63 mva 60 mva transformer 100kv 20mva 30mva 10mva power transformer

63 mva 60 mva transformer 100kv 20mva 30mva 10mva power transformer step up 110kv high voltage transformer

1. Product Description

The 63 mva 60 mva transformer 100kv 20mva 30mva 10mva power transformer step up 110kv high voltage transformer is a professional high-voltage step-up power transformation equipment designed for long-distance power transmission, power station grid connection and regional hub substation projects. Covering multiple mainstream capacity grades including 10MVA, 20MVA, 30MVA, 60MVA and 63MVA, this high voltage step up transformer supports voltage conversion between 100kV medium-high voltage and 110kV high-voltage transmission systems, serving as core power conversion hardware for utility power grids and large-scale power generation projects. Manufactured fully compliant with IEC and ANSI industry standards, this heavy-duty power transformer adopts mature oil-immersed insulation and cooling technology, ensuring stable continuous operation under high-voltage and large-load working conditions.

Different from conventional medium and low voltage distribution transformers, this 100kV to 110kV step up power transformer is structurally optimized for high-voltage transmission scenarios. It adopts high-purity oxygen-free copper windings and low-loss grain-oriented silicon steel core, effectively suppressing magnetic flux leakage and reducing no-load and load loss during long-term full-load operation. The whole unit undergoes high-vacuum drying and oil injection treatment, with a fully sealed anti-aging oil tank structure that isolates internal insulating oil from external moisture and dust. From small-capacity 10MVA and 20MVA models for regional branch power transmission to medium 30MVA units and large 60MVA, 63MVA high-power specifications for hub substations, this series of high voltage transformers covers diversified high-voltage power transformation demands, with precise voltage regulation and excellent short-circuit impact resistance.

2. Core Purpose

The core purpose of this 100kV/110kV step up high voltage power transformer is professional high-grade voltage lifting and large-capacity power transmission optimization. Its primary function is to step up 100kV medium-high voltage electric energy to standard 110kV high-voltage transmission voltage, meeting the basic voltage requirements of long-distance grid power delivery. In power system operation, stable voltage lifting can effectively reduce line transmission loss, improve power transmission efficiency, and solve the power attenuation problem in remote power supply and cross-regional power dispatching.

Different capacity models undertake differentiated grid tasks. The 10MVA and 20MVA power transformers are mainly used for local regional power grid voltage upgrading and small-scale new energy station grid connection. The 30MVA high voltage transformer is suitable for medium-sized power generation bases and regional main line power transmission and transformation. The high-capacity 60MVA and 63MVA step up transformers bear core hub power transformation tasks of urban main substations and large energy bases. Beyond basic voltage conversion, this high voltage power transformer also stabilizes grid operating voltage, balances system load, improves power supply quality, and provides reliable overvoltage and short-circuit protection for high-voltage transmission networks, ensuring safe and stable operation of the entire power system.

3. Application Scenarios

With multi-capacity coverage, professional 100kV to 110kV step-up performance and excellent high-voltage resistance, this high voltage power transformer series is widely applied in power station grid connection, national grid transmission, new energy power generation, industrial hub power supply and cross-regional power dispatching projects, covering almost all mainstream 110kV level high-voltage power transformation scenarios.

3.1 Thermal & New Energy Power Station Grid Connection

Large thermal power plants, centralized photovoltaic bases and wind power generation stations need to boost generated electric energy to 110kV high voltage for long-distance grid integration. The 10MVA and 20MVA step up transformers are commonly used for distributed new energy station grid connection, while 30MVA, 60MVA and 63MVA high voltage transformers serve large-scale wind and solar power bases. This 100kV to 110kV power transformer effectively solves the problem of mismatched power generation voltage and transmission grid voltage, realizing efficient grid-connected power transmission of clean energy and conventional power sources.

3.2 Regional Hub Substation Construction

Urban central substations, township-level hub power stations and provincial border grid connection nodes are core application scenarios for this series of high voltage power transformers. Regional medium-voltage 100kV grid power needs to be boosted to 110kV for cross-region power allocation and urban main grid power supply. Large-capacity 60MVA and 63MVA transformers are widely used in urban core substations to support large-load urban power consumption, while 30MVA and 20MVA models match suburban and county-level substation power transformation demands, realizing hierarchical and refined power grid operation.

3.3 Heavy Industrial & Mining Enterprise Power Supply

Large metallurgical plants, chemical industrial parks, mining bases and heavy manufacturing enterprises have ultra-high stable power consumption demand and independent high-voltage power supply systems. These industrial users usually access 100kV medium-high voltage grids and need 110kV voltage boosting and transformation to support internal high-power equipment operation. The full series of step up power transformers from 10MVA to 63MVA can flexibly match different industrial scale power demands, ensuring stable power supply for continuous industrial production and avoiding production shutdown caused by voltage fluctuation.

3.4 Cross-Regional Power Transmission & Grid Dispatching

In cross-city and cross-regional power mutual aid and power peak regulation projects, 110kV high-voltage transmission lines are the main carrier of long-distance power delivery. This 100kV to 110kV high voltage step up transformer improves grid voltage grade, greatly reduces line power loss in long-distance transmission, and enhances the efficiency of regional power resource allocation. Multi-capacity model matching can meet the power transformation demands of different transmission scales, providing stable equipment support for power grid peak regulation and emergency power dispatching.

