Publish at October 30 2024 Updated October 30 2024
The electrical network is quite fascinating. The general public often knows almost nothing about it, yet it's essential for the operation of our machines, lighting, etc. It's not uncommon to see large, seemingly inactive electrical structures in the background as you drive along. Nevertheless, they are essential for the transmission of electricity.
As this Hydro-Québec information capsule shows, these are electrical substations. The province has many of these on its territory, and the same is true elsewhere. These places are there to raise or lower the voltage of the electricity. The latter, calculated in volts, must arrive in residential neighborhoods at the right voltage. Initially, on lines running from power stations, the current is 750,000 volts. This may have to be reduced to 120 for domestic use. Hence the importance of substations, which use various structures, including transformers, to modify the voltage.
Most of these structures are controlled remotely, which is why workers are rarely seen. Workers are only present for maintenance or repairs, and they need to be protected from the risk of electrification or electrocution.
Running time: 4min41
Learn more about this resource
You might also like:
Develop your musical ear through play with Meludia
To a layman, music is just a tune performed by a musician. Yet, if he were to play Meludia, he would learn all the rudiments and terms associated with musical practice.
A series of games that require an ear.
Elude: a serious game for understanding depression
An original approach to depression. The game's metaphor is well conceived, a little dark and informative about a problem that affects millions of people.
A virtual aquarium to understand Darwinian evolution
Is it possible to understand evolution through simulation? It would seem so. A very interesting resource for high school science classes.
A multiplayer game designed for people with disabilities
Video games designed for people with disabilities are already a rare resource. An experience that allows multiple players is even rarer. Yet this latest creation from "Ludociels for All" challenges players to light up an entire maze by walking balls of light.
Tests of vigilance and attention
Measuring attention remains a concern in many settings. Some work tasks are not very error tolerant. Here are a series of sample tests to measure attention in children and adults.
