Transformer Testing Instrument
LHV-310 FRA Test Set: Transformer Winding Deformation Analyzer
Industry-leading sweep frequency response analyzer for detecting winding distortion, bulge, shift, and inter-turn shorts in power transformers up to 500kV.
Product Overview
The LHV-310 transformer winding deformation test instrument utilizes Frequency Response Analysis (FRA) technology to assess winding integrity through characteristic parameter measurement. This advanced diagnostic tool identifies:
Radial deformation caused by electromagnetic forces
Axial displacement from transportation impacts
Inter-turn short circuits
Phase-to-phase winding faults
Core Technologies
DDS Digital Sweep Technology
Implements US-developed Direct Digital Synthesis for:
10Hz-2MHz frequency range
0.001Hz resolution
±0.1dB amplitude accuracy
High-Precision Measurement
Dual-channel 16-bit A/D conversion
Software-adjustable output (1-10V peak)
99.5% test repeatability rate
Key Features
Advanced Connectivity
USB 2.0 + Bluetooth interfaces for seamless PC communication
Environmental Durability
Conformal coated PCB resistant to moisture and corrosive gases
Comprehensive Analysis
Auto-generates Word reports with linear/log frequency axis options
Product Parameters
scanning way：(The instrument has a linear sweep measurement system and a segmented sweep measurement system )
| Linear sweep distribution | Sweep measuring range | (1kHz)～(2MHz) |
| Sectional sweep measurement distribution | Sweep measuring range | (0.5kHz)～(1MHz) |
| (0.5kHz)～(10kHz) | ||
| (10kHz)～(100kHz) | ||
| (100kHz)～(500kHz) | ||
| (500kHz)～(1000kHz) |
| Range of amplitude | (-100dB)～(+20dB) |
| Accuracy of amplitude measurement | ±1dB |
| Sweep accuray | 0.01% |
| signal input impedance | 1MΩ |
| signal output impedance | 50Ω |
| In phase test repetition rate | 99.5% |
| Dimensions | 300×340×120mm3 |
| Dimensions of Aluminum Alloy Packaging Box | 310×400×330mm3 |
| Weight | 10kg |
Application Scenarios
Pre-commissioning Verification: Baseline FRA signature recording
Post-Fault Analysis: Short-circuit impact assessment
Preventive Maintenance: Annual winding condition monitoring
Transportation Inspection: Mechanical displacement detection
Compliance Standards
Meets international requirements for:
IEC 60076-18 Power transformer testing
IEEE C57.149 Winding deformation guide
DL/T 911-2016 Chinese power industry standard
For technical datasheets or demonstration requests, please contact our power diagnostics specialists.
