DS EN 50216-3:2002 Power Transformer And Reactor Fittings - Part 3: Protective Relay For Hermetically Sealed Liquid-Immersed Transformers And Reactors Without Gaseous Cushion Pertains to protective relays for hermetically liquid-immersed transformers, complying with the EN 60076/HD 398 series, and reactors, complying with EN 60289, without gaseous cushions for indoor and o