16000 KVA 3-Phase Duplex Winding Oil Type Transformer 110kV to 10.5kV
1. Product Overview
This 16000 KVA 3-Phase Duplex Winding Oil Type Transformer 110kV to 10.5kV is a high-performance industrial power conversion device designed for medium and high-voltage power transmission and distribution systems. Also known as a 16MVA three-phase double-winding oil-immersed power transformer, it adopts mature duplex winding structural design and standard oil-immersed cooling insulation technology, with a rated capacity of 16000kVA, a high-voltage rated voltage of 110kV, and a low-voltage output voltage of 10.5kV. Manufactured in strict accordance with international IEC standards and domestic power industry specifications, this three-phase oil type step-down transformer features stable voltage conversion, reliable insulation performance and long-term continuous operation capability, serving as core primary power equipment for 110kV grid step-down power supply scenarios.
The whole machine adopts fully sealed oil tank structure and high-quality grain-oriented silicon steel sheet iron core, matching high-strength copper winding coils. It supports multiple cooling modes including ONAN and ONAF, adapting to different ambient temperature and load operation conditions. As a mainstream 110kV level power transformer, it effectively converts high-voltage grid electric energy into 10.5kV industrial and commercial usable voltage, solving the voltage matching problem between high-voltage transmission grid and terminal power distribution system, and is widely recognized in the power equipment industry for its low loss and high stability advantages.
2. Core Product Features
2.1 Low Energy Loss and High Operational Efficiency
This 110kV to 10.5kV duplex winding oil immersed transformer optimizes the iron core lamination process with multi-step butt joint technology, which greatly reduces no-load loss and load loss. Compared with traditional ordinary transformers of the same capacity, its operational energy consumption is significantly reduced, and the overall power conversion efficiency is improved to over 99%. It can maintain efficient and stable operation under long-term rated load and intermittent overload conditions, effectively reducing the long-term operational power consumption cost of power stations and industrial parks, and is an energy-saving and environmentally friendly power transmission and distribution equipment.
2.2 Excellent Structural Stability and Anti-Short Circuit Capability
The 3-phase duplex winding structure adopts reinforced coil support and high-strength insulating paper tube positioning design, which effectively resists electromagnetic impact and sudden short-circuit current impact during grid operation. The overall mechanical strength of the winding is high, with no deformation or displacement under extreme working conditions. The fully welded sealed oil tank structure prevents external dust, moisture and corrosive gas from entering, avoiding internal insulation aging and oil deterioration. The product has extremely low partial discharge level, stable insulation performance, and can adapt to long-term continuous operation in complex power grid environments.
2.3 Low Noise and Strong Environmental Adaptability
Through optimized iron core vibration reduction and coil damping design, the operating noise of this 16000KVA oil type transformer is far lower than the industry standard, meeting the environmental protection noise requirements of urban substations and industrial zones. It can work stably in the ambient temperature range of -40℃ to +40℃, and has strong overload resistance and overvoltage tolerance. It can operate safely with full load under 110% rated overvoltage, adapting to peak power consumption and fluctuating grid voltage conditions in various scenarios.
2.4 Low Maintenance and Long Service Life
The oil-immersed insulation system has excellent heat dissipation and aging resistance, with no need for frequent core lifting and internal maintenance. The standard configuration of oil level monitoring, temperature detection and pressure protection accessories realizes real-time monitoring of operating status. The whole machine has stable performance, low failure rate, and a design service life of more than 30 years, greatly reducing later maintenance costs and equipment replacement frequency for users.
3. Core Application Purposes
As a professional high-power step-down power transformation device, the 16000 KVA 3-Phase Duplex Winding Oil Type Transformer 110kV to 10.5kV mainly undertakes the core function of step-down power conversion in power transmission and distribution systems. Its primary purpose is to convert 110kV high-voltage electric energy from regional main power grids into 10.5kV medium-voltage electric energy that meets the access standards of industrial production, urban power distribution and new energy power stations, realizing safe, stable and efficient voltage grade conversion.
