Dielectric Loss Tester Applies a Sinusoidal AC Voltage to the Test Object
来源：Yangzhou Darui Electric Co., Ltd.
Date: 2026-04-20 15:53:55 16:05:26 16:05:26
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Industry Trends
The dielectric loss tester is an essential tool in preventive tests, acceptance tests, and fault diagnosis of power equipment. It is mainly used for:
Insulation testing of power equipment: Regular insulation testing of transformers, instrument transformers, bushings, circuit breakers, power cables, coupling capacitors, and other equipment to assess their health condition.
The dielectric loss tester applies a sinusoidal AC voltage to the test object
The dielectric loss tester, often referred to as the "dissipation factor meter," is a key instrument used to evaluate the insulation performance of high-voltage electrical equipment. By measuring the dielectric loss tangent (tanδ) and capacitance (Cx) of insulating materials, it can sensitively detect overall moisture, deterioration, aging, or local defects in equipment insulation.
