Wrindu New Transformer DC Resistance Tester
- Wrindu
- Shanghai, China
- about 10 working days
- 1000 set/month
- RDZR-350X
The RDZR-350X Transformer DC Resistance Tester accurately measures DC resistance in large power transformers. It features three-phase testing, magnetic-assisted measurement, and demagnetization functions. With a high-resolution color touchscreen and rotary control, it offers fast, precise, and easy-to-use testing. All measurements can be done in one setup, making it ideal for manufacturing, installation, handover, and preventive transformer testing.
Product Features
1. The instrument supports three-phase measurement of Yn, Y, and △ windings and can automatically calculate the three-phase unbalance rate.
2.Strong testing ability. The maximum output current of the power supply is 50A, with a measurement range of 0-25k Ω, covering the vast majority of transformer testing scenarios, and integrating magnetic assisted and demagnetization functions to meet the diverse needs of the site.
3. Auxiliary judgment of data stability. During the testing process, the resistance value change rate within 5 seconds, 15 seconds, and 30 seconds can be automatically calculated to help testers avoid misreading data.
4. Multiple security measures. It has functions such as 380V misconnection protection, back electromotive force protection, wire breakage protection, and power-off protection. At the same time, it has an alarm function for ungrounded grounding wire, which provides higher safety.
5. Convenient data storage and output. Equipped with a thermal printer, this machine can store 200 groups of data and supports massive storage on USB drives, making it convenient for data retention and subsequent reference.
6. Excellent human-computer interaction experience. Adopting an industrial grade 7-inch true color large screen, the display style is fresh and simple, with full touch and knob mouse operation, making the operation convenient and comfortable.
Product Specifications and Technical Parameters
Item | Description |
Test current output | Single-phase: 50A, 20A, 10A, 5A, 1A, 0.2A, 10mA, <1mA Three-phase: 25A+25A, 10A+10A, 5A+5A, 1A+1A, 0.2A+0.2A |
Resistance measurement range | Single-phase: 75μΩ ~ 0.4Ω @50A 0.5mΩ ~ 1Ω @20A 1.0mΩ ~ 2Ω @10A 10mΩ ~ 4Ω @5A 0.1Ω ~ 20Ω @1A 1.0Ω ~ 80Ω @0.2A 50Ω ~ 2kΩ @10mA 500Ω ~ 25kΩ @1mA Three-phase: 0.1mΩ ~ 0.25Ω @25A+25A 0.5mΩ ~ 0.6Ω @10A+10A 10mΩ ~ 1.5Ω @5A+5A 0.1Ω ~ 7.0Ω @1A+1A 1.0Ω ~ 30Ω @0.2A+0.2A |
Accuracy | ±(0.2%rdg+2dgt) |
Magnetic assisted | When the transformer adopts YN/y or YN/△ wiring, the low voltage side can use the magnetic assisted method for direct resistance measurement. |
Demagnetization | Verify demagnetization. After demagnetization, the residual magnetization value of the transformer can be displayed |
Display | 7.0-inch touch screen, resolution 1024×600 |
Storage | Local storage of 200 pieces of data, supporting FAT or FAT32 format USB extended storage |
Printing: | Equipped with a thermal printer, supporting on-site printing of test results |
Protection functions: | 380V misconnection protection, back electromotive force protection, wire breakage protection, power-off protection, and alarm function for ungrounded grounding wire |
Power supply | AC220V±10%, 50/60Hz |
Operating conditions | Temperature -10 ~ 50℃; Relative humidity<90%, no condensation. |
