RANGKAIAN LISTRIK 2RANGKAIAN LISTRIK 2

SINUSOIDAL STEADY STATE SINGLE &THREE PHASE CIRCUIT STAR-DELTA CONNECTION FREKWENSI COMPLEX LAPLACE TRANSFER FUNCTION TRANSFORMER TWO PORT NETWORK

Ir. I.A.DWI GIRIANTARI,MEngSc.,PhD.

SELASA, DH 102, 10.10-12.40 WITA

KONTRAK KULIAH

MIDDLE TEST/UTS = 35% ASSIGMENT/TUGAS = 15% PARTICIPATIONS = 10% FINAL EXAM/UAS = 40% TOTAL = 100%

INTRODUCTORY ALTERNATING CURRENTINTRODUCTORY ALTERNATING CURRENT

PEMBANGKITAN TEGANGAN AC

TWO EXPRESSION

Vm = MAKSIMUM VOLTAGEVrms= V = Vm/√2

vector representation

T

dttyT

yV0

22 )(1

y(t) is a periodic function of time t, with period T

AN IDEAL RESISTOR IN AC CIRCUIT

E= Rii = E/R = (Vm/R) sin ωt = Imsin ωt atau I = E/R

POWER IN RESISTOR

The instantaneous power dissipated

tIVIV

P

tItVP

ivP

mmmm

mm

2cos22

)sin)(sin(

.

T

mmav

mmmav

dttItVT

P

IRIVP

0

2

)sin)(sin(1

2

)(

2

8

9

tIi

tVv

m

ivm

cos

cos

10

11

P is called the average powerQ is called the reactive power

12

POWER FOR PURELY INDUCTIVE CIRCUITS

13

POWER FOR PURELY CAPACITIVE CIRCUITS

14

THE POWER FACTOR

above

15

16

We now calculate P and Q directly

17

THE RMS VALUE AND POWER CALCULATIONS

18

EXAMPLE

The average power delivered to

SOLUTION

19

20

21

EXAMPLE

22

a). Calculate the complex power of the load.b). Calculate the impedance of the load.

and

23

24

25

26