The Relays-Online training center offers you the information you need to get started with your protection and control products, as well as step-by-step guidance towards programming your products' functionality by creating and editing protection and control logics and. The Relays-Online training center offers you the information you need to get started with your protection and control products, as well as step-by-step guidance towards programming your products' functionality by creating and editing protection and control logics and. As a Relay Protection Engineer, your work in relay testing and commissioning is critical to ensuring system safety and continuity. In this comprehensive article, we delve into the best practices, challenges, and innovative solutions in relay testing and commissioning, placing a strong emphasis on. Once you complete your course review, you need to take a multiple-choice quiz consisting of fifty (50) questions to earn 10 PDH credits This course is intended to provide you with the following specific knowledge and skills: Download the Course to review and begin earning your PDH credits. We. This is the most comprehensive online training of Testing Commissioning Protection Relays. Here you will learn all thing about RED 670 and REF 615 RED 670 and REF 615 are the most common type of Protection Relays that you will find on the electrical network, due to their effectiveness and. This happens because the main function of protection devices is related to operation under fault conditions so these devices cannot be tested under normal operating conditions. It addresses basic testing terminology as well as various tests including factory production, type tests, commissioning and maintenance tests. Although failure of a protective relay system may have severe local or regional impacts, most protective relay systems are not required to operate to prove they are in working order.