35kV Class Power Transformer

1. Product Overview

35kV class power transformer is a core medium-voltage power transmission and distribution equipment widely applied in regional power grids, new energy power stations and large industrial power supply systems. This product series mainly includes oil-immersed and dry-type structures, adopting mature electromagnetic design and high-quality electrical materials, which can stably convert 35kV high-voltage electric energy into medium and low voltage power for terminal power consumption equipment.

Different from ordinary distribution transformers, 35kV power transformers are designed for long-term continuous operation in complex grid environments. They feature strong grid adaptability, excellent voltage regulation performance and high operational stability, and can cope with load fluctuation and line voltage loss in long-distance power transmission scenarios. The whole series strictly complies with IEC international standards and national power industry specifications, and has passed strict type tests to meet the reliable power supply demands of industrial production, urban and rural power grid upgrading, and new energy supporting projects.

2. Product Technical Parameters

The mainstream parameters of 35kV class power transformer cover multiple capacity specifications, supporting conventional and customized configuration. The core technical parameters are sorted in the table below for engineering selection and project design reference:

3. Product Core Features

3.1 Stable and Energy-saving Performance

The transformer core is made of high-grade cold-rolled grain-oriented silicon steel sheet or amorphous alloy material, with optimized electromagnetic structure design, which effectively reduces no-load loss and load loss. Compared with conventional old-fashioned transformers, the energy-saving effect is obvious, and it can maintain low energy consumption operation for a long time, effectively reducing the operating cost of the power system. The winding adopts high-purity copper wire or copper foil winding process, with uniform current distribution and low temperature rise during operation.

3.2 High Operational Reliability

The whole machine adopts reinforced insulation structure, with strict partial discharge control, strong anti-aging and anti-breakdown ability. It has excellent short-circuit withstand performance, which can effectively resist current impact caused by grid short-circuit and load sudden change. The oil-immersed type is equipped with reliable oil sealing and pressure relief structure, and the dry-type vacuum casting process avoids internal air bubbles, ensuring stable operation in high temperature, humid and other harsh environments.

3.3 Flexible and Convenient Adaptability

Support multiple voltage levels, capacity specifications and tap regulation modes, and can be customized according to user's on-site grid conditions and load demands. The overall structure is compact, the floor area is small, and the installation and commissioning process is simple. The on-load tap changing model can realize real-time voltage adjustment without power outage, effectively solving the voltage deviation problem caused by long-distance power transmission and load fluctuation, and improving power supply quality.

3.4 Safe and Environment-friendly Operation

The dry-type product is flame-retardant, fireproof and explosion-proof, with no oil leakage risk, zero pollution to the surrounding environment, and is suitable for indoor and densely populated scenarios. The oil-immersed product adopts environmentally friendly insulating oil, with low noise design, no abnormal vibration during full-load operation, and meets industrial and municipal environmental protection noise standards. All materials are non-toxic and recyclable, conforming to green power construction standards.

4. Application Scenarios

4.1 Power Grid Construction

It is widely used in urban regional substations, county-level power grid hub stations and rural power grid upgrading and reconstruction projects, serving as the core voltage transformation equipment for medium-voltage power distribution, undertaking the power transmission and distribution task from the main grid to terminal distribution networks, and ensuring the stable power supply of urban and rural residents and public facilities.

4.2 New Energy Industry

It is the key supporting equipment for photovoltaic power stations, wind farms and energy storage power stations. It is used for 35kV boost and voltage regulation of new energy power generation, solving the problems of unstable output and fluctuating voltage of new energy power generation, and realizing efficient grid-connected power transmission of new energy electric energy.

4.3 Large Industrial Production

Suitable for high-power power supply scenarios in chemical industry, metallurgy, mining, papermaking, textile and other industrial parks. It can adapt to long-term continuous operation of industrial production lines and frequent load changes, and provide stable and reliable power guarantee for large industrial equipment and automated production systems.

4.4 Key Infrastructure

It can be used for power supply support of data centers, large hospitals, airports, rail transit and other important infrastructure. With high power supply stability and low failure rate, it meets the high-standard power supply requirements of key facilities that require continuous and uninterrupted power consumption.

5. Product Maintenance and After-sales Service

5.1 Daily Maintenance Guidelines

For daily operation and maintenance, users need to regularly check the operating temperature, noise and voltage and current data of the transformer to ensure it runs within the rated parameter range. For oil-immersed transformers, regularly inspect the insulating oil quality, oil level and sealing condition, clean the dust and foreign matters on the radiator and shell, and check whether the grounding device is firm. For dry-type transformers, regularly clean the surface and winding dust, check the insulation resistance and fan operating status, and avoid long-term overload operation. It is recommended to conduct a comprehensive performance inspection every six months and a professional overhaul every three years.

5.2 Fault Handling Tips

In case of abnormal noise, excessive temperature rise, voltage abnormality and other minor faults during operation, the load shall be reduced in time and the equipment operation status shall be monitored. In case of serious faults such as short circuit, oil leakage and insulation failure, the power supply shall be cut off immediately for shutdown inspection, and no disassembly and maintenance without professional guidance is allowed to avoid secondary damage and safety accidents.

5.3 After-sales Service Guarantee

We provide one-year full warranty and lifelong paid maintenance service for all 35kV class power transformers. Professional technical teams support on-site installation guidance, commissioning and technical training to help users complete equipment put into operation efficiently. For product quality problems occurring during the warranty period, we provide free parts replacement and on-site maintenance services. After the warranty period, we provide cost-effective spare parts supply and regular inspection services all the year round, and respond to user fault reports within 24 hours to ensure the rapid recovery of equipment operation. At the same time, we provide personalized technical support and transformation scheme services according to user's equipment operation and grid upgrading demands.