On load commissioning:
Oil leakage of heat pipe radiator
Gatz mallockWith Vietnam and Malaysia， China"s first UHV transmission experimental demonstration project， China Transformer Corporation has entered a breakthrough in the development trend. The commodity voltage grade and volume rank first in the world， occupying the main technical position of the industry development trend. In addition， it has promoted the continuous improvement and perfection of the technology of low-voltage transformers.
The capacity and working voltage are different. The dry-type transformer is generally suitable for distribution equipment. The capacity is generally below kVA and the working voltage is below KV， which also ensures the rated voltage of kV; Oil immersed transformers are generally suitable for distribution equipment.
CurryIf 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， such as ventilation duct， and there shall be no dirt.
The raw materials of Fushi blue can be used for bonding， so that the overall oil leakage of the connector can be greatly controlled; If the actual operation is convenient， the metal shell can also be bonded at the same time to achieve the purpose of leakage treatment.
There are also many problems to pay attention to in the preventive measures and process of dry-type transformer damping. What are the key effects and functions of dry-type transformer damping and the corresponding preventive measures? Let"s master and consult in detail with the small editor of the dry-type transformer manufacturer.
Equipped with a temperature controller， platinum thermistor (pt) is placed beside the embedded hole on the top of the low-voltage solenoid coil to test the winding resistance temperature rise of the transformer， stop the cooling centrifugal fan， set up common problem alarm， overtemperature alarm and overtemperature tripping effect， and provide reliable overvoltage protection machinery and equipment for the dry test transformer， so as to test the safety performance of the transformer operation.
How is the quality level of dry-type transformer compared with foreign countries?
Performance and main parameters of common metal composites， various welding processes and machinery and equipment， preparation treatment of thick steel plate， blanking process， production and manufacturing process and quality standards of automobile oil tank，Gatz mallockVoltage transformer， riser， coupling and oil storage tank cabinet， welding leakage test and NDT technology， surface treatment process and quality standards copper， Production process and quality standard of aluminum shield; Body suit iron insertion process， wire installation process， body dryness solution and dry transformer oil solution process， vacuum pump oil immersion， general installation process， leakage test and leakage detection process and quality standards. Performance parameters of key work clothes， machinery and equipment of each process flow; The natural working environment is basically regulated.
Project scopeNoise solution of dry-type transformer
For the installation of lightning rod， it is very easy to damage the relay protection inside and outside of dry-type transformer by lightning. If it is a serious situation， it is very easy to cause fire accidents， power failure， damage to machinery and equipment， etc.
If you want to check the activated carbon fiber for the hanging cover， first take out the low-voltage waterproof sleeve and the on load transformer power switch， then lower the bell cover anchor bolt of the large cover， and count the spacing and specifications for easy reinstallation. At the same time wear round steel from top to bottom in the surrounding screw holes， stop the lifting，Gatz mallockCapacity specification of power transformer， stabilize the bell cover， and check the bearing capacity of the lifting core， center of gravity and Jack. After everything is normal，Gatz mallockPower transformer impedance， lift it again until the bell cover exceeds the relative height of the body， and rotate the crane to place the bell cover on the clean skid.
The iron core of power transformer is made of high-quality crystallized hot-rolled ferrite core， 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.
RangeWhat is the wiring mode of dry-type transformer?
Relevant responsible persons of the transformer Federation of China Household Appliance Industry Association show that the development prospect of transformers in China in the future is still the development trend of environmental protection， fire safety and explosion-proof and high reliability. There are two key development prospects: one is the development trend of high voltage and high voltage low noise， especially kV and kV. The second is the development trend towards environmental protection， energy conservation and miniaturization. The former key is applied to the long-distance substation project route， and the latter key is applied to the substation project route in big cities.
The project cost is different. Compared with the purchase price of capacity transformer， the winding of oil immersed transformer is generally divided into multiple modules， and each module is replaced by an equivalent circuit， and its power circuit includes an inductance and vertical capacitance， a capacitance to ground or capacitance between windings， They also have mutual inductors between the inductors of each module， and collect the chain Internet as the equivalent power circuit of oil immersed transformer. The precision of the conclusion can completely meet the needs of practical projects.
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.
Difference between dry-type transformer and oil immersed transformer:
