Quanganhcons is a professional contractor in the field of electrical system construction and transformer stations in Gia Lai. The company excels in services from design, construction to operation, meeting industrial and residential needs.
Comprehensive Transformer Station Construction Services
Quanganhcons provides construction services for various capacity transformer stations, from 1000kVA stations to large-scale projects like the 2500kVA station at Long Hau 3 Industrial Park. This service includes legal procedures to acceptance testing, ensuring stable operation.
Comprehensive transformer station construction service is the optimal solution for the electricity consumption needs of industrial parks, residential, and commercial areas. With diverse construction coverage, we offer design and installation solutions for industrial transformer stations, both indoors and outdoors. Customers can choose from medium and low voltage stations with capacities from under 100kVA to over 1500kVA, along with different voltage levels such as 22kV, 35kV, 110kV, 250kV, 400kV, 500kV, up to 1000kV depending on project requirements.
A strength of this service is the professional design and consulting of transformer stations, ensuring compatibility with customer capacities and usage requirements. This not only helps optimize investment costs but also enhances electrical energy efficiency.
The construction process is methodically implemented and strictly follows electrical engineering standards, labor safety standards, and legal regulations. This ensures the absolute safety for both the project and the users. Furthermore, all materials and equipment used for transformer stations have clear origins with CO-CQ certification from well-known brands such as Thibidi, EMC, ABB, Mitsubishi, Cadivi, LS, Eaton, and Schneider.
This electrical construction service not only stops at the transformer station installation phase but also supports customers throughout the entire process, from licensing procedures to completing the project acceptance documents. Customers also benefit from warranty and periodic maintenance services for transformer stations, ensuring stable and long-lasting operation.
With advantages such as cost savings, time efficiency, and reduced technical risks, comprehensive transformer station construction service has become the first choice in industrial, residential, and commercial construction projects, meeting the demand for stable and efficient energy.

Design and Operation of Electric Systems
Quanganhcons services range from design to the operation of electric systems, ensuring stable and sustainable power supply for both industrial and residential sectors.
Main Components of the National Electric System
- Power Sources: Power plants ensure the energy for the system, including hydro, thermal, renewable energy such as solar and wind power. The diversification of power sources plays an important role in efficient power operation.
- Transmission and Distribution Grid: The system is composed of high and ultra-high voltage lines, such as 110 kV, 220 kV to 500 kV, along with transformer stations playing a key role in power grid technology.
- Electricity Consumers: Households and businesses use electricity for production and living activities.
Electric System Design
- The design of electric systems is implemented based on multiple voltage levels to meet optimal operational requirements.
- Components such as high voltage lines and intermediate transformer stations are arranged to minimize losses and ensure safety during transmission.
- Backup factor and reliability are carefully calculated to ensure continuous operation and energy security is not interrupted.
Operation of Electric Systems
- The power regulation process from power plants is optimized to suit the consumption demand at each time, with sources like solar and hydropower contributing significantly to maintaining balance.
- The operation of the electric system requires strict management of the current on transmission lines, while SCADA technology is used to monitor and control activities in real-time.
Role and Impact of Electric Systems
- The electric system not only provides continuous energy for production and life but also ensures safety for national defense and communication activities.
- The integration of renewable energy sources, emission reduction and pollution are important strategies in sustainable development.

Medium and Low Voltage Grid Solutions
Quanganhcons provides comprehensive solutions for the construction of medium and low voltage grids, including underground grid solutions, to enhance the stability and efficiency of the power source.
Medium and low voltage grids play an important role in improving the reliability, safety, and operational efficiency of electric systems serving residential areas, industries, and urban areas. Modern solutions are being implemented, including the application of smart grids and digital technology.
Medium Voltage Grids:
- To minimize the risk of line overloads, medium voltage lines are operated under 50% load. This also contributes to increasing equipment longevity.
- Each line serves 5,000-6,000 customers within a radius of no more than 8 km, ensuring coverage and efficiency in power supply.
- Establishing a power supply structure from two 110 kV transformers to increase reliability for each customer.
- Loop connection for 110kV and 22kV grids enhances flexible operation capability and timely fault handling.
- Medium voltage transformer stations (22kV, 35kV) are installed according to IEC and TCVN standards. Using digitized transformer station technology with integrated intelligent monitoring helps efficiently monitor power, improve power quality and reduce operation costs.
- With a strategic role in industrial parks, medium voltage grids ensure safety and stability in supplying electricity for production.
Low Voltage Grids:
- Low voltage transformer stations are designed to serve about 60-65% load, with the capability to supply power to no more than 300 customers within a maximum radius of 300 m.
- Optimizing the line system, thereby minimizing faults and adjusting voltage suitable for usage demand.
- Applying automation technology to power grids and remote control helps enhance operational efficiency, precise power monitoring, and improve power quality supplied.
Modernization and Smart Grids:
- The application of smart grids with electronic, telecommunications technology, and real-time data processing allows flexible system management and minimizes power loss.
- Digital management models, automated operation, intelligent power monitoring help quickly detect incidents and optimize loads, bringing practical benefits to consumers in power management.
- These solutions are widely implemented in localities such as Ninh Binh, Ha Nam, Nam Dinh, and Ho Chi Minh City, contributing to the sustainable development of the power sector and regional socio-economic development.
In summary, medium and low voltage grid solutions in Vietnam are moving towards synchronization and optimization, with the application of clear load standards and modern technology to ensure safe, effective power supply.

