Article 2.0 Use and Identification of Grounded Conductors in the Philippine Electrical Code 2017 Edition has been expanded to cover sections not included in PEC 2009. The “Fine Print Note” …
The Philippines Electrical Code 2017 Edition, being a modified version of the 2017 edition of NFPA 70: National Electrical Code, went through extensive updates to incorporate sections and revisions not …
What is Short-Circuit Current Rating? The Philippine Electrical Code 2017 defines Short-Circuit Current Rating as the prospective symmetrical fault current at a nominal voltage to which an apparatus or system …
Variable frequency drives (VFDs) also known as variable-speed drives or adjustable-speed drives are used to power 3-phase AC electric motors in applications requiring greater control and power efficiency. The benefits …
Paralleling of generators is the synchronous operation of two or more generator sets connected together on a common bus in order to provide power to a common load. Paralleling equipment …
There are different criteria in the selection of circuit breakers including voltage, frequency, interrupting capacity, continuous current rating, and unusual operating conditions. This article will give a step by step …