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Ver Pangonilo, PEE RPEQ

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Ver Pangonilo

We provide safe, reliable and sustainable Energy Solutions

Summary of Qualifications

Professional Registrations
— Philippines: Professional Electrical Engineer (First Placer – April 1991)
— Australia: Registered Professional Engineer of Queensland (RPEQ)
Professional Memberships
— Institute of Integrated Electrical Engineers (Philippines) – Life Member No. 23633
— IEEE Member No. 90438137 - IEEE Power & Energy Society
Education
B.Sc (Eng) Electrical, 1983 - Saint Louis University
Baguio City, Philippines
Specialist Courses
— Hazardous Area Classification Certificate No. CT04248 (Australia)
 → UEENEEM015B Classify hazardous areas
 → UEENEEM016B Design electrical installations in hazardous areas
 → UEENEEM017B Design explosion-protected electrical system
In partial completion of UEE61207 - Advanced Diploma of Engineering - Explosion protection
Training and Seminnars
— ISO 9001:2015 - Understanding and Requirements Implementation
— Effective Risk Management
— Task Risk Assessment

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Core Competencies

Concept definition, front-end engineering (FEED) and detail design engineering
— Equipment specification, selection, procurement, installation and commissioning
— Power distribution, earthing, lighting and lightning protection design
Procurement, project management and construction management
— Purchase requisitions and technical bid evaluations
Power System Design
— Power system modelling(ETAP, SKM Power Tools, PowerCad)
— Electric Power Distribution for Industrial and Commercial Facilities
— Short-ciruit Calculation and Protection Coordination
— Calculations for equipment selection
— Earthing (grounding) and lightning protection
— Lighting design
— Semiconductor and Clean Room Facilities
— UPS and Emergency Genecators
Commissioning, maintenance, estimating and construction
— Capital Expenditure (CAPEX) estimating
Hazardous area design and installation
— Upstream and downstream oil & gas facilities, refineries and process plants
— Offshore platforms, floating production storage and offloading (FPSO)
— LNG pipelines, bulk water transmission pipeline
— Tunnel/underground facilities installations
Water pumping stations, water treatment & sewage plants

Latest Blog

Posted in Design / Safety on February 4th, 2025

Substation Grounding System – Why is it Required?

A. Purpose of Substation Grounding System The substation grounding system is a crucial component of the overall electrical infrastructure. Proper grounding serves two key purposes: It enables the safe dissipation of electric current into the earth without surpassing the operational limits of the equipment. It ensures a secure environment, protecting personnel near grounded facilities from electric shock hazards during...
Posted in Design / Harmonics / IEC / IEEE / Standards on January 30th, 2025

Harmonic Voltage Factor (HVF) – Limits, Effects and Migitation

A. What is HVF? The Harmonic Voltage Factor (HVF) is a measure of the distortion in a voltage waveform caused by harmonic components. It quantifies the impact of harmonics on the overall voltage quality in a power system. Mathematically from IEC 60034-1, HVF can be expressed as: [pmath]HVF=sqrt{sum{n=2}{k}{{{u_n}^2}/{n}}}[/pmath] Where: un is the ratio of the harmonic voltage Un to the rated voltage UN n is...
Posted in Design / Protection / Tutorials on January 29th, 2025

Bus Protection Considerations

Selecting an appropriate bus protection scheme requires careful consideration of several factors, including bus layout, permissible switching scenarios, availability of suitable current transformers (CTs), and maintenance requirements. High-impedance bus relaying is ideal for buses with statically assigned zone currents, provided that suitable CTs are available. These systems do not require disconnect status inputs. However, substations with terminals that switch between...
Posted in Design / IEC / IEEE on January 28th, 2025

Comparison of Low Voltage Circuit Breaker Standards – IEC 60898-1, IEC 60947-2 and ANSI/NEMA AB3

A. Overview of Standards IEC 60898-1 Title: Circuit breakers for overcurrent protection for household and similar installations. Scope: Primarily focused on low-voltage circuit breakers used in residential, commercial, and light industrial applications. Voltage Rating: Up to 440V AC. Current Rating: Up to 125A. Breaking Capacity: Typically 6kA to 10kA. IEC 60947-2 Title: Low-voltage switchgear and controlgear - Part 2:...
Posted in Design / PEC on January 24th, 2025

