Tan Delta Tester
- GDGS Automatic Transformer IPF Insulation Power Factor Tester, Transformer Tan Delta Tester
- GDMZ 10kV Transformer Capacitance Tan Delta Test Kit IPF Insulation Power Factor Test Set
- GDGS Anti Interference Transformer Capacitance and Dissipation Factor Test Set
- 10kV Transformer Dielectric Loss Tester