In addition to basic voltage transformation and power transmission functions, this three-phase double-winding transformer also undertakes grid power distribution, load balancing and power supply stability maintenance tasks. It can effectively isolate high and low voltage circuits, suppress grid voltage fluctuations, ensure continuous and stable power supply for terminal electrical equipment, and provide reliable power guarantee for high-load and continuous production scenarios. At the same time, it can cooperate with power grid dispatching to adjust operating load, improve the utilization rate of grid electric energy, and reduce power transmission loss in the power supply link.
4. Typical Application Scenarios
4.1 Urban Central Substations and Regional Power Grids
This 110kV/10.5kV oil-immersed power transformer is the key core equipment of urban medium and high-voltage power distribution substations. It is suitable for regional grid step-down power supply in urban built-up areas, new urban areas and urban fringe power supply zones, undertaking the power conversion task of transmitting 110kV main grid power to urban 10kV distribution network, covering residential power consumption, commercial supporting power consumption and urban public facility power supply, and ensuring the stability of urban regional power grid operation.
4.2 New Energy Power Generation Boost and Step-Down Stations
It is widely used in supporting power transformation projects of large-scale photovoltaic power stations, wind farms and energy storage power stations. In new energy power generation scenarios, it can match the power generation voltage of new energy units, complete the step-down grid connection of new energy power, solve the problem of voltage mismatch between new energy power generation and public power grid, and realize efficient consumption and stable grid connection of clean energy. It is an indispensable core equipment for new energy power supporting projects.
4.3 Large Industrial and Mining Enterprise General Step-Down Stations
For heavy industrial enterprises such as chemical industry, metallurgy, mining, building materials and machinery manufacturing with high power consumption and continuous production, this 16000KVA high-power transformer is used as the general step-down power supply equipment of factory substations. It converts 110kV high-voltage grid power into 10.5kV production power supply voltage, meeting the long-term high-load power demand of industrial production lines, large motors and industrial supporting equipment, and ensuring the continuous and stable operation of industrial production.
4.4 Industrial Parks and Chemical Park Power Supply Projects
Professional industrial parks, petrochemical parks and logistics industrial zones have centralized power consumption and high power supply stability requirements. This oil type duplex winding transformer can be used as the main power transformation equipment of park centralized power supply stations, providing unified 10.5kV medium-voltage power supply for multiple enterprises and equipment in the park, realizing centralized power distribution and unified power grid management, and improving the safety and efficiency of park power supply system.
5. Frequently Asked Questions (FAQ)
Q1: What are the applicable cooling modes of the 16000 KVA 110kV to 10.5kV duplex winding oil type transformer?
This three-phase oil-immersed transformer supports two mainstream cooling modes: ONAN natural oil circulation natural air cooling and ONAF natural oil circulation forced air cooling. Under conventional ambient temperature and rated load, the ONAN mode can meet the normal heat dissipation demand with low operating noise and energy saving. When operating under high temperature environment or long-term overload condition, the ONAF forced air cooling mode can be started to accelerate heat dissipation, ensure that the internal temperature rise of the transformer is within the standard range, and guarantee long-term safe and stable operation of the equipment. Users can freely switch cooling modes according to on-site operating conditions.
Q2: What is the overload operation capacity of this 110kV/10.5kV oil immersed power transformer?
This 16000KVA high-power transformer has excellent overload resistance and overvoltage tolerance. Under the ambient temperature of 40℃, it can operate safely with full load for a long time under 110% rated overvoltage. For short-term peak load scenarios, it can withstand 120% intermittent overload operation within the allowable time specified by the industry standard, without temperature rise overload or insulation damage. The product fully considers the peak power consumption demand of power grids and industrial production in structural design, which can effectively adapt to fluctuating load operation and avoid equipment shutdown caused by instantaneous power surge.
Q3: What daily maintenance work is required for the duplex winding oil type transformer in operation?
This fully sealed oil-immersed transformer has low daily maintenance cost and simple operation. Conventional daily maintenance only needs to regularly check the oil level and oil quality of the transformer oil tank, monitor the operating temperature and ambient temperature, and confirm the normal operation of cooling fans and monitoring accessories. It is not necessary to lift the core for internal inspection frequently. It is recommended to conduct a comprehensive insulation performance test and oil quality analysis every 2-3 years. Regular dust removal of the equipment shell and wiring terminals can effectively avoid aging failure, ensure long-term stable operation of the equipment, and extend the overall service life.
