FORMULAS

 

 
HP = Torque(Lb.Ft.) X RPM Torque = HP X 5250  Ohms  =  Volts

5250

RPM Amps
Volts = Amps  X  Ohms  Amps  = Volts
Ohms
DC POWER:
HP = Volts X Amps. X Efficiency
746
Watts = Volts X Amps Amps = Watts
Volts
AC POWER:
Efficiency =   746 X Output HP
   Input Watts
3 Phase Kilowatts = Volts X Amps X Power Factor X 1.732
1000
3 Phase Volt-Amps  =  Volts X Amps X 1.732
3 Phase Amps =                            746 X HP                                           
1.732 X Volts X Efficiency X Power Factor
3 Phase Efficiency =                          746 X HP                                                 
Volts X Amps X Power Factor X 1.732
3 Phase Power Factor =                   Input Watts                
        Volts X Amps X 1.732
1 Phase Kilowatts =         Volts X Amps X Power Factor      
1000
1 Phase Amps =

                      746 X HP                                     

  Volts X Efficiency X Power Factor
1 Phase Efficiency =                       746 X HP                                 
   Volts X Amps X Power Factor
1 Phase Power Factor  =                Input Watts                 
    Volts X Amps X 1.732
HP (3 Phase) =   Volts X Amps X 1.732 X Efficiency X Power Factor

746

HP (1 Phase) = Volts X Amps X Efficiency X Power Factor

746

OPERATING SPEED
Seconds  =         WK X Speed Change       
308 X Avg. Accel. Torque
WK = Rotor Inertia + Load Inertia (Lb.Ft.)
Avg. Accel. Torque =   [(Full Load T + Max.T)/2] + Max.T + Locked Rotor T
3
Load WK ( at shaft ) =    WK2(load) X Load RPM
Motor RPM
Shaft Stress (P.S.I.) =      HP X 321.000          
RPM X Shaft Diam.3
AMBIENT TEMPERATURE = The temperature of the surrounding cooling medium.
RATED TEMPERATURE RISE = The permissible temperature above ambient when operating under load
 F = (9/5 X  C) + 32
  C = 5/9( F - 32)

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Microcon Technologies Inc.

1105 Crestlawn Drive, Unit # D8 & D9

Mississauga, Ontario L4W 1A7 Canada

Tel: (905) 602-4770

Fax: (905) 602-4779

e-mail: sales@microcontechnologies.com

Website: www.microcontechnologies.com