Technical Overview of the ZXJYD-IIY Insulation Oil Dielectric Strength Tester

Introduction
      The ZXJYD-IIY Insulation Oil Dielectric Strength Tester represents a fully digital, high-accuracy instrument designed for determining the dielectric breakdown voltage of insulating oils. Developed in accordance with major international and national testing standards (such as IEC 156, GB/T 507, DL/T 429.9), this tester integrates advanced microcontroller technology and robust safety features to deliver reliable and precise assessments of oil quality, which is critical for predictive maintenance and ensuring the operational integrity of electrical equipment like transformers and switchgear.

Core Technical Features & Design Philosophy

1.Intelligent Digital Control: At the heart of the instrument is a high-capacity microcontroller, ensuring stable operation, precise control of the voltage ramp rate (0.5-5.0 kV/s in 10 steps), and immunity to operational crashes via a built-in watchdog circuit.

2.High-Accuracy Measurement Circuit: A distinctive high-voltage sampling design feeds test values directly into an A/D converter, eliminating errors typically introduced by intermediate analog circuits. This results in superior measurement accuracy, specified at ±(2% of reading + 2 digits).

3.Comprehensive Safety & Protection: The system incorporates multiple protective mechanisms against over-current, over-voltage, and short-circuit conditions. Its strong electromagnetic compatibility (EMC) ensures stable performance in electrically noisy industrial environments.

4.Multi-Standard Compliance & Flexibility: Pre-programmed test routines for GB/T 507-1986, GB/T 507-2002, DL/T 429.9, and IEC 156 standards are included. A user-programmable mode allows customization of test sequences (1-9 tests), stir time (0-250s), rest intervals (0-900s), and static discharge time (0-9000s) for specialized requirements.

5.Enhanced Data Management & Usability: The unit features data analysis functions to aid in oil quality judgment. Test data can be exported via optional USB or RS232 interfaces. A bilingual (Chinese/English) interface caters to global technical personnel.

Key Technical Specifications

1.Output Voltage: 0 - 100 kV (selectable models).

2.Voltage Rise Rate: 0.5 to 5.0 kV/s (adjustable in 0.5 kV/s increments).

3.Accuracy: ±(2% of reading + 2 digits).

4.Power Distortion: < 1%.

5.Standard Electrode Gap: 2.5 mm (spherical electrodes).

6.Test Chamber: Fabricated from special glass and polymer materials to prevent leakage and corrosion.

7.Environmental Operating Conditions:

Temperature: 0°C to 40°C

Relative Humidity: ≤ 85%

Power Supply: AC 220V ±10%, 50 Hz ±10%

Power Consumption: < 200W

7.Physical Dimensions: 650mm (L) × 470mm (W) × 410mm (H).

8.Weight: 42 kg.

Conclusion
The ZXJYD-IIY is engineered for reliability, safety, and precision in field and laboratory settings. Its digital core, coupled with direct high-voltage sampling and flexible testing parameters, provides technicians with a trustworthy tool for a critical predictive maintenance task. The instrument’s adherence to multiple standards, robust data handling capabilities, and protective features make it a comprehensive solution for evaluating the dielectric strength and, by extension, the serviceability of insulating oils in high-voltage apparatus.

GDZX is a manufacturer of power detection equipment, offering a diverse range of products with comprehensive models and providing professional technical support. Contact us at +86-27-6552607 or +86-17396104357.Website: http://en.gdzxdl.com/