Safety Against Overvoltages
Overvoltages are unwanted potentials occurring in electrical systems between a phase conductor and the earth or ground, or between phase conductors having a peak value greater than the peak of …
Filipino Professional Electrical Engineer
Overvoltages are unwanted potentials occurring in electrical systems between a phase conductor and the earth or ground, or between phase conductors having a peak value greater than the peak of …
Accumulation of moisture inside the 13.8 kV main bus and insulation tracking caused another arc-flash incident on the 13.8 kV Indoor Switchgear. An annual preventive maintenance was scheduled prior to …
An indoor 13.8kV Vacuum Circuit Breaker switchgear has an arc flash incident this week. Investigation results showed that the wet weather increased the humidity inside the switchroom, incomplete covering of …
The service life of electric motors is dependent on two (2) main components: Electrical components (i.e. windings & insulations); Mechanical components (i.e. core, shaft, bearings, frame and cooling system). The …
To ground or not to ground is a decision that an Electrical Engineer needs to make when planning or modifying an electrical power distribution system. The decision is dependent on …
Grounding is one of the most taken for granted provision of the Philippine Electrical Code. The incompetence of Electrical Inspectors make this practice worst. I inspected the grounding system of …