Three Phase 4500KVA Oil Immersed Transformers 100/20 KV Power Distribution Transforme Winding Machin

1. Product Introduction
The three phase 4500KVA oil immersed transformer 100/20KV is a heavy-duty high-voltage power distribution transformer designed for large-scale power grid voltage conversion and industrial power transmission projects. As a professional step-down power distribution transformer with a rated capacity of 4500KVA, this equipment specializes in converting 100KV ultra-high input voltage to standard 20KV medium voltage output, delivering stable, safe and efficient power conversion for regional power supply systems. Manufactured with premium electromagnetic materials and advanced winding machine processing technology, this high-capacity oil immersed power transformer complies with international IEC and ANSI industry standards, ensuring superior electrical performance and structural durability.
Adopting mature oil cooling circulation technology, the 100/20KV three-phase oil immersed distribution transformer effectively solves heat dissipation challenges during long-term full-load operation. The precision winding structure processed by professional transformer winding machine optimizes current transmission efficiency, minimizes magnetic flux leakage, and greatly reduces operational power loss. This heavy-duty power distribution transformer is widely recognized for its stable voltage output, strong overload capacity, and excellent environmental adaptability, serving as core power transmission equipment for industrial parks, power grid stations, and large infrastructure projects.
2. Core Product Features
2.1 High-Capacity Stable Power Conversion
This 4500KVA three-phase oil immersed transformer features a large rated capacity and supports continuous full-load and long-term overload operation, perfectly meeting the high-power demand of large industrial production and regional power distribution. The professional winding machine precision winding process ensures uniform coil arrangement and stable current transmission, enabling accurate 100KV to 20KV voltage stepping with balanced three-phase voltage, no sudden voltage fluctuation, and ultra-high power supply stability. It effectively avoids power supply interruption and equipment failure caused by load surge, ensuring uninterrupted operation of high-power electrical systems.
2.2 Low Loss and Energy-Saving Performance
Equipped with high-grade grain-oriented silicon steel sheets and high-purity copper windings, the 100/20KV oil immersed power distribution transformer significantly reduces no-load loss and load loss compared with traditional large-capacity transformers. The optimized magnetic circuit structure cuts down magnetic leakage loss, while the precise winding process lowers copper loss during power transmission. Its advanced energy-saving design effectively reduces long-term operational power consumption and grid transmission loss, helping power enterprises and industrial users reduce operational costs and achieve green power supply standards.
2.3 Advanced Oil Immersed Cooling and Insulation System
Adopting a fully sealed oil immersed cooling structure, this heavy-duty 4500KVA power transformer uses high-insulation transformer oil for circulating heat dissipation. The oil circulation system quickly takes away heat generated by coils and iron cores during high-load operation, maintaining stable internal temperature and preventing component aging caused by overheating. The integral vacuum oil injection process eliminates internal air and moisture, greatly improving insulation performance and dielectric strength, effectively resisting high-voltage breakdown and short-circuit risks, and improving the overall safety level of power distribution operation.
2.4 Excellent Structural Safety and Durability
The whole machine adopts a reinforced steel shell structure with strong mechanical impact resistance and short-circuit resistance. The core winding components fixed by professional winding machine technology have firm structural stability, which can resist electromagnetic impact generated by instantaneous short circuit of the power grid and avoid coil deformation and damage. The fully sealed anti-corrosion shell effectively isolates external dust, rainwater, corrosive gas and other adverse factors, adapting to outdoor open-air and harsh industrial environments. With a scientific internal structure layout, the equipment has low operating noise, strong seismic performance and a service life of up to 35 years.
2.5 Low Maintenance and High Operational Reliability
This three-phase 100/20KV oil immersed distribution transformer adopts a fully enclosed maintenance-free design, avoiding oil pollution and moisture ingress. Compared with open-type transformers, it does not require frequent oil testing and replacement, greatly reducing daily maintenance workload and operational costs. All core components are processed through precision industrial standards, with low failure rate and high operational reliability, which can adapt to long-term uninterrupted operation of power grid stations and large industrial projects.
3. Core Product Uses
The primary core use of the three phase 4500KVA oil immersed transformer 100/20KV is high-efficiency medium and high voltage power conversion and regional power distribution. As a key hub device in high-voltage power grids, it steps down 100KV ultra-high voltage industrial grid power to 20KV medium voltage power that meets industrial production and secondary power distribution standards, realizing safe transmission, voltage stabilization and load distribution of high-power electric energy. It effectively connects high-voltage transmission grids and medium-voltage power distribution networks, solving the voltage matching problem of large-scale power transmission.
