HVHIPOT DRM-20S Three Phase DC Winding Resistance Meter 20A High Quality

• Customization: Available
• After-sales Service: yes
• Warranty: 1 year
• Model NO.: DRM-20S
• Display Type: Digital Only
• Certification: ISO
• Customized: Customized
• Output current: Single: 20A, 10A, 5A, 1A, 0.1A, 10mA, <1mA
• Min. resolution: 0.1Micro Ohm
• Weight: about 9kg (without test cables)
• Display: 7-inch large, industrial-grade
• Transport Package: Standard Export Wooden Box
• Specification: 401mm×314mm×224mm
• Trademark: HV Hipot
• Origin: China(Mainland)

Product Description

HVHIPOT 2025 New DRM-20S Three Phase DC Winding Resistance Meter

Product Description

The DRM-20S three-phase DC winding resistance meter is a precision device that measures winding resistance to efficiently diagnose potential problems such as coil material defects, poor welding, loose connections, and broken wires. It integrates magnetic assist testing, three-phase testing (Yn, Y, and △ types), and demagnetization functions to fully meet the measurement needs of various winding structures.

Equipped with the Suhui Smart Quick (Software Copyright Registration No. 1010215, Trademark Registration No. 14684781), it streamlines operation processes and data handling through intelligent automation, providing critical support for quality control throughout the equipment's lifecycle.

Widely applicable to inductive loads such as transformers, mutual inductors, and reactors, it is also suitable for resistive test objects like copper busbars, wires, and switch contacts.



Application

1. Welding quality of winding contact
2. Turn-to-turn short circuit of winding
3. Contact of tap changer

Features

 

1. An innovative solution that allows for full testing with a single wiring connection, improving on-site testing efficiency.

 

1. Flexible switching between multiple modes, including single- and three-phase Yn-type simultaneous testing and three-phase Y-type and △-type phase-by-phase testing, meets diverse testing needs.

 

1. Three-phase automatic testing and precise calculation of three-phase imbalance ratios provide quantitative winding performance data, enabling accurate analysis of test results.

 

1. Yn winding neutral point lead wire resistance testing minimizes deviations from single-phase test standards and enhances data reliability.

 

1. Built-in demagnetization and assist functions provide core technical support for test data accuracy.

 

1. Equipped with a 7-inch full-touch smart screen with a 400cd/m² high-brightness display, the device offers smoother touch operation and a clearer viewing experience.

 

1. Supports fixed and automatic outputs, accurately adapting to the test product's resistance value and empowering the device with adaptive adjustment capabilities.

 

1. Multiple protection mechanisms, including power failure, back EMF, and disconnection, provide a robust safety barrier for the device and testers. 9. Integrated smart printing function makes test result output more efficient and convenient.

Product Parameters

 

Output current	Single: 20A, 10A, 5A, 1A, 0.1A, 10mA, <1mA Three phase: 10A+10A, 5A+5A, 1A+1A, 0.1A+0.1A
Measurement range	Single phase	20A: 0.5mΩ~1Ω 10A: 1.0mΩ~2Ω 5A: 10mΩ~4Ω 1A: 0.1Ω~20Ω 0.1A: 2Ω~200Ω 10mA: 50Ω~2kΩ <1mA: 500Ω~25kΩ
	Three phase	10A+10A: 0.5mΩ~0.8Ω 5A+5A: 10mΩ~1.6Ω 1A+1A: 0.1Ω~8.0Ω 0.1A+0.1A: 2.0Ω~80Ω
Accuracy	±(reading * 0.2% + 2 digits)
Resolution	0.1μΩ
Power supply	AC 220V±10%, 50Hz/60Hz±1Hz
Display	7-inch large, industrial-grade, high-brightness color LCD
Operation temperature	-10~50ºC
Humidity	<90%RH (no condensing)
Dimension	401mm×314mm×224mm
Weight	9kg