & Symbols
Abbreviations
Example - To understand technical information mentioned
In this lecture we will be covering:
Differential Protection relay
Generator Differential Relay
Directional Overcurrent Relay
Ground Protective Relay
Instantaneous Overcurrent Relay
Protective Relays in SLD

Overview of SLD4:17
Now that we have understood basics of SLD & and, are familiar with the most frequently encountered symbols in SLD, let us dive deep & study a couple of SLDs in detail, in this section.
We have a typical SLD for a Solar Power plant, depicting HV, MV & LV
We shall interpret it such that it lays down a practical guideline as to how to go about interpreting similar SLDs.
So lets begin our study for Typical substation SLD Solar Power Plant SLD

In this lecture you will get to learn about
Template of the SLD
Importance of Notes Section
Importance of Legend Section
SLD Interpretation
Interpretation of SLD (HV - Part 1)6:32
In the lecture we will be learning
Typical philosophy of a Solar power plant
How is the actual flow of power in our sample SLD
And we will start with the interpretation of HV (High Voltage) part of the SLD
Interpretation of SLD (HV - Part 2)6:36
In the lecture we will be continuing
With the interpretation of HV (High Voltage) part of the SLD
And will also learn about CRP panel or Control and relay panels
CRP
Interpretation of SLD (HV - Part -3)2:52
In the lecture we will continue with our learning
And we will complete the interpretation of HV (High Voltage) part of the SLD
Interpretation of SLD (MV Part 1)6:38
In the lecture we will be starting with interpretation of the 33kV MV switchboard SLD.
We will study the following types of feeders in this lecture:
Incomer
Bus-coupler
Interpretation of SLD (MV Part 2)4:52
In this lecture we will study about the other feeders connected to bus 1 & bus 2 and how is power to the ACDB's.
Interpretation of the SLD (MV Part 3 )4:23
In this lecture we will continue our study about the other feeders connected to bus 1 & bus 2 and how is power to the ACDB's.
Interpretation of the SLD (LV Part 1)2:16
In this lecture we will look into a LV SLD more specifically a SLD for a PMCC panel
Interpretation of the SLD (LV Part 2)5:34
In this lecture we will look into a LV SLD more specifically a SLD for a PMCC panel
Interpretation of the SLD (LV Part 3)6:16
In this lecture we will look into a LV SLD more specifically a SLD for a PMCC panel
Protective devices in SLD
Interpretation of the SLD (LV Part 4)7:41
In this lecture we will look into a LV SLD more specifically a SLD for a PMCC panel
LV SLD interpretation
Interpretation of the SLD (LV Part 5)5:23
In this lecture we will look into a LV SLD more specifically a SLD for a PMCC panel
Interpretation of the SLD (LV Part 6)2:25
In this lecture we will look into a LV SLD more specifically a SLD for a PMCC panel

Requirements

Should have a basic degree or knowledge in Electrical Engineering - B tech, B.E., Diploma or any similar relevant educational background

Description

Welcome to our 4th Course !!! "Single Line Diagram"

Students will get a brief idea of different types of electrical diagrams such as

Block Diagram
Schematics (To learn more on this refer our course - Electrical Schematics & Motor Circuits)
Wiring diagram
Logic Diagram
Riser Diagram
General Arrangement Drawing (To learn more on this refer our course - Basics on Switchboards & their GA drawings)
Single Line Diagram

In this course we will learn in detail about SLD's or Single line diagrams. We will learn how to read and understand and extract information from a single line diagram.

By the end of this course, you will be able to easily interpret a single line diagram.

Let us have an overview of our course on Single Line Diagram. There are 3 sections in this course.

SECTION 1 - Different types of electrical diagram and an introduction to SLD.

Various Types of electrical diagrams &
What is a SLD?
How is it represented?
Why is it important?
What information is depicted in the SLD?
Why is it needed?
When is it developed?
Who develops it?
Where does the SLD find its application in the Switchboard Industry?

SECTION 2 - Most frequently used symbols in SLD

Symbols and definition of components such as transformers, generators, ACB, Meters, Instrument transformers, Protective relays etc.

SECTION 3 - Interpretation of a typical SLD depicting HV, MV & LV

SLD template and its importance.
Importance of notes and legend sections in the SLD.
How one can go about interpreting of the drawing section in the SLD

Who this course is for:

Engineering, diploma and ITI students
Students and professionals who wish to work in power plant, renewable energy, switchboards, MEP industries
Interest in power systems analysis and Electrical Circuits
Sales Engineer or estimators in the Switchboard/ Electrical Panel board Industry
Design engineers in the Switchboard / Electrical Panel board Industry
Students with academic interest in power flow and distribution

Single Line Diagram

What you'll learn

Explore related topics

Course content

Introduction to SLD3 lectures • 14min

Electrical Symbols10 lectures • 39min

Interpretation of SLD13 lectures • 1hr 6min

Requirements

Description

Who this course is for: