Protection and Control of High Voltage Power Circuits

In this comprehensive section, we will delve into the intricate principles of protection and control of high voltage power circuits, ensuring a thorough understanding of this critical topic. My discussion will cover a wide range of essential subjects, including HV bus differential protection, system faults, differential protection, high voltage circuit breakers, and transfer and remote tripping. By exploring these key areas, I aim to equip you with the knowledge and expertise necessary to navigate the complexities of high voltage station operations.

HV Bus Differential Protection and its Challenges

To begin our exploration, we will closely examine HV Bus Differential Protection, a vital aspect of high voltage station protection. This analysis will shed light on the challenges associated with this type of protection, particularly the impact of CT saturation and mis-match. Furthermore, we will introduce the concept of "Restraint Differential Protection" as a viable solution to address these challenges effectively.

Understanding System Faults and Switchyard Configuration

Moving forward, we will delve into the intricacies of system faults and their profound influence on switchyard configuration and elements. With a specific focus on the concept of "Differential Protection," we will explore how system faults can impact the overall functioning of high voltage stations. Additionally, we will address the critical issues of mal-operation caused by CT saturation and mis-match, providing valuable insights into mitigating these concerns.

Examination of High Voltage Circuit Breakers

One of the key components of high voltage stations is the circuit breaker, which plays a crucial role in protecting the system from faults and ensuring its smooth operation. In this module, we will embark on a comprehensive exploration of various types of circuit breakers, including Oil, Vacuum, Air Blast, and SF6. Moreover, we will delve into the intricate controls associated with these circuit breakers, such as Closing, Tripping, and anti-pumping mechanisms. 

Additionally, we will introduce the Reclosure Syncrocheck relay CUH 90 – VG, a cutting-edge technology that enhances the efficiency and reliability of circuit breakers. Furthermore, we will discuss Breakers Failure Protection and provide an overview of Dynamic Monitoring Equipment, highlighting their significance in maintaining the optimal performance of high voltage circuit breakers.

Transfer, Remote Tripping, and Ground Rise Potential

In the final segment of our comprehensive module, we will address the crucial aspects of transfer and remote tripping in high voltage stations. Emphasizing the paramount importance of providing immunity from ground rise potential and open circuit voltage situations, we will explore the measures and strategies employed to ensure the safe and efficient operation of these systems. By thoroughly understanding these concepts, you will be well-equipped to navigate the challenges associated with transfer and remote tripping, ensuring the integrity and reliability of high voltage stations.

In conclusion, this course aims to provide a clearer and more structured explanation of the protection and control of high voltage circuits. By delving into the intricacies of HV bus differential protection, system faults, high voltage circuit breakers, and transfer and remote tripping, I have provided a comprehensive overview of these critical topics. 

If you require further clarification or have any specific questions, please do not hesitate to reach out. I am are here to assist you in your journey towards mastering the principles of high voltage station protection and control.

1. Engineers
2. Technologists
3. Technicians
4. Supervisors
5. Students.

1. The various protection concepts were well described using animated visual aids that helps the student process the information better ~ Willie L
2. Very good course and very clear. The course content flowed well ~ W Shisler
3. The words I would use to express my gratitude for this great course are not sufficient to reflect how valuable this course for all deep knowledge seekers. This man presented a world class knowledge that you cannot easily find on the internet but he made sure it is combined in one course with all information needed to tackle those technicalities with great skills and profound understanding of the subject being discussed. I think this man for his time and sincere effort to raise and elevate the skills of the global community of students! ~ H Al Radhwan
4. Perfect match, straight forward and to the point. Thanks ~ Gonzalo

1. Here we deal with the protection & control principles of high voltage stations. HV Bus Differential Protection is studied along with restrictions due to CT saturation & mis-match and its solution, “Restraint Differential Protection” System Faults; Switchyard Configuration & Elements; The DESN Station (Duel Element
2. System Faults; Switchyard Configuration & Elements; The DESN Station (Duel Element Spot Network); HV Bus Differential Protection; CT Saturation & Mal-operation of Bus Protection; CT Saturation & Restraint Differential Protection; Westinghouse KD - 4 Relay; Surge Protective Devices; Fuses; DC Protection; Logic Differential Protection; The Modern IED Relays (Intelligent Electronic Device); Overview HV Circuit Breaker Types (Oil, Vacuum, Air Blast, SF6); HV Circuit Breaker Controls (Closing & Tripping); HV Circuit Breakers; Reclosing (Syncrocheck CUH 90 – VG Relay); Dynamic Monitoring Equipment (DME); Impedance Relaying (POTT)

A solid background in electrical circuitry.