Transformer Maintenance

Global Testing Services is equipped to handle any Transformer requirements from routine maintenance to emergency repairs. We supply the following:

• Online Filtering
• Repairing Online and Offline Tap Changers
• Overhauling
• General Maintenance

• Repairing and Testing Protective Devices
• Testing and Commissioning
1. Dissipation Factor Tests
2. Frequency Response Analysis
3. Leakage Reaction
4. Ratio
5. Winding Resistance
6. Insulation
7. Voltage Recovery
8. Partial Discharge Testing
• Testing of Insulating Oil

Oil Laboratory Services

Global Testing Services send all Oil Samples to a high quality laboratory for oil analysis and testing. These tests can include:

• Interfacial Surface Tension
• Furan
• Acidity
• Moisture
• Quality Index Number
• Dissolved Gas Analysis
• Dielectric Breakdown
• Dielectric Loss Angle and Resistivity
• Polychlorinated Biphenyls (PCB’s)
• Condition Monitoring and Trending