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Electrical lvl3 > Electrical transmission and generation > Flashcards

Electrical transmission and generation Flashcards

1
Q

What is Electrical Generation

A

the process of converting forms of energy into electrical energy

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2
Q

What is Electrical transmission

A

The process of transporting electrical power from generated sourse, to end users by network of transmission lines and substations

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3
Q

Types of electrical power generation

A
  • Thermal Power Generation
  • Renewable Energy Sources
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4
Q

What are Thermal Power generation

A

A method that either uses the heat to either burn (fossil fuel) or steam (water), to operate turbines that’s linked to a generator

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5
Q

The up and down sides of Thermal power generation

A
  • The up-side is that it’s reliable and well-established with high output.
  • The down-side is that it emits high CO2 into the atmosphere, and releases radioactive wastes into the environment.
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6
Q

What is Renewable Energy Sources

A
  • A source that produces energy that can used over and over again without running out of, like solar energy from the sun or wind turbines from the sun.
  • This method doesn’t affect the environment in a bad way.
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7
Q

What are the key components of power generation systems

A
  • Turbines
  • Generators
  • Transformers
  • Fuel supply systems
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8
Q

What are the use of turbines

A

Converst machanical energy into rotational energy

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9
Q

What is the use of Generators

A

converst rotational energy into electrical energy using electromagnetic induction

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10
Q

What is the use of transformer

A

Steps up voltage for efficient transmission over long distances

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11
Q

What’s the use of fuel supply systems

A

Provides rew materials like coal or natural gases, to fuel power plants

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12
Q

Whats the use of transmission of electrical power

A

Involves moving elecgtricity from power plants to cinsumers through high-voltage power lines, substation and transformers

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13
Q

What are the use of transmission lines

A

Transmit electricity at high voltage to minimize enrgy loss

Also uses AC for long distance transmission, and DC for specific situations for certin long-distance transmission.

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14
Q

What’s the use of Substations and Transformers

A
  • Uses step-up transformers to increase voltage fo electricalcurrent for long distance
  • Uses step-down transformers to reduce voltage to a safe level of distribution to homes and businesses
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15
Q

What’s the use of Trnsmission network Structure

A
  • A Grid, to interconnect power lines ensuring electricity can be transfered from one part of the system to another
  • A National Grid, for large-scale transmission system covering the whole country
  • A Reginal Grid, for local networks connected to smaller regions
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16
Q

What’s the use of Electrical Distrabution

A

Once electricity reaches local distribution:
- Distribution Lines, deliver lower-voltage electricity to homes and businesses
- Distribution transformer, steps down voltage to housholds or buessines level
- Consumers, power being sent to residential, industriual and commercial users to consume

17
Q

What’s Efficiency and Lossesin Transmission

A
  • The Power Loss of electriacl energy occuring due to resistance of transmission lines. Loss increases with distance and current.
  • High-Voltage transmission is stepped up using transformers for long-distance transmission. High voltage reduces current, reducing resistive loss
18
Q

What’s the formula for Power

A

P = I^2 x R

19
Q

What’s used for Grid Stability and management

A
  • Frequency Regulation
  • Load Balancing
  • Grid storage
20
Q

What’s Frequency Regulations

A

maintaining the power grid to a constant frequency (50Hz/60Hz), ensuring stable operation of electrical equipment

21
Q

What is Load Balancing

A

Matches electricity supply demand in real-time, adjusting power station outputs according to flucations in consumption

22
Q

What’s Grid Storage

A

Technology like pumped hydro storage, batteries and compressed air can store energy during periods of low damand and release it when demansd peaks

23
Q

What’s Smart grid and Modern Development

A

Technology, using digital commmunication technology to improve grid managment, monitor electricity use, and intergate renewable energy sources more efficiently.

The advantages are, increases reliability, efficiency and intergaration of renewable energy

24
Q

What’s the use of Smart grid and Modern Development

A

Using Distribution Generation, small- scale generation like solar panals and wind turbines, are located closer to the consumer, reducing transmission losses ad improves resilience.

25
Q

What are the Challenges in Power Generation and Transmission

A
  • Environmental Impact
  • Energy Storage
  • Infustructure Aging
  • Grid Congestion
  • Cybersecurity
26
Q

What’s environmental Impact

A

Emissions from fossils feuls, habitat disruption from large power plant or dams.

27
Q

What’s Energy Sources

A

Efficiant stroage of renewable sources like wind or solar

28
Q

What’s Infrastructure Ageing

A

Updating outdated transmissions systems for better efficiency and capacity

29
Q

What’s Grid Congestion

A

When exceeding demad capacity of transmission network, leading to blackouts or brownouts

30
Q

What’s cybersecurity

A

Protecting the grib from cyberattacks is a growing concern as grids become more interconnceted and reliant on digital systems

31
Q

What’s the use of Electrical Transmission and generation

A
  • They are a fundemantal to moder society, ensuring that power is reliable and efficiently provinding to consumers
  • To intergrate renewable energy sources and smart grid technology to improve efficiency, reducing environmental impact, and managing growth demand
32
Q

What is Substations

A

A facility that steps up/down voltage levles and routes power

33
Q

Transmission line losses

A

Energy losses that occer as electrical power is transmitted over long distance

34
Q

What’s power factor

A

The ratio of real power to appatent power in a circuit

Electrical lvl3 (5 decks)

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