Our Product of the Month is the Model 4120A DC hipot. DC dielectric (over-potential) testing is typically performed when commissioning new installations or to verify the integrity of transformers after a repair. Featuring the latest in pulse width modulation technology, the Model 4120A produces a stable, high voltage output with low ripple. NO MORE lugging heavy wooden boxes to the job site! The 4120A is lightweight and portable.
Analog meters can be damaged by shock or vibration and can be hard to interpret. The Model 4120A uses digital meters which allow you to precisely set test voltages and easily read test currents.
See more at https://repaircalibration.com/product/model-4120a-dc-dielectric-test-set/