Elektriksel Formüller

VALUE 1-PHASE 3-PHASE
WATTS (W) I x E x PF I x E x 1.73 x PF
KILOWATTS (kW) E x L xPF
1000
E x I x 1.73 x PF
1000
AMPERES (I) kW x 1000
E x PF
kW x 1000
E X 1.73 X PF
KILOVOLT AMPERES (kVA) I x E
1000
I x E x 1.73
1000
FREQUENCY (Hertz orf) Rotor Poles x RPM
120
Rotor Poles x RPM
120
RPM (n) Hertz x 120
Rotor Poles
Hertz x 120
Rotor Poles
NUMBER OF ROTOR POLES (P) Hertz x 120
RPM
Hertz x 120
RPM
POWER FACTOR (PF) Actual Watts
I x E
Actual Watts
I x 1.73 x E
HORSEPOWER (HP) I v E x PF
746 c EFF
I xE x 1.73 x PF
746 c EFF
AMPERES (when kW is known) kW x 1000
E c PF
kW x 1000
E x 1.73 x PF
AMPERES (when kVA is known) kVA x 1000
E
kVA x 1000
E x 1.73


 
I = current in amperes
E = voltage in volts
W = watts
kW = power in kilowatts
kVA = apparent power in kilo-volt-amperes
HP = output power in horsepower
RPM (n) = motor speed in revolutions per minute (RPM)
ns = synchronous speed in revolutions per minute (RPM)
Rotor Poles (P) = number of poles
Hertz (f) = frequency in cycles per second (CPS)
T = torque in pound-feet
EFF = efficiency as a decimal
PF = power factor as a decimal
HP = horsepower