QingdaoOil immersed transformer 2500kVAWhat are the contraindications

Analysis of common faults of oil immersed transformer:The insulation distance between the winding and the iron yoke of power transformer is much larger than that between the windings, because the electric field between the winding and the iron yoke is far away and not as symmetrical as that between the windings. In the electric field in the middle of the winding,QingdaoStructure diagram of oil immersed transformer, most of the cables are in phase with the insulating cylinder (plate) in the middle of the winding, that is, the disconnection component of the electric field is small.Qingdao, and the selected structures and connections are also different. Then, what are the groups of dry-type transformers? How to carry out the connection? Or basically introduce it with the network of dry-type transformer manufacturers.Al Yamun,Dry type transformer manufacturerNoise dispersion of dry-type transformerAnalysis of common faults of oil immersed transformer:

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,QingdaoTransformer power three-phase, two-color short circuit fault or short circuit to ground fault and dissolution of oil.TransformerThe hanging core of dry-type transformer is a vital partQuality management,The hanging core of dry-type transformer is a vital partWhat is the wiring mode of dry-type transformer?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.

On load commissioning:Recommendation and consultation,Fault judgment of power transformerThe transformer manufacturer shall not use hand touch method to detect energized high-voltage equipment, such as transformer in operation and neutral grounding equipment of arc suppression coil. For the equipment without power supply and whose shell is reliable grounding device, the temperature or temperature rise must be tested by hand. The secondary equipment can be inspected by hand touch method when it is hot and vibrated.The voltage regulating tap changer is not in place or poorQingdaoIn the electric field of the winding to the yoke,QingdaoBasic structure of power transformer, there must be a strong line breaking component, so that sliding flash charge and discharge may occur at a lower current. In order to better solve this disadvantage, the appearance of the insulating parts between the winding and the iron yoke should be the same as that of the medium horizontal plane of the winding to the iron yoke insulation as far as possible, so as to reduce the electric field component intersecting with the insulating parts.Noise solution of dry-type transformer(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.