HZ-3110B 10A Transformer DC Winding Resistance Test Device
Huazheng HZ-3110B 10A Transformer DC Winding Resistance Tester
I. Introduction
The Huazheng HZ-3110B is a microprocessor-controlled 10A transformer DC winding resistance tester featuring up to 24V high-compliance output, automated back-EMF discharge, and an intuitive 7-inch sunlight-readable touchscreen. Specifically engineered for rapid resistance measurement and unbalance rate calculation on power transformers, instrument transformers, and large inductive coils in strict accordance with IEC 60076-1 and IEEE C57.12.90.
II. Key Features
Mobile Control & Data Management
Operate via dedicated mobile app; store data in standardized formats for real-time access and analysis.
High Current Output (24V Max)
Supports larger test currents to accelerate measurement speed.
Advanced Power Technology
Multi-current ranges for wide applicability across medium-to-large transformers.
Comprehensive Protection
Built-in safeguards against back-EMF, wire disconnection, power failure, and overheating with audible alarms.
Material Temperature Conversion
Convert resistance values for copper/aluminum windings at any input temperature.
Energy-Efficient Operation
Intelligent power management minimizes energy consumption and heat generation.
User-Friendly Interface
7-inch high-brightness touchscreen (sunlight-readable), bilingual support (CN/EN).
Data Storage & Management
Internal clock and 1,000-dataset storage with instant retrieval.
Multi-Platform Connectivity
Bluetooth, RS232, USB for PC communication and U-disk data export.
Integrated Printing
Onboard micro-printer for immediate test reports.
III. Technical Specifications
| Parameter | Value |
|---|---|
| Output Current | Auto / <20mA / 40mA / 200mA / 1A / 5A / 10A |
| Resolution | 0.1 μΩ |
| Measurement Ranges | |
| - 10A Range | 0.5 mΩ – 0.8 Ω |
| - 5A Range | 1 mΩ – 4 Ω |
| - 1A Range | 5 mΩ – 20 Ω |
| - 200mA Range | 100 mΩ – 100 Ω |
| - 40mA Range | 1 Ω – 500 Ω |
| - <20mA Range | 100 Ω – 100 kΩ |
| Accuracy | ±(0.2% + 2 digits) |
| Operating Temp. | 0°C to 40°C |
| Ambient Humidity | ≤90% RH (non-condensing) |
| Dimensions | 360 × 290 × 170 mm |
| Weight | Main Unit: 6 kg; Test Leads: 5 kg |
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