Model Description:

Technical Parameters：

1. Rated Capacity: 100-2500kVA;

2. Rated Voltage: Primary Voltage of 10kV and 6KV

                            Secondary Voltage 0.4kV and others:

3. Rated Frequency: 50Hz;

4. Number of Phases: 3 phases;

5. Cooling Mode: AN/AF;

6. Temperature Resistance Level of the Insulation Materials: Level H;

7. For Technical Performance Data and Insulation Level, see Table 1 and 2.

Table 1 Performance Parameters of the Dry-type Transformer with Primary Rated oltage of 6kV, 10kV

Table 2 Insulation Level

The SGH10 Series Transformer adopts an insulation system with DuPont NOMEX paper as the main insulating medium. It maintains an excellent electrical performance throughout the life of the transformer. NOMEX paper is not easy to age and has shrinkage resistance, compression resistance and strong elastic force. Therefore, it can ensure that the coil can still maintain a compact structure and withstand short circuit after using it for years. It has a high safety and overload capacity, free of flammability and toxic gas; and it doesn’t support combustion. It is convenient for repair and maintenance; and is insensitive to humidity, dust and pollution. Partial discharge is low, and there is no possibility to be 'cracked'. The coil adopts a pie type structure and a vacuum impregnation process, so as to improve mechanical strength and insulation strength of the coil. A bottom blowing structure of through-flow fan is adopted for the body, so as to improve heat emission efficiency. It is flexibly designed, and can be made of any specification required according to customer's requirements.

1. Oil-free, pollution-free, flame retardant and fireproof.

2. Low loss, high efficiency and low noise.

3. Small partial discharge capacity (generally below 10PC), high reliability. It can guarantee long-term safe operation, and the life span can be up to 30 years.

4. It can resist cracking and temperature changing, and has high mechanical strength and strong resistance to short circuit capability.

5. The moisture-proof performance is good, it can be in normal operation at the humidity of 100%, and it can be put into operation without drying after stoppage.

6. The independent transformer chamber is not required, it is not required to lift the core for maintenance, and the load bearing beam is not required, which saves floor area for civil engineering; It is oil free, will not generate toxic gas, and will not pollute the environment either. The oil sump and other auxiliary buildings are not required, and the construction cost of construction cost is reduced.

7. Installation is convenient without commissioning, and maintenance is almost not required; it is not required to replace and check oil seal, and the operation and maintenance cost is low.

1. The elevation shall not exceed 1,000m

2. Ambient Temperature      Maximum temperature                               +40℃/104°F

                                            Maximum daily average temperature         +30℃/86°F 

                                            Maximum annual average temperature      +20℃/68°F

                                            Minimum temperature                                 -30℃/-22°F (applicable for the outdoor transformer)

                                            Minimum temperature                                 -5℃/23°F (applicable for the indoor transformer)

3. The waveform of the supply voltage is similar to sine wave

4. The supply voltage connected with the multi-phase transformer shall be approximately symmetrical