EEE Dept Engineering Topics List

Subject and UNIT: Transmission and Distribution: Unit I: Transmission Line Parameters

These tables are also useful for calculating inductive reactance as well as shunt capacitive reactance and resistance.

Subject and UNIT: Transmission and Distribution: Unit I: Transmission Line Parameters

These tables are also useful for calculating inductive reactance as well as shunt capacitive reactance and resistance.

Subject and UNIT: Transmission and Distribution: Unit I: Transmission Line Parameters

For simplicity let us assume that all the strands are identical and share the current equally.

Subject and UNIT: Transmission and Distribution: Unit I: Transmission Line Parameters

Now we will consider a single phase 2 wire system. It consists of two conductors say P and Q which are composite conductors.

Transmission Line Parameters

Subject and UNIT: Transmission and Distribution: Unit I: Transmission Line Parameters

One conductor is forming a return circuit for the other. The two conductors are carrying currents I1 and I2 respectively.

Internal - External Flux

Subject and UNIT: Transmission and Distribution: Unit I: Transmission Line Parameters

Inductance of a conductor exists due to the flux distribution inside the conductor as well as the the flux distribution outside the conductor. Let us calculate inductance of a conductor due to internal as well as external flux.

Subject and UNIT: Transmission and Distribution: Unit I: Transmission Line Parameters

The resistance of a transmission line is an important parameter as it is the main cause of power loss in a transmission line. It is defined as the opposition offered by the transmission line conductors to the flow of current.

Subject and UNIT: Transmission and Distribution: Unit I: Transmission Line Parameters

An alternating flux is produced by the alternating current when flowing through a conductor.

Subject and UNIT: Transmission and Distribution: Unit I: Transmission Line Parameters

When any two conductors are separated by an insulating material it will form a capacitor.

Subject and UNIT: Transmission and Distribution: Unit I: Transmission Line Parameters

There are various methods of arranging the conductors over the line supports,

Subject and UNIT: Transmission and Distribution: Unit I: Transmission Line Parameters

The electrical power generated in the generating station is transmitted with the help of transmission line which are normally overhead.

Subject and UNIT: Transmission and Distribution: Unit I: Transmission Line Parameters

Transmission lines are the circuits with the distributed constants such as resistance, inductance, conductance and capacitance distributed along the length of transmission line.