![SC[B]-10 Dry Type Transformer](/source/dc90e9d39dd0711afae47155707cd0e5/sc-b-10-dry-type-transformer_thumbW360.jpg)
01
YB6 Pre-installedsubstation(American case transformer)
Structural characteristics
The cabinet structure of the series products is divided into two parts.The front is the high and low pressure operation interval.The high voltage interval includes high voltage terminal,load switch,no-load pressure regulating tap switch,plug-in fuse,pressurerelease valve oil temperature meter,oil levelmeter and oil discharge valve.The low pressure interval includes low pressure terminals.The rear partis the ilfilling box body and heat sink,the transformer windings and iron core,the high-voltage load switch and theprotective fuse are allin the oil storage tank.
Environmental condition
1.Altitude:1000m and below;
2.Wind pressure:no more than 70Pa(equivalent to 35m/s);
3.Humidity:daily average is not more than 90%,and monthly average isnot more than 90%;
4.Ambient temperature:maximum temperature +40℃,minimumtemperature-25℃;
5.Shockproof level:horizontal acceleration 0.4/s2;Vertical acceleration0.15m/s2;
6.Earthquakeintensity:8 degrees;
7.Installation environment:the surrounding air is free from obvious pollutionby corrosive,flammable gases and water vapor,and the installation siteis free from violent vibration.
Features and advantages
1.Small in size and compact in structure,itis only about 1/3 of the domestic variation of the same capacity box;
2.Fully sealed,fully insulated,no need of insulation distance,reliable guarantee of personal safety;
3.It can be used for both the ring network and the terminal,which is very convenient for conversion and improves the reliability ofpower supply;
4.Small loss,lower than domestic S9 transformer loss;
5.The cable connector can operate 200A load current,which can be used as a load switch operation in an emergency,and has thecharacteristics of isolating switch;
6.Double fuse protection is adopted to reduce operation cost.The fuse of plug-in fuse is double sensitive (temperature,current);
7.adopted △Y.The connection method and three-phase five-column structure have the advantages of high voltage quality,nodrift of neutral point,no heat,low noise and good lightning protection.
Transformer
Intelligent integrated substation USESlow loss,oil-immersed,fully sealed S9,S10,S11 series transformers,or resin insulationor NOMEX paper insulation environmental protection type dry transformer,the bottom can beequipped with a car,the transformercan be easily in and out.
Technical parameters of pre-installed substation
| Item | Unit | Data |
| Rated voltage | kV | 10/0.4(High voltage/low voltage) |
| Maximum operating voltage | kV | 12(High voltage chamber) |
| Rated frequency | Hz | 50 |
| Nominal capacity | KVA | 50-1600 |
| Withstand voltage of 1 minute working frequency | kV | 35 |
| Lightning impulse voltage | kV | 75 |
| Cooling way | Oil-immersed self-cooling | |
| High voltage backup fuse switches off the current | kA | 50 |
| Plug-in fuse turns off the current | kA | 2.5 |
| The environment temperature | -75 | |
| The coil allows temperature to rise | 65 | |
| No load voltage regulation | ±5%/±2×2.5% | |
| The noise level | db | 50 |
| Protection grade | IP43 |