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. 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 configurations. Easy to consume. ABB Relays-Online makes finding, selecting, ordering, and tracking of your next digital substation product order quick and easy. The modular e-business platform is the one place where you will find most of the needed functionality to take your daily power distribution protection and control. This handbook covers the code of practice in protection circuitry including standard lead and device numbers, mode of connections at terminal strips, colour codes in multicore cables, dos and donts in execution. Professional engineers can earn 2 PDHs by completing this course. This course is part of a multi-part course series about one of the main. The relay is a well known and widely used component. Applications range from classic panel built control systems to modern interfaces between control microprocessors and their power circuits or any application where reliable galvanic separation is required between different circuits.