Philippine Electrical Code – Identification of Ungrounded Conductors

The Philippine Electrical Code (PEC), provides requirements for the identification of ungrounded conductors to ensure safety and proper operation in electrical installations. These requirements are specified in Article 2.10 - Branch Circuits, and Article 2.15 - Feeders. Branch Circuits Article 2.10.1.5(C) states that Ungrounded conductors shall be identified in accordance with 2.10.1.5(C)(1) or (2), as applicable. Article 2.10.1.5(C)(1)(a) (a)...
Posted in Design / Education on January 23rd, 2025

Book Review – Power System Analysis and Design

This book aims to provide methods for power system analysis and design, with a particular emphasis on using personal computers. The content is presented in sufficient depth to equip undergraduate students with a solid foundation in the basic theory. The approach encourages the development of critical thinking skills, enabling students to gain a comprehensive understanding of topics in power...
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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 …

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Short Circuit Study
What is a Short Circuit Study? A short circuit study calculates the short circuit capacity at designated locations within a...
MVA Method Short Circuit Calculation
A Short Circuit Study is an important tool in determining the ratings of electrical equipment to be installed...
MVA Method Load Flow Calculation
In previous tutorials for the MVA method, we have discussed the importance of Short Circuit Study, combining KVAs and...
MVA Method for 3-Winding Transformer
In previous tutorials, the examples provided were mostly for 2-winding transformers. In this tutorial, fault calculations for a 3-winding...
Complex MVA Method – Part 3
In Part 2, we have seen how to combine MVAs connected...
Complex MVA Method
The normal MVA method, despite its simplicity, provides only an approximate solution to determine the fault levels in a...
Complex MVA Method – Part 2
After presenting the equations that we will be using for the Complex MVA Method in Complex MVA Method – Part 4
In Part 1, Part 2, and Part...
Combining KVAs
KVAs in series. The total KVAs in series (KVAtotal) is the reciprocal sum or inverse sum of all series...

Cable Selection

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

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Cable Selection – Single Phase
Note: This will be the first of a series of tutorials for the selection of cables. The objective of this...
Fault Loop Impedance
Note: This is the second part of a series of tutorials for cable selection. We have done cable selection based...
Cables Selection for Motors
When selecting a suitable cable size for a motor, there are more parameters to consider than when selecting cables...
High Voltage Underground Cable Selection
Unlike the other Cable Selection tutorials which deals with low voltage (LV) cables,...
Earthing Conductor Sizes
The following table lists the recommended minimum sizes of earthing conductors. Note: This serves only as a guide, calculations are...
Arc Flash Hazards
It's not too long ago that arc flash hazards has become an important part of electrical design. More clients...
IEEE 1584 Arc Flash Calculations
IEEE 1584 provides empirical formulas for determining arcing fault current, flash protection boundaries, and incident energy. The formulas are...
Time-Current Curves Using Excel – Part 1
In these articles, I have discussed the methodology on how to create time-current curves using excel.
  1. Creating Coordination Curves...
Time-Current Curves
Discrimination & coordination using Time-Current Curves
  1. TC Curves Part 1 - Introduction
  2. Time-Current Curve Part 2 – Discrimination
    In Part 1, I have discussed the basics of using excel in plotting time-current curves. In...
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Our Services

Technical Consulting

We provide technical support, perform troubleshooting functions and resolve customer issues.

Project Concept Developemnt

We provide solutions to turn customer ideas into reality.

Detailed Engineering

We prepare all technical documents including to drawings to enable procurement of materials or and equipment and to carry out construction.

Project Management

Let us help you achieve your project goals and objectives within scope, time, and budget.

Construction

We build and deliver your project according to your requirements, specifications, budget and schedule.

Maintenance

We provide solutions to ensure optimum performance of your equipment.

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Design Guides

This design guide is intended provide typical electrical installation scenarios with each scenario to include compliance to standards. As their are many ways of complying with standards,this design guide is prepared to suit the minimum standards requirements.

While design principles equally applies to larger and more projects, this design guide will not attempt to address the design needs of those installations.

Philippine Electrical Code

PEC 2009

A Design Guide according to the Philippines Electrical Code is available at Filipino Engineer Wiki

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