What are the factors considered when we talking about HVAC and HVDC transmission?

Transmission economics, system reliability and technical performance

One of the economic advantages of HVDC over HVAC is:

Lower costs in DC cables due ti reduced skin effects and dielectric losses

What is the main purpose of both HVDC and HVAC transmission system?

Transmitting power over long distances with minimal losses

In an HVDC system, which component is used to convert AC to DC and viceversa?

AC/DC Converter Station, Filter

What is one reason HVAC systems lose efficiency over long distances?

HVAC is affected by high inductive effects, which limit power transfer

Which of these sentences are correct?

In HVAC, the corona loss is more

Why does HVDC transmission have an advantage over HVAC in terms of stability?

HVDC systems do not need reactive power for transmission

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HVAC and HVDC

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Questions about HVAC-HVDC, economics of AC and DC, technical performance…

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Answers

1
What are the factors considered when we talking about HVAC and HVDC transmission?
Transmission economics, system reliability and power rating
Reactive power, system reliability and technical performance
Transmission economics, system reliability and technical performance
Transmission economics, system reliability and dielectric losses
2
One of the economic advantages of HVDC over HVAC is:
Higher power losses in transmission lines
Increased need for terminal equipment
Lower costs in DC cables due ti reduced skin effects and dielectric losses
Greater need for compensation components
3
What is the main purpose of both HVDC and HVAC transmission system?
Transmitting power over long distances with maximum power
Transmitting power over short distances with minimal interference
Transmitting power over short distances with low cost
Transmitting power over long distances with minimal losses
4
What is the voltage range for which the transmission system is considered HVAC?
33kV - 230kV
50kV - 230kV
100kV - 800kV
10kV - 100kV
5
Where the tower size are taller?
It depends on the case
In HVDC system
In HVAC system
In both they are the same height
6
In an HVDC system, which component is used to convert AC to DC and viceversa?
AC/DC Converter Station
Filter
Static Reactive Power Source
AC Line
7
How many conductors are required for the HVDC transmission system?
Two
One
Three
Three + neutral
8
What is one reason HVAC systems lose efficiency over long distances?
HVAC is affected by high inductive effects, which limit power transfer
HVAC requires a return conductor in all cases
HVAC transmission lines are immune to surge impedance loading
HVAC cannot handle polarity changes
9
Which of these sentences are correct?
None of these
HVAC requires a conductor with smaller diameter
HVAC require rectifiers and inverters
In HVAC, the corona loss is more
10
Why does HVDC transmission have an advantage over HVAC in terms of stability?
HVDC systems have higher impedance loading
HVDC systems can transmit more power at lower voltages
HVDC systems require less maintenance
HVDC systems do not need reactive power for transmission

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