Questions about power grid in US

In summary, the voltage in overhead power lines in residential areas is typically 7,200V before being stepped down to 120V for household use. The primary inductance of a distribution transformer used for stepping down is generally large.
  • #1
cuallito
95
1
1) What's the voltage in the overhead power lines in residential areas? Basically how many volts is it before it gets stepped down to 120 for your house?

2) What's the typical primary inductance of a distribution transformer that does the stepping down?
 
Engineering news on Phys.org
  • #2
cuallito said:
1) What's the voltage in the overhead power lines in residential areas? Basically how many volts is it before it gets stepped down to 120 for your house?

2) What's the typical primary inductance of a distribution transformer that does the stepping down?

This should help with your first question:

http://www.howstuffworks.com/environmental/energy/power.htm

.
 
  • #3

1. What is the power grid in the US?

The power grid in the US is a complex network of power plants, transmission lines, and distribution systems that work together to deliver electricity to homes, businesses, and other facilities across the country.

2. How does the power grid in the US work?

The power grid in the US works by generating electricity at power plants, which is then sent through high-voltage transmission lines to substations. From there, the electricity is distributed through lower-voltage lines to homes and businesses.

3. Who manages the power grid in the US?

The power grid in the US is managed by a combination of different entities, including independent system operators (ISOs) and regional transmission organizations (RTOs). These organizations work together to ensure the reliability and efficiency of the power grid.

4. How is the power grid in the US regulated?

The power grid in the US is regulated by the Federal Energy Regulatory Commission (FERC) and the North American Electric Reliability Corporation (NERC). These organizations set standards and regulations for the operation of the power grid to ensure its reliability and security.

5. What are the biggest challenges facing the power grid in the US?

Some of the biggest challenges facing the power grid in the US include aging infrastructure, increasing demand for electricity, and the integration of renewable energy sources. Additionally, the power grid is vulnerable to cyber attacks and natural disasters, making its security and resilience a top concern.

Similar threads

Replies
6
Views
2K
Replies
2
Views
711
  • Electrical Engineering
Replies
4
Views
1K
  • Electrical Engineering
Replies
8
Views
1K
  • Electrical Engineering
2
Replies
46
Views
4K
  • Electrical Engineering
Replies
8
Views
938
Replies
13
Views
4K
Replies
8
Views
819
  • Electrical Engineering
Replies
6
Views
2K
  • General Engineering
Replies
6
Views
2K
Back
Top