SIEMENS SIPROTEC_05 7SJ [[Feeder Protection Relay Testing]]

Settings Application and Relay Configuration – SIEMENS DIGSI 5 Software

By the end of this course, you will have the deep knowledge and high practical skills required to confidently work with Siemens SIPROTEC 5 (7SJ) feeder protection relays in real-world substation protection.

What you’ll learn

• Understand the Protection System Requirements.
• Diagnose and prevent critical commissioning mistakes that impact grid stability and system reliability..
• Feeder Protection Theory..
• Overcurrent Protection.
• Earth Fault Protection.
• Circuit Breaker Failure.
• The IEC Inverse Characteristics Equations..
• Simulation by Secondary Injection of Overcurrent (50/51) Protection..
• Simulation by Secondary Injection of Earth fault (50N/51N) Protection..
• Simulation by Secondary Injection of Under Voltage Protection..
• Simulation by Secondary Injection of Overvoltage Protection..
• Simulation by Secondary Injection of Circuit Breaker Failure Protection..
• Simulation by Secondary Injection of Under Voltage Protection..
• Disturbance Records Extracting, Comprehending and Analyzing.
• Relay Configuration.
• CFC Chart.

Course Content

• Introduction to Relay Software and Global Settings and Configuration –> 8 lectures • 1hr 19min.
• Relay Hardware Testing –> 1 lecture • 14min.
• Relay Settings Application and Testing[OC-EF-UV-CBF] –> 9 lectures • 1hr 26min.
• How to draw a Single Line Diagram on Relay Display –> 1 lecture • 19min.
• Relay Disturbance Recorder –> 1 lecture • 7min.
• Important Notes –> 1 lecture • 9min.

Requirements

By the end of this course, you will have the deep knowledge and high practical skills required to confidently work with Siemens SIPROTEC 5 (7SJ) feeder protection relays in real-world substation protection.

You will start by understanding the structure and functionality of modern numerical relays, followed by a solid foundation in feeder protection theory. This includes mastering essential protection functions such as overcurrent (50/51) and earth fault (50N/51N) protection, along with under-voltage protection schemes used in power systems.

The course will also guide you through circuit breaker failure protection, helping you understand its importance in ensuring system reliability and fault isolation. In addition, you will learn how to read and apply IEC inverse time characteristics, enabling proper coordination between protection devices.

On the practical side, you will gain hands-on insight into relay parameterization and configuration, as well as performing secondary injection testing to simulate real fault conditions. This will help you bridge the gap between theory and field application.

Finally, you will develop the ability to extract, analyze, and interpret disturbance records, allowing you to diagnose faults and improve system performance like an experienced protection engineer. Safety practices during inspection and maintenance are also covered to ensure professional and secure field operations.