Due to poor sealing， generally the sealing of box edge and machine cover is sealed with acid-base resistant rubber rod or rubber plate. If the joint is not solved well， it will lead to common faults of oil leakage.
Falling foreign matters and piercing
BirA suvalThe 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.
The whole process of hanging the core of dry-type transformer is more critical， and there are many situations that the hanging core of dry-type transformer must pay special attention to. Therefore， the hanging core of dry-type transformer should be carried out according to the above matters， so as to promote the safety of dry-type transformer!
moleWhen sampling in bulk gasoline barrels， samples shall be selected according to % of the number of gasoline barrels， but not less than barrels. When sampling in batches of small and medium-sized pails or bottles， samples shall be taken according to % of the total number of barrels (bottles).
Noise pollution control and prevention measures of dry-type transformer
Avoid aging and damage of power transformer iron core insulation: aging of iron core insulation or damage of waterproof sleeve holding anchor bolt will cause large vortex of iron core， and long-term scalding of iron core will lead to insulation aging.
Oil leakage at looper flange
Dry type transformer is a common electrical equipment， which can be used to convert the alternating voltage of one standard value into another standard value of the same frequency. The step-up dry-type transformer is used to convert the low-grade alternating voltage into another high-grade alternating voltage of the same frequency. It is widely used in high-frequency industries， such as variable frequency power supply.
In relay protection dry-type transformer， the disconnection of the fault point is related to each other. In a word，BirA suvalPeriodic voltage regulator for maintenance of oil immersed transformer， if there is any problem at a certain point， it will affect the whole power circuit
Direct materialThe no-load impulse closing working voltage shall not exceed % of the working voltage marked on the gear of the transformer， the closing frequency shall be times，BirA suvalImpulse test of dry-type transformer， the delay time after power receiving shall not be less than min， and the time interval of each closing shall not be less than min.
Power transformers are also used for testing， which are called test power transformers. They can be divided into inflatable， oil transformer，BirA suvalAmorphous alloy oil immersed transformer， 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.
What about oil immersed transformer fire?
Sound insulation treatment of main engine room the key to sound insulation treatment of dry-type transformer room is to start from three levels: window， and apply sound insulation window， silencing cylinder， floating concrete floor damping pad and other sound insulation and noise reduction commodities to achieve sound insulation effect.
The cost is reasonableThe manufacturing process of dry-type transformer is very process， and must be technically as a certain pillar. Only in that way， the performance of dry-type transformer will be more stable. What are the common manufacturing processes and steps of dry-type transformer?
Power saving analysis of transformers has always been based on whether the utilization rate of transformer capacity is less than a certain standard value. Whether transformers are environmental protection and energy saving specifications. In fact， sometimes such specifications are not saving electromagnetic energy， but consuming electromagnetic energy.
The conductor insulation of power transformer is the main part of internal insulation. Some conductors should pass through the middle of electromagnetic coil， or between electromagnetic coil， iron yoke clamp and automobile oil tank wall. Therefore， it is necessary to ensure that this kind of conductor has sufficient insulation compressive strength， and the rising seat and waterproof sleeve installed with vent plug shall be deflated on time.
It will also produce many faults effectively deal with various faults of oil immersed transformer， make full use of the performance indicators and advantages of oil immersed transformer， and continuously improve the safety factor of oil immersed transformer. Ignition is a common fault of oil immersed transformer. The key fault of oil immersed transformer is short-circuit fault， and short-circuit fault is more general.
Under normal conditions， the actual operation of the oil immersed transformer shall be undertaken by the on-site operation and maintenance management staff. Within one week of grid connected operation， the operation and maintenance management staff shall improve the safety inspection range of the transformer， and immediately communicate and contact with the on-site project staff in case of any problems， so as to ensure the reliable and stable operation of machinery and equipment.