Training
Handbook of Electrical Generators
The handbook is a practice-oriented reference bridging theoretical fundamentals with real-world design, covering engine-driven generator sets (diesel and gas) for emergency, standby, prime, and continuous applications
Generators
Technical Training
English
Generators
Technical Training
English
Manual Overview
This page hosts the Handbook of Electrical Generators (First Edition, 2025), prepared by Ahmed Moharram of VOLT-EDGE. The handbook is a practice-oriented reference bridging theoretical fundamentals with real-world design, covering engine-driven generator sets (diesel and gas) for emergency, standby, prime, and continuous applications, aligned with ISO, IEC, NFPA, NEC, and SBC codes. It’s provided as a free, verified PDF download for electrical engineers, consultants, contractors, and site engineers.
Technical Specs
| Chapter | Topic |
|---|---|
| 1 | Introduction & Reference Standards (ISO, IEC, NFPA, NEC, SBC) |
| 2 | Types of Generators and Their Components |
| 3 | Generator Sizing Calculations |
| 4 | Generator Selection Criteria According to Codes |
| 5 | Generator Installation & Integration |
| 6 | Protection & Coordination |
| 7 | Testing & Commissioning |
| 8 | Operation & Maintenance |
| 9 | Appendices (spec templates, fuel tables, formulas, glossary) |
Sizing & Selection Reference
| Concept | Definition / Rule |
|---|---|
| ESP | Emergency Standby Power — backup only during utility failure, not for continuous use |
| PRP | Prime Rated Power — unlimited annual hours, variable load, allows short-term overload |
| LTP | Limited-Time Prime — prime rating for limited hours per year |
| COP | Continuous Operating Power — 24/7 constant load, highest reliability |
| Three-Phase Current | I(A) = S(kVA) × 1000 / (√3 × Vll(V)) |
| Active Power | P(kW) = S(kVA) × PF |
| Motor Starting Multiplier | DOL ≈ 6-7×, Star-Delta ≈ 2.5-3×, Soft Starter ≈ 2-3×, VFD ≈ 1.2-1.5× |
| UPS Derating | Oversize genset by ~1.5× UPS rating unless alternator is rated for 100% non-linear load |
| Altitude Derating | ~10% per 1000m above sea level (check OEM tables) |
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Important Safety Notice: Before installing, operating, servicing, or troubleshooting this equipment, verify that this manual matches your exact model and serial number. Always read and follow the manufacturer's safety instructions.
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