Welcome to Sairaj Groups comprehensive OLTC service overview. This technical presentation showcases our complete range of On Load Tapchanger services, including precision-machined OLTC spare parts, custom RTCC panel integration, and full lifecycle engineering support. Operating from our ISO 9001:2015 certified manufacturing facility in Bhosari MIDC, Pune, India, we maintain strict adherence to international transformer standards including IEC 60214-1 and IEEE C57.131. Our specialized services cover diverter switch overhauls, selector switch alignment, high-vacuum transformer oil filtration, dynamic resistance testing, and 24/7 emergency breakdown assistance across all major industrial electrical networks. Whether servicing ABB, Maschinenfabrik Reinhausen (MR), Siemens, or BHEL tap changers, Sairaj Groups delivers OEM-grade reliability and extended equipment lifespan.