Highlight from 2015: Enhancing Insulation Health
through Online Dehydration at PGCIL Moga Substation
At PTss, we continue to lead the way in preventive maintenance practices for high-voltage equipment. One such milestone was the successful online dehydration of a 50 MVAR/400 kV BHEL Line Reactor at the Moga Substation-a strategic intervention that demonstrated measurable improvements in insulation and oil parameters. Small improvements make great impact.
This was achieved using our cartridge-type Transformer Dryout System, without taking the reactor offline-emphasizing efficiency, reliability, and smart grid maintenance practices.
Moisture (PPM): Reduced from 12 ppm to 6 ppm
Insulation Tan Delta: Improved from 0.621 to 0.402
Oil Power Factor: Reduced from 0.02296 to 0.0143
Interfacial Tension: Increased from 28.8 to 31.3 Dynes/cm
Specific Resistivity @ 90°C: Improved from 0.819 × 10¹² to 1.9 × 10¹² Ohm-cm
Pressboard Power Factor (PFP): Reduced from 1.196% to 0.7897%, indicating substantial moisture reduction from insulation
The application of Megger IDAX Tan Delta measurements/FDS and empirical moisture assessment methods helped us validate the impact, aligning with modern asset management protocols. %age RS improvements and %M/DWi improvements wins the trust of our valued customers.
Transformers and reactors don’t just age with time-they degrade silently with moisture. We’re proud to contribute to the longevity and reliability of India’s transmission infrastructure through such data-driven, in-service solutions.
📐 The application of Megger IDAX Tan Delta measurements/FDS and empirical moisture assessment methods helped us validate the impact, aligning with modern asset management protocols. %age RS improvements and %M/DWi improvements wins the trust of our valued customers.
💬 Transformers and reactors don’t just age with time-they degrade silently with moisture. We’re proud to contribute to the longevity and reliability of India’s transmission infrastructure through such data-driven, in-service solutions.