3 Phase Step Up Transformer Electricity 10000kva 110kv Class Oil Immersed Transformer
3 Phase Step Up Transformer Electricity 10000kva 110kv Class Oil Immersed Transformer
1. Product Description
The 3 Phase Step Up Transformer Electricity 10000kva 110kv Class Oil Immersed Transformer is a high-voltage, large-capacity three-phase power boosting device tailored for bulk energy transmission and grid-level power conversion projects. Rated at 10000kVA (10MVA) and categorized as a standard 110kV class oil immersed transformer, this heavy-duty electrical equipment is professionally designed for low-to-high voltage step-up conversion, serving as a core power transition unit for large-scale power generation and high-voltage power transmission systems. Manufactured fully compliant with IEC, ANSI and GB international power industry standards, this oil-filled step-up transformer supports stable operation in both 50Hz and 60Hz global power grid environments, widely recognized for reliable performance in utility power infrastructure and industrial energy projects.
This high voltage 110kV class step up power transformer adopts premium grain-oriented low-loss silicon steel core and full pure copper winding structure, effectively minimizing no-load loss, load loss and magnetic leakage during long-term full-load operation. Different from conventional step-down distribution transformers, it features optimized turn ratio calibration and professional electromagnetic design for step-up working conditions, ensuring precise and stable high-voltage output. Equipped with mature ONAN oil natural air natural cooling system and fully sealed welded steel tank, the device uses high-purity insulating mineral oil to undertake internal insulation and circulating heat dissipation functions. The reinforced multi-layer insulation structure and anti-short-circuit winding process greatly enhance mechanical stability and partial discharge resistance, making this 10000kVA oil immersed transformer capable of continuous stable operation in harsh high-voltage grid working conditions.
2. Core Purpose
The core purpose of the 110kV class 10000kVA three-phase step up transformer is to realize safe, efficient and low-loss voltage boosting of low-voltage power generated by centralized power sources, converting conventional low and medium-voltage electric energy into standard 110kV high-voltage grid power for long-distance bulk transmission. As a key hub equipment in power generation and high-voltage transmission links, it solves the core problem of voltage grade mismatch between power generation terminal equipment and 110kV main transmission grids, supporting large-capacity power collection, energy lifting and grid-connected delivery.
Beyond basic voltage step-up conversion, this high-capacity oil immersed electricity transformer undertakes critical functions of power quality stabilization and grid operation optimization. It effectively balances three-phase power output, suppresses voltage fluctuation and harmonic interference generated by intermittent power generation equipment, and improves the overall stability of grid-connected power quality. By boosting power to 110kV high voltage for transmission, it drastically reduces line transmission loss compared with medium and low-voltage power delivery, greatly improving power transmission efficiency. The 10000kVA large rated capacity provides sufficient load margin for long-term full-load operation and peak power surge, ensuring continuous, safe and economical operation of regional high-voltage power transmission systems.
3. Application Scenarios
3.1 Large-Scale New Energy Power Station Grid Connection
This 3 Phase 110kv 10000kva Oil Immersed Step Up Transformer is the core supporting equipment for centralized large-scale photovoltaic power plants, onshore wind farms and comprehensive new energy base projects. Most new energy power generation units output medium and low-voltage power that cannot be directly connected to 110kV high-voltage transmission grids. This high-capacity step-up transformer stably boosts generated power to standard 110kV grid voltage, realizing bulk clean energy collection, lifting and long-distance grid-connected transmission, which is essential for large-scale new energy power integration and grid scheduling.
3.2 Thermal and Hydropower Generating Station Power Transmission
It is widely applied in medium and large-sized thermal power plants, hydropower stations and biomass power generation projects. Power generation terminals of conventional power stations produce medium-voltage electric energy, which requires professional step-up equipment to convert into 110kV high voltage for outward transmission. The 10000kVA large load capacity perfectly matches the stable power output of standardized power stations, supporting continuous bulk power delivery to municipal main grids and regional power supply networks, guaranteeing stable power output of power generation bases.
3.3 Regional 110kV Substation Construction and Expansion
In the construction, renovation and capacity expansion of urban and regional 110kV primary substations, this oil immersed step-up power transformer serves as key power conversion and transmission equipment. It can cooperate with power grid scheduling systems to complete regional power energy lifting and cross-region power transmission, optimize regional power grid resource allocation, relieve main grid power supply pressure, and improve the overall power supply capacity and grid operation flexibility of urban and suburban power systems.
3.4 Heavy Industrial Base Self-Generation Power Transmission
Large heavy industrial bases such as metallurgy, chemical industry and mining are equipped with self-provided power generation systems to reduce external power dependence. This 110kV class step-up transformer can boost self-generated electric energy to high voltage for internal regional power scheduling or surplus power grid feedback, realizing efficient recycling of self-generated power, reducing enterprise power consumption costs, and supporting stable operation of industrial self-contained power systems.
