POWER FACTOR TESTING

3 days
2.4 CEUs
Hands-on
8:00am-4:30pm

Tuition USD $1175

Most failures of electrical equipment are the result of a breakdown in the insulation system. Power factor testing is an effective way to detect defective electrical equipment insulation. Power factor is the ratio of the capacitive or 'charging' current (measured in voltamperes) to resistive or 'leakage' current (measured in watts). It is a means of measuring insulation integrity since the smaller the power factor, the better the insulator. Insulation may be deteriorating, however, the equipment may not fail for some time. Although this condition represents a serious hazard, if deteriorated insulation is detected before failure, it can often be reconditioned instead of being replaced. This allows corrective action to be taken during a planned outage before extensive equipment damage results from insulation failure. Power factor testing also makes it possible to detect equipment insulation problems without making an internal visual inspection. The result is a significant decrease in maintenance cost and downtime. Power factor testing is essential for predictive and preventive maintenance.

Learning Objectives
• Safety procedures, testing methods, potential problems and compensation for them

• Analyze insulation systems of various substation equipment and proper test connections

• Perform various types of power/dissipation factor testing on transformers, oil circuit breakers, oil and compound filled bushings and insulating liquids

Who Should Attend
Designed for technicians, engineers and supervisors that are responsible for the power/dissipation factor testing at utility and industrial substation facilities.

Requirements
Requires working knowledge of AC/DC
theory. Field experience beneficial but not required.

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