Product Overview

Photovoltaic box type substation, also known as photovoltaic box transformer or specialized box transformer for photovoltaic power generation, is the application of box type substations in the new energy source of photovoltaic power generation. In recent years, there has been an increasing demand for photovoltaic, wind and other forms of power generation in China, leading to a growing demand for related equipment. YB photovoltaic box type substation is a new type of box type substation that integrates photovoltaic power generation AC/DC systems, inverter devices, low loss transformers, and other control systems. It combines AC/DC control systems, inverter devices, boost systems, control systems, etc. more organically, achieving simplified configuration, high reliability and flexibility, safe and convenient operation and maintenance, while also having advantages such as environmental protection, energy saving, and compact structure. It fully meets the needs of photovoltaic power plants connected to the grid and is an ideal supporting equipment for photovoltaic power generation systems.

Terms of Use

Altitude not exceeding 1000m;
The ambient temperature is between -25 ℃ and -40 ℃;
Relative humidity: daily average not exceeding 95%, monthly average not exceeding 90%;
Installation location: Keep away from sources of fire, explosions, conductive dust, chemically corrosive gases, and places with severe vibrations.
If the above conditions are exceeded, users can consult the manufacturer.

Model meaning



Features and characteristics

1. The trinity of high voltage switchgear, transformer, and low voltage switchgear is strong
2. Comprehensive high and low voltage protection, safe and reliable operation, and simple maintenance
3. Small footprint, low investment, short production cycle, and easy mobility
4. Adopting a double-layer (composite board) structure, it provides insulation, heat dissipation, ventilation, aesthetics, and high-level protection. The shell materials are stainless steel, aluminum alloy, cold-rolled plate, and colored steel plate
5. The high-voltage ring main unit can be equipped with a network automation terminal (FIU) with the "four remote" function. Reliable detection of short circuits and single-phase grounding faults can be achieved, facilitating the upgrade of automated distribution networks.

Transformer used

Low loss S13, S20, and SCB13 series transformers are selected for the transformer box.

high-voltage side

The high-voltage side is generally protected by a combination of load switch and fuse. After one phase of the fuse is blown, the three phases are interlocked and tripped. The load switch can be selected from compressed air, vacuum, sulfur hexafluoride and other types, and can be equipped with an electric operating mechanism to achieve automation upgrade. The fuse is a high-voltage current limiting fuse with an impactor, which has reliable action and large breaking capacity. For transformers above 800kVA, vacuum circuit breakers such as ZN12 and ZN28.VS1 can be used for protection.

low-pressure side

The low-voltage side main switch adopts universal or intelligent circuit breakers for selective protection. The outgoing switch adopts a new type of plastic shell switch, which is small in size, short in arcing, and can reach 30 circuits; Intelligent automatic tracking reactive power compensation device, with two switching modes for users to choose from: contactor and non-contact.