In photovoltaic power generation projects, the application of isolation transformer is very common. Taking the photovoltaic inverter transformer 800V to 380V, the specification is 630KVA, and the three-phase voltage 800V to 380V isolation transformer is an example, which plays a key role in the photovoltaic power generation system. Next, we will go into detail about why isolation transformers are often used in photovoltaic power generation projects.
First of all, we need to understand the basic principles and functions of isolation transformers. An isolation transformer is a special type of transformer that is able to transform and electrically isolate the voltage in an electrical system. In photovoltaic power generation systems, isolation transformers are mainly used to convert the DC power generated by photovoltaic panels into alternating current and reduce its voltage to a level suitable for grid access.
In photovoltaic power generation projects, the main functions of isolation transformers are as follows:
1.Voltage conversion: The DC voltage generated by photovoltaic panels is usually high, generally between a few hundred volts and several thousand volts. The AC voltage required for grid access is generally 220V or 380V. Therefore, the DC voltage generated by the photovoltaic panels needs to be converted to an AC voltage suitable for grid access by means of an isolation transformer.
2.Galvanic isolation: Isolation transformers enable galvanic isolation, i.e., isolate the DC energy generated by the photovoltaic panels from the AC energy connected to the grid. This prevents electrical faults or noise in the grid from affecting the photovoltaic panels, and also prevents the failure of the photovoltaic panels from affecting the power grid.
3.Improve system stability: The isolation transformer can effectively filter out harmonics and noise in the electrical system and improve the stability of the system. This is of great significance to ensure the normal operation of the photovoltaic power generation system and prolong the life of the equipment.
4.Protective equipment: The isolation transformer also has protection functions such as overload and short circuit, which can protect the equipment in the photovoltaic power generation system from the damage of electrical faults.
Next, we take the photovoltaic inverter transformer of Zhuoerfan Power as an example to further illustrate the application of isolation transformer in photovoltaic power generation projects. Zhuoerfan Power is an enterprise focusing on the R&D and production of power equipment, and its photovoltaic inverter transformers enjoy a good reputation in the industry. The isolation transformer of this brand has the characteristics of high efficiency, stability and safety, which can meet the requirements of equipment performance for photovoltaic power generation projects.
In practical application, Zhuoerfan Power's photovoltaic inverter transformer is usually used in conjunction with photovoltaic panels, inverters and other equipment to form a complete photovoltaic power generation system. When photovoltaic panels are exposed to sunlight, direct current energy is generated. This electrical energy is converted by the inverter into high-frequency alternating current energy. This high-frequency alternating current energy is then voltage converted and galvanically isolated through an isolation transformer, and finally output low-frequency alternating current energy suitable for grid access.
In conclusion, isolation transformers play an indispensable role in photovoltaic power generation projects. It can not only realize voltage conversion and electrical isolation, improve the stability of the system and the protection performance of the equipment, but also ensure the efficient and safe operation of the photovoltaic power generation system. In the future, with the continuous development and popularization of photovoltaic power generation technology, isolation transformers will be more widely used.