Example 2-3. A simple power system is shown in Figure 2–22. This system con- tains a 480-V generator connected to an ideal 1:10 step-up transformer, a transmission line, an ideal 20:1 step-down transformer, and a load. The impedance of the transmission line is 20 + j60 N, and the impedance of the load is 10230°N. The base values for this system are chosen to be 480 V and 10 kVA at the generator. (a) Find the base voltage, current, impedance, and apparent power at every point in the power system. (b) Convert this system to its per-unit equivalent circuit. (c) Find the power supplied to the load in this system. (d) Find the power lost in the transmission line. Line 20Ω Iload Zioad = 10 30°N j60 N 1:10 20:1 Zine 480 0° V Region I Region 2 Region 3

Q: Design a lo power transformer to be used in a wind turbine for the following specifica tions: 1-…

A: To need to design a power transformer that is to be used in a wind turbine for the following…

Q: A 50 Hz, Scott connected transformer supplies an unbalanced two phase load at ( 400 V) per phase.…

A:

Q: A long line with A = D = 0.9 1.5° and B = 150 65° has at the load end a transformer having series…

A:

Q: A transformer shown in Figure 10 is needed that will cause an actual load resistance of 250 to…

A: (a) Redraw the given circuit diagram.

Q: A 220V(rms), 50HZ sinusoidal source is connected to the primary side of an ideal transformer with…

A: In this question,  220V rms voltage source is applied to ideal transformer through the line.  Find…

Q: Consider the circuit in the figure below: a) What are the benefites of using the transformer in this…

A: Cut in voltage of silicon diode is 0.7V and cut in voltage of germanium diode is 0.3V. During…

Q: If you have 3-phase power and you need to step down (or up) in 3-phase voltage, how many…

A: The objective of the question is to determine the number of single-phase transformers required to…

Q: Determine the ratio of the kW output of transformer A to the kW output of transformer B. Both…

A:

Q: find the voltage on primary side in pu.

A: Given that, Primary Voltage (V1)=2000 V, Secondary Voltage (V2)=200 V, Primary Impedance (Z1)=0.12+…

Q: The resistance and reactance of the primary winding of a 440/110 V single phase transformer are 4.4…

A:

Q: ! Required information A centre-tapped transformer has the schematic representation shown in the…

A: The transformer,

Q: For the transformer below determine the magnitude for the induced secondary voltage if: Ep = 1kV Np…

A:

Q: onsider a three winding transformer with the following particulars: = 50-40° A. Assume that V₂ is 1=…

A: Solution- THREE WINDING TRANSFORMER       Given, Z1=Z2=Z3 = 0.02+j0.08 ohmV2 = 400 VI2 = 60∠-30° AI3…

Q: Two transformers A and B of different ratings but equal voltage ratios share a load of 900 kVA at…

A: Load  SL = 900 KVA   0.8 pf lagging transformer  A  rating is  600 KVA transformer  B  rating is…

Maximum power transfer theorem

A resistive load will consume maximum power from a network when the load resistance is equal to the resistance of the network as viewed from the open-circuit terminals, with all energy sources removed leaving only the internal resistances. Physicist Moritz von Jacobi introduced the maximum power transfer theorem in 1940. Therefore, this theorem is also known as Jacobi's law.