HW2Sol

HW2Sol - EEL 3216 Introduction to Power Systems Homework 2...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
EEL 3216 Introduction to Power Systems Homework # 2 SOLUTIONS 1. A three phase wye-connected un balanced load is supplied by a balanced three-phase delta connected source. The source voltages and load impedances are: V ab = 13.2 kV ± 90° I an = 19.42 A ± -33.1° V bc = 13.2 kV ± 210° I bn = 16.34 A ± 189.3° V ca = 13.2 kV ± 330° a) Find the impedances Z an , Z bn , and Z cn . b) Calculate the active, reactive, and apparent power delivered by the source. c) Draw the phasor diagram of all voltages and currents I n = 0. ( there is no return path to complete the current loop ) q ± $ q ± $ ² q ³ ± $ ³ ² ³ ² ² 90 25 . 13 ) 3 . 189 34 . 16 1 . 33 42 . 19 ( ) ( c c b a c c b a n I I I I I I I I I q ³ ± : q ± : q ± : q ² q ± q ± q ± q ± q ² ± 90 73 . 573 7 . 50 3 . 466 1 . 153 4 . 392 1 . 33 120 42 . 19 62 . 7 0 62 . 7 240 62 . 7 120 62 . 7 30 3 cn bn an an an cn bn ab an Z Z A KV I V Z KV V KV V KV V V Power delivered: 2 2 2 * * * cn cn bn bn an an cn cn bn bn an an
Background image of page 1

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

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 02/01/2012 for the course EEL 3216 taught by Professor Brooks during the Spring '08 term at FSU.

Page1 / 4

HW2Sol - EEL 3216 Introduction to Power Systems Homework 2...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online