Once an Engineer, Always an Engineer
In my more than three (3) decades of working with different companies in different countries dealing with different people from different countries, I always find that the saying once an …
Counterfeits Can Kill
Every day, counterfeit electrical products are finding their way into our homes, businesses, and public institutions. These fraudulent products pose a serious financial and legal liability to the electrical industry, …
Time-Current Curves Using Excel 2013
This tutorial serves a guide for the creation of time-current curves using Excel 2013. The user is expected to have at least an intermediate level of knowledge in the usage …
Why is the Transformer so Important to the Modern Man?
A transformer is a a device that has two or more coils wound on an iron core. Transformers provide an efficient means of changing voltage and current levels, and make …
Arc Flash Incident – 13.8 kV Indoor Switchgear Part II
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 …
Grounding and Bonding Permitted Methods
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 …