Product introduction

YB□ series prefabricated substations are suitable for 7.2KV and 12KV ring network power supply, dual power supply or terminal power supply systems, as high-voltage power distribution metering, compensation control and protection devices. In addition to transformers in the prefabricated substation, the high-voltage side is also equipped with four-position load switches, two-position load switches, backup protection fuses and plug-in fusible circuit breakers. The low-voltage side is equipped with control appliances and power distribution appliances according to user requirements. , Compensation device and electric energy meter, etc.

YB□ series of prefabricated substations can be used indoors and outdoors. It is widely used in various places such as industrial parks, residential quarters, commercial centers and high-rise buildings.

Environmental conditions for use

Environmental temperature: highest temperature +40℃; lowest temperature -25℃;

Altitude: no more than 1000 meters (designed separately beyond this range);

Humidity: the daily average value is not more than 95%; the monthly average value is not more than 90%;

Inclination of installation site: no more than 3 degrees;

Wind pressure: not more than 70Pa (equivalent to 35m/s);

shockproof level: horizontal acceleration 0.4m/s2; vertical acceleration 0.15m/s2;

Earthquake intensity: 8 degrees;

Installation environment: The surrounding air is obviously polluted by corrosive, flammable gas and water vapor, and there is no severe vibration at the installation site.

Model and its meaning

Structural Features

The cabinet structure of this series of products is divided into front and back parts. The front is the high and low pressure operation interval. The high pressure interval includes high voltage terminal, load switch, no-load tap switch, plug-in fuse, pressure release valve, oil temperature gauge, oil level gauge, and oil drain valve; within the low pressure interval Including low voltage terminals. Behind is the fuel tank and heat sink, transformer winding and iron core, high voltage load switch and protection fuse are all in the fuel storage tank.

Performance characteristics

Is small in size, compact in structure, only about 1/3 of the domestic box change with the same capacity;

Fully sealed and fully insulated, no insulation distance required, reliable personal safety guarantee;

Can be used for both ring network and terminal, the conversion is very convenient, and the reliability of power supply is improved;

The loss is small, which is lower than the loss of the domestic S9 transformer;

The cable connector can operate 200A load current, and can be operated as a load switch in an emergency, and has the characteristics of an isolating switch;

Adopts double-fuse protection, which reduces operating costs. The plug-in fuse fuses are dual sensitive fuses (temperature, current);

Uses the △/Y connection method and the three-phase five-column structure. The advantages are high voltage quality, no neutral point drift, no heat generation, low noise, and good lightning protection.

Main technical parameters

Product style

Standard American Substation

The shell material of this series of prefabricated substations is made of high-quality cold-rolled steel plate, and the box structure is assembled. The surface of the box adopts advanced technology for anti-corrosion treatment. First, it goes through a surface pretreatment process, and then the electrostatic powder and coating process.

American Substation with Stainless Steel Shell

The shell material of this series of pre-installed substations is made of high-quality stainless steel plate, which greatly improves the anti-corrosion performance of the substation. The stainless steel honeycomb double-layer structure has good temperature insulation and heat dissipation functions; scientific design and superb processing technology make the stainless steel shell American box full of elegant and modern flavor; the box body can be bright or matte, and can also be customized according to customers It is required to be sprayed in various colors.