Power Frequency Withstand Voltage Tester for Insulators

Power Frequency Withstand Voltage Tester for Insulators

AC high voltage test systems for dry and wet power frequency withstand tests on insulator units per IEC 60120 and IEC 60383.

Published: 2026-05-19 | Category: Electrical Test Equipment

Technical Specifications

ParameterSpecification
Output Voltage100kV, 200kV, 300kV, 500kV AC
Transformer Rating50-200 kVA
Voltage MeasurementCapacitive divider, class 1.0
Partial Discharge< 5 pC at rated voltage
Wet Test CapabilityIntegrated spray per IEC 60060-1

Key Features

Understanding Power Frequency Withstand Tests

The power frequency withstand voltage test is the most fundamental electrical test for insulators. It verifies that the insulator can withstand rated voltage without flashover or puncture. Performed both dry and wet — the wet test simulates rain conditions.

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