YB6 series of pre installed substation (American box change)
1, overview
YB6 series prefabricated substation is suitable for 7.2kV and 12kV loop network power supply, dual power supply or terminal power supply system, as a high voltage power distribution measurement, compensation control and protection device. Prefabricated substation in addition to equipped with a transformer, high voltage side is also equipped with four load switch, two position load switch, backup fuse and insert fuse; low voltage side according to user requirements for assembly of electrical control, electrical power distribution. Compensation device and electric energy meter, etc..
YB6 series of pre installed substation can be used indoors, and can be used for outdoor, widely used in industrial parks, residential areas, commercial centers, and high-rise buildings and other places.
2, structural characteristics
This series of product box structure is divided into two parts before and after. In front of the high and low voltage operation interval. High pressure interval including high voltage terminal, load switch, on load tap changer, insert fuse, pressure released into the valve, the oil temperature gauge, oil level gauge, the oil drain valve. Low voltage terminal. Rear oil box and the cooling fins, transformer winding and iron core, high-voltage load switch and protection using fuses in the oil tank.
3, performance characteristics
1 small size, compact structure, only for the domestic capacity of the box with the change of about 1/3;
2 full seal, all insulation, no insulation distance, reliable to ensure personal safety;
3 can be used in the ring network, and can be used for terminal, the conversion is very convenient, improve the reliability of power supply;
4 loss is small, less than the domestic S9 type transformer loss;
5 the cable connector can operate the 200A load current, which can be used as a load switch operation in an emergency, and has the characteristics of isolation switch;
6 double fuse protection, reduce the operation cost. Insert fuse fuse fuse for UNIKA (temperature, current);
7 using /Y. Method and three-phase five column type structure, has the advantages of high quality of the voltage, the neutral point drift, no heat box, low noise, good.
4, the normal use of conditions
1 altitude less than 1000 meters (more than this range of additional design);
2 wind pressure; not more than 70Pa (equivalent to 35m/s);
3 Humidity: daily average value is less than 95%, the average monthly value is not more than 90%;
4 ambient temperature: the maximum temperature of +40 degrees Celsius, the minimum temperature of -25;
5 earthquake proof level: horizontal acceleration 0.15m/s2, vertical acceleration 0.4/s2;
6 earthquake intensity: 8 degrees;
7 installation location: no more than 3;
8 installation environment: the surrounding air is not corrosive, flammable gas and water vapor and other obvious pollution, the installation site no violent vibration.