Summary Theory for EPS

Electrical Power Systems Theory

, Week 1

Charge
•
Fundamental parties are
compound of positive ( protons) and negatie (elections)
electric
charges

The Coulombs ( C )
elementary charge is measured in
•




-19 (
e =
1, 6 .
10




Electric
charge ( )
g
•
:



q =
me → n =
positive n
negatie
Current

Electric current ( i ) is the amount
of charges mening / unit of tinne
•



•
Measured in
Ampères (A) → 1A = 1 %
•
For a constant current : i =
¥ >
q = i. t

t

•
For a tinne -


verging current : I = dat '
g = fiat
to



Positive direction ( current flow from high potential
s to Low potential)

•
Active element ( Power)
Supplies
Passiva element
drop)
•
( Consumer Power voltage
-




Voltage
potential Lenergy ) forces elections to moe

• Measured in volts IV)
• IV =
1 %