20KV Series Cast Resin Dry Type Transformer
Description
Technical Parameters
Henan GNEE Electric Co., Ltd. is one of the leading manufacturers and suppliers of 20kv series cast resin dry type transformer in China, also supports customized service with low price. Welcome to buy discount 20kv series cast resin dry type transformer for sale here from our factory. If you have any enquiry about pricelist, please feel free to email us.
GNEE Steel Silicon Steel Transformer
The dry type transformer is called an epoxy resin casting transformer and uses epoxy resin as an insulating material. The high and low voltage windings are made of copper strip (foil). The epoxy is cast and cured in a vacuum to form a high strength FRP structure. The insulation grade is F and H. Epoxy dry-type transformer has the characteristics of good electrical performance, strong anti-lightning capability, strong short-circuit resistance and light weight. A temperature display controller can be installed to display and control the operating temperature of the transformer windings to ensure the normal life of the transformer.
Grain Oriented Silicon Steel Transformer
| Voltage Level: | 15 to 20 kV |
| Pressure Regulation Mode: | no excitation voltage regulation or on-load voltage regulation |
| Tap Range: | ±5%, ±2X2.5% or ±3X2.5% |
| Capacity Range: | 30 to 2500 kVA |
| Frequency: | 50Hz, 60Hz |
| Execution Standard: | IEC 726, GB1094.11-2018 |
| The Junction Group Label: | Yyno or Dyn11 (or according to user requirements) |
| Short-Circuit Impedance: | in accordance with national standards or according to user requirements |
| The Use of the Environment: | relative humidity of 100%, the ambient temperature is not higher than 45°C (or according to user requirements) |
| Cooling Method: | AN or AF |
| Protection Level: | IP00, IP20, IP23 (or according to user requirements) |
| Insulation Heat Resistance Grade: | Class F, Class H |
| Insulation Level: | 20kV class product power frequency withstand voltage 50kV, impact withstand voltage 110kV |
| Rating Plate: | GNEE brand or Customer brand |
Non Oriented Silicon Steel Transformer
Features of 20KV series Cast Resin Dry Type Transformer
•Safe, fireproof, non-polluting, can be directly operated at the load center;
•Adopting domestic advanced technology, high mechanical strength, strong resistance to short circuit, small partial discharge, good thermal stability, high reliability and long service life;
•Low loss, low noise, obvious energy saving effect, maintenance free;
•Good heat dissipation performance, strong overload capacity, and increased capacity operation when forced air cooling;
•Good moisture resistance, suitable for high humidity and other harsh environments;
•Dry-type transformers can be equipped with a complete temperature detection and protection system. The intelligent signal temperature control system can automatically detect and patrol the respective working temperatures of the three-phase windings, automatically start and stop the fan, and have alarm, trip and other function settings;
•Small size, light weight, less floor space and low installation cost.
•45° Full Oblique Step Seam Core
The core adopts imported high-magnetic high-quality grain oriented cold-rolled silicon steel sheet, 45° full-slant stepping joint, special square tube drawing structure, the core column is banded with insulating tape; the surface is coated with special resin to prevent moisture Rust, effectively reducing no-load loss, no-load current and core noise.
•Multi-Layer Segmented Cylindrical High Voltage Coil
The high-voltage winding conductor is wound with a copper conductor of Class F insulation, and is made of a long and short cut glass fiber mat as a reinforcing filler, and is cast in an epoxy resin mixture under vacuum (1-3 mbar). The partial discharge phenomenon is effectively suppressed, and the partial discharge amount does not exceed 10 PC.
•Longitudinal Airway Foil Structure Low Voltage Coil
The low-voltage coil is made of high-quality foil conductor on the automatic foil winding machine, argon arc protection welding, high welding precision; pre-dip DMD as interlayer insulation, inner and outer pre-impregnated glass cloth as insulation, upper and lower ends sealed with epoxy resin, then the curing oven is solidified as a whole, and the moisture resistance is good;
•Rugged and Beautiful Protective Casing
IP20 prevents solids larger than 12mm in diameter from entering accidental impact. IP23 not only has the function of IP20, but also prevents the inflow of water droplets within 60° of the vertical line. It is suitable for outdoor installation and can be customized.
•Perfect Temperature Protection Control Device
The overheat protection device mainly realizes transformer temperature detection and control through a PT thermistor embedded in a low voltage coil. During the operation of the transformer, the three-phase winding temperature value is displayed on the tour; the temperature value of the hottest one-phase winding is displayed; the temperature alarm trips; the sound and light warning, the fan start; the fan overload protection and the computer interface.
Distribution Transformer Silicon Steel
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