Generator sizing is unique to individual applications, influences such as site conditions, motor efficiencies, starting methods and generator step ratings are among many factors that can determine the KVA of the generator needed. Therefore this calculator should be used as a guide only and clarification should be obtained by a certified engineer.

CONVERTING KW (KILOWATTS) TO KVA POWER FACTOR 0.8

KW
EQUALS
KVA

CONVERTING KVA (POWER FACTOR 0.8) TO KW (KILOWATTS)

KVA
EQUALS
KW

CONVERTING AMPS TO KVA/KW

1 Phase
3 Phase
VOLTS
240
AMPS
PF
1
GENERATOR KVA
0
GENERATOR KW
0
1

CALCULATING AMPS (WHEN KVA IS KNOWN)

1 Phase
3 Phase
Generator kva
VOLTS
240
PF
1
AMPS
0
KW
0
1

CALCULATING 3-PHASE 400V MOTORS - ENTER STARTING METHOD AND MOTOR HP

START SEQUENCE MOTOR HP MOTOR KW PF Direct on line Star delta Run variable Amps Start variable Run amps Start amps
1
0
0.8
1.5
0
3.0
0
0
2
0
0.8
1.5
0
3.0
0
0
3
0
0.8
1.5
0
3.0
0
0
4
0
0.8
1.5
0
3.0
0
0
5
0
0.8
1.5
0
3.0
0
0
6
0
0.8
1.5
0
3.0
0
0
Generators needed to run
0
KVA
Generators needed to start
0
KVA
recommended Generator needed
0
KVA
Reset Form