What You Didn’t Know About Surge Testing

Preventing unscheduled downtime and expensive repairs should be the primary goal of every predictive maintenance program. Approximately 80% of electrical failures begin in the motor winding insulation, not the groundwall insulation. Unless a surge test is implemented, this critical winding insulation problem can’t be detected until it reaches the groundwall insulation due to extreme heat advanced by shorted turns: too late! Find out how the surge test works, why megohm or hipot testing will not detect winding insulation problems, and why this fantastic nondestructive test has

• Scott Lebruska
• Megger Baker Instruments