ZGS-F/35 Combination transformer for wind power ge

Series ZGS-F/35 of combination transformer for wind power generation (hereinafter named combination transformer) is a special device that raises the voltage output (0.6 to 0.69kV) of wind power generator to 35kV and then realizes the grid-connected output. It is distinctive from traditional cabinet transformer station because it encapsulates high-voltage load switches, fuses, high-voltage elements, transformer and non-exciting shunting switches in two independent oil cabinets. The structure turns compact. The transformer can match low-voltage distribution in accordance with demands. This series is applicable for different wind power plants and ideal accessory of wind power generation system. 1. Cooling conditions: air cooling 2. Working environment. This series is used outside within the temperature range from -25°C to +40°C. The local elevation is not higher than 1000m. Average temperature is below 30°C every month and up to 20°C every year. When it is 25°C, the relative humidity in air does not exceed 95% and monthly even is 90% at most. Acceleration does not exceed 0.3g horizontally and 0.15g longitudinally. The installation environment must be free of obvious dirt, explosive and/or corrosive gas and dust and serious vibration or shock. In addition it must be installed on the flat cement platform or other solid platforms. Note: In case of deviation from specifications, please consult us. 1. Small volume and compact structure facilitates the installation. 2. Wholly-sealed and insulated construction guarantees the personal safety reliably. 3. Applicable for both loop-network and terminal and easy switchover. 4. Low damage and noise offers superior performance. 5. Anti-burglar structure. 6. Low temperature rise and strong overload capacity. Symbols of types ZFS Combination three-phase transformer ZZ: terminal (H: loop network) F Special for wind power generation Rated voltage at the high-voltage side(kV) Rated voltage at the low-voltage side (kV) Rated capacity of transformer(kVA) Number of plans Performance parameters Name of elements Load switch Wholly-insulated cable control connection 12KV incoming fuse 12KV rear fuse 40.5KV flush-mounted dry fuse Rated voltage 12KV 40.5KV 12KV 40.5KV 12KV 12KV 40.5KV Rated current 630A 200A 630A 200A Power frequency withstand voltage/ port 42KV/48KV 95KV/115KV 42KV 95KV 42KV 42KV 95KV Lightning surge withstand voltage 75KV/85KV 185KV/215KV 75KV 185KV 75KV 75KV 185KV Short-time withstand current/ period 16KA/4s 16KA/2s 3.5KA/3s 3.5KA/3s Short-circuit closing current 40KA 40KA 10KA 10KA 2.5KA 50KA 31.5KA Number of load activation 100 100 Mechanical life 3000 3000