1.5 KiB
Transformers
We will always assume an iron core. It will be stated if you don’t have one. Two lines between inductors indicates transformer
Riser diagrams go from bottom to top. This shows the physical locations of the circuitry. Traditional diagrams only show power, and are generally left to right, or vice versa
I_p={I_S\over a}\
V_p=V_sa
Given these two, your remembered calculations will find the power and the perceived impedance on either side
You can find your source impedance for something you own. But for utilities, they give you the widthstand current or available short circuit current. Given that and the voltage, you can find the impedance.
RIT recently announced the construction of a new building on campus. A 120V,\ 60Hz generator located 100 miles from campus will supply power to the building. The internal resistance of the generator is 0.01\Omega.
The proposed Transmission line has the resistance of 0.25\Omega \ per\ 1000ft. The steady state load of the building is 1.0\Omega.
- Draw a circuit based on this representation of the project.
- calculate the resistance of the transmission line
R_{trans} - Calculate the voltage at the building
V_B - Calculate the power delivered to the building
P_B
The load of the transmission lines comes out to 132k\Omega
This transmission load is difficult to deal with without a transformer. So, lets add one. Actually, no. Lets add 2.