Transformer Testing Instrument
LQHV-10A Transformer DC Resistance Tester
Dual-Purpose Testing Solution
The LQHV-10A delivers 10A maximum current for comprehensive testing of both inductive (transformers/reactors) and resistive (busbars/switches) components. Compliant with DL/T 845.3-2004 standards.
Product Parameters
Technical parameters
| Direct resistance test | |||
| Current gear | Measuring range | Current gear | Measuring range |
| 10A | 500uΩ~200mΩ | 100mA | 10Ω~200Ω |
| 5A | 10mΩ~1Ω | 10mA | 50Ω~2kΩ |
| 1A | 100mΩ~20Ω | 1mA | 500Ω~50kΩ |
| Technical index | |||
| accuracy | ±(Reading x 0.2%+2 words) | Maximum resolution | 0.1uΩ |
| Conditions of use and appearance | |||
| Working power supply | Built-in lithium battery or external charger, charger input 100 ~ 240VAC, 50Hz/60Hz | ||
| Charging voltage | 16.8V | Charging current | ≤2A |
| Charging time | About 4 hours | Service time | More than 8 hours |
| Main engine weight | 3.6kg(excluding test line) | Main engine size | 325×225×125mm3 |
| Service temperature | -10℃~50℃ | Relative humidity | ≤90%, no condensation |
Core Technologies
1. Intelligent Current Selection
Auto-optimizes from 6 current levels
10A output for large power transformers
2. Advanced Temperature Compensation
Automatic resistance-temperature conversion
Ensures comparable results across environments
3. Multi-Layer Protection
Anti-electromotive force circuitry
Wire breakage detection
Overheat alarm with auto-shutdown
User-Centric Features
1. All-Condition Display
5.6" sunlight-readable color LCD
Real-time current/voltage waveforms
2. Flexible Data Management
Onboard storage for test records
USB flash drive export capability
External printer support
3. Field-Ready Design
Compact 3.8kg portable package
4-hour continuous battery operation
IP52 protection rating
Testing Applications
Transformer Manufacturers: Production line QC testing
Utility Companies: Preventive maintenance programs
Industrial Plants: Busbar and switchgear inspection
Repair Centers: Faulty winding identification
Why Choose LQHV-10A?
🔋 Dual power options for any field condition
🌡️ Temperature-compensated results
⚡ 10A output for large transformers
📈 DL/T 845.3-2004 compliant measurements
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