Quality and Safety of Electrical Equipment
Quanganhcons emphasizes the use of high-quality equipment with full certification, ensuring the safety and durability of projects, approved by the Electricity sector.
Quality of electrical equipment and electrical safety is ensured by strictly complying with technical standards and national and international regulations. To protect users and ensure operational efficiency, these standards provide a legal framework to minimize the risk of electrical accidents. Specifically, TCVN 5699-1:2010 (IEC 60335-1:2010) outlines general safety requirements for household electrical appliances with rated voltages not exceeding 250V for single-phase appliances and 480V for other appliances. This standard emphasizes preventing surrounding dangers of electrical equipment, protecting the user.
- Standard TCVN 12669 (IEC 60204) targets industrial equipment safety, especially with appliances exceeding 1,000 V AC or 1,500 V DC, up to 36 kV, ensuring safety for operation and maintenance.
- IEC/EN 62368-1 standard refers to electrical and information technology equipment with rated voltages not exceeding 600V, classifying and specifying protective measures to minimize risks of shock, injury, or fire.
- National Standard QCVN 4:2009/BKHCN requires safety for devices like electric fans, microwaves, electric ovens, ensuring compliance with corresponding TCVN standards.
- QCVN 132:2022/BTTTT applies to telecommunications and information technology terminal equipment, built on IEC 62368-1:2018 standards, with requirements for electrical and physical safety such as drop, impact tests, effective from 2024.
Strictly complying with these standards and regulations helps reduce the risks of electric shock, fire explosions, and protect the environment as well as community health, improving the durability and efficiency of electrical equipment.

Showcase Projects of Quanganhcons
One of the showcase projects of Quanganhcons is the 2500kVA transformer station at Long Hau 3 Industrial Park, a testament to the company’s reputation and commitment to providing effective energy solutions.
Quanganhcons has affirmed its position in the M&E (Mechanical & Electrical) system construction field in Vietnam, especially with many exemplary projects in industrial electric systems, transformer stations, and renewable energy. Each project is a clear testament to the company’s capability in providing advanced and high-quality solutions.
The Long An transformer station project plays an important role in providing electricity sources for the development of the Mekong Delta industrial region. As the general contractor, Quanganhcons has designed and constructed modern transformer stations using high-class equipment from ABB and Schneider. This project not only enhances operational efficiency but also reflects professional cooperation in the industrial electric infrastructure field.
At Nhon Trach II – Loc Khang Industrial Park, Dong Nai, the transformer station expansion project involved installing 2 units of 2500kVA transformers, an ACB 4000A cabinet, and a 22kV mixed underground and overhead line system along with a 1000kVar reactive power compensation system. Completed in December 2024, serving the RVN Fibers Company Ltd. factory, this project demonstrates the ability to provide stable and continuous industrial electric systems for large-scale production and operation needs.
Quanganhcons not only makes its mark in industrial electric systems but also in renewable energy with rooftop solar projects and electric vehicle (EV) charging stations. Especially at the Ho Chi Minh City Hi-Tech Park, Quanganhcons has implemented solar power projects for factories, logistics centers, offices, and developed fast charging stations for electric vehicles. The company optimizes energy usage while protecting the environment by using equipment from major brands like ABB, Mitsubishi, Schneider.
Comprehensive MEP services from design to construction and maintenance play an important role in helping Quanganhcons maintain high quality in every project. With a team of experienced engineers and the application of advanced technology, the company commits to ensuring quality, progress, and reasonable costs. This helps Quanganhcons become a trusted partner in M&E projects, especially in medium – low voltage electric systems, air conditioning, water supply and drainage, and fire protection at industrial plants.

Quanganhcons asserts its position as a reliable partner in building electrical systems. With strong construction capabilities and effective strategies, the company ensures to deliver excellent technical benefits and long-term investment values.
Contact Quanganhcons now via Hotline: +84 9 1975 8191 for consultation and experience top construction, installation services of electrical systems in Gia Lai.
Quanganhcons offers design, construction, and operation services for power systems, with a special focus on transformer stations, ensuring quality equipment, construction progress, and comprehensive solutions for customers.