As an important part of the power system, the safe operation of the transformer is directly related to the safety and stability of the entire power grid. Inside the transformer, excessive pressure may be generated due to various reasons. If it is not controlled, it may lead to serious accidents. Therefore, the pressure relief valve YSF9-55/130KJTHB becomes one of the key components for transformer safety protection. When the pressure inside the transformer exceeds the preset value, the pressure relief valve will automatically open and release part of the pressure, thereby protecting the transformer from damage. Once the pressure drops to a safe level, the pressure relief valve will automatically close and return to its initial state.

Today we will introduce the operating conditions and maintenance methods of the YSF9-55/130KJTHB pressure relief valve in detail to help power plant users better understand and use the equipment. The operating conditions of the pressure relief valve YSF9-55/130KJTHB mainly depend on the pressure changes inside the transformer. Specifically, the pressure relief valve will act in the following situations:

Overload condition: When the transformer is overloaded, the internal temperature rises and the oil volume expands, resulting in a pressure increase.

Short circuit fault: When an internal short circuit fault occurs in the transformer, a large amount of heat will be generated, which will also cause the internal pressure to rise rapidly.

Cooling system failure: If the cooling system of the transformer fails, resulting in poor heat dissipation, it will also cause the internal temperature to rise, thereby generating excessive pressure.

Oil deterioration: As the transformer runs longer, the oil may gradually deteriorate, forming a gel-like substance that blocks the oil channel and causes pressure to rise.

External factors: Extreme weather conditions such as lightning strikes may also cause abnormal pressure rise inside the transformer.

In some special cases, such as severe natural disasters or accidents, the pressure relief valve may require emergency inspection and maintenance. In this case, the transformer should be stopped immediately, the pressure relief valve should be checked for normal operation, and appropriate measures should be taken according to the actual situation.

Safety first: Before performing any maintenance operations, ensure that the transformer is completely de-energized and discharged to avoid the risk of electric shock.

Follow procedures: All maintenance activities should strictly comply with the manufacturer’s instruction manual and relevant safety regulations of the power industry.

Professional training: Personnel engaged in maintenance work must have received relevant training and have the corresponding skills and knowledge.

Record maintenance history: Establish a detailed maintenance file to record the specific circumstances of each maintenance for future inquiries and reference.

Through the above introduction, we can see the important role of the pressure relief valve YSF9-55/130KJTHB in the transformer and the importance of its maintenance. Proper maintenance can not only ensure that the pressure relief valve plays a role at the critical moment, but also extend the service life of the transformer and ensure the safe operation of the power system.

Yoyik offers various types of valves and pumps and its spare parts for power plants:
Skeleton oil seal 589332
straight globe valve supplier WJ25F3.2P
12 volt solenoid coil J-110VDC-DN10-DOF/20D/2N
installing shut off valve WJ25F-3.2P
EH oil shock-absorbing pipe clamp SP320PA-DP-AS
stop check valve manufacturers WJ50-F1.6P
stainless steel screw pump HSNH 210-36
Three screw pump HSNH440
Bellows valves WJ10F-1.6
Oring A156.33.01.10-50X3.1
hydraulic accumulator price NXQ-A-4L/10-L-Y
VALVE SOLENOID 4WE6D62/EG110N9K4/V
Pump coupling GPA2-16-E-20-R6.3
Gasket DN80 P2120A-55C P2120A-55C
BFP reset solenoid valve 3WE6A61B/CW220RN9Z5L
3 way servo valve PSSV-890-DF0056A
different types of solenoids J-220VDC-DN10-D/20B/2A
vacuum pump nearby P-1764-1
solenoid 24vdc DG4V 3 0A M U D6 60
piston pumps PVH074R01AA10A250000001001AB010A