Tools and Resources for Electrical Test Technicians

TestGuy is a knowledge base dedicated to the fine art of power distribution testing, maintenance and troubleshooting. We offer resources to help field technicians gain the knowledge necessary to properly test, assess, and validate electrical equipment.
Pro Software Tools

Electronic test forms and productivity tools designed for professional electrical test technicians.

ETT Exam Prep

3000+ questions on electrical safety, maintenance, performance testing, and industry standards.

Articles & Guides

Technical resources and field notes for electrical testing and maintenance.

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Network with other test technicians and share knowledge for a better power grid.

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Featured Articles

Field Testing Label Requirements for Electrical Equipment Maintenance
Sync Check Relay (25) Fundamentals and Testing Explained
Transformer Cooling Systems and Methods Explained
10 Electrical Distribution System Arrangements Explained
Insulation Resistance Test Methods, A Beginners Guide
Specific Gravity of Transformer Oil, Where to Draw Your Sample
3 Routine Inspections and Checks for Liquid Filled Transformers
Insulating Liquids: Basic Properties, Types and Applications Explained
4 Critical Tests for Evaluating HV Circuit Breaker Performance
Power Factor Testing: Voltage Considerations Explained
Test Equipment 101: The Basics of Electrical Testing
Inverse Time Overcurrent Relays and Curves Explained

Test Your Knowledge

Sharpen your skills with our collection of quizzes on electrical safety, maintenance & testing of electrical equipment and industry standards.

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