Services
What services does EWT offer to customers?
EWT’s dedicated teams of skilled experts are always prepared to provide any assistance regarding transformer servicing & maintenance. As an OEM manufacturer, EWT is fully equipped with the personnel and capabilities to conduct:
1. Yearly Routine Maintenance:
- Visual Inspection / Functional
- Bushing conditions
- Oil leaks
- Rusty tanks
- Oil level
- Tap changer operation
- Electrical Test
- Ratio test
- Insulation resistance
- Winding resistance
- Transformer "Blood Test"
- Oil Dielectric Breakdown Voltage (IEC 60156)
- Oil Moisture Content (ASTM D1533B)
- Dissolve Gas Analysis (ASTM D3612)
- Interfacial Tension - IFT (ASTMD971)
- Color Number & Visual Exam (ASTM D1524)
- Acid Number (ASTMD974)
- Power Factor (IEC60156)
2. Servicing your Transformer (on-site)
- Gasket change
- Spare parts change
- Oil filtration
- Transformer paint touch up
- Tanks leak repair
3. Transformer Overhaul (Major work - at factory)
- Tank change
- Oil change
- Winding change
- Refurbishment of the transformer unit
- Routine test