Protective relaying provides detection of abnormal operating conditions in electrical systems and is needed in order to act quickly to protect circuits, equipment, and the general public. The theoretical background, as well as practical application, of these protective devices and their protection functions are an important part of the education of power systems for electrical engineers.

Power-utility-grade equipment, Siemens’ newest generation the SIPROTEC 5 series, is used in this innovative teaching approach. Example scenarios are created in the accompanying professional programming tool, DIGSI 5, which allows users to create different setups and simulate possible faults using the built-in relay testing unit. The response of the relay is then analyzed with the relay display and the fault record. This customizable solution allows perfect alignment for individual teaching needs.

The available range of relays and manuals provide coverage of these general topics:

• Overcurrent/Overload Protection

• Directional Protection

• Differential Protection

• Distance Protection