The quality of insulation changes over time due to electrical, mechanical and environmental stresses to which electrical equipment is subjected.
In addition to the measurements taken during testing on new or reconditioned machinery, periodic verification of the insulation and impedance of electrical power components allows for preventive analysis aimed at detecting early degradation of equipment before it reaches insufficient levels and causes damage to the systems.
These non-destructive tests are very useful for verifying the safety status of alternators and electric motors.
