Transformer TMN-6300/110 kV oil-filled three-phase power transformer for voltage regulated substations
Manufacturer: Evernew Transformer (China) is a reliable and certified transformer manufacturer with international GOST, CE and UL certifications.
Power rating: 6300 kVA
High voltage: 110 kV
Low Voltage: 10 kV / 6 kV (on request)
Transformer Type: Three-phase oil-filled power transformer with load voltage regulation (LVR)
Scope: Power supply of distribution substations, industrial and municipal facilities.
Product Overview
Transformer TMN-6300/110 kV The Evernew Transformer is a high quality product for the reliable conversion of power from 110kV high voltage to 10kV or 6kV low voltage levels. The design allows the low voltage side to be selected to suit the customer's requirements and the specifics of the power system.
This three-phase oil-filled power transformer is equipped with on-load voltage regulation (OVR), which ensures that the output voltage remains stable during load changes and line voltage fluctuations. This makes it ideal for power systems with high consumption dynamics.
Technical specifications and design features
Windings: High quality copper or aluminum windings manufactured and assembled at the Evernew Transformer factory using state-of-the-art technology.
High voltage: 110 kV - reliable porcelain-insulated bushings ensure safe connection and operation.
Low Voltage: 10 kV or 6 kV can be selected depending on the requirements of the facility.
Oil-cooled: The transformer is equipped with an oil cooling system with heat sinks to ensure efficient heat dissipation and stable operation even at maximum loads.
Voltage regulation: On-load tap-changer (load-side regulator) allows voltage correction without tripping, which is particularly important for maintaining the quality of the power supply.
Case: Robust metal tank with protection against external influences - dust, moisture and mechanical damage.
Defense: The gas relay monitors the oil level and automatically shuts down the transformer in case of emergency, increasing operational safety.
Transformer weight: about 4500 kg, oil mass is about 1000 kg.
Advantages of the TMN-6300/110 kV transformer from Evernew Transformer
Full cycle of production at our own factory with quality control at all stages.
Flexible configurations - 10 kV or 6 kV low voltage side can be selected to suit customer needs.
International certifications and compliance with GOST, CE and UL standards.
Reliable operation in harsh climatic conditions, including extreme temperatures and humidity.
Fast delivery and technical support in Russia, Kazakhstan, Belarus, Uzbekistan and other CIS countries.
Possibility of wholesale supplies and favorable conditions for dealers and large projects.
Production process and key components
1. fabrication of magnetic core made of silicone electrical steel
The transformer core is made of high-quality thin sheets of cold-rolled siliconized electrical steel (typically 0.3-0.35 mm thick). These sheets have been specially treated to minimize hysteresis losses and eddy currents.
Sheets are precisely cut and stamped with minimal gaps to form core packs.
The core is assembled in multiple layers with a special arrangement of sheets to reduce noise and vibration.
Mandatory insulation between layers to reduce Foucault currents and improve energy efficiency.
2. Production and assembly of windings
Windings are made of high quality copper or aluminum depending on conductivity requirements and customer budget.
The wire is carefully insulated with special enamel to prevent short circuits and increase reliability.
The windings are wound using modern automated machines to ensure accuracy and repeatability.
The high-voltage winding is rated at 110 kV and the low-voltage winding is typically 10 kV, with project-specific adaptability.
The windings are designed for optimal placement to reduce losses and improve thermal performance.
3. transformer oil system and tank
The transformer is oil-cooled, where mineral oil serves as both insulator and coolant.
The oil tank is made of high-strength steel to withstand internal pressure and provide protection from external influences.
The outer surface of the tank is equipped with heat sinks for efficient heat dissipation.
Oil volume compensation system - expansion tank with compensator to prevent leakage and ensure oil level stability during temperature changes.
4. insulation and high voltage bushings
High voltage bushings are mounted on porcelain insulators, providing reliable electrical insulation and mechanical strength.
The bushings are designed for ease of installation and maintenance.
The bushings are designed to withstand increased electrical loads and are resistant to mechanical damage.
Read more：Transformer TMH 6300 35 with voltage regulation
Quality control and testing
1. Factory tests
Each TMN-6300/110 kV transformer undergoes a comprehensive set of tests:
Electrical tests: winding resistance, insulation, breakdown voltage and load tests.
Thermal tests: evaluation of cooling system performance under rated load.
Vibration and noise tests: control of the acoustic characteristics of the transformer.
Functional testing of protection devices including gas relays and on-load tap-changers.
2. testing for compliance with standards
Evernew Transformer products are certified to international quality and safety standards (GOST, CE, UL), as evidenced by regular inspections and audits.
Construction and operation features
High reliability of operation under any climatic conditions - from frost to high humidity and heat.
Capable of handling loads with fluctuating parameters thanks to the integrated load voltage regulator.
Protection against external factors - dust, moisture, corrosion.
Ease of installation and maintenance thanks to the clever design with roller supports and accessible component arrangement.
Conclusion
The TMN-6300/110 kV transformer from Evernew Transformer is a modern, high-tech device that combines advanced manufacturing techniques with strict quality control. It is ideal for use in substations, providing reliable power supply with maximum efficiency and safety.
Manufacturer and supply of TMN-6300/110 kV transformers
Evernew Transformer is a leading Chinese manufacturer of three-phase oil-filled power transformers, including the TMN-6300/110 kV model, designed for distribution substations and power facilities. The company has modern production facilities, applies innovative technologies and strict quality control at all stages of manufacturing.
Evernew Transformer is certified according to GOST, CE and UL international standards, which confirms the reliability and safety of its products. These certificates allow the company to successfully export transformers to the markets of Russia, Kazakhstan, Belarus, Tajikistan, Kyrgyzstan and other CIS and near abroad countries.
The company actively develops cooperation with distributors and partners around the world, providing timely deliveries and comprehensive service support. In addition to manufacturing and supply, Evernew Transformer provides installation, maintenance and modernization services to ensure the longevity and stability of transformers at customer sites.
Evernew Transformer's TMN-6300/110 kV series transformers are designed to meet the high demands for reliability, efficiency and security of power supply. They are widely used in distribution networks, large industrial enterprises and power complexes, ensuring stable operation of power supply systems even under conditions of variable loads and difficult climatic conditions.
With its professional approach and quality products, Evernew Transformer has earned the trust of many customers around the world and continues to expand its presence in the international power electrical market.
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