Applied Lubrication, Insulation, and Cooling Fluids for Electrical Power Systems provides evidence-based strategies for selecting, applying, and monitoring lubricants, coolants, and insulating fluids in power systems. It addresses the demands of turbines, wind drivetrains, nuclear actuators, and electrified systems, emphasizing fluid reliability as a critical factor in uptime, efficiency and safety. Condition monitoring is presented as a core reliability function, integrating American Society for Testing and Materials (ASTM) and International Organization for Standardization (ISO) test methods with operational data to detect early degradation modes like varnish, additive depletion, and electrical discharge erosion. The book explores viscosity stability, oxidation resistance, dielectric integrity, and thermal conductivity, with detailed coverage of both mineral-based and synthetic chemistries. This book equips professionals to reduce failures, prevent outages, and optimize hybrid and electrified assets, making it invaluable for practicing original equipment manufacturers, maintenance, reliability, and mechanical engineers, condition monitoring specialists and industrial consultants.