EDWIN OGIE LIBRARY

Alternator Care & AVR Calibration — Step-by-Step Tests By Edwin Ogie • December 18, 2025 • -- Alternator maintenance and AVR calibration — practical, field-tested procedures for technicians. This practical guide explains alternator care and AVR (Automatic Voltage Regulator) calibration with safe, step-by-step tests you can run on-site. Ideal for technicians, repair shops and maintenance engineers — includes inspection checklists, static and dynamic tests, common faults, and repair advice. Keywords: AVR adjustment, alternator voltage problem . Contents Why alternator care and AVR calibration matter The alternator (generator head) and its AVR determine the quality and reliability of the electrical output. Poor alternator maintenance or mis-adjusted AVR leads to unacceptable voltage regulation, equipment trips, harmonics, overheating and premature failure. ...

Wye (Y) Phasor Calculations — Nigeria Case Study (230/400 V) — Step-by-Step By Edwin Ogie • December 18, 2025 • -- Wye phasors, line & phase voltages, current and power — practical calculations for Nigerian electricians. This post converts the WYE diagram in your screenshot into clear, accurate phasor math using **Nigeria standard voltages**. You’ll learn: how to compute line-to-line magnitude from phase voltages, perform phasor subtraction (digit-by-digit), compute currents for balanced Y loads, and calculate kVA/kW. A 40-question timed CBT quiz is included. Contents Quick orientation — voltage systems Two common low/medium voltage three-phase standards you may encounter: US-style 120/208 V Wye : Phase (line-to-neutral) ≈ 120 V, Line-to-line ≈ 208 V (because 120 × √3 ≈ 208). Nigeria / many countries: 230/400 V Wye : Phase = 230 V (line-to-neutral), Line-to-line = 230 × √3 ≈...

EO When Promises Break — a real-life story about adultery, consequences & repair By Edwin Ogie — Benin City · A compassionate, practical look at healing after infidelity Expand all Collapse all A true-to-life style narrative inspired by many real cases — names and identifying details changed. Click any heading to open that section. Opening — how it started: small choices, big cost Chinedu and Ifeoma were married five years. They had a small home in Benin City, two children, and routines built on shared chores and Sunday prayers. Work was busy; communication thinned; phone screen time increased. A workplace friendship — evenings of conversation that began "harmlessly" — slid into secret messages and then a physical affair. When Ifeoma discovered messages on Chinedu’s phone, the world they had built shifted in an instant. The discovery was not a sin...

EO Exam Anxiety Toolkit: 7 Practical Tools to Calm Your Mind Hook: “Before you enter the hall, try this two-minute breathing reset.” Non-clinical, safety-first techniques aimed at reducing acute exam anxiety. These are portable — use them before the test, in breaks, and during short pauses between sections. Expand All Collapse All Download one-pager (PDF) Two-Minute Breathing Reset — Box / 4-4-4 (Start here) Why: breathing regulates the autonomic nervous system and quickly reduces heart rate and panic. How (box/4-4-4): inhale 4 seconds → hold 4 seconds → exhale 4 seconds → repeat 5 times (≈2 minutes). Quick script: “Breathe in — 2, 3, 4. Hold — 2,3,4. Breathe out — 2,3,4.” Grounding: 5-4-3-2-1 Sensory Scan Why: anxiety narrows attention to worry; sensory scanning anchors you to present reality. ...

Edwin Ogie Library — English & Mathematics Quiz (30 Qs, 15 min) EO English Language & Mathematics Practice Quiz — 30 Questions (15 minutes) 15 English + 15 Maths questions • Timed practice. Explanations & printable certificate are available free to all users. 15:00 30 Questions Time: 15 minutes · Total marks: 30 Edwin Ogie Library Welcome — Candidate Enter your name & email to begin. Session saved locally in your browser. Access Free access Full name Email (optional) Start Quiz Resume Saved Session ...