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Home / Download Center / Electrical Engineering Books and Technical Guides / Power substation guides / Hardware, standards and schemes required for digital substations

Substation transformation

Revolution in information technology brought enormous influence on electrical power system by the application of intelligence in metering, protection, monitoring and control. New communications made possible to monitor and control in real time, from a central place, by SCADA for the operation of power generation, transmission and distribution.

Digital Substation and Case Study of Tata Power
Digital Substation and Case Study of Tata Power (photo credit: merko.ee)

A hierarchical structure exists in the transmission and distribution of power since the power is received at a high voltage level in a substation and delivered to a load center through another substation at reduced voltage level.

These substations are being transformed from hardwired configurations to a networked platform by leveraging the technological advancements. The technological transformations have brought within its purview comprehensive automation of substation.

This paper brings out the current trend in communication & systems in substation automation along with its benefits for improving quality and reliability of the power system.

This paper talks on all the required hardware, standards and schemes pertaining to the digital substations thus evolved, where the information acquisition, transmission and its processing is completely digitized.

Also, this paper highlights the case study of a real time process control scheme.

Architecture for a Digital Substation
Architecture for a Digital Substation

Need for automation

The economic growth and development of a country depends heavily on the reliability of electric power supply. Generally, rigorous planning is done for addition of the generation and expansion of the transmission networks.

However, the distribution system have generally grown in unplanned manner resulting in high technical and commercial losses to poor quality of power.

Efficient operation and maintenance of distribution system are hampered by non-availability of system topological information, current health information of distribution components such as distribution transformers, feeder historical data etc.

Another reason includes the lack of efficient tools for operational planning and advance methodology for quick fault detection, isolation and service
restoration etc.

All these lead to the increase system losses, poor quality and reliability of power supply in addition to the increase in demand.

Title: Hardware, standards and schemes required for digital substations (and Case Study of Tata Power) – Kedar Kasarpatil, Tanmay Karadkar and Asawari Dudwadkar at International Journal of Emerging Technology and Advanced Engineering
Format: PDF
Size: 662.4 KB
Pages: 8
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Hardware, standards and schemes required for digital substations
Hardware, standards and schemes required for digital substations

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