What is Wrindu Oil Dielectric Strength Tester?
Wrindu Oil Dielectric Strength Tester ensures accurate oil testing for electrical equipment. It features microcomputer control, advanced safety, and data analysis functions.
The RDJJD-100kV Oil Dielectric Strength Tester is a cutting-edge tool designed to measure the dielectric strength of insulating oils used in electrical equipment. This tester is essential for ensuring that insulating oil, which is critical for the operation of power systems, railway systems, and large petrochemical plants, remains effective in maintaining electrical insulation and preventing equipment failure.
Key Features of Wrindu Oil Dielectric Strength Tester
| Feature | Description |
|---|---|
| Microcomputer Control | Controlled by a high-capacity single-chip microcomputer, ensuring stable and precise performance. |
| Temperature and Humidity Display | Includes temperature, humidity, and clock display with optional infrared oil temperature measurement. |
| Watchdog Circuit | Equipped with a wide-range watchdog circuit to prevent crashes and ensure smooth operation. |
| IEC156 and Self-Programming Modes | Offers flexible modes for users, including the IEC156 standard and self-programming operation. |
| High-Quality Oil Cup | Made of special glass and high polymer materials, finely processed to prevent oil leakage and corrosion. |
| Advanced Voltage Sampling | Uses high-voltage sampling design to ensure accurate readings by eliminating errors from analog circuits. |
| Safety Features | Includes over-current, over-voltage, short-circuit, and other protection functions for added safety. |
| Bilingual Support | Supports both Chinese and English, making it suitable for international use. |
| Data Analysis Function | Built-in data analysis to assist in evaluating oil quality and making informed decisions. |
Technical Specifications of Wrindu Oil Dielectric Strength Tester
| Parameter | Value |
|---|---|
| Booster Capacity | 1.5 kVA |
| Step-Up Speed | 0.5 kV/s to 5.0 kV/s (10 selectable gears, error ±0.2 kV/s) |
| Output Voltage | 0 to 100 kV |
| Voltage Accuracy | 2% reading + 2 words |
| Power Distortion Rate | Less than 1% |
| Electrode Gap Standard | 2.5 mm |
| Test Times | 1 to 9 times (optional) |
| Static Release Time | 0 to 9000 seconds (optional) |
| Interval Rest Time | 0 to 900 seconds (optional) |
| Mixing Time | 0 to 250 seconds (optional) |
Why Choose the RDJJD-100kV Oil Dielectric Strength Tester?
The RDJJD-100kV Oil Dielectric Strength Tester is an essential tool for any enterprise using insulating oils in their equipment. Whether you’re testing oils in power transformers, electrical equipment, or industrial machinery, this tester offers accuracy, reliability, and user-friendly features that help ensure safety and performance. Regular testing with this instrument can detect potential problems early, reducing the risk of costly failures and downtime.
By offering high-precision measurements and a range of customizable settings, this tester ensures that insulating oils maintain their effectiveness and continue to protect your equipment for years to come. If you’re looking for a reliable, easy-to-use dielectric strength tester, the RDJJD-100kV is an excellent choice for your needs.
FAQs
What is the primary purpose of an oil dielectric strength test?
To ensure electrical safety and prevent equipment failure by identifying contaminants. Regular testing detects moisture, acids, or foreign particles that weaken the oil’s insulating properties, helping to avoid short circuits or explosions in transformers.
How does the tester perform the measurement?
The tester gradually increases the voltage until a spark jumps between two submerged electrodes. The voltage at the moment the spark occurs is recorded as the breakdown voltage (BDV).
What international standards govern these tests?
The key standards are IEC 60156 and ASTM D1816. These ensure accurate testing of insulating oils, with ASTM D1816 commonly used for high-purity oils and ASTM D877 for simpler tests, like those for oil in its original state.
How often should insulating oil be tested?
It should be tested at least twice a year for critical equipment. Standard practice involves testing mineral oil annually to monitor degradation due to thermal and electrical stress.
What are the key features of a modern tester?
Modern testers feature automation, high-precision diagnostics, and advanced connectivity. These often include automatic test sequences, Bluetooth or USB for data logging, and a high voltage range up to 100 kV.
What are the acceptable Breakdown Voltage (BDV) limits?
BDV should typically be above 30 kV for in-service oil and 50-70 kV for new oil. If the value is below 30 kV, the oil is considered to have significantly degraded and poses a high risk of failure.
How do ASTM D877 and ASTM D1816 differ?
ASTM D1816 is more sensitive to moisture and particulates than ASTM D877. ASTM D877 uses flat-disk electrodes and is often used for simpler applications, while ASTM D1816 uses VDE electrodes and continuous stirring, offering more accurate results for high-precision testing.
What factors most commonly skew test results?
Factors like moisture, temperature, and improper sampling can cause inaccurate readings. Moisture drastically lowers dielectric strength, and temperature can affect the results, so tests are standardized at 20-25°C.
What should be done if an oil sample fails the test?
First, resample the oil to rule out contamination. If the failure is confirmed, perform diagnostic tests (such as moisture or acidity analysis) and consider using filtration or replacement if the oil is too degraded.
What are the safety requirements for operating a tester?
Safety features include high-voltage interlocks, automatic discharge, and proper grounding. These features help ensure the tester is safe to use and that the stored energy is discharged after each test.
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