Complete Machine Shop

  • Full Dynamic Balancing
  • Lathe & Mill Work
  • All Types of Welding
  • Heavy Metal Drilling
  • Heavy Duty Press
  • Automatic Winding

Contact Oakville electric

2355 Royal Windsor Drive, Unit 5,
Mississauga , Ontario L5J 4S8
BUS: 905-822-6032
FAX: 905-822-9957
Email: oakvilleelectric@yahoo.ca

Useful Formulas

OHMS LAW

  • Ohms = Volts Amperes
  • Amperes = Volts Ohms
  • Volts = Amperes x Ohms

POWER - A.C. CIRCUITS

  • Power Factor = Watts (Volts x Amperes)
  • Three Phase Kilowatts = (Volts x Amperes x Power Factor x 1.732) 1000
  • Three Phase Volt-Amperes = Volts x Amperes x 1.732
  • Three Phase Amperes = (746 x Horsepower) (1.732 x Volts x Efficiency x Power Factor)
  • Single Phase Kilowatts = (Volts x Amperes x Power Factor)1000
  • Single Phase Amperes = (746 x Horsepower) (Volts x Efficiency x Power Factor)

POWER - D.C. CIRCUITS

  • Watts = Volts x Amperes
  • Amperes = Watts Volts
  • Horswpower = (Volts x Amperes x Efficiency) 746

MOTOR APPLICATION FORMULAS

  • Torque (lbs.-ft.) = (Horsepower x 5250) RPM
  • Shaft Stress (lbs. per sq. inch) = (Horsepower x 321000) (RPM x Shaft Diam3)

FOR PUMPS

  • Horsepower = (GPM x Head in Feet x Specific Gravity) (3960 x Efficiency of Pump)

FOR FANS & BLOWERS

  • Horsepower = (CFM x Pressure (lbs. per sq. ft.)) (33000 x Efficiency)

SPEED

  • Synchronous RPM = (Hertz x 120) Poles
  • Percent Slip = (Synchronous RPM - Full Load RPM) Synchronous RPM x 100