Prefabricated transformer station, oil-immersed transformer, and photovoltaic system

An oil-immersed transformer, used in a prefabricated transformer station, the prefabricated transformer station comprising a container housing, a transformer room configured to install the oil-immersed transformer is provided inside the container housing, and the oil-immersed transformer comprises a fuel tank and an oil conservator;

• and
• the oil conservator is disposed above the fuel tank, and a height of a top of the oil conservator is higher than a height of a side wall of the transformer room,
• wherein the oil conservator further comprises a capsule, an air tube, and an oil conservator body, and the prefabricated transformer station further comprises a moisture absorber;
• the oil conservator body is filled with the transformer oil and the capsule;
• the capsule is connected to the moisture absorber outside the oil conservator body through the air tube;
• and
• the moisture absorber is configured to maintain a balance between pressure of the oil conservator and the fuel tank and outside pressure.

A photovoltaic system, wherein the photovoltaic system comprises a prefabricated transformer station and a photovoltaic inverter;

• and
• the prefabricated transformer station comprising a container housing and an oil-immersed transformer;
• a transformer room is provided inside the container housing, and a top cover of the transformer room is opened;
• and
• the oil-immersed transformer is installed in the transformer room, and a height of a top of an oil conservator of the oil-immersed transformer is higher than a height of a side wall of the transformer room;
• and
• the photovoltaic inverter is configured to convert a direct current into an alternating current and then transmit the alternating current to the prefabricated transformer station,
• wherein the oil conservator further comprises a capsule, an air tube, and an oil conservator body, and the prefabricated transformer station further comprises a moisture absorber;
• the oil conservator body is filled with the transformer oil and the capsule;
• the capsule is connected to the moisture absorber outside the oil conservator body through the air tube;
• and
• the moisture absorber is configured to maintain a balance between pressure of the oil conservator and a fuel tank and outside pressure.