Transformer Load and No Load Tester
- Wrindu
- Shanghai, China
- about 25 days
- 5000 set/month
- RDBK-III
Transformer Load and No-Load Tester for precise measurement of low voltage short-circuit impedance in 35kV+ transformers, featuring advanced microcomputer technology, portable design, and efficiency enhancement.
Descrption
The transformer load and no-load tester is a specialized device designed to measure key parameters of transformers, including no-load loss, load loss, short-circuit impedance, and zero sequence impedance. It is particularly useful for low voltage short-circuit impedance testing of main transformers with a voltage rating of 35kV and above, in both on-site and laboratory settings.
This tester stands out for its sophisticated design, exceptional performance, and comprehensive functionality. It leverages cutting-edge single-chip microcomputer testing technology, along with advanced A/D synchronous AC sampling and digital signal processing technology, to deliver highly accurate measurement data.
The user-friendly interface of the transformer load and no-load tester features a large screen color LCD display and menu prompts, making operation simple and straightforward. It is also equipped with a high-speed thermal printer and a storage function, allowing for convenient data storage and printing. Moreover, the stored data can be easily transferred to a computer via USB.
With its compact size, light weight, and portability, this tester is ideal for on-site use, significantly reducing the physical strain on testing personnel and enhancing overall work efficiency.
Features
Versatile Impedance Measurement: The device is equipped to measure single-phase, three-phase, and zero-sequence impedance (with neutral connection), providing a full spectrum of impedance analysis.
Intelligent Calculation: It automatically computes the impedance voltage percentage at rated temperature and current, as well as the deviation from the manufacturer’s specified impedance, ensuring precise performance assessment.
Enhanced Data Comparability: Test results are automatically adjusted for frequency, temperature, and current, ensuring that data across different tests remains consistent and comparable.
Flexible Power Options: The instrument operates on either an internal power supply or an external single-phase voltage regulator, accommodating a variety of power sources.
Broad Measurement Range: With a wide range for voltage and current measurements, the device offers high accuracy, suitable for diverse transformer testing needs.
User-Friendly Interface: A large, 7.0-inch touch screen simplifies operation, making it easy for technicians to navigate and input data.
Robust Data Storage: The built-in non-volatile memory can store up to 160 sets of data, ensuring that test results are securely saved for future reference.
On-Demand Printing: A high-speed micro thermal printer is integrated into the device for immediate printing of measurement data.
Precise Timekeeping: A high-precision clock is included for real-time time display, adding convenience to the testing process.
Convenient Data Transfer: The USB storage function allows for easy transfer of data to a computer, facilitating further analysis and record-keeping.
Parameters
| Voltage range | 15V ~ 500V (PT extension), accuracy: ±(0.2%rdg ±0.05%f.s) |
Current range | 0.5A ~ 15A (internal), accuracy: ±(0.2%rdg ±0.05%f.s) 0.5A ~ 50A (external) (can CT extension), accuracy: ±(0.2%rdg ±0.05%f.s) |
Impedance range | 0 ~ 100% |
| Power factor | 0.02 < Cos φ < 0.1, accuracy: ±(1.0%rdg ±0.05%f.s) Cos φ ≥0.1, accuracy: ±(0.5%rdg±0.05%f.s) |
| Frequency measurement | 45 ~ 65Hz |
| Resolution | 5 significant digits |
| Ambient temperature | -10°C to 50°C |
| Ambient humidity | ≤85℅RH, non-condensing |
| Operating power supply | AC220V ±10% |
