Electrical Power Engineering

What is power factor - Power factor is defined as the ratio of real power to apparent power in the circuit. Power in the circuit are Apparent Power (VA), Real Power (Watt), and Reactive Power (VAR).

How To Read Motor Nameplate - Every motor nameplate must show basic data such as voltage, Full Load Ampere (F.L.A), and frequency. North America, Europe, Japan, Africa, has different standard. To know standard of motor is very important. It helps you from buying wrong motor. Yet, no each motor has specific data. Sometimes name plate did not show the diagram voltage, efficiency. Nevertheless, many motor always show voltage, full load ampere and frequency. NEMA: National Electrical Manufacture Association NEC: National Electrical Code JIS: Japanese Industrial Standard IEC: International Electrotechnical Commision