DORMOSH ECONOMIC GROUP            

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.. DORMOSH ECONOMIC GROUP for generators and Alternators and engines ..    Dormosh Economic Group. is at present the leading distributor for some of the international brands like Perkins , Volvo Penta , Scania , Cummins , Dorman , Deutz , in United Arab Emirates , Syria ,  Yemen , Sudan , Lebanon , Iraq. All warranties for a period of (I) one year for the Perkins and Volvo products are from their respective companies or agents in United Arab Emirates and Syria  عربي

POWER CALCULATOR

 
These calculators will assit you in determining what size generator you may require or how to convert one unit of electricity to another.

 

                                                    Guide to units:

                     HP     =   Horsepower
                     kW     =   Kilo Watts
                     kVA   =   Kilo Volt Amps

                      I      =   Ampere or Current
                     V     =   Volts
                     PF   =   Power Factor

Calculating Ampere (I), given kVA
Phase
1, 2, 3
Generator
kVA
Volts
Required
= Ampere
I
                    


Converting kVA to kW
kVA = kW
       
Converting kW to kVA
kW = kVA
       

Converting kW to HP
kW = HP
                                      


What size genset is needed to start a 3 phase electric motor Direct on
Line (DOL) start
HP of
Motor
= Generator
kVA Required
                                      

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.

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