Zakaria El Intissar

Zakaria El Intissar is an automation and industrial computing engineer with 12+ years of experience in power system automation and electrical protection. He specializes in insulation testing, electrical protection, and SCADA systems. He founded InsulationTesting.com to provide practical, field-tested guides on insulation resistance testing, equipment reviews, and industry standards. His writing is used by electricians, maintenance engineers, and technicians worldwide. Zakaria's approach is simple: explain technical topics clearly, based on real experience, without the academic jargon. Based in Morocco.

Author Archives: Zakaria El Intissar

How to Megger a Motor: Step-by-Step Insulation Resistance Testing Guide

Megger testing is the fastest way to find out if your motor’s insulation is healthy or heading toward failure. The test takes about 5 minutes once you’re set up, and it can save you from a $50,000 motor rewind or worse — an unplanned shutdown. In this guide, I’ll walk you through exactly how to megger a motor,… Read More »