Edvard Csanyi’s Post

This article delves into the intricacies of low voltage automatic transfer schemes at substations. We will explore the design and implementation of these systems, providing detailed insights into various ATS components and their functions. The discussion begins with an overview of the AC supply single line diagram, which forms the backbone of any power distribution network. We then examine the 250kVA diesel generator supply incoming panel, a crucial element for backup power in emergency situations. The functionality and importance of the low voltage bus coupler are also analyzed, highlighting its role in enhancing the flexibility and reliability of the power distribution system. Interlocking mechanisms within the low voltage substation auto transfer scheme are scrutinized, emphasizing their importance in preventing conflicting operations and ensuring safe and efficient switching. The operations of auto transformer schemes, including automatic, manual, and off operation selections, are thoroughly discussed to provide a comprehensive understanding of their practical applications. Read more https://lnkd.in/dVzaZd_F

This article delves into the intricacies of low voltage automatic transfer schemes at substations. We will explore the design and implementation of these systems, providing detailed insights into various ATS components and their functions. The discussion begins with an overview of the AC supply single line diagram, which forms the backbone of any power distribution network. We then examine the 250kVA diesel generator supply incoming panel, a crucial element for backup power in emergency situations. The functionality and importance of the low voltage bus coupler are also analyzed, highlighting its role in enhancing the flexibility and reliability of the power distribution system. Interlocking mechanisms within the low voltage substation auto transfer scheme are scrutinized, emphasizing their importance in preventing conflicting operations and ensuring safe and efficient switching. The operations of auto transformer schemes, including automatic, manual, and off operation selections, are thoroughly discussed to provide a comprehensive understanding of their practical applications. Read more https://lnkd.in/du2P6zEB

This article delves into the intricacies of low voltage automatic transfer schemes at substations. We will explore the design and implementation of these systems, providing detailed insights into various ATS components and their functions. Within this framework, the Low Voltage Bus Coupler acts as a bridge, facilitating the synchronization and transfer of power between different busbars. Interlocking mechanisms further enhance the safety and reliability of these systems, ensuring that operations proceed smoothly without the risk of power conflicts or overloads. The discussion begins with an overview of the AC supply single line diagram, which forms the backbone of any power distribution network. We then examine the 250kVA diesel generator supply incoming panel, a crucial element for backup power in emergency situations. The functionality and importance of the low voltage bus coupler are also analyzed, highlighting its role in enhancing the flexibility and reliability of the power distribution system. Interlocking mechanisms within the low voltage substation auto transfer scheme are scrutinized, emphasizing their importance in preventing conflicting operations and ensuring safe and efficient switching. The operations of auto transformer schemes, including automatic, manual, and off operation selections, are thoroughly discussed to provide a comprehensive understanding of their practical applications.

Substations are equipped with low voltage power supplies, often referred to as auxiliary supplies, which are provided by auxiliary transformers. There may be one or more auxiliary transformers within a substation. Given the critical nature of substation operations, redundancy is essential to ensure a backup option if the auxiliary supply fails. One approach to achieve redundancy is by installing two auxiliary transformers. In the event of a failure of one transformer, the other can continue to supply power. These auxiliary transformers receive their power from distribution transformers, which are, in turn, powered by the main power transformer. For instance, in a 132/11kV substation, the voltage is stepped down from 132kV to 11kV by the power transformer and then from 11kV to 400V by the distribution transformer. In the specific case of the substation under review, which has only one 132kV feeder, a fault or maintenance on this line would lead to a complete power failure at the substation.

How to ensure proper operation of substation components? Well, let’s say that substations play a pivotal role in the seamless and safe transmission of electrical power. Ensuring the proper operation of various components within substations is of paramount importance to both personnel safety and the integrity of the entire electrical system. To achieve this, substations are equipped with a comprehensive interlocking scheme, which is a critical safety measure in this high-voltage environment. How to ensure sequential operation for safety? The primary purpose of interlocking within substations is to enforce a specific sequence of operations. This sequence ensures that all disconnectors, fixed earthing switches, or other interlocked devices, and, when necessary, circuit breakers, are operated in the correct order. Read more https://lnkd.in/dS5R3wPM

Three-phase Voltage Transformer (VT) supervision operates based on the principle of measuring changes in voltage (ΔV) and current (ΔI) across all three phases. In the event of a three-phase fault within the electrical system, there is a simultaneous drop in voltage and a rapid increase in current due to the fault. This can be expressed mathematically: during a three-phase fault, both voltages and currents experience changes, meaning that ΔV and ΔI are both present. However, there are scenarios where only the three-phase voltages decrease, and there is no corresponding increase in current.

How to ensure proper operation of substation components? Well, let’s say that substations play a pivotal role in the seamless and safe transmission of electrical power. Ensuring the proper operation of various components within substations is of paramount importance to both personnel safety and the integrity of the entire electrical system. To achieve this, substations are equipped with a comprehensive interlocking scheme, which is a critical safety measure in this high-voltage environment. How to ensure sequential operation for safety? The primary purpose of interlocking within substations is to enforce a specific sequence of operations. This sequence ensures that all disconnectors, fixed earthing switches, or other interlocked devices, and, when necessary, circuit breakers, are operated in the correct order. Read more https://lnkd.in/dudExNJN

🔌 Excited to share my latest article featured on EEP! 📝 Dive into the world of high-voltage circuit breakers with me as we explore "The Implications of Circuit Breaker Pole Discrepancies on Substation Operation." Discover the mechanics behind pole discrepancies, their impact on system reliability, and the challenges they pose in conventional technologies. Let's unravel the complexities together and enhance our understanding of network topologies. Check it out! #Electrical #SubstationOperation #CircuitBreakers #Power #Substation #Protection https://lnkd.in/dBbXT554

How to ensure proper operation of substation components? Well, let’s say that substations play a pivotal role in the seamless and safe transmission of electrical power. Ensuring the proper operation of various components within substations is of paramount importance to both personnel safety and the integrity of the entire electrical system. To achieve this, substations are equipped with a comprehensive interlocking scheme, which is a critical safety measure in this high-voltage environment. How to ensure sequential operation for safety? The primary purpose of interlocking within substations is to enforce a specific sequence of operations. This sequence ensures that all disconnectors, fixed earthing switches, or other interlocked devices, and, when necessary, circuit breakers, are operated in the correct order.

In Figure below, we are presented with a scenario where the push button S1 is pressed, initiating the energization of the bi-stable relay coil A1-A2. As a result of this energization, several changes occur within the relay’s contacts, contributing to the alteration of the circuit’s state. Firstly, the normally open contact 13-14 of the bi-stable relay changes its position from open to closed. This transition allows electrical current to flow through the contact, enabling the completion of a specific circuit or the activation of downstream components.