Introduction to HV Engineering and Electrostatic Field

These flashcards cover key concepts from the Introduction to High Voltage Engineering and Electrostatic Field lecture notes, helping students review important information for their exam.

What are the main components of Power Engineering?

Power Engineering encompasses the generation, transmission, distribution, and utilization of electrical energy.

What is considered high voltage (HV)?

High voltage usually refers to electrical energy at voltages high enough to inflict harm on living organisms.

What voltage range is classified as Extra Low Voltage (ELV) in Australia?

≤ 50 V AC or ≤ 120 V ripple-free DC.

What is the primary transmission voltage range in Australia?

The primary transmission voltages include 110kV, 132kV, 220kV, 400kV, 500kV, and 765kV, 1200kV.

What are the main benefits of HVDC transmission?

D.C. cables are less expensive, can be laid with greater lengths, and require fewer substations for voltage regulation.

What is a simple definition of impulse voltages?

An impulse voltage is an unidirectional voltage that rises rapidly to a maximum value and falls to zero.

What principle does Coulomb's law describe?

Like charged bodies repel, unlike charged bodies attract, and the force is proportional to the magnitude of the charges and inversely proportional to the square of the distance between them.

What does electric field intensity (E) measure?

Electric field intensity represents the force exerted per unit positive test charge.

How is capacitance of coaxial cable calculated?

Capacitance C = 2πλε₀εᵣ ln(r₂/r₁), where r₂ is the outer radius and r₁ is the inner radius.

What does Gauss's Law state?

The surface integral of electric flux density (D) over a closed surface equals the total charge enclosed by that surface.