100 VA 5 kV AC Hipot Tester

Q1: What is hipot tester?
A1: AC-DC test transformer, using advanced production equipment, using the coil winding epoxy vacuum casting and CD-type core of the new technology, and similar products compared to oil-immersed transformers, significantly reduce the weight, reduce the volume, in quality to improve the insulation strength and resistance to moisture degree, and effectively weaken the leakage of magnetic and greatly enhance the transformer to withstand the impact of test short-circuit current capacity.

Q2: Is high voltage testing destructive?
A2: Hipot (or high potential testing) is a non-destructive test that goes by many names: overvoltage testing, dielectric breakdown testing, dielectric withstand testing, or insulation resistance testing. Some of all of these tests are designed to make sure that the insulation materials used in your motor are doing their job.

Q3: What is the difference between the hipot and the Megger?
A3: Both instruments apply a relatively high voltage to the insulator and absorb leakage current through the insulator commensurate with its insulation characteristics and condition. However, the megohmmeter gives the operator a measured value, while the hipot acts.

Tips: Is AC hipot testing destructive?

AC hipot testing is generally considered non-destructive when performed under proper conditions, but it can become destructive if limits are exceeded or insulation is weak.

During an AC hipot test, a high voltage—higher than the normal operating voltage—is applied to a product to verify the integrity of its insulation system. When the test voltage, duration, and current limits are set according to relevant standards, the test does not damage properly designed and manufactured equipment. Instead, it confirms that the insulation can safely withstand electrical stress.

However, AC hipot testing is inherently a stress test, meaning it pushes the insulation close to its limits. If the insulation is defective, degraded, or poorly manufactured, the applied voltage may cause breakdown, arcing, or excessive leakage current, resulting in failure. In this case, the test is not creating the defect but revealing an existing weakness.

Thank you for buying industrial test and measurement equipment on SISCO.com, all products sold by SISCO and the partner cover a 12 months warranty, effective from the date of receiving the products.

What is covered?

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