In addition to basic voltage transformation functions, this high-capacity power distribution transformer also undertakes core functions such as grid load balancing, power quality optimization and power supply safety protection. It can suppress high-voltage grid voltage fluctuations, stabilize 20KV terminal output voltage, and adapt to instantaneous load changes of high-power equipment. It plays a vital role in reducing power grid transmission loss, improving power supply efficiency, and ensuring safe and stable operation of regional high-power power supply systems, supporting continuous power consumption of large industrial equipment and regional power grid operation.
4. Main Application Scenarios
4.1 Regional Power Grid Substation Projects
This 4500KVA 100/20KV three-phase oil immersed transformer is widely used in urban regional substations, county-level power grid reconstruction and new power grid construction projects. It serves as a core voltage transformation device for high-voltage power distribution, realizing step-down processing of 100KV grid power and providing stable 20KV medium-voltage power for urban industrial zones, residential supporting power distribution and municipal power supply systems, ensuring the stability of urban regional power supply networks.
4.2 Large Industrial Park Power Supply
It is the preferred power distribution equipment for large industrial parks, heavy industrial bases, chemical industrial zones and metallurgical production bases. These scenarios require high-power and stable power supply support, and the high load capacity and stable voltage conversion performance of the heavy-duty oil immersed power transformer can fully meet the long-term high-power operation demand of mechanical equipment, production lines and supporting electrical systems in heavy industry projects.
4.3 Large Infrastructure and Energy Projects
The 100/20KV oil immersed power distribution transformer is applicable to supporting power distribution of large infrastructure projects including railway hub stations, port terminals, airport supporting facilities and large water conservancy projects. It also matches the power supply demand of centralized new energy power generation bases such as large photovoltaic power stations and wind power plants, realizing safe grid connection and voltage conversion of new energy electric energy.
4.4 Mining and Remote Heavy Industry Power Supply
Aiming at mining areas, mountainous industrial zones and remote heavy industry projects with harsh operating environments, this sealed oil immersed transformer has outstanding dust-proof, anti-corrosion and weather resistance performance. It can operate stably in high-dust, high-humidity and variable temperature environments, solving the problem of difficult power supply and high equipment failure rate in remote industrial areas, and providing reliable high-power power guarantee for mining and field operation projects.
4.5 Commercial Cluster Large-Scale Power Distribution
It is also suitable for centralized power supply and distribution of large commercial clusters, super-large shopping malls, comprehensive business districts and logistics industrial parks. Its high-capacity power transmission capacity can bear the simultaneous power consumption of a large number of electrical equipment, lighting systems and central air-conditioning systems in commercial areas, ensuring stable and safe power supply for large-scale commercial operation.
5. FAQ (Frequently Asked Questions)
Q1: What is the applicable power frequency and load range of the 4500KVA 100/20KV three-phase oil immersed transformer?
This high-capacity oil immersed power distribution transformer is applicable to standard 50Hz/60Hz AC power systems, with a rated voltage ratio of 100KV high voltage to 20KV low voltage and a rated capacity of 4500KVA. It supports long-term stable full-load operation and allows short-term overload operation within the standard allowable range. The equipment is designed for high-power industrial and grid power distribution scenarios, and can continuously and stably bear the power load of large-scale power consumption equipment, with strong load adaptability and operational stability.
Q2: What are the advantages of transformer winding machine processing for this oil immersed transformer?
This three-phase 4500KVA transformer adopts professional transformer winding machine for integral coil winding and forming processing. Compared with manual winding, mechanical winding features more uniform coil arrangement, tighter winding density and higher dimensional accuracy. It effectively reduces coil internal gaps and magnetic flux leakage loss, improves the overall conductivity and heat dissipation uniformity of the winding, and enhances the transformer's overload resistance and short-circuit impact resistance. Meanwhile, standardized mechanical processing greatly improves product consistency and overall quality stability, reducing operational failure risks.
Q3: What environmental conditions are suitable for the installation and operation of this 100/20KV oil immersed transformer?
The sealed oil immersed heavy-duty transformer is suitable for indoor and outdoor installation. The standard operating environment temperature ranges from -30℃ to +45℃, and it can adapt to high-altitude areas below 1000 meters and high-humidity environments with relative humidity ≤95%. Thanks to its fully sealed anti-corrosion and dust-proof structure, it can operate stably in harsh environments such as industrial dust, coastal salt fog and field open-air conditions. It is widely adaptable to various complex power distribution scenarios with no strict requirement for super clean installation environment, greatly reducing installation and site matching costs.

