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GDZX Launches ZXR-20A DC Resistance Tester: Redefining Speed and Precision in Global Power Equipment Diagnostics

2025-07-24

Wuhan, China — July 24, 2025 — GDZX Power Equipment Co., Ltd. ("GDZX"), a pioneering force in high-voltage testing solutions based in Wuhan, China, today announced the global release of its ZXR-20A DC Resistance Tester. Engineered to revolutionize transformer maintenance and testing efficiency, this cutting-edge instrument combines breakthrough speed, laboratory-grade accuracy, and rugged field reliability — cementing GDZX’s position as an innovator serving power utilities and industrial partners worldwide.

⚡ Solving Critical Industry Pain Points

Traditional methods for measuring transformer winding resistance (e.g., bridge and voltage-drop tests) are time-intensive and labor-heavy. The ZXR-20A eliminates these bottlenecks with:

Ultra-Fast Measurements: Complete tests in minutes versus hours, slashing downtime during transformer commissioning, maintenance, or tap-changer adjustments.
Multi-Current Flexibility: 6 current ranges (0.2A–40A) cover 100μΩ–100Ω, supporting everything from distribution transformers to 500kV grid units.
Triple-Channel Capability: Test all three phases (A0, B0, C0) simultaneously on star-connected windings — a 70% time reduction versus sequential testing.

Engineering Excellence: Core Innovations

Designed in GDZX’s R&D hub in Wuhan’s East Lake Hi-Tech Zone, the ZXR-20A integrates patented technologies:

Auto-Demagnetization: Prevents residual magnetism from distorting results, ensuring compliance with IEEE/CIGRE protocol.
Advanced Protection: Built-in back-EMF suppression and discharge alarms safeguard operators and equipmen.
Smart Connectivity: 7-inch touch LCD with multilingual UI, USB/RS232 data export, and mobile app control for real-time remote diagnostic.

Key Technical Superiority	ZXR-20A Advantage	Industry Impact
Accuracy	±0.2% full scale + 2 digits	Meets calibration lab standards for grid compliance
Speed	3-phase parallel test in < 2 minutes	Reduces substation outage windows by 85%
Portability	12–15 kg with ergonomic case	Deployable for field crews in remote locations
Data Integrity	Stores 1,000 datasets + cloud export	Enables predictive maintenance analy

GDZX: A Global Partner for Power Infrastructure

With ISO-certified manufacturing and 50+ engineers in Wuhan, GDZX delivers end-to-end support:

Validated Performance: Units certified by CEPRI (China Electric Power Research Institute) and aligned with IEC 60477-1 standards.
Unmatched Warranty: 30-day replacement, 3-year warranty, lifetime technical support with regional spare-part hubs.
Sustainable Design: Energy-efficient switching power supply (<500W) reduces carbon footprin.

"In grid reliability, every minute counts. The ZXR-20A isn’t just a tool — it’s a productivity multiplier for global maintenance teams. With its fusion of speed, safety, and data intelligence, we’re empowering utilities to cut costs while maximizing asset uptime,"
— GDZX Chief Engineer

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GDZX Launches ZXR-20A DC Resistance Tester: Redefining Speed and Precision in Global Power Equipment Diagnostics

⚡ Solving Critical Industry Pain Points

Engineering Excellence: Core Innovations

GDZX: A Global Partner for Power Infrastructure

News

Cases

High Voltage Test Equipment

High Voltage Resonant Test System

Transformer Testing Equipment

Electrical Power Calibrator

Transformer Oil Testing Equipment

Underground Cable Fault Distance Locator