On-Line Tap Changer Filtration Systems

LTC Oil Filtration Systems for Continuous Purification

We leverage decades of technical expertise to deliver custom solutions that deliver various performance benefits:

• Continuous on-line filtration for maximum uptime: Our systems operate as a continuous “kidney loop,” constantly circulating and purifying the oil within the LTC compartment. This on-line capability keeps the transformer energized during maintenance, reducing operational downtime.
• Advanced multistage particulate removal: The multistage filtration process captures harmful contaminants, from larger carbon particles to fine metallic particulates, minimizing abrasive erosion and extending the operational life of the LTC’s mechanical components.
• Restoration of dielectric strength: Select systems incorporate vacuum dehydration and degasification technology. This process removes dissolved moisture and harmful gases from the oil, restoring its dielectric strength to optimal levels. Maintaining high dielectric integrity can help prevent internal flashovers and ensure the oil provides insulation.
• Automated low-maintenance operation: Equipped with programmable logic controller (PLC) controls and sensors, our solutions operate autonomously to maintain oil quality. The system continuously monitors its own performance and alerts personnel only when manual intervention, such as a filter change, is required. This intelligent design minimizes the need for manual oversight.
• Robust design: We house our solutions in an all-weather enclosure designed for permanent installation on the transformer. This construction provides a long-term solution to LTC oil contamination, integrating seamlessly into your transformer tap changer maintenance strategy.