Execution Standard: IEC 726, GB1094.11-2018

Specifications:

1. Voltage Level: 15 to 20 kV;

2. Pressure Regulation Mode: no excitation voltage regulation or on-load voltage regulation;

3. Tap Range: ±5%, ±2X2.5% or ±3X2.5%;

4. Capacity Range: 30 to 2500 kVA;

5. Frequency: 50Hz, 60Hz;

6. Single Phase, Three Phase;

7. The Junction Group Label: Yyno or Dyn11 (or according to user requirements);

8. Short-Circuit Impedance: in accordance with national standards or according to user requirements;

9. The Use of the Environment: relative humidity of 100%, the ambient temperature is not higher than 45°C (or according to user requirements);

10. Cooling Method: AN or AF;

11. Protection Level: IP00, IP20, IP23 (or according to user requirements);

12. Insulation Heat Resistance Grade: Class F, Class H;

13. Insulation Level: 20kV class product power frequency withstand voltage 50kV, impact withstand voltage 110kV

14. Rating Plate: YUEBIAN brand or Customer brand.

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.

Professional Service of 20KV series Cast Resin Dry Type Transformer

Pre-Sales Service: provide design consulting service in accordance with customer requirements, and provide separate design scheme according to different customer markets to make products more competitive.

After Sales Service:

• We can provide on-site installation instructions, commissioning and after sales service. (Fee-for-service)

• You will get free lifelong technical advice from our highly qualified engineers. This will give you a lot of confidence when buying from our company.

• We guarantee the ongoing supply and preferential prices for spare and wearing parts.

• Our highly qualified team of service technicians are well equipped to keep your transformer operating at high efficience at all times.