ZLSC series dry excitation rectifier transformer
In addition to the advantages of the SC series, this series of unencapsulated coil three-phase dry-type power transformers, the carefully designed coil structure and vacuum impregnation treatment process make the ZL SC series dry excitation rectifier transformer without partial discharge, and during the entire lifetime , No cracking, no drop in insulation level. The high voltage adopts continuous winding, low voltage foil winding, overall vacuum impregnation and curing treatment and high ceramic support, which has a good ability to withstand sudden short-circuit current. Flame retardant, flame-retardant, non-toxic, self-extinguishing, fire-proof. Under the flame of high temperature, ZLSC series dry excitation rectifier transformer has almost no smoke. The insulation material is NOMEX paper, and the insulation level is H level. The insulation layer is thin and uniform, and it has a strong short-term overload capacity. It does not require forced cooling. It can be 120% long-term overload and 140% overload for 3 hours. Because this kind of insulating material is not aging and elastic, it can be fully loaded at 50C. Can be installed in areas close to lakes, seas, and rivers, where the environment is polluted and humid, with high requirements for fire protection, and heavy loads. Petrochemical, nuclear power plants, nuclear submarines and other places.
Product Usage
1. Epoxy resin cast dry-type power transformers are manufactured according to strict process using international advanced design, production and testing equipment. The product has the characteristics of high reliability and long service life.
2. According to different usage environment, shells with different protection levels can be configured or not.
3. This product is suitable for high-rise buildings, commercial plazas, airports, chemical plants, nuclear power plants, ships and other important or special environmental places.
Features
1. High mechanical strength, strong short-circuit resistance, small partial discharge, good thermal stability, high reliability and long service life.
2. Low loss, low noise, obvious energy saving effect and maintenance-free.
3. Good heat dissipation performance, strong overload capacity, can increase capacity operation when forced air cooling.
4. Good moisture resistance, suitable for operation in high humidity and other harsh environments.
5. Perfect temperature monitoring and protection system. Using intelligent signal temperature control system, it can automatically monitor and patrol display the working temperature of the three-phase windings, can automatically start and stop the fan, and have alarm, trip and other function settings.
Environmental conditions
Altitude ≤1000m, ambient temperature: -25C ~ + 40C indoor air-cooled and forced air-cooled transformers, all need to ensure that the transformer has good ventilation. When the transformer is installed in the basement or other environment with poor ventilation capacity, heat dissipation and ventilation devices shall be added. The protection level has IP00, IP20, IP23 and other types. When the altitude is> 1000 meters, the user should specify the altitude, and the design will adjust the temperature rise parameters.
Design and production：
