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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 F

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 Voltage of 6kV, 10kV

Table 2 Insulation Level

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 capability to short circuit.

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. An independent transformer chamber is not required, it is not required to lift the core for maintenance, and the load bearing beam is not required as well, which saves floor area for civil engineering; It is oil free, which will neither generate toxic gas nor pollute the environment. The oil sump and other auxiliary buildings are not required, so the construction cost is reduced.

7. Installation is convenient and commissioning free, and maintenance is almost not required; it is not required to replace and check oil seal, so the operation and maintenance cost is low.

It is safe, flame-resisting, fireproof and free of pollution, and can be directly installed at the load center. It is maintenance-free, installation is simple and convenient, and the comprehensive operating cost is low. 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 pre-drying after stoppage. The loss is low, the partial discharge is low, the noise is small, the heat-sinking capability is strong, and it can operate at 150% rated load at the forced air cooling conditions.

It is equipped with a perfect temperature protection control system, which provides reliable guarantee for safe operation and high reliability. According to the research on the products that have been put into operation, the product reliability indicators have reached the international advanced level.

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