In today’s booming power industry, 600MW large generator sets are the key force of power supply, and their stable operation is crucial. As the core equipment in the generator set, the transformer undertakes the important tasks of voltage conversion and power transmission. Among the many equipment that ensure the safe operation of the transformer, the transformer pressure relief valve YSF16-55/80KKJ is like a loyal “safety guard”, silently playing an irreplaceable role.

I. Pressure challenges faced by transformers in 600MW large generator sets

During the operation of 600MW large generator sets, transformers will face many complex working conditions. On the one hand, during the power conversion process, the transformer will generate a lot of heat due to the resistance loss of the winding, the hysteresis and eddy current loss of the iron core. This heat will increase the oil temperature inside the transformer, which will cause the volume of the oil to expand, and the pressure inside the oil tank will increase. During normal operation, this pressure fluctuates within a certain range, but in some abnormal conditions, the pressure may rise sharply.

On the other hand, when a fault occurs inside the transformer, such as a winding short circuit or poor core grounding, an arc will be generated at the fault point. The high temperature of the arc will rapidly decompose and vaporize the surrounding insulating oil, producing a large amount of gas. These gases accumulate in the limited tank space, causing the internal pressure of the tank to rise sharply instantly. If these excessive pressures cannot be released in a timely and effective manner, the transformer tank may deform or even burst due to the huge pressure, which will not only cause serious damage to the equipment, but also cause serious safety accidents such as fires, posing a great threat to the stable operation of the entire generator set and the safety of personnel.

II. Working principle and key features of YSF16-55/80KKJ

The transformer pressure relief valve YSF16-55/80KKJ has a unique working principle and a series of key features, which enable it to be competent for the task of ensuring the safe operation of the transformer.

From the working principle, the YSF16-55/80KKJ is equipped with a precise pressure sensing device. When the internal pressure of the transformer tank gradually increases and reaches the preset opening pressure value, the valve flap of the pressure relief valve will open quickly, and the high-pressure oil and gas in the tank will be quickly discharged through the valve port, thereby achieving the purpose of releasing pressure. When the pressure drops to the set closing pressure value, the valve flap will automatically close again, preventing the oil and gas in the tank from continuing to flow out, and keeping the internal pressure of the tank stable within the normal range.

In terms of key characteristics, the pressure relief valve has extremely high pressure response sensitivity. It can sense the slight changes in the internal pressure of the transformer tank in a very short time and quickly make opening or closing movements. This rapid response capability ensures that the pressure can be released in time and effectively at the moment when the transformer pressure rises abnormally, avoiding damage to the transformer caused by excessive pressure.

In addition, the sealing performance of YSF16-55/80KKJ is excellent. During normal operation, it can effectively prevent the leakage of oil and gas in the tank, ensuring the stability of the pressure inside the transformer and the purity of the oil quality. At the same time, its good corrosion resistance ensures that its performance and reliability will not be affected by the erosion of oil and environment during long-term operation.

III. YSF16-55/80KKJ’s safety guarantee mechanism in 600MW generator units

In 600MW large-scale generator sets, the transformer pressure relief valve YSF16-55/80KKJ has built a perfect safety guarantee mechanism from multiple aspects.

First, in daily operation, it monitors the internal pressure of the transformer tank in real time. Even in normal operation, YSF16-55/80KKJ can sense the small fluctuations in the internal pressure of the transformer due to factors such as load changes in time. Once the pressure approaches the set opening value, it will be on standby, ready to open and release the pressure at any time to ensure that the pressure is always within the safe range and avoid continuous accumulation of pressure.

Secondly, when a sudden fault occurs inside the transformer, such as a short-circuit fault causing a sharp rise in pressure, the rapid response characteristics of YSF16-55/80KKJ play a key role. It will open instantly, quickly discharge a large amount of high-pressure oil and gas from the tank, and quickly reduce the internal pressure of the tank. This process can effectively reduce the pressure on the oil tank, prevent the oil tank from deforming or bursting due to excessive pressure, and thus protect the core components of the transformer from damage.

Furthermore, the signal transmission function of YSF16-55/80KKJ provides timely and accurate equipment status information for operation and maintenance personnel. When the pressure relief valve is activated, it will send a signal, which can be transmitted to the monitoring system or the terminal device of the operation and maintenance personnel. After receiving the signal, the operation and maintenance personnel can quickly understand that the transformer has abnormal pressure, and promptly inspect and repair the transformer to avoid further expansion of the fault.

In addition, the reliability and stability of YSF16-55/80KKJ are important foundations for ensuring the safe operation of the transformer. It has undergone strict quality inspection and actual operation verification, and has the ability to work stably for a long time. During the long-term operation of the 600MW large-scale generator set, it can always maintain good performance, and will not affect the control of the transformer pressure due to its own faults, providing reliable guarantee for the safe operation of the transformer.

Transformer pressure relief valve YSF16-55/80KKJ plays a pivotal role in 600MW large-scale generator sets. With its unique working principle, excellent performance characteristics and perfect safety guarantee mechanism, it has become a key equipment to ensure the safe operation of transformers. Scientific and reasonable maintenance and management work is an important support to ensure its long-term and stable function. In the future, with the continuous development and upgrading of power technology, it is believed that YSF16-55/80KKJ and similar equipment will continue to improve and innovate, providing a more solid guarantee for the safe and stable operation of the power system.

When looking for high-quality, reliable pressure relief valves, YOYIK is undoubtedly a choice worth considering. The company specializes in providing a variety of power equipment including steam turbine accessories, and has won wide acclaim for its high-quality products and services. For more information or inquiries, please contact the customer service below:

E-mail: sales@yoyik.com
Tel: +86-838-2226655
Whatsapp: +86-13618105229
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