Power transformers are used in all walks of life
The project cost is different. Compared with the purchase price of capacity transformer， the purchase price of dry-type transformer is much higher than that of oil immersed transformer.
YingyaThe grounding resistance of， high voltage and bottom voltage shall not be less than % (m & omega;) of the original value. The difference between the three-phase mean value of winding resistance measurement at the same temperature shall not exceed %， which shall not exceed % compared with the last accurate measurement result.
High voltage fuse of transformer breaks one phase;
Taravera delarenaNote: in the whole process of safety patrol inspection， the on-site operation and maintenance management staff must use temperature tester or thermal imager to carry out purposeful inspection on the transformer itself， terminal block and other accessories; The sound during the operation of the transformer is a symmetrical current sound. If the sound is found to be abnormal， significantly expanded， or there is local sound， the cause shall be found immediately and certain effective measures shall be taken. If necessary， the load can be reduced or the operation of the transformer can be stopped.
Naturally，YingyaLow voltage transformer， if the oil immersed transformer catches fire， please don"t panic. I firmly believe that the damage will be reduced to a lower level as long as the above methods are effectively rectified. Above is the general process and process that should be paid special attention to in the whole ignition process of the oil immersed transformer. When the oil immersed transformer catches fire，YingyaIntroduction to oil immersed transformer， please be rational to make the oil immersed transformer safer and more efficient.
Seal oil leakage
The hanging core of dry-type transformer is a vital part
Oil sample inspection & mdash; & mdash; the performance parameters such as compression resistance and residue shall be carried out every three years. The long-term overload or overload of the transformer can reduce the cycle time.
For no-load impulse closing of transformer， pay attention to the following matters:
retailerThe noise of dry-type transformer is mainly the vibration noise in operation. This vibration noise is caused by multiple positions， including the vibration of magnetic induction electromagnetic coil. All pay great attention to the solution of vibration when carrying out noise control.
Outdoor sampling shall be carried out in sunny days or dry weather with low environmental humidity. During sampling， it is necessary to resolutely prevent the invasion of dirt such as rain， snow，YingyaTransformer in distribution room， wind and sand.
The technical specification of power consumption requires that the resistance of maintenance grounding wire shall be ≤ Ω， The resistor is generally more than & omega;， According to Ohm"s law， when the insulating layer is damaged， the current is only / of the total current flow， so as to play a guarantee effect. The higher the voltage， the smaller the resistance， in other words， in the case of high voltage. We can care about the power transformer plant and master a lot of professional knowledge.
Causes of fire in power transformer
The cost is reasonableNoise solution of dry-type transformer
What is the cause of power transformer core failure?
The heat discharge pipe of heat pipe radiator is generally made of slotted seamless steel pipe after flattening by stamping die. When the heat discharge pipe is bent and welded by electric welding， oil leakage is often caused. This is due to the supporting force on the surface of the pipe and the working pressure on the inner cavity when stamping the heat discharge pipe.
YingyaTurn off the gate valve (butterfly valve) of the left and right tablet computers of the heat pipe radiator to isolate the oil in the heat pipe radiator from the oil in the tank so as to reduce the working pressure and leakage. After the leakage location is determined， and then Fushi blue raw materials shall be selected for sealing treatment.
Power transformers are also used for testing appropriate surface treatment shall be carried out， which are called test power transformers. They can be divided into inflatable， dry test and other test power transformers. They are the basic test equipment for communication AC compression test for many consumers such as power stations， power supply bureaus and scientific research institutions. According to the specifications of the Bureau of quality supervision， It is used to carry out insulation compressive strength test under required current for various electrical products， electrical components and insulating raw materials.
Avoid the load operation of power transformer: if the load operation is long-term， it will lead to the scalding of solenoid coil， slow aging of insulation， two-color short circuit fault or short circuit to ground fault and dissolution of oil.
