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 skills necessary to properly test, assess, and validate electrical equipment.
Pro Software Tools

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

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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

5 Often Overlooked Tests for Power Circuit Breakers
3 Basic Electrical Tests for Medium-Voltage Circuit Breakers
Circuit Breaker Safety Interlock Systems Explained
Transformer Dehydration Using the Low Frequency Heating Method
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Ground Resistance Testing: Answers to Frequently Asked Questions
4 Important Methods of Ground Resistance Testing
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

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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