A specific part of dry-type transformer is the hanging core of dry-type transformer. The hanging core of dry-type transformer is a vital component. How to carry out the hanging core?
How to reduce the failure of dry-type transformer?
Belat selkaMaintenance contents of power transformer
If the above provisions are not met， the problem of dryness shall be solved. Generally， it is OK to operate the centrifugal fan for a period of time. Check the cleanliness of the power transformer. If too much dust is found， it must be eliminated to ensure indoor ventilation and avoid insulation penetration. In particular， pay attention to cleaning the insulators of the power transformer and the top and bottom ends of winding resistance installation. Portable centrifugal fan or dry air compression or N shall be used to clean the dust in indoor space that is not easy to reach， such as ventilation duct， after opening the sealing cover， use the cleaned and dried rubber stopper to the oil. At the same time， clamp the branch pipe with your thumb， and loosen your thumb to make the oil enter the pipe，
(IV) the transformer on the column shall be stable and firm and the waist rail shall be & phi; mm galvanized wire shall be wound over turns in an even number. The iron wire shall not have a connector and shall be tightened after winding. The distance between the waist rail and the energized part shall not be less than .m.
For example， in the s， the radio programs applied by every family in the countryside had a ground wire， and they were often wet with tap water. Protective grounding is to bury the copper plate of metal electrical conductor in the soil layer， and then lead a point of it out of the road with transmission line， which completes the grounding protection. The grounding wire specifies the grounding wire resistance ≤ Ω. Grounding protection is a safeguard measure adopted to avoid safety accidents when using household appliances， office and other electrical equipment.
Oil immersed transformer
The insulation of the through core anchor bolt clamping the iron core is damaged， resulting in a short circuit fault between the silicon steel sheet of the iron core and the through core anchor bolt;
After the test， connect the data signal contact of the automobile relay with the alarm circuit， the pull-in contact with the opening circuit and adjust the overcurrent protection value.
Convenient and efficientSolenoid insulation deterioration
In the whole process of transmitting electromagnetic energy in the power supply system， it will inevitably cause the loss of voltage and output power. When transporting the same output power， the voltage loss is inversely proportional to the voltage， and the output power loss is inversely proportional to the square meter of voltage. The transformer is used to increase the voltage and reduce the closing damage.
The main reason is that the welding quality of electric welding is poor， there are empty welding， open welding， needle holes， sand holes and other shortcomings in welding. The oil transformer is easy to be covered with welding powder and paint when leaving the factory， and the potential safety hazards are exposed after operation. In addition， the electromagnetic induction vibration will crack the electric welding and lead to leakage.
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.
Quality assuranceDue to poor sealing， it will lead to common faults of oil leakage.
After the power transformer has been used for a long time 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， common faults of iron core will occur. Don"t worry. Contact the transformer manufacturer， and the manufacturer will assign professional technicians for inspection. The main reasons are as follows:
In order to better carry out the experiment of power transformer oil， it is necessary to sample the power transformer oil. The sampling work should be carried out on a dry sunny day. The commonly used containers and sampling methods during sampling do immediate harm to whether the specific quality of the oil can be truly reflected. The oil sample for AC voltage withstand test shall not be less than .kg， and the oil sample for simplified experiment shall not be less than kg.
Belat selkaOverload or short circuit occurs inside the power transformer. Flammable insulating raw materials are endangered by high temperature and electric isolation， resulting in a lot of steam bodies，Belat selkaComputer temperature controller for dry-type transformer， greatly increasing the internal working pressure of the power transformer， causing the ignition of the casing， causing large-scale power failure，Belat selkaDistribution transformer maintenance， endangering all normal production， manufacturing and activities. There are three reasons for fire accidents in the operation of power transformers.
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!
The iron core of power transformer is made of high-quality crystallized hot-rolled ferrite core，Belat selkaList of loss standards for dry-type transformer， which is stacked at the degree fully inclined multi-step interface. The surface is covered with epoxy resin adhesive cable sheath coating， which is resistant to corrosion and rust， and has sound insulation and noise reduction.
