110kV Electrical Transformer: Structure and Strategic Benefits

The 110kV transformer station is an essential part of modern electrical systems, crucial for transmitting electricity to large consumption areas, with benefits of energy savings, low investment costs, and safety.

Concept and Features of the 110kV Transformer Station

The 110kV transformer station is a crucial part of the electrical system, designed with an installed capacity of 2×25 MVA, capable of supplying electricity to large areas. This station is typically installed outdoors in spacious areas and is often not located indoors due to its significant energy savings achieved through voltage increase during transmission.

1. Installation Location and Design

110kV transformer stations are usually installed outdoors in areas with large space and clean environmental conditions, with little dust and smoke. Installing transformer stations in these locations optimizes operation and minimizes risks related to fire and explosion in harsh environments.

2. Structure and Equipment

• 110kV Transformer: is the main equipment of the station, responsible for voltage conversion to minimize losses during transmission.
• Current transformer: this equipment helps reduce alternating current, creating a safe current for measurement and control circuits.
• Electrical protection devices: including circuit breakers, isolators, circuit interrupters, relays, and other protective equipment, ensuring the safety and efficiency of the station.

3. Function and Benefits

The 110kV transformer station provides electricity to large areas, minimizing energy losses during transmission and distribution. This ensures high reliability and low operating costs. The quality of the supplied electricity is also improved, enhancing safety for operators and other electrical devices.

4. Selection and Design

During design and installation, determining load demand is crucial to ensure adequate power supply. In particular, choosing the right reputable installation unit will ensure optimal performance and system safety.

Basic Structure of the 110kV Transformer Station

The 110kV transformer station consists of many core components such as transformers, current transformers, and protective control devices. Transformers convert voltage, current transformers help reduce AC current and protective devices provide maximum electrical safety for operators along with consistently ensured electricity quality.

The 110kV power station plays a key role in the electric power transmission system, with a combination of many technical components optimizing operational efficiency and ensuring safety. Among them, the transformer stands out with its efficient voltage conversion function. The transformer is constructed from a steel core and two coils: primary and secondary, which helps optimize the reduction of energy losses during transmission.

Besides transformers, current transformers also make significant contributions to the station. This device has the ability to reduce alternating current, providing a safe current for measurement and control devices, ensuring precision in system operation.

Another indispensable component is the capacitor voltage transformer. This device controls and measures voltage, helping the system operate according to technical specifications.

The 110kV transformer station also requires protective devices such as lightning arresters to protect against lightning and overvoltage impacts. These devices include insulator tubes and elements such as discharge gaps and nonlinear resistors.

Moreover, isolators and circuit breakers play important roles. Isolators serve to connect and disconnect high voltage circuits when there is no current or very small current, creating the necessary safe distances. Circuit breakers quickly eliminate fault currents, protecting the safety of the system and electrical equipment.

Auxiliary devices in the station include switching devices such as circuit breakers, switches, isolators, and gas or oil circuit interrupters; measurement devices include voltage, current, power meters, and power factor meters. Finally, the protective device system with protective relays, CB and FCO takes on the function of preventing incidents like short circuits, overload, and ground faults.

The installation and design process of the 110kV transformer station needs to note the station’s location, usually near the load center to avoid voltage drops, with preference for outdoor locations to save space and facilitate maintenance.

Benefits and Design Goals of Transformer Station Design 110kV

The 110kV transformer stations save energy, optimize installation and operating costs. The main design goal is to ensure small investment budgets but high reliability, reducing operating costs and maintaining electricity quality.

The 110kV transformer station is a key factor in the electrical system, ensuring safe and uninterrupted electrical conversion and distribution. As the core of the system, 110kV transformer stations not only enhance efficiency but also ensure electrical safety, optimize costs, and expand the capabilities of the electrical system.

Some outstanding benefits include:

1. Ensuring stable electricity supply: The 110kV transformer station is an important link in the power supply chain. It enables stable conversion and distribution of electricity, ensuring the power supply is not interrupted for large load areas.

2. Enhancing system efficiency: The transformer station operates at high efficiency, helping to reduce overload and blackouts, thereby increasing the sustainability and effectiveness of the electrical system.

3. Increased system expansion capability: The design of the 110kV transformer station aims to allow flexible system expansion, meeting the increasing energy demands of consumers and businesses.

4. Energy savings and reduced losses: By optimizing the transmission and distribution process, the transformer station helps reduce energy losses, saving costs and contributing to the overall economic efficiency.

5. Economic efficiency and cost savings: The investment and operating costs of the 110kV transformer station are often lower than other station types, increasing economic benefits for businesses.

6. Safety for Users: With advanced technology, the transformer station operates smoothly and ensures high safety, minimizing risks for people and related equipment.

The design objectives for optimization include:

• Ensuring high-quality power supply: This is the foremost task, providing stable and high-quality electricity to the load is a key factor.
• Optimizing station location: Choosing a strategic location near the load center helps minimize voltage drops and energy losses.
• Design supporting transmission and distribution systems: This not only aids in effective transmission but also increases the efficiency of power distribution.
• Expansion and upgrade capabilities: The station is designed for easy upgrades and expansions, suitable for the trend of increasing energy demand.
• Safety and high reliability: Safe operation with high reliability is a crucial objective to minimize service interruption time.

The 110kV transformer station has also integrated many advanced technologies and automation. Numerical relay systems, such as those provided by brands like ABB and Schneider, offer advanced protection and monitoring functions. This optimizes operation, maintenance, and remote control through modern information systems.

The 110kV transformer station is an important part of the power system, ensuring both electricity quality and optimization of investment and operating costs. With energy-saving and high safety features, it is an efficient solution for large consumption areas.

To optimize your power system with a 110kV transformer station, contact QuangAnhcons via Hotline: 09 1975 8191 for detailed advice.

QuangAnhcons provides professional 110kV transformer station design, installation, and maintenance services, ensuring quality, cost savings, and maximum safety for customers.