Pre-fabricated embedded cabinet transformer statio

Series YBD1-12 of pre-fabricated embedded cabinet transformer station (hereinafter named embedded cabinet transformer station) is a complete distribution transformer plant integrating high-voltage switches, embedded transformer, low-voltage switches and pre-fabricated pit. It is a new power plant developed by us after we have researched and discussed the ecological design concept of modern cities thoroughly. The main body is embedded so that it does not occupy the space on the ground, creates a favorable visual effect and becomes harmonious with surrounding environment. 1,Pre-fabricated pit is made of glass-fiber cement composite in the factory and treated with the advanced waterproof technology to ensure zero leakage and high strength. At the top is an openable access hole. There is a comprehensive controlled system functioning drainage, suction, illumination and dehydration and mounting trays in the pit to mount and fix high-voltage and low-voltage cables. 2,High-voltage part is a combination of different high-voltage switch cabinets in accordance with various plans and includes lead-in/out cabinet, feeder cabinet, measuring cabinet and loop-network cabinet. Adopt the loop-network unit of imported load switches and modular design to add electrical operation mechanisms and data collection units easily. 3,Use the oil-immersed embedded transformer of high reliability, low loss, silence, less temperature rise, whole enclosure and zero maintenance. Transformer of this type features energy saving, environmental protection and excellent overload capacity. 4,Low-voltage part is a combination of low-voltage switch cabinets in accordance with various plans and includes measuring cabinet, breaker cabinet, low-voltage feeder cabinet and capacitance compensation cabinet. 5,High-voltage connections are waterproof wholly-sealed cable inserts that realize entire insulation, waterproof and sealing. Small-capacity low-voltage connections are cables and large-capacity low-voltage connections are copper blocks covered with 3M waterproof tape. 6,The entire transformer features energy saving, safety, advancement and zero error and maintenance and generates great social and economic benefits and vigorous development. Factory-set steel plate pressing model . It features high strength, wholly waterproof, automatic drainage and dehydration. There are an illumination system and an openable access hole. Protection grade: IP68 Main technical parameters of high-voltage switches Rated voltage: 12kV Rated frequency: 50Hz Rated current: 630A Rated short-time withstand current: 20kA/2S Rated peak withstand current: 50kA Rated power frequency withstand voltage (to earth/ port): 42/48kV(1min) Rated surge withstand voltage (to earth/ port): 75/85kV Protection grade: IP34 Main technical parameters of low-voltage switches Rated voltage: 0.4kV Rated frequency: 50Hz Rated current of main circuit: 100 3000A Rated short-time withstand current: 15kA, 30kA Rated peak withstand current: 30kA, 63kA Protection grade: IP34 Symbols of types Y Pre-fabricated B Transformer station DEmbedded 1 Design No. (kVA)Rated capacity of transformer(kVA) (kV)Rated value of high voltage (kV) (kV)Rated value of low voltage (kV) There is a string of great improvements in material, process and structure of this series so that the electrical performance reaches the international level. It features high efficiency, low loss, less electricity and running cost and considerable social benefits. It is a new product recommended by governments and used widely in municipal communications, municipal projects, residential community, airports, bus stations, schools, highways and other places.