How to improve the service life of oil-immersed power transformers
05-22 2025 | By:
Oil-immersed transformers play a vital role in the power system, and their reliability and service life directly affect the stability and security of the power grid. In order to extend the service life of oil-immersed power transformers, optimization can be carried out from multiple aspects.
First, regular maintenance is an important measure to extend the service life of Oil-Immersed Distribution Transformer. Maintenance work includes checking the oil level, oil quality and insulation. Regular oil replacement can effectively prevent insulation failure caused by oil deterioration. In addition, the temperature and load of the transformer should be checked regularly to ensure that it operates within the normal range and avoid failures caused by overload and high temperature.
ZTELEC Electric Technology (Zhengzhou) Co., Ltd
Secondly, environmental factors also have a significant impact on the life of Oil-Filled Transformer. Choosing a suitable installation site and avoiding humid, dusty or corrosive environments can slow down equipment aging. At the same time, ensuring good ventilation around the transformer will help dissipate heat and prevent performance degradation due to increased temperature.
In addition, reasonable load management is also key. During use, electricity consumption should be reasonably arranged according to the rated load of oil-filled transformers to avoid frequent startup and shutdown. Overload or frequent load changes will cause heat accumulation inside the transformer, thereby shortening its service life. Therefore, understanding and predicting power demand and scientifically allocating power resources are important strategies for protecting transformers.
In addition, the use of advanced monitoring technology can grasp the operating status of oil-immersed type transformers in real time. Using the online monitoring system, potential problems can be discovered in time and measures can be taken to prevent small faults from evolving into big problems. For example, fluctuations in current and voltage, abnormal changes in temperature, etc. can all be early warned through the intelligent monitoring system, thereby achieving effective risk management.
Finally, training operators should not be ignored. Professional operators can not only operate transformers correctly, but also respond quickly when abnormal situations occur, reducing the risk of equipment damage. Regularly organizing training to improve employees’ professional skills and safety awareness is an important guarantee for long-term and stable operation of transformers.
In summary, improving the service life of oil-insulated transformers requires regular maintenance, environmental management, load control, monitoring technology, and personnel training. Through comprehensive measures, the service life of transformers can be effectively extended and the safe and stable operation of the power system can be ensured.
ZTELEC Electric Technology (Zhengzhou) Co., Ltd – Oil-Immersed Transformers
Introduction
ZTELEC Electric Technology (Zhengzhou) Co., Ltd is a leading manufacturer of high-quality oil-immersed transformers, specializing in reliable and efficient power distribution solutions. With advanced technology, strict quality control, and competitive pricing, ZTELEC serves global customers across industries such as energy, manufacturing, and infrastructure.
oil-immersed type transformer
Oil-Immersed Transformer Series – Models & Specifications
Below is a detailed table of ZTELEC Electric Technology (Zhengzhou) Co., Ltd oil-immersed transformer models and key technical parameters:
| Model | Capacity (kVA) | Voltage Class (kV) | No-Load Loss (W) | Load Loss (W) | Impedance (%) | Cooling Method | Efficiency (%) |
|---|---|---|---|---|---|---|---|
| ZTO-50 | 50 | 10/0.4 | 170 | 1,100 | 4.0 | ONAN | ≥98.5 |
| ZTO-100 | 100 | 10/0.4 | 240 | 1,800 | 4.0 | ONAN | ≥98.7 |
| ZTO-200 | 200 | 35/0.4 | 400 | 2,800 | 4.5 | ONAN | ≥99.0 |
| ZTO-500 | 500 | 35/10 | 700 | 5,500 | 4.5 | ONAN/ONAF | ≥99.2 |
| ZTO-1000 | 1,000 | 35/10 | 1,200 | 10,000 | 6.0 | ONAF | ≥99.3 |
| ZTO-5000 | 5,000 | 35/10 | 4,500 | 35,000 | 10.0 | OFAF | ≥99.5 |
Note: Customized specifications are available upon request.
Why Choose ZTELEC Electric Technology (Zhengzhou) Co., Ltd?
✅ High Efficiency & Low Loss – Optimized design reduces energy waste, ensuring cost savings.
✅ Robust Construction – Durable materials and strict manufacturing standards enhance longevity.
✅ Wide Voltage Range – Supports various voltage levels (up to 35kV) for diverse applications.
✅ Advanced Cooling Technology – ONAN, ONAF, and OFAF cooling methods ensure stable operation.
✅ Global Certifications – Compliant with IEC, IEEE, and other international standards.
✅ Competitive Pricing – Cost-effective solutions without compromising quality.
Call to Action
Upgrade your power distribution system with ZTELEC Electric Technology (Zhengzhou) Co., Ltd high-performance oil-immersed transformers! Contact us today for a customized solution tailored to your needs.
📞 Phone: +86-157 1674 9170
📧 Email: [email protected]
🌐 Website: www.hnztelec.com
ZTELEC Electric Technology (Zhengzhou) Co., Ltd – Powering Your Future with Reliability!
You may also find these interesting:
