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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 / PV Systems / Solar Energy on January 17th, 2025

Photovoltaic Microinverters – Applications, Advantages and Disadvantages

Introduction Photovoltaic (PV) microinverters are compact power conversion devices used in solar energy systems to convert direct current (DC) from individual solar panels into alternating current (AC) for use in residential, commercial, and industrial applications. Unlike traditional string inverters that handle multiple panels, microinverters are installed on each solar panel, offering several unique benefits and challenges. This document explores the...
Posted in Design / PV Systems / Solar Energy on January 16th, 2025

Case Study: Shading Effect on the Performance of a Photovoltaic (PV) System

1. Introduction Shading is one of the primary factors that negatively affect the performance of photovoltaic (PV) systems. Even partial shading can significantly reduce energy output and lead to permanent damage to the system. This case study analyzes the impact of shading on a PV system using various shading scenarios, their corresponding power losses, and mitigation strategies to improve...
Posted in Design / PV Systems / Solar Energy on January 15th, 2025

Shading Effect on the Performance of a Photovoltaic (PV) Panel

Shading is one of the most critical factors that negatively impact the performance of a photovoltaic panel. Even a small amount of shading can significantly reduce the energy output and efficiency of a solar panel. Below, we explore the effects of shading on PV panels in detail. 1. How Shading Affects PV Panels A photovoltaic panel is composed of multiple solar...
Posted in Design / Harmonics / Lightning Protection on January 14th, 2025

Mitigation Strategies for Power Supply Disturbances in Electrical Networks

Power supply disturbances can cause significant problems in electrical networks, leading to equipment failure, data loss, and reduced lifespan of devices. Below are the main sources of power supply disturbances and effective strategies to mitigate them. 1. Internal Sources of Disturbance These disturbances originate within the electrical network. A. Switching Operations Problem: Switching transformers, capacitors, or circuit breakers can cause transient surges and...
Posted in Design / Protection on January 7th, 2025

Comparison of Tripping Characteristics for Miniature Circuit Breakers (MCBs)

Miniature Circuit Breakers (MCBs) are essential for protecting electrical circuits from overcurrent, short circuits, and faults. The tripping characteristics of MCBs define how quickly they disconnect a circuit based on the type of load and fault current. Different types of MCBs are used depending on the nature of the circuit and its expected inrush currents. Types of MCBs and Their...
Posted in Design / Protection on January 6th, 2025

Non-Trip Circuit Breakers – Standards, Applications, and Comparisons

 1. Comparison of Non-Trip Circuit Breakers vs. Standard Circuit Breakers 1.1 Key Differences in Design and Function Feature Non-Trip Circuit Breaker Standard Circuit Breaker Automatic Tripping No (manual intervention required to disconnect) Yes (trips automatically during faults) Overcurrent Protection Not provided by the breaker itself Provided to protect wiring and devices Manual Control Required to disconnect the circuit Optional (can trip automatically) Primary Use Maintenance, diagnostics, critical systems General protection of circuits from overloads and...
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Learn the basics

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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