1kva

[50KG]

120V එක්ක 1kva කියන්නේ ඇම්පියර් කීයද ?

 

[LazyLizard]

P = I*I*V කියල එකක් ඉගෙනගත්ත මතකයි ​

 

[ctooi]

Single phase kVA to amps calculation formula
The phase current I in amps is equal to 1000 times the apparent power S in kilovolt-amps, divided by the RMS 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 phase current in amps when the apparent power is 3 kVA and the RMS voltage supply is 110 volts?
Solution:
I = 1000 × 3kVA / 110V = 27.27A
3 phase kVA to amps calculation formula
Calculation with line to line voltage
The phase 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 RMS voltage V in volts:
I(A) = 1000 × S(kVA) / (√3 × VL-L(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 phase current in amps when the apparent power is 3 kVA and the line to line RMS voltage supply is 190 volts?
Solution:
I = 1000 × 3kVA / (√3 × 190V) = 9.116A

Calculation with line to neutral voltage
The phase current I in amps is equal to 1000 times the apparent power S in kilovolt-amps, divided by 3 times the line to line RMS voltage V in volts:
I(A) = 1000 × S(kVA) / (3 × VL-N(V) )
So amps are equal to 1000 times kilovolt-amps divided by 3 times volts.
amps = 1000 × kVA / (3 × volts)
or
A = 1000 · kVA / (3 × V)
Example
Question: What is the phase current in amps when the apparent power is 3 kVA and the line to neutral RMS voltage supply is 120 volts?
Solution:
I = 1000 × 3kVA / (3 × 120V) = 8.333A

 

[WwW.lk]

8.333A

1000WA/120V=8.333A

 

[KasunKDP]

ඔලෙවල් වලට පාඩම් කරන්න පටන්ගත්තද.?