Quotation for 1250kVA Transformer Station: Technical Factors to Know

This article provides an in-depth look at the quotation for a 1250kVA transformer station, focusing on important technical factors, standards, and certifications impacting cost and effectiveness.

General Information About 1250kVA Transformer

The 1250kVA transformer is an essential device in the electrical infrastructure, responsible for efficient power distribution. When considering the quotation for a 1250kva transformer station, attention should be paid to the transformer capacity, load-bearing capability, and design suitable for the intended use. Transformer capacity not only affects operating efficiency but also directly influences initial investment costs.

The 1250kVA transformer plays a crucial role in maintaining stability and efficiently distributing power to industrial zones, factories, and residential areas. Below are the key technical characteristics and important applications of this transformer series.

Technical Characteristics

• Power: Designed with a capacity of 1250 kVA to ensure stable power supply.
• Voltage: The 1250kVA transformer operates with an input voltage of 22 kV and an output of 0.4 kV.
• Phase and Winding Connection: It is a 3-phase transformer, usually using Dyn11 winding connection to meet diverse connection requirements.
• Frequency and Losses: Uses a frequency of 50 Hz, with no-load losses from 1110 to 2850 W to minimize energy consumption, while short-circuit losses range from 10900 to 15690 W depending on design and materials.
• Short Circuit Voltage and No-load Current: Minimum short circuit voltage is 5%, and maximum no-load current is around 1.5%.

Outstanding Advantages

• Energy Efficiency: Can reach up to 99.44%, optimizing operational efficiency.
• Safety and Eco-Friendly: With stable operation design and fire-resistant materials, dry transformers without oils help reduce environmental pollution.
• Fire Resistance and Short Circuit Handling: Equipped with fire-resistant materials and strong short-circuit handling ability to ensure safety.

Applications of the Machine

• Industrial Zones: Ensures stable power supply for machinery and production lines.
• Residential and Commercial Buildings: Meets electricity usage needs in large residential areas and commercial buildings.

Quality Standards

The 1250kVA transformer meets international and Vietnamese standards, such as ISO 9001, IEC 60076, and TCVN 6306, ensuring quality and safety during operation.

Overall, the 1250kVA transformer not only effectively meets technical requirements but also provides safety and reliability for power distribution processes.

Factors Affecting Quotation for 1250kVA Transformer Station.

Key factors affecting the quotation for a 1250kVA transformer station include manufacturing materials, transformer station design, and technical standards. Choosing the right transformer materials and technical inspection can optimize costs and transformer installation time. Considering a transformer station design suitable for the existing infrastructure is also essential.

1. Scale and Capacity of the Transformer Station: The quotation for a transformer station is greatly influenced by its capacity. For a 1250kVA transformer station, the scale requirement is often larger, implying more complex materials and designs.
2. Type of Transformer: Choosing between oil-filled transformers and dry transformers is crucial. Oil-filled transformers typically have lower costs compared to dry transformers with the same capacity.
3. Location and Terrain Conditions: The installation terrain of the station can significantly impact transportation and construction costs. Difficult geographical conditions often lead to increased installation costs.
4. Type of Transformer Station: Differences in transformer station design, such as kiosk or steel pole stations, can increase costs compared to simpler designs like rack stations.
5. Brand and Origin of Equipment: Renowned brands like ABB, Mitsubishi, Schneider offer high-quality equipment, but at a higher associated cost.
6. Labor and Operational Costs: For a 1250kVA transformer station, labor costs can be very high if skilled workers are required.
7. Permits and Legal Procedures: Costs for completing station permits and procedures should be considered during cost estimation.
8. Electrical System and Connections: Variations in the voltage system where the station needs connection can impact equipment choice and therefore affect total costs.

Importance of Standards and Certifications in Transformer Station

Technical standards and related certifications play a crucial role in evaluating the quotation for a 1250kVA transformer station. These standards ensure the safety, durability, and effectiveness of transformers during long-term operations. Meeting these standards not only ensures operational efficiency but also prevents unexpected incidents.

National Standards (TCVN) for Transformers

TCVN 6306 Standard:2015 is a decisive highlight for transformers both three-phase and single-phase, excluding some small or special transformers. This standard not only protects in terms of efficiency but also ensures electrical safety, confirming the transformer’s position in modern energy solutions.

Transformer Standard Certification

Standard certification is the process of evaluating transformer products to ensure they comply with TCVN 6306:2015. Officially designated certification organizations will perform this to ensure legal and quality compliance. The subsequent standard compliance declaration at competent agencies is a necessary action, confirming that these products meet all technical requirements of the country.

Inspection of Transformer Station

Circular 33/2015/TT-BCT issued by the Ministry of Industry and Trade stipulates the safety inspection of transformers before use and periodic checks. The inspection content encompasses general aspects from the transformer, lightning protection systems, to electrical cables and isolating switches, ensuring no electrical risks and enhancing device and human protection.

Importance of Certifications and Standards

• Ensure Safety: Standards and certifications are protective layers against electrical risks, keeping the station and transformer operating stably.
• Operational Efficiency: Compliance with standards helps optimize transformer operational efficiency, minimize losses, and improve productivity.
• Sustainable Development: Applying standards and certifications equates to pioneering sustainable development, supporting environmental impact reduction and effective energy usage.

Understanding technical factors and standards is key to optimizing costs and enhancing the effectiveness of a 1250kVA transformer station, thereby creating long-term and sustainable investment strategies.

For quotations and detailed information about the 1250kVA transformer station, contact QuangAnhcons via hotline 09 1975 8191.

QuangAnhcons provides consulting and design services for transformer stations upon request, ensuring strict adherence to technical standards and optimizing investment costs.