Contractor of 5000kVA Substation Quanganhcons: Advanced and Efficient Solutions

Quanganhcons is a professional contractor in the design, construction of substations with a capacity of 5000kVA, applying advanced technology solutions and adhering to high technical standards.

In December 2024, QuangAnhCons marked a significant milestone with the successful completion and energization of the 5000kVA ( 2x2500kVA ) transformer station located at Lot 67d and 67e, Nguyen Ai Quoc Street, Nhon Trach II – Loc Khang Industrial Park, Hiep Phuoc Commune, Nhon Trach District, Dong Nai Province, Vietnam. This project was undertaken for RVN Fibers Company Limited to ensure stable and long-term power supply for their production needs.

Read more: Completion of 2x2500kVA Transformer Station at Nhon Trach II Industrial Park

At Quanganhcons, we always place transparency and customer trust at the forefront of our operations. You can explore our proven construction capabilities through our official media channels:

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With this multi-platform presence, clients gain a clear and reliable view of our construction expertise, service quality, and long-term commitment to every partnership.

Specifications of the 5000kVA Substation

The 5000kVA substation of Quanganhcons uses an oil transformer with a capacity of 5000kVA, voltage 22/0.4kV, stacked core technology. Technical characteristics include no-load current 2%, short-circuit voltage 4%, and frequency 50Hz, suitable for industrial zones and large factories that require stable and efficient power sources.

The 5000kVA substation plays a crucial role in providing stable power to industrial zones and large factories. To achieve optimal efficiency, understanding detailed technical specifications is essential.

Capacity and Technology

This substation has a rated capacity of 5000 kVA, while the winding technology utilizes stacked core with enameled copper or aluminum wire. The silicon steel core is used to minimize eddy currents due to its superior magnetic conductance. The standard operating frequency is 50 Hz.

Rated Voltage

The common rated voltage for the high-voltage side is 22kV or 35kV, and for the low-voltage side, it is 0.4 kV or 6.6 kV. Notably, the common winding configuration is Dyn11, ensuring reliability and power efficiency.

Energy Loss

• No-load loss (Po) ranges from 4980W to 11,000W depending on the type of transformer.
• Short-circuit loss (Pk) is between 39,500W and 53,000W.
• No-load current (Io) varies from 1.0% to 2.0%.
• Short-circuit voltage (Uk) ranges from 4% to 7%.

Dimensions and Weight

For dry transformers, the standard dimensions are approximately 2400mm (length) x 1800mm (width) x 2390mm (height). The winding weight of copper is about 11,150 kg, while aluminum winding is about 10,000 kg.

Technical Standards, Testing, and Safety

International and Vietnamese standards applied include IEC 60076, IEC 60851, TCVN 6306. The rated frequency test voltage is 50/20 kV, and the impulse test voltage is 125/60 kV. Overload capability is tested according to IEC 60905 standards, ensuring the transformer operates safely and efficiently.

Characteristics and Notes on Operation and Maintenance

The thin silicon steel core reduces energy loss, while the winding design ensures electrical durability and high thermal resistance. Open-type transformers are designed to limit noise and improve durability. For maintenance, the substation should be placed in a dry, impact-free location.

Understanding these technical specifications helps leaders and engineers make reasonable decisions in designing and operating the electrical system.

Advantages and Comprehensive Technical Solutions of Quanganhcons

Quanganhcons implements substation designs to reduce energy loss, save investment costs, and protect the environment. The company uses equipment from renowned brands like ABB and Schneider, Mitsubishi, LS….., enhancing operational efficiency, ensuring durability, and safety for the system.

Quanganhcons has affirmed its position in the field of industrial electrical system design and construction with stringent technical standards. Notably, the company excels in providing comprehensive solutions, from design to periodic maintenance, helping to maintain continuous and efficient operations.

One of the biggest advantages is the experience and high expertise of the team. The engineers and technicians of Quanganhcons are not only well-trained but also have many years of experience, meeting strict technical requirements and complex international standards. This ensures that all implemented industrial electrical systems achieve optimal performance.

To improve efficiency and safety, Quanganhcons focuses on the design and construction of low and medium voltage electrical systems and substations with reasonable costs. The focus on safety solutions and cost optimization not only helps customers save but also enhances production quality.

