Connect with us

Hi, what are you looking for?

# Single Line Diagram of a Transmission Distribution in a Power System

## What is a Single Line Diagram?

A Single Line Diagram or a One Line Diagram is a simple way to draw the Electrical Circuit in a Power System. By adopting this Electrical Line Diagram the Complexity of the Pictorial Representation can be reduced.

A typical Electrical Single Line Diagram Consist of a

• Generator (Generating Station)
• Step Up Transformer
• Step Down Transformer
• Sub-Station
• Feeder
• Distributors

## Primary Transmission:

• The Power Generated from the Generating Station is step Up using the Step-Up Transformer and then the Primary Transmission Takes Place.
• Step-Up Transformer is used to Minimise the Transmission Loss.
• 11Kv is Step Up to 220Kv before sending to Primary Transmission.
• In other Words, Primary Transmission is also called High Voltage Transmission since it deals with very high Voltage.
• Primary Transmission uses 3 phase 3 Wire System (Over Head Transmission Lines)

## Secondary Transmission:

• At the Receiving Station, the voltage level is step-down from 220Kv to 33KV using Step-Down Transformer.
• Second Transmission System uses 3 phase system to Transmit Power to the various Sub-stations.

## Primary Distribution:

• In the Primary Distribution, a step-Down transformer (Usually called as Distribution Transformer) is used to reduce the Voltage to the desired Level.
• The Voltage is Step down from 33KV or 22Kv to 6.6Kv or 3.3Kv.
• Large Factories and Industries get power from Primary Distribution. Companies using Primary Distribution have their own Sub-station.
• It is also called High-Voltage Distribution.

## Secondary Distribution:

• In Secondary Distribution, a Step-down transformer is again used to reduce the voltage level from 3.3 Kv to 440V or 230v.
• The End consumers get power through Secondary Distribution.
• 230V is used for Domestic Purposes.
• It is also called Low Voltage Distribution.
• The Secondary Distribution uses 3 phases and 4 wire system (Neutral Wire)

### Digital Logic Circuits

Excess-3 to BCD converter In this post on code conversions, we are going to see Excess-3 to BCD converter using k map technique.  K-map If you...

### Basics

The Scientific Calculator is an advanced version of an ordinary calculator which helps us to solve complex arithmetic problems. The Normal Calculator consists of...

### Digital Logic Circuits

BCD to Excess-3 converter In this post on a code converter, we are going to see BCD to Excess-3 converter using the k-mapping technique....

#### Latest

Summary: Recycle bin remains our last hope after you have accidentally deleted some of YouTube sensitive data. But is there easy to recover data...

Exchanging forex (monetary standards) in Australia is well known among owners and global dealers looking for an Australian-based agent. Before any fixed dealer in...

[pii_email_3a19ac5cc937023e1594] Error 100% Fixed: Easy Tips If you’re a Microsoft Outlook user, what if suddenly some error occurs and you become unable to access...

### Life Style

We have achieved a lot of things thanks to ongoing scientific development. Cars have come a long way since their creation and innovative models...

### Home Improvement

Ever dreamed of making your house a cozier place to live in? Now you can make it a reality because Crawoo.com offers their best...

### Gaming

There would be several websites out there offering casino games for casino lovers throughout the world. However, only a few of them are offering...