4. Product Features
4.1 Large-Capacity Bulk Power Boosting, Strong Operational Stability
As a high-power 10000kVA 110kV step up oil immersed transformer, this equipment is designed for large-capacity continuous power boosting scenarios, breaking the load limit of medium and small-capacity transformers. It supports long-term stable full-load operation and safe short-term overload operation, with strong tolerance to power fluctuation and load surge generated by new energy and conventional power generation equipment. The precise impedance and voltage ratio design ensures stable 110kV high-voltage output without obvious voltage deviation, guaranteeing consistent power quality for grid-connected transmission.
4.2 Low-Loss Core & Pure Copper Winding, Energy-Saving and Efficient
Adopting high-grade low-loss grain-oriented silicon steel core and 100% pure copper winding structure, this three-phase high-voltage transformer effectively reduces iron loss, copper loss and no-load current during operation. Compared with traditional old-generation high-voltage transformers, it has lower operating temperature rise and higher power transmission efficiency, greatly reducing invalid power consumption in power boosting and transmission links. The optimized magnetic circuit and coil structure avoid local overheating and energy waste, delivering significant energy-saving benefits and lowering long-term operational costs for power stations and grid enterprises.
4.3 Fully Sealed Oil Immersed Structure, Durable and Low Maintenance
This high-voltage oil immersed transformer adopts fully sealed welded steel tank and corrugated heat dissipation structure, completely isolating internal insulating oil from external air, moisture and dust. It fundamentally prevents common faults such as oil oxidation, emulsification and insulation aging of open-type transformers. The natural oil circulation heat dissipation system operates efficiently without auxiliary cooling equipment, adapting to long-term outdoor unattended operation. The high-quality insulating oil maintains stable insulation and heat dissipation performance for decades, realizing long-term maintenance-free operation under standard working conditions.
4.4 Reinforced High-Voltage Insulation, High Safety and Fault Resistance
Tailored for 110kV high-voltage working conditions, the whole machine adopts multi-layer composite high-strength insulation materials and vacuum oil immersion technology, eliminating internal air gaps and reducing partial discharge. The reinforced winding compression structure enhances mechanical strength and strong short-circuit impact resistance, effectively resisting coil deformation and insulation damage caused by grid sudden faults. Equipped with complete overvoltage, overcurrent and short-circuit protection mechanisms, it can quickly isolate faults to protect power generation equipment and high-voltage grid safety, with extremely high operational reliability.
4.5 Strong Environmental Adaptability and Long Service Life
The external tank body adopts outdoor anti-corrosion and weather-resistant coating, with excellent rainproof, lightning-proof, wind-resistant and aging-resistant performance. It can operate stably in high temperature, low temperature, humid and other harsh outdoor environments, adapting to field operation of power stations and suburban substations. With standardized industrial production and rigorous factory testing, the transformer has a service life of more than 30 years under normal operating conditions, featuring low failure rate and high comprehensive cost performance for large power engineering projects.
5. Frequently Asked Questions (FAQ)
5.1 What is the main use of this 110kV 10000kVA step up oil immersed transformer?
The 3 Phase Step Up Transformer Electricity 10000kva 110kv Class Oil Immersed Transformer is a professional high-voltage power boosting equipment, mainly used to convert medium and low-voltage power generated by new energy power stations, hydropower and thermal power plants into standard 110kV high-voltage power. It focuses on bulk power collection and long-distance grid-connected transmission, widely applied in large-scale power generation base grid connection, regional 110kV substation power transmission and industrial self-power generation scheduling. Unlike step-down transformers used for terminal power distribution, this step-up model is dedicated to front-end power lifting and high-voltage energy transmission.
5.2 Why choose oil immersed type for 110kV 10MVA high-capacity step-up scenarios?
For 10000kVA large-capacity and 110kV high-voltage working conditions, oil immersed transformers have irreplaceable advantages over dry-type transformers. The insulating oil has excellent heat conductivity and stable insulation performance, which can quickly dissipate heat generated by long-term full-load operation and ensure low temperature rise of the equipment. Oil immersed structure has stronger short-circuit resistance, higher operational stability and better overload tolerance, perfectly adapting to fluctuating power output of power generation equipment. In addition, it features lower manufacturing cost, longer service life and stronger outdoor environmental adaptability, making it the mainstream choice for high-voltage large-capacity power transmission projects.
5.3 What daily maintenance is required for this high-voltage oil immersed step-up transformer?
This fully sealed 110kV class oil immersed step-up transformer requires minimal routine maintenance. The closed welded tank structure blocks external moisture and dust, avoiding insulating oil deterioration and insulation aging. Daily operation only needs regular inspection of oil temperature, operating noise, pressure relief device and external anti-corrosion status. Professional insulating oil quality testing and performance inspection are only required every 3 to 5 years, and oil replacement is carried out only when insulation indicators fail to meet standards. It greatly reduces later maintenance workload and equipment downtime loss, suitable for long-term unattended operation of high-voltage power stations and substations.
