Calcolo GE

What power? How can calculate Kva or Kw?

Try to use the following formulas

Legenda:

HP = Horsepower
kW = Kilo Watts
kVA = Kilo Volt Amps
I = Ampere
V = Volts
PF = Power Factor
GE = Gruppo Elettrogeno

**Ampere (I), kwown kVA.**
Phase 1, 2, 3	Generator kVA	Volts Required		Ampere I

**from** **kVA to kW**
kVA		kW

**from kW to kVA**
kW		kVA

**from** **kW to HP**
kW		HP

What size genset is needed to start a 3 phase electric motor Direct on Line (DOL) start
HP motore		kVA del GE

Generator Size to Start Motors

Instructions: You only need to fill in the columns coloured in blue.
Fill in the HP of the motor(s) in their starting squence, select the start method (Direct On Line or Star Delta) and press Evaluate. The required generator size will then be displayed at the bottom.

3 Phase (415 volt @ 50Hz)
1 Phase (240 volt @ 50Hz)

Starting Sequence Motor HP Start Method
DOL / StarDelta Run Variable Phase Current Starting Value Total Run Current Total Start Current

1 /

2 /

3 /

4 /

5 /

6 /

Generator Size for Starting with: kVA*

Generator Size for Running with
kVA*

Generator Size Recommended: kVA*

* Please NOTE the above calculations are an estimate only because other factors such as site conditions, motor efficiencies and iron losses are not taken into consideration.