High Tension Towers and Transposition of Conductors

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What is the primary purpose of transposition in transmission lines?

To increase the capacitance between conductors
To rotate the conductors for aesthetic reasons
To increase system power loss
To reduce voltage drops and stabilize voltage unbalance (correct)

When is transposition of three-phase transmission lines typically necessary?

When the line is less than 50 km long
When the line is exactly 100 km long
When the line is more than 100 km long (correct)
When the line is less than 20 km long

What does the transposition arrangement aim to reduce between power conductors?

Inductive coupling (correct)
Resistance
Capacitance
Voltage fluctuations

In a transposition arrangement, what happens to each phase conductor?

They occupy each of the three phase positions in a circuit (D) Signup and view all the answers

How does transposition benefit the stability of voltage levels in a transmission line?

It decreases inductive coupling, reducing voltage unbalance (D) Signup and view all the answers

What is the effect of transposition on the characteristics of a transmission line near high-tension towers?

It has no significant effect on the line characteristics (A) Signup and view all the answers

What aspect does the proposed method of transposition aim to simplify?

Engineering activity (D) Signup and view all the answers

How does the transposition arrangement benefit from using a special tower for lines longer than 100 km?

By reducing electrical line losses (D) Signup and view all the answers

What is the primary reason for adopting the proposed method of transposition?

To reduce the effect of inductive coupling (C) Signup and view all the answers

How does the transposition arrangement contribute to reducing the effect of inductive coupling?

By rotating the conductors to different positions (A) Signup and view all the answers

What is the Transient Recovery Voltage (TRV) in the power grid associated with?

Increase in voltage during circuit breaker operation (B) Signup and view all the answers

What can happen when the rate of rise of recovery voltage (RRRV) overwhelms the insulating medium?

The insulating medium can be damaged (A) Signup and view all the answers

What is a characteristic of the transposition arrangement near high tension towers?

Reduced ground clearance (D) Signup and view all the answers

What is the main theory behind the transposition of conductors?

To reduce the effect of capacitance (C) Signup and view all the answers

How does transposition help in reducing power loss in the system?

By reducing the effect of capacitance (B) Signup and view all the answers

What is an advantage of the proposed transposition method mentioned?

Reduced tower design and approval (A) Signup and view all the answers

When is transposition typically carried out in transmission lines?

For lines longer than 200 km (C) Signup and view all the answers

What is the primary goal of adopting different approaches to transposition arrangement?

To enhance voltage stability (A) Signup and view all the answers