Philippine Electrical Code – Low Voltage
Low Voltage is mentioned many times in the Philippine Electrical Code (PEC). However, the PEC failed to explicitly include Low Voltage in the definition of terms. The purpose of the …
Video – Reasons to use per unit method
Refer to Per Unit discussion for additional details.
Matching the Induction Motor Rating to the Driven Load Power
It is of utmost importance that an induction motor selected for a particular application to have sufficient power and torque to be able to function properly and efficiently. Starting high …
Transformer Voltage Regulation
The impedance of a transformer limits the fault current through the transformer in the event of a fault. On the downside, it influences the voltage regulation of the transformer. International …
The Need for Power System Fault Analysis
Short-circuit analysis is carried out in electrical power systems to ensure the safety of workers as well as the general public. Electrical equipment can fail thermally or mechanically if they …
Effects of Voltage Variations on Induction Motors
Induction motors are susceptible to variations in supply voltage.Under such conditions, the performance of the motor will vary from the rating. NEMA MG-1 2014[1] 14.30.2 Effects of Variation in Voltage …