1. Brief Description
Along with the growth of power load, 10KV power distribution system has failed to meet the requirements, and increasing the voltage from 10KV to 20KV may result in three-fourth reduction in line energy loss, save the transformer substation number and land and reduce the line and corridor lamp resources. In the process of transforming from 10KV system to 20KV system, there is such situation that the 10KV power supply system needs to be transformed to 20KV system after it is used for a short period of time. This product may convert between 10KV and 20KV voltages, and the user doesn’t need to make second input, thus saving the investment.
2. Application Scope
The product applies to the areas where the load density is high and the power demand grows rapidly, the emerging areas or the areas where the infrastructure of present power grid is weak, as well as the petrochemical (railway, coal mine) industries, public places and combined transformer substations which have high safety requirements.
3. Model Description
GB1094.1, GB1094.2, GB1094.3, GB1094.5, GB1094.11
IEC 60076-1:2000, IEC 60076-2:1993, IEC 60076-3:2000, IEC 60076-5:2006, IEC 60076-11
GB/T 10228, GB20052, etc
5. Normal Service Conditions
Height above sea level: Not greater than 1,000m;
Ambient temperature: Maximum temperature: +40℃;
Maximum daily average temperature: +30℃;
Maximum annual average temperature: +20℃;
Minimum outdoor temperature: -25℃;
Installation environment: ground acceleration caused by earthquake: ag<2m/s
1. After converting between 10KV and 20KV, both junction group and tapping voltage remain unchanged.
2. With reasonable structure, there are no idle turns when the transformer runs at either voltage.
3. The coil is resin-cast, with good overall mechanical strength, thus improving the ability of the transformer to withstand the short circuit.
4. With very good humidity resistance and corrosion resistance, the product is especially suitable to work in extremely harsh environment, and may be put into operation again without drying after stopping operation.
5. Low partial discharge and long operation life.
6. Free from oil and pollution, fire-retardant, flame-retardant, self-extinguishing and fireproof.
7. Convenient installation, free from debugging and maintenance, and low operation cost.
8. Perfect temperature protection control system provides reliable guarantee for the safety of transformer.