4. Product Features

This series of 10MVA to 63MVA 100kV/110kV step up high voltage power transformers integrates advanced high-voltage insulation technology and optimized electromagnetic design, with prominent advantages of low loss, strong stability, high safety and wide adaptability, being reliable core equipment for modern high-voltage power transmission and transformation projects.

4.1 Precise Step-Up Voltage Conversion & Stable Output

Specially designed for 100kV to 110kV voltage lifting, this high voltage power transformer adopts optimized turn ratio winding structure, with accurate voltage conversion rate and extremely low output deviation. It can resist high-voltage grid fluctuation and instantaneous current impact, maintaining balanced three-phase voltage and current output in long-term full-load operation. Whether it is small-capacity 10MVA, 20MVA or large 60MVA, 63MVA models, it can achieve stable and efficient step-up power transmission, fully meeting the operating standards of 110kV high-voltage transmission networks.

4.2 Ultra-Low Loss & High Transmission Efficiency

Equipped with high-performance low-loss silicon steel core and high-conductivity copper windings, the step up power transformer effectively reduces no-load loss and load loss during high-voltage operation. The optimized magnetic circuit design avoids magnetic saturation and harmonic interference, with overall power transmission efficiency exceeding 99%. Long-term operation can greatly reduce power grid line loss and operational energy consumption, bringing significant energy-saving benefits for power stations and utility grid systems, and complying with modern power grid energy-saving and emission-reduction requirements.

4.3 Excellent High-Voltage Insulation & Impact Resistance

Adopting high-grade composite insulating materials and multi-layer insulation structure, this 110kv high voltage transformer has strong high-voltage resistance and lightning impulse resistance, which can stably withstand 100kV-110kV high-voltage operating environment without insulation breakdown. The internal winding structure is mechanically reinforced to effectively resist short-circuit current impact, avoiding winding deformation and equipment damage during grid faults. It has extremely low partial discharge value and stable electrical performance, adapting to long-term high-voltage continuous operation.

4.4 Mature Oil Cooling System & Ultra-Long Service Life

Adopting standard ONAN/ONAF natural oil circulation and air cooling mode, the equipment realizes uniform and efficient internal heat dissipation without redundant auxiliary equipment. The fully sealed vacuum oil injection process isolates insulating oil from external air and moisture, delaying oil aging and insulation degradation. Under rated working conditions, the design service life of the 10MVA to 63MVA transformer series can reach more than 40 years, with low failure rate in long-term unattended operation and high operational stability.

4.5 Multi-Capacity Matching & Low Operational Cost

Covering 10MVA, 20MVA, 30MVA, 60MVA and 63MVA full-range mainstream capacities, the product can accurately match small, medium and large-scale high-voltage power transformation projects. The modular standardized structure facilitates on-site hoisting, installation and commissioning. Daily maintenance is simple and feasible, only requiring regular oil quality inspection, heat dissipation system cleaning and electrical performance testing. It has low later operation and maintenance costs and high comprehensive cost performance in large-scale power grid and power station projects.

5. FAQ

5.1 How to choose the right capacity among 10MVA, 20MVA, 30MVA, 60MVA and 63MVA high voltage step up transformers?

Capacity selection depends on actual power generation scale, transmission load and future grid expansion demand. The 10MVA and 20MVA power transformers are ideal for small distributed new energy stations, county-level branch grid transformation and low-capacity industrial power supply. The 30MVA model is suitable for medium-sized power plants and suburban main line power transmission projects with moderate load. The 60MVA and 63MVA large-capacity step up transformers are exclusively used for urban core substations, large wind-solar bases and heavy industrial hub power supply with high continuous load. It is recommended to reserve 15%-20% load margin during selection to avoid long-term full-load overload operation.

5.2 What is the difference between 100kV to 110kV step up transformers and conventional distribution transformers?

This series of high voltage transformers belongs to power transmission-grade equipment, which is fundamentally different from ordinary distribution transformers. Conventional distribution transformers focus on terminal low-voltage power distribution, while 100kV/110kV step up power transformers are used for high-voltage long-distance power transmission and grid connection. They adopt upgraded high-voltage insulation structure, stronger short-circuit resistance and lower loss design, supporting 24-hour continuous high-load operation. In addition, this step up transformer has stricter manufacturing standards and more stable voltage regulation performance, which is the key core equipment of transmission networks rather than terminal distribution systems.

5.3 What key maintenance points ensure long-term stable operation of high-capacity 110kV step up transformers?

Daily maintenance of 10MVA to 63MVA high voltage power transformers focuses on high-voltage safety and heat dissipation stability. First, regularly test insulating oil quality and oil temperature, replace aging insulating oil in time to ensure insulation and heat dissipation performance. Second, thoroughly clean radiator and ventilation components to prevent dust accumulation from blocking heat dissipation and causing overheating faults. Third, regularly detect winding insulation resistance, three-phase voltage balance and protection device sensitivity to ensure no abnormal high-voltage discharge. Fourth, check the sealing structure regularly to avoid oil leakage. Standard routine maintenance can effectively reduce fault rate and extend the service life of high-voltage power transformation equipment.