2 DC Power Transmission Technology

What are some advantages of DC transmission over AC transmission?

• No energy losses, no conductors needed, not suitable for long-distance transmission

• Equal energy losses, same number of conductors needed, equally efficient for long-distance transmission

• Higher energy losses, more conductors needed, less efficient for long-distance transmission

• Lower energy losses, fewer conductors needed, more efficient for long-distance transmission

How does the efficiency of AC transmission compare to DC transmission?

• AC and DC transmission have the same efficiency.

• AC transmission is more efficient than DC transmission.

• Efficiency of AC and DC transmission depends on the distance of transmission.

• DC transmission is more efficient than AC transmission.

When considering cost, what are some important factors to consider for DC transmission?

• Number of substations

• Initial installation costs, maintenance costs, losses in the transmission line, cost of converter stations

• Color of the transmission line

• Type of insulators used

What is the environmental impact of DC transmission compared to AC transmission?

• DC transmission has higher environmental impact due to increased energy losses

• DC transmission has lower environmental impact due to lower energy losses and reduced need for additional power generation.

• DC transmission has no impact on the environment

• DC transmission requires more power generation compared to AC transmission

Can you provide examples of applications where DC power technology is commonly used?

• Battery-powered devices, solar panels, electric vehicles, industrial machinery

• Wind turbines, Hydroelectric power plants, Nuclear power plants

In terms of efficiency, why is DC transmission preferred for long-distance power transmission?

• Lower energy losses over long distances

• Increased maintenance costs

• Less reliable transmission

• Higher energy losses over long distances

How do the losses in AC transmission lines compare to DC transmission lines?

• DC transmission lines have higher losses than AC transmission lines.

• DC transmission lines have lower losses than AC transmission lines.

• AC transmission lines and DC transmission lines have equal losses.

• AC transmission lines have higher losses than DC transmission lines.

What role does power electronics play in enabling DC power transmission technology?

• Power electronics are not involved in DC power transmission technology

• Power electronics enable the conversion, control, and conditioning of DC power for efficient transmission.

• Power electronics only work with AC power, not DC power

• Power electronics cause inefficiencies in DC power transmission