Automatic Transformer Oil Dielectric Loss & Resistivity Tester

The GDGY Automatic Insulating Oil Tan Delta Resistivity Tester integrates an oil test cup, high-frequency induction heater, temperature sensor, test bridge, AC/DC high-voltage sources, and standard capacitor to perform one-button automatic tests. It controls oil temperature (<100 °C) via inductive heating, avoiding sample contamination . The instrument applies AC-DC-AC conversion to stabilize voltage amid grid fluctuations. Its SF6 gas-insulated standard capacitor maintains accuracy over time. A touchscreen interface, auto printer, and safety protections ensure ease of use and reliability. Complying with IEC 60247, IEC 247, ASTM D924, and weighing 18–21 kg, it is certified CE & ISO 

Key Features:

• Automatic heating/testing cycle in one operation

• Measures tan δ, capacitance (15–300 pF), and resistivity (10 MΩ–20 TΩ)

• Voltage ranges: AC 400–2200 V, DC 200–600 V ±2%

• Resolution: tan δ 0.001%, Cx 0.1 pF, Rx Δ 0.01

• Precision: Δtanδ ±(1% reading + 0.02%), ΔCx ±(0.5%+0.5 pF), ΔRx ±10%

• High-frequency non-contact inductive heating to <100 °C in <20 min

• Built‑in SF6 standard capacitor, touchscreen, micro‑printer

• Safety interlocks: lid, over‑voltage, short‑circuit, empty-cup detection

• Portable design (≈21 kg), dimensions 450×310×360 mm

• Certified CE, ISO; compliant with IEC 60247, ASTM D924

Product Table (English)

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