Ver Pangonilo, PEE RPEQ

Filipino Engineer


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Rotating-machine Reactance Multipliers

Posted by Ver Pangonilo on December 15, 2018 under Design

The momentary or first cycle current is used to evaluate the closing or latching of the high voltage circuit breaker. Other selection criteria are the interrupting and symmetrical short circuit currents. The sub-transient reactance of…

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Advantages of Per Unit and Percent Calculations

Posted by Ver Pangonilo on December 8, 2018 under Design

Power System analysis software are very expensive beyond the reach of small and medium enterprises. The only option, when fault analysis is required, is to perform calculations manually using available resources such calculators or desktop…

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Pinoy Crab Mentality – Plagiarism In Its True Sense

Posted by Ver Pangonilo on December 4, 2018 under Culture, Life

While checking Google ranking of my articles, I was able to find out that my article, Pinoy Crab Mentality – A Bad Trait Preventing Progress has been plagiarized by the blog “Raging Pinoy in United…

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Cheap China Imports Killing our Local Industries

Posted by Ver Pangonilo on November 29, 2018 under Economy, Life

Data from Philippine Statistics Authority on Balance of Trade indicate that imports from China is approximately twice Philippine exports to China in terms of dollar value while the Philippines balance of trade with the United…

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Predicament of the Filipino Maintenance Engineer Maintaining End of Service Life Equipment

Posted by Ver Pangonilo on November 27, 2018 under Maintenance

Maintaining an equipment past the end of its service life is a real pain in the neck for Filipino Maintenance Engineers. End of support from the manufacturer and the presence of proprietary hardware and software…

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Tutorials

MVA Method

At this times where supercomputers could fit into a mobile phone and utility softwares are always available to do particular tasks, most Electrical Engineers tend to forget how to implement hand calculations, have already forgotten…

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Short Circuit Study
What is a Short Circuit Study? A short circuit...
MVA Method Short Circuit Calculation
A Short Circuit Study is an important tool in...
MVA Method Load Flow Calculation
In previous tutorials for the MVA method, we have...
MVA Method for 3-Winding Transformer
In previous tutorials, the examples provided were mostly for...
Complex MVA Method – Part 3
In Part 2, we have seen how to combine...
Complex MVA Method – Part 1
The normal MVA method, despite its simplicity, provides only...
Complex MVA Method – Part 2
After presenting the equations that we will be using...
Complex MVA Method – Part 4
In Part 1, Part 2, and Part 3 of...
Short-circuit apparent power of the system
When doing power systems study, it always the predicament...
Combining KVAs
KVAs in series. The total KVAs in series (KVAtotal)...

Cable Selection

Cable Selection – Single Phase Earth Conductor Sizes Fault Loop Impedance High Voltage Cable Selection – Underground

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Cable Selection – Single Phase
Note: This will be the first of a series...
Fault Loop Impedance
Note: This is the second part of a series...
Cables Selection for Motors
When selecting a suitable cable size for a motor,...
High Voltage Underground Cable Selection
Unlike the other Cable Selection tutorials which deals with...
Earthing Conductor Sizes
The following table lists the recommended minimum sizes of...
Arc Flash Hazards
It's not too long ago that arc flash hazards...
IEEE 1584 Arc Flash Calculations
IEEE 1584 provides empirical formulas for determining arcing fault...
Time-Current Curves Using Excel – Part 1
In these articles, I have discussed the methodology on...
Time-Current Curves
Discrimination & coordination using Time-Current Curves TC Curves Part...
Time-Current Curve Part 2 – Discrimination
In Part 1, I have discussed the basics of...
Voltage Drop Calculation
This article provides a guideline on the selection of...

Profile

Ver Pangonilo

Ver Pangonilo, PEE RPEQ

A Registered Professional Engineer of Queensland (RPEQ), Professional Electrical Engineer (PEE – Philippines) and certified hazardous areas electrical designer with more than 20 years experience in concept definition, front-end engineering (FEED), HV & LV detail design, 3D model reviews, work share, construction and commissioning of Hazardous and Non-Hazardous Area electrical installations in water pipeline and pumping facilities, offshore platforms, FPSO, oil & gas process plants and pipelines including related facilities; experience in instrumentation and control, hazardous area classification for explosive gas and combustible dust atmospheres including intrinsically safe calculations and Computerised Maintenance Management Systems (CMMS).
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