Technical Overview of the ZXJYD-III Insulating Oil Breakdown Voltage Tester

Introduction

The ZXJYD-III Insulating Oil Breakdown Voltage Tester is a sophisticated instrument designed for accurately determining the dielectric strength of insulating oils, a critical parameter in assessing the health and serviceability of electrical equipment like transformers and switchgear. This technical overview details its core features, operational principles, and specifications, providing engineers and technicians with essential knowledge for its effective application.

Core Features & Design Philosophy

The tester is engineered for reliability, accuracy, and user convenience in field or lab environments. Its design incorporates several key features:

1.Stable Control System: At its heart, a high-capacity single-chip microcomputer ensures stable and reliable control over the testing process.

2.Robust Operation: An integrated wide-range watchdog circuit prevents system halts, guaranteeing completion of tests without unexpected interruptions.

3.Flexible Testing Modes: It supports multiple operational standards, including the two primary Chinese national standards (GB/T 507-1986 and GB/T 507-2002), alongside customizable user-defined protocols to meet diverse testing requirements.

4.Enhanced Measurement Accuracy: A unique high-voltage sampling design feeds signals directly into an A/D converter, bypassing potential errors inherent in traditional analog circuits. This results in more precise and reliable breakdown voltage readings.

5.Comprehensive Safety Protections: The unit incorporates over-voltage, over-current, safety limit, and grounding alarm functions, safeguarding both the operator and the equipment during high-voltage testing.

6.Durable Test Cell: It utilizes a one-time-formed seamless molded glass test cup, eliminating risks of oil leakage.

7.Portability: Designed to be portable, it facilitates easy transportation and use in various indoor and outdoor settings.

Technical Specifications

The performance of the ZXJYD-III is defined by the following technical indicators:

Technical Application Notes

For technicians, understanding these specifications is crucial for proper setup and interpretation. The selectable voltage ramp rates allow compliance with different standard methods, influencing the breakdown value. The low voltage distortion (<1%) ensures a pure sinusoidal test waveform, a prerequisite for accurate results. The wide operating temperature and humidity range adds to its robustness for field testing. The 1.5 kVA booster capacity and 80 kV range make it suitable for testing a wide variety of insulating oils.

Conclusion

The ZXJYD-III Insulating Oil Breakdown Voltage Tester represents a blend of precise digital control, robust safety features, and operational flexibility. Its design prioritizes direct, accurate measurement and reliability under various conditions. For technical personnel involved in the maintenance and diagnostics of high-voltage electrical assets, this instrument provides a trustworthy means to perform a fundamental yet vital test on insulating oil, thereby contributing to predictive maintenance strategies and overall system reliability.

 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/