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RANGKAIAN LISTRIK 2
SELASA, 08.30 – 10.00 WITA
Prof. Ir. I.A.DWI GIRIANTARI, MEngSc.,PhD.
 SINUSOIDAL STEADY STATE
 SINGLE &THREE PHASE CIRCUIT
 STAR-DELTA CONNECTION
 FREKWENSI COMPLEX
 LAPLACE TRANSFER FUNCTION
 TRANSFORMER
 TWO PORT NETWORK
KONTRAK KULIAH
 MIDDLE TEST/UTS
 ASSIGMENT/TUGAS
 PARTICIPATIONS
 FINAL EXAM/UAS

TOTAL
= 35%
= 15%
= 10%
= 40%
= 100%
INTRODUCTORY ALTERNATING CURRENT
PEMBANGKITAN TEGANGAN AC
TWO EXPRESSION
vector representation
Vm = MAKSIMUM VOLTAGE
Vrms= V = Vm/√2
1
V y 
T
2
T
2


y
(
t
)
dt

0
y(t) is a periodic function of time t, with period T
AN IDEAL RESISTOR IN AC CIRCUIT
E= Ri
i = E/R = (Vm/R) sin ωt = Imsin ωt
atau
I = E/R
POWER IN RESISTOR
The instantaneous power dissipated
P  v.i
P  (Vm sin t )( I m sin t )
Vm I m R( I m) 2
Pav 

2
2
Vm I m Vm I m
P

cos 2t
2
2
1
Pav 
(Vm sin t )( I m sin t )dt
T
T

0
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v  Vm cost   v   i 
i  I m cos t
8
9
P is called the average power
Q is called the reactive power
10
POWER FOR PURELY INDUCTIVE CIRCUITS
11
POWER FOR PURELY CAPACITIVE CIRCUITS
12
THE POWER FACTOR
13
End of this lecture
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