Detailed Training On The Construction, Basic Theory, Maintenance, & Testing Of Power Transformers

Course Contents:

1. The basic theory of transformers
2. Operation of the transformers
3. Comprehensive Offline Testing of the transformers

• Insulation Resistance measurements-
• Polarization Index-
• Insulation resistance core- ground-
• Turn Ratio-
• Winding Resistance measurements-
• Excitation current measurements-
• Capacitance and Dielectric Dissipation Factor (or Power Factor) of winding at line frequency (50HZ)
• Capacitance and Dielectric Dissipation Factor (or Power Factor) of winding at variable frequency (15-500HZ)
• Capacitance and Dielectric Dissipation Factor (or Power Factor) of HV Bushings at line frequency (50HZ)
• Capacitance and Dielectric Dissipation Factor (or Power Factor) of HV Bushings at variable frequency (15-500HZ)
• Leakage Reactance (Short Circuit Impedance)
• Frequency Response of the Stray Losses (FRSL)
• Sweep Frequency Response Analysis

4. DGA – Dissolved Gas Analysis and important oil quality testing
5. Maintenance of the transformers test
   • Oil Centrifuging
   • Oil Regeneration
   • OLTC maintenance
   • Thermography
   • Leakage Current monitoring
6. The latest trend in testing and condition monitoring