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Flashcards in Week 3 Deck (10)
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1

What is meant by peak load?

The time of day when the demand for electricity is highest, usually late afternoon or early evening.

2

Define cascading as it applies to the electrical system.

Cascading is when an outage on a circuit causes outages on interconnected circuits due to the inability to handle additional loads.

3

Provide two examples of “renewable” energy.

Hydro
Solar
Wind

4

How does “automation” contribute to a smarter grid?

It reduces the effect of outages because equipment can sense and automatically react to situations without human interaction.

5

What is meant by self-healing?

Uses automation to trigger key operations when disturbances on the system occur.

6

What is “Demand-Side Management”?

Methods of reducing consumption by the customers, especially helpful during peak loading.

7

How does pumped-hydro storage work?

Water is pumped to an upper reservoir during low demand, and allowed to flow through a turbine back to a lower reservoir during high demand.

8

Provide an example of smart grid concepts used on transmission systems.

Composite core conductors
Wide area management systems
Thermal monitoring (infrared cameras)
OPGW

9

What is a micro-grid?

When larger portions of the electrical system begin islanding, or operating independently from the traditional grid.

10

What makes a recloser smarter?

Electronically controlled
Bi-directional energy flow for self-healing
SCADA
Limits fault current
No oil, uses vacuum