Transformer Testing Includes:

  • Insulation Resistance Tests (Megger Tests)
  • Power Factor Tests (2- 10kv test sets and 1 - 2.5 KV test set– Doble & Biddle equipment)
  • Turns Ratio Tests
  • DC Winding Resistance Testing
  • Scan Frequency Response Analysis (Doble 5200)
  • Leakage Reactance Winding Tests (Doble M4110)
  • Auxiliary Equipment Tests
  • Field Oil Screening for Dielectric Strength, Moisture, IFT, Power Factor, & Neutralization Number
  • Oil analysis thru local lab
  • Testing Done in Accord with NETA Standards

Doble equipment used by IET includes the M2H-MCM power factor set and the 5200 SFRA set. All equipment is owned and calibrated on an annual basis.

Transformer Maintenance:

  • Bushing Replacements
  • Leak Repairs and Re-Gasketing
  • Vacuum Filling
  • Oil Processing
  • Assembly / Disassembly for Relocation
  • Fan Upgrades including Control
  • Nitrogen Blanket Cabinets