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Induction Motor Interview Questions with Answers | Part-1

Basics concept of Interconnected Power System

Basics concept of Interconnected Power System


The main requirement of any power system is to give an uninterrupted power supply.


Power system
Basic Concept of Interconnected Power System


In some parts of the country there are resources of generating power but their requirements is low where as in other parts power requirement is large as compared to available resource of power.

These above difficulties can be reduced by interconnecting different power stations in parallel.

The connection of numbers of power generating stations in parallel is known as Interconnected Power System.

Inter connected power system is basically an interconnection of the buses of more than one generating station.

So as to utilize the unused generated power capacity of connected generators during peak demand.

It is also be simply defined as 'A distribution system with multiple available power sources that can loop throughout the network.' 

If one source goes down, a different source can be activated to maintain service.


Power system
Fig.1  Diagram of Interconnected power system


Fig.1 shows the Inter connected Power system having two Power Generating Station G1 and G2, supplying current I1 and I2 to the load through transmission line 1 and 2 in addition to their local load.

The Power Generating Stations are also interconnected by Transmission line, which is carrying the current I.

The transfer of power is taking place as shown by direction of arrows.

In order that both transmission line 1 and 2 deliver equal power and the system operates at the same terminal voltage. 

It is necessary that the active components of the line currents I1 and I2 are equal.

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