The LDZRC-320 DC Resistance Tester is a high-precision testing equipment specialized in measuring the DC resistance of transformers. This tester integrates magnetic assisted testing, three-phase testing (Yn, Y, △), and demagnetization functions, and is suitable for rapid measurement of DC resistance of Yn, Y, and △ winding transformers. The LDZRC-320 adopts a true color large screen high-resolution LCD display, with touch control and shuttle knob operation, making it easy and intuitive to operate. The tester has high output current, wide testing range, high precision, and multiple protection functions, making it an ideal tool for measuring the DC resistance of transformers in power systems.
| Output Current | Single Phase: 20A, 10A, 5A, 1A, 0.2A, 10mA,<1mA |
| Three Phase: 10A+10A, 5A+5A, 1A+1A, 0.1A+0.1A | |
| Measurement Range | Single Phase: Gear 20A - 0.5mΩ～ 1 Ω; Gear 10A - 1.0mΩ～ 2 Ω; Gear 5 A - 10 mΩ～ 4 Ω; Gear 1 A - 0.1Ω～ 20Ω; Gear 0.2A - 1.0Ω～ 100Ω; Gear 10mA - 50Ω～ 2kΩ; Gear<1mA - 500Ω～ 25kΩ |
| Three Phase: Gear 10A + 10A - 0.5mΩ ～ 0.6 Ω; Gear 5 A + 5 A - 10 mΩ ～ 1.5 Ω; Gear 1 A + 1 A - 0.1 Ω ～ 7.0 Ω; Gear 0.2A+0.2A - 1.0 Ω ～ 30 Ω | |
| Accuracy | ±(Accuracy×0.2%+2) |
| Power Supply | AC220V±10%, 50/60Hz |
1. The appearance of the product is subject to the actual product. Technical parameters and models are subject to change without prior notice. 2. To learn more about Longdian products, please enter the product center. Service Hotline: 400-6727-238
Multi functional integration: integrating magnetic assistance testing, three-phase testing (Yn, Y, △), and demagnetization functions to meet the rapid measurement needs of various types of transformer DC resistance.
High output current: The maximum output current of the test power supply can reach 20A, with a testing range of 0-25k Ω, meeting the testing needs of the vast majority of transformers.
High precision measurement: The measurement accuracy is as high as ± (reading x 0.2%+2 words), ensuring the reliability of the test results.
Automatic calculation of change rate: The testing process can automatically calculate the resistance value change rate within 5 seconds, 15 seconds, and 30 seconds to assist the testing personnel in judging the stability of the test data.
Multiple protection functions: It has multiple protection functions such as back electromotive force protection, wire breakage protection, and power-off protection, ensuring the safety and reliability of the testing process.
Portable design: Industrial grade 7-inch true color large screen display, touch and one click shuttle operation, small size, light weight, easy to carry, suitable for on-site use.
Data storage and printing: The instrument is equipped with a thermal printer, which stores 200 pieces of data locally and supports massive storage on USB drives, making it convenient for users to manage and analyze data.
Wide applicability: Suitable for measuring DC resistance of various types of transformers, including single-phase and three-phase transformers, meeting the needs of preventive testing in the power sector.
