Course Content
Earthing System of Switchyards
An earthing system is a crucial component in switchyard design, providing a safe path for the dissipation of fault currents and ensuring the protection of equipment and personnel. A well-designed earthing system minimizes the risk of electrical shock, prevents equipment damage, and maintains the stability and reliability of the power system.
0/5
Objectives of Earthing in Switchyards
00:00
Components of an Earthing System
00:00
Design Considerations
00:00
Installation Practices
00:00
Maintenance of Earthing Systems
00:00
Lightning Protection of Switchyards
Lightning protection is a critical aspect of switchyard design and operation. It involves safeguarding switchyard equipment and infrastructure from the damaging effects of lightning strikes. Effective lightning protection ensures the reliability and continuity of power supply while protecting personnel and equipment from potential hazards.
0/3
Key Components of Lightning Protection Systems
00:00
Design Considerations for Lightning Protection
00:00
Installation Practices
00:00
Switchyard Control and Interlocking
Switchyard control and interlocking systems are vital components of electrical substations. They ensure safe, reliable, and efficient operation by managing the flow of electricity and preventing hazardous situations. Control systems provide centralized management and monitoring, while interlocking systems prevent unsafe operations that could lead to equipment damage or personnel injury.
0/4
Switchyard Control Systems
00:00
Interlocking Systems
00:00
Design Considerations for Control and Interlocking Systems
00:00
Implementation and Maintenance
00:00
PROFESSIONAL TRAINING OF SUBSTATION DESIGN (CONTROL, PROTECTION AND FACILITY PLANNING)
About Lesson

Switchyard Control Systems

Switchyard control systems manage the operation of various electrical components, such as circuit breakers, transformers, and isolators. These systems are essential for the effective monitoring, control, and automation of switchyard activities.

  1. Supervisory Control and Data Acquisition (SCADA) Systems

    • Function: SCADA systems allow operators to monitor and control switchyard equipment remotely.
    • Components:
      • Master Terminal Unit (MTU): The central control unit located at the control center.
      • Remote Terminal Units (RTUs): Field devices that gather data from switchyard equipment and send it to the MTU.
      • Communication Network: Facilitates data transfer between RTUs and the MTU.
    • Capabilities:
      • Real-time data acquisition and visualization.
      • Remote operation of breakers and switches.
      • Alarm and event management.

  2. Programmable Logic Controllers (PLCs)

    • Function: PLCs automate control tasks within the switchyard, such as operating circuit breakers and managing transformer tap changers.
    • Programming: PLCs are programmed using languages like Ladder Logic, Function Block Diagram (FBD), and Structured Text (ST).
    • Integration: PLCs can be integrated with SCADA systems for comprehensive control and automation.

  3. Human Machine Interface (HMI)

    • Function: HMIs provide a graphical interface for operators to interact with the switchyard control system.
    • Design: Includes real-time displays of switchyard status, control commands, and alarm notifications.
    • User Interaction: Allows operators to perform manual operations and acknowledge alarms.

  4. Communication Protocols

    • Standards: Common protocols include IEC 61850, DNP3, and Modbus.
    • Purpose: Ensure reliable communication between control system components and facilitate interoperability.
Previous
Next

Join Our Community

Enter your email address to register to our newsletter subscription delivered on regular basis!