CATATAN KONVERSI DAYA LISTRIK
Sumber: http://www.rapidtables.com/electric/Current.htm
How to convert
kVA to amps
You can calculate amps from
kilovolt-amps and volts,
but you can't convert kilovolt-amps to amps since kilovolt-amps and amps
units do not measure the same quantity.
Single phase kVA to amps calculation
formula
The current I in amps is equal to
1000 times the apparent power S in kilovolt-amps, divided by the voltage V in
volts:
I(A) = 1000 × S(kVA)
/ V(V)
So amps are equal to 1000 times
kilovolt-amps divided by volts.
amps = 1000 × kVA / volts
or
A
= 1000 · kVA / V
Example
Question: What is the current in
amps when the apparent power is 3 kVA and the voltage supply is 110 volts?
Solution:
I
= 1000 × 3kVA / 110V = 27.27A
3 phase kVA to amps calculation formula
The current I in amps is equal to
1000 times the apparent power S in kilovolt-amps, divided by the square root of
3 times the line to line voltage V in volts:
I(A) = 1000 × S(kVA)
/ (√3 × V(V) )
So amps are equal to 1000 times
kilovolt-amps divided by the square root of 3 times volts.
amps = 1000 × kVA / (√3 ×
volts)
or
A
= 1000 · kVA / (√3 × V)
Example
Question: What is the current in
amps when the apparent power is 3 kVA and the voltage supply is 110 volts?
Solution:
I
= 1000 × 3kVA / (√3 × 110V) = 15.746A
How to convert
amps to kVA
You can calculate kilovolt-amps from
amps and volts,
but you can't convert amps to kilovolt-amps since kilovolt-amps and amps units
do not measure the same quantity.
Single phase amps to kVA calculation
formula
The apparent power S in
kilovolt-amps is equal to current I in amps, times the voltage V in volts,
divided by 1000:
S(kVA) = I(A)
× V(V) / 1000
So kilovolt-amps are equal to amps
times volts divided by 1000.
kilovolt-amps = amps × volts / 1000
or
kVA
= A · V / 1000
Example
What is the apparent power in kVA
when the current is 12A and the voltage supply is 110V?
Solution:
S
= 12A × 110V / 1000 = 1.32kVA
3 phase amps to kVA calculation formula
The apparent power S in
kilovolt-amps is equal to current I in amps, times the line to line voltage V
in volts, divided by 1000:
S(kVA) = √3
× I(A) × V(V) / 1000
So kilovolt-amps are equal to amps
times volts divided by 1000.
kilovolt-amps = √3 × amps ×
volts / 1000
or
kVA
= √3 × A · V / 1000
Example
What is the apparent power in kVA
when the current is 12A and the voltage supply is 110V?
Solution:
S
= √3 × 12A × 110V / 1000 = 2.286kVA
