"Our mission is to apply deep engineering knowledge and practical utility experience to ensure the long-term health and reliability of your power transformer assets."
Factory Acceptance Tests (FAT)
The Factory Acceptance Tests (FAT) are the final and most comprehensive quality checkpoint for a new power transformer. Our independent, expert witnessing service ensures that this high-value asset adheres precisely to your design specifications, purchase agreement, and mandatory international standards (e.g., IEC, IEEE).
SENS acts as your on-site quality assurance team, providing an objective, unbiased assessment of the testing process, data acquisition, and results interpretation. Our global availability means we can mobilize experts to any manufacturing facility worldwide to safeguard your investment.
Electrical Performance Tests Verifying Core Specifications: Ensuring ratio, polarity, and phase displacement meet requirements. Checking load and no-load losses are within guaranteed tolerance, and impedance is correct.
Temperature Rise Test Confirming Thermal Design: Closely monitoring winding and oil temperature rise under rated load conditions to ensure the thermal design complies with standards and prevents premature aging.
Dielectric (Insulation) Tests Ensuring System Integrity: Witnessing lightning impulse, switching impulse, AC withstand and induced voltage tests to confirm the insulation system can handle expected stresses without failure.
Mechanical & Auxiliary Checks Reviewing Physical Quality: Checking paint, tank integrity, weld quality, dimensions, and proper functioning of cooling systems, tap changers, and control cabinets.