Generac Power Systems 91355 - Manual (Page 29)

ELECTRICAL FORMULAS
TO FIND KNOWN VALUES 1-PHASE 3-PHASE
KILOWATTS (kW) Volts, Current, Power Factor ExI
1000
E x l x 1 . 7 3 x P F
1000
KVA Volts, Current ExI
■ ■ 1000
ExI 1.73
1000
AMPERES kW, Volts, Power Factor k W x I O O O ■
E
k W x 1000
E
X
1.73
X
PF
WATTS Volts, Amps, Power Factor Volts
X
Amps E
X
1
X
1.73
X
PF
NO. OF ROTOR
POLES
Frequency, RPM . 2
X
60
X
Frequency
, RPM
2
X
60
X
Frequency
RPM
FREQUENCY RPM, No. of Rotor Poles RPMX-Roles
. 2 X 60
RPM
X
Poles
2 x 6 0
R P M Frequency, No. of Rotor Poles 2
X
60
X
Frequency
Rotor Poles
2
X
60
X
Frequency
Rotor Poles
kW (required for
Motor)
Motor Horsepower, Efficiency HP
X
0.746
Efficiency
HP
X
0.746
Efficiency
RESISTANCE Volts, Amperes E
1
E
1
VOLTS Ohm, Amperes IxR IxR
AMPERES Ohms, Volts E
R
E
R
E = VOLTS I = AMPERES R = RESISTANCE (OHMS) PF = POWER FACTOR
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