Photovoltaic generation box transformer substation

Abstract

A photovoltaic generation box transformer substation comprises a box transformer substation housing; a high voltage chamber, a transformer chamber and a low voltage chamber are arranged in the box transformer substation housing; a high voltage cabinet is arranged in the high voltage chamber; a transformer is arranged in the transformer chamber; a low voltage cabinet is arranged in the low voltage chamber; a high voltage side of the transformer is connected with a copper bar A, a copper bar B and a copper bar C; the other side of the copper bar A, the copper bar B and the copper bar C is connected with a wall bushing; a grading ring is arranged in the wall bushing; the low voltage side of the transformer is connected with a copper bar D and a copper bar E; the other end of the copper bar D and the copper bar E is connected with a breaker; the transformer is a dry type transformer, employs a duplex winding line, and a leading-out end is arranged above the transformer. The benefits are that the photovoltaic generation box transformer substation can reduce oil-immersed transformer oil leakage risks against environment, thus greatly improving product reliability, reducing maintenance cost, and the fuse can be conveniently replaced.

Description

technical field [0001] The invention relates to the technical field of photovoltaic transformers, in particular to photovoltaic power generation box transformers. Background technique [0002] Box-type transformer (also known as box-type substation) is a kind of high-voltage switchgear, distribution transformer and low-voltage power distribution device. It is a factory prefabricated indoor and outdoor compact power distribution equipment arranged according to a certain wiring scheme. , Transformer step-down, low-voltage power distribution and other functions are organically combined, installed in a moisture-proof, rust-proof, dust-proof, rodent-proof, fire-proof, anti-theft, heat-insulated, fully enclosed, movable steel structure box, mechanical and electrical integration It is a fully enclosed power transmission and transformation equipment. This kind of power transmission and transformation equipment is designed with traditional transformers in a box-type housing. It has s...

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Problems solved by technology

[0003] Photovoltaic transformers are mainly used in photovoltaic power stations, and mainly undertake the task of boosting voltage. The reliability and safety of photovoltaic transformers directly affect the safe operation of photovoltaic power stations. Solar photovoltaic power generation occupies an important seat in the world's energy consumption in the 21st century. The grid-operated photovoltaic power generation box substation is to convert the alternating current from solar energy into the general station through the photovoltaic power generation box substation, and then use it for billing on the grid to realize solar power generation. The existing photovoltaic power generation box adopts the following structure - including low voltage room, high-voltage room, transformer and base, the radiator of the transformer is exposed outside, and an oil-immersed transformer is used. The high-voltage load switch is placed in the oil tank of the transformer. For oil-immersed transformers, there is a risk of polluting the environment after the transformer leaks oil. Replacing the entire transformer, high maintenance time and cost

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