Our Product Range
Comprehensive portfolio of electrical test equipment for transformers, circuit breakers, CT/PT, SF6 gas, and insulating oil diagnostics.
GDVA-405 CT PT Analyzer
Automatic Current Transformer and Potential Transformer Tester with advanced protection and measurement algorithms.
- • Full automatic testing of CT/PT characteristics
- • High accuracy up to 0.05%
- • Built-in thermal printer and USB interface
- • Complies with IEC 60044 standards
GDYJ-502A BDV Tester
IEC156 Automatic 80kV Transformer Oil Breakdown Voltage (BDV) Tester for insulation oil quality assessment.
- • Fully automatic operation
- • 80kV max output voltage
- • Touchscreen interface with data storage
- • Complies with IEC 60156, ASTM D877
ZJA High Vacuum Oil Purifier
High Vacuum Transformer Oil Filtration Machine for removing moisture, gases, and particles from insulating oil.
- • Flow rate up to 6000 L/h
- • Ultimate vacuum ≤ 5 Pa
- • Multi-stage filtration system
- • PLC control with touch HMI
Partial Discharge Detector
Advanced PD detection system for transformers, cables, and GIS switchgear with real-time monitoring.
- • UHF & TEV sensing options
- • On-site and online monitoring
- • Noise rejection algorithms
- • Portable and fixed configurations
Transformer Turns Ratio (TTR) Tester
Precision TTR measurement with high stability and fast response for all types of transformers.
- • Wide measurement range
- • Automatic polarity detection
- • High immunity to interference
- • Data logging and export
Water Content Tester
Karl Fischer Titration-based moisture analyzer for transformer oil with high precision and repeatability.
- • Detection range: 1ppm to 100%
- • Automatic titration control
- • Touchscreen interface
- • Complies with ASTM D1533
GDGS Tan Delta Tester
Automatic Insulation Power Factor (IPF) and Tan Delta Tester for assessing insulation condition of transformers.
- • 0.1% basic accuracy
- • Variable test voltage (0.5–10kV)
- • Harmonic analysis capability
- • Anti-interference design
DC Resistance Tester
High-current micro-ohmmeter for measuring transformer winding resistance with fast discharge protection.
- • Output current up to 50A
- • 5-digit resolution
- • Automatic demagnetization
- • Data storage and USB export
GDGK-307 Circuit Breaker Analyzer
Fully automatic switch dynamic contact resistance and timing tester for all types of circuit breakers.
- • 12-channel timing measurement
- • 200A high current output
- • Travel curve analysis
- • Bluetooth and USB connectivity
SF6 Gas Reclamation System
Complete SF6 gas handling unit for purification, recovery, and filling of GIS and circuit breakers.
- • Recovery rate up to 100 L/min
- • Final vacuum ≤ 1 mbar
- • Integrated compressor and filter
- • Automatic operation mode
VLF Hipot Tester
Very Low Frequency withstand voltage tester for cables and rotating machines with built-in diagnostics.
- • 0.1 Hz VLF output
- • Tan delta and PD measurement
- • Lightweight and portable
- • Automatic test sequences
Transformer Test Bench
Integrated multi-function test system combining TTR, Tan Delta, DC Resistance, and OLTC testing.
- • All-in-one solution
- • Centralized control software
- • High safety interlocks
- • Customizable configurations