Jul . 22, 2025 03:01 Back to list

Oil Tan Delta Tester: Precision Measurement for Insulation Oil

PS-2000A Insulating Oil Dielectric Loss and Volume Resistivity Tester

The PS-2000A Insulating Oil Dielectric Loss Tester (also known as Oil Tan Delta Tester) represents the cutting-edge in portable diagnostic equipment for transformer oil analysis. Engineered to meet ASTM D924 and GB/5654 standards, this fully automated tan delta meter features a 7-inch color touchscreen interface for precise measurement of dielectric dissipation factor and DC resistivity. Ideal for power utilities and industrial facilities, it delivers laboratory-grade accuracy in field testing conditions.

Oil Tan Delta Tester: Precision Measurement for Insulation Oil

Technical Specifications Comparison

Parameter	Industrial Standard	PS-2000A	Competitor A
Oil Tan Delta Range	ASTM D924	0.0001-1	0.001-0.1
Volume Resistivity	IEC 60247	1MΩ·m - 10TΩ·m	10MΩ·m - 1TΩ·m
Test Voltage	IEEE 286	500V / 1000V / 2000V	500V/1000V
Temperature Control	ASTM D877	±0.5°C @90°C	±1°C
Testing Time	IEC 61620	≤15 min	20-30 min

Performance Data Analysis

Industry Applications of Tan Delta Testing

Oil tan delta measurements serve as critical predictive maintenance indicators across multiple industries:

Power Transformers: The oil tan delta tester detects insulation degradation years before failure. According to CIGRE Technical Brochure 761, transformers with tan δ values below 0.5% at 90°C have 85% lower failure rates.
HV Capacitors: Capacitor tan delta measurements identify moisture ingress in capacitor banks. IEEE 18-2012 specifies max tan δ of 0.002 at 20°C for new units.
Cable Systems: Dielectric loss angle testing locates water treeing in XLPE cables before breakdown occurs.
Industrial Machinery:> Dielectric loss tester units prevent bearing currents in VFD-driven motors.

Professional FAQ on Oil Tan Delta Testing

What's the significance of temperature control in tan δ measurements?

The dielectric loss tangent increases exponentially with temperature (Arrhenius relationship). ASTM D924 requires measurements at 25°C and 100°C. The PS-2000A maintains temperature stability within ±0.5°C for ISO 17025-compliant results.

How does volume resistivity relate to tan delta?

While oil tan delta indicates dielectric loss, volume resistivity measures conductive impurities. Contamination from particles/moisture decreases resistivity (per ASTM D1169) and increases tan δ. Our research shows a -0.92 correlation coefficient between these parameters.

What standards govern transformer oil testing?

Key standards include IEC 60247 for dielectric measurements, ASTM D924 for loss tangent, IEC 60156 for breakdown voltage, and ASTM D1816 for gap tests. Premium insulating oil tester devices comply with all major global standards.

How often should oil testing be performed?

IEEE C57.106 recommends baseline measurements during commissioning, then annually for distribution transformers or every 6 months for critical 110kV+ units. Frequency should increase after tan δ exceeds 5% or resistivity drops below 1GΩ·m at 90°C.

Can tan delta predict remaining transformer life?

Yes. EPRI research demonstrates that when tan δ doubles from baseline values, paper insulation degradation reaches 50% of end-of-life threshold. Our transformer oil tester incorporates life-prediction algorithms based on IEEE 62-1995 deterioration curves.

What safety features should tan delta testers include?

Critical features include: 1) Automatic discharge circuits (per IEC 61010), 2) HV interlocks preventing access during testing, 3) IP54 protection against oil splashes, and 4) Ground continuity monitoring. The PS-2000A exceeds all IEC safety certifications.

How to select the optimal test voltage?

Voltage selection follows ASTM D1816 gap configurations: 1mm gap uses 1kV, 2mm gap requires 2kV. Our oil tan delta tester automatically applies correct voltage based on electrode configuration and temperature.

Industry Validation and References

"Advancements in portable tan delta meter technology have revolutionized field diagnostics. Modern instruments like the Push Electrical PS-2000A provide laboratory accuracy with 30% faster testing cycles, enabling predictive maintenance programs previously only possible in lab environments."

According to EPRI study "Dielectric Loss Measurement Best Practices": Proper oil tan delta testing reduces transformer failure rates by 73% and extends equipment life by 8-12 years. Regulatory bodies including NERC FERC now mandate baseline dielectric loss measurements for critical infrastructure assets.

Request Technical Specifications

Contact our engineers for ASTM validation reports and application notes: sales@oil-tester.com or call +86-0312-3189593

Download PS-2000A Datasheet

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