Modern technology is an indispensable part of Quanganhcons’ activities. The company actively applies AI technology, digitization, automation, and especially the SCADA remote control system. These solutions help reduce power cuts and optimize maintenance processes, ensuring stable operation for digital substations.

The underground electrical solutions and construction of industrial substations up to 35kV of Quanganhcons are also highly appreciated, not only enhancing the aesthetics of urban areas but also increasing the safety and stability of the electrical system.

A highlight in Quanganhcons’ service is the ability to provide comprehensive M&E solutions, including both heavy and light electrical systems. By integrating automatic control and sensor solutions, the company not only optimizes performance but also significantly saves energy.

Periodic maintenance is one of the important factors that Quanganhcons emphasizes to ensure the system always operates efficiently and sustainably. These activities are carried out according to a specific plan, and are also part of the company’s renewable energy development strategy. Quanganhcons invests heavily in solar energy and fast electric vehicle charging services, in line with the current green industrial trend.

Prominent in technical solutions, Quanganhcons designs digital substations with intelligent SCADA control technology, minimizing costs and enhancing reliability. The application of advanced design software like REVIT MEP and BIM ensures accuracy and efficiency in construction. Automation and sensor technology in the electromechanical system are also an essential part of maintaining performance and reducing energy consumption.

Construction Process and Maintenance Services

Quanganhcons applies a strict process for the design, construction, and maintenance of substations. The company focuses on electrical safety standards and ensures equipment has full quality certification. Quanganhcons provides a comprehensive construction service, with various types of substations and certified materials with clear origins.

In the field of energy and construction, implementing the Construction Process and Maintenance Services is essential to ensure the efficiency and safety of the system. Starting from the installation of electrical and water systems, crucial steps are followed strictly to ensure maximum sustainability and safety.

• Installation of protective conduits and electrical cables:

• The use of items like trunking, ladder, exposed conduits to protect cables and set paths for electrical wires is the first step in the electrical and water construction process. This not only helps manage the wiring system effectively but also enhances safety levels.

• Pulling electrical cables according to the design diagram:

• Pulling electrical cables accurately according to the design diagram minimizes possible risks like electrical short circuits. Wire connections should be made within plug boxes or light trough boxes for easier repairs.

• Installing electrical panels and control devices:

• According to the design drawings, electrical panels and control boards should be installed to not only meet technical standards but also ensure harmony with the rest of the system.

• Connection, testing, and acceptance of the system:

• Before delivery, the system must go through connection, testing, and acceptance stages to identify and adjust potential issues. Operation testing ensures the system operates according to the correct technical standards and electrical safety regulations.

• Construction of the water pipe system:

• Completing the supply and drainage pipe system in accordance with the design drawings ensures proper drainage slopes and tightness to prevent leaks.

• Underground electrical construction measures:

• For underground electrical construction, ensuring the stability of underground conduits through cement or concrete fixing is important. It should be noted that the conduit ends need to be smooth, and the connection distances meet technical standards to prevent damage during construction completion.

• Safety rules during construction:

• Safety measures like careful concrete drilling, using expansion screws when installing cable trays, and ensuring threaded rods are installed in line are crucial to not affect load-bearing structures.

Besides the construction part, the maintenance process is also indispensable to maintain the effectiveness of the electrical and water systems:

• Periodic inspection: Evaluate the condition of wiring systems, electrical devices, and carry out maintenance or replacement when there are damages.
• Regular cleaning and maintenance: Helps the system operate stably and extends its lifespan.
• Electrical safety checks: Conduct according to regulations to ensure safety during use.

Quanganhcons provides technical solutions and investments for the 5000kVA substation, optimizing safety and performance for large enterprises. The integration of quality equipment and rigorous processes helps businesses quickly take advantage of modern technology in energy management.

Contact QuangAnhcons now via Hotline: +84 9 1975 8191 for optimal 5000kVA substation solutions consultation.

QuangAnhcons is a reputable contractor providing design, construction, and maintenance services for substations, especially 5000kVA substations. We ensure equipment quality meets standards and the implementation process is safe, saving costs for customers.