{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

hw1_solutions

# hw1_solutions - Z Δ b Calculate the real and reactive...

This preview shows pages 1–12. Sign up to view the full content.

ECE 320: Energy Conversion and Power Electronics Name: Spring 2009 Homework #1 (Due: Monday, January 26, 2009) Circle or box your answer (don’t forget units). Staple any additional paper used to arrive at your answers to this sheet. 1. Fill in the blank spaces of the following table. Where the frequency is not included, assume 60(Hz). Phasor Sinusoidal Signal Polar Form Rectangular Form ( ) ( ) º 10 1000 sin 7 + = t t i (A) 20 ˆ = V / -113º (V) = 6 377 cos π t A v (kV) 3 10 ˆ j I = (kA) 30 ˆ = I / -2 π /3 (A) 2. For the circuit shown in Figure 1: a) Find the current, power factor, real power, reactive power, and apparent power at the source and at the load, Z L . b) Calculate and sketch, the Thevenin and Norton Equivalent circuits at the terminals A - B and looking to the left. 208 / (V) j 2 ( Ω ) 5 ( Ω ) j 30 ( Ω ) - j 5 ( Ω ) 50 ( Ω ) Z = 10- j 3 ( Ω ) A B L Figure 1. Circuit for problem 2.

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
3. For the three-phase (3 φ ) system shown in Figure 2, find: a) Line currents, and for the Δ connected load calculate the current through one leg of the delta,

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.