Medium voltage equipment

Grid-connected cabinet is a kind of electric power equipment, which is mainly used for the access of distributed power sources such as solar energy, wind energy, hydro energy and the power transmission and distribution of grid-connected power generation system and the control of power quality, and at the same time, it also undertakes the functions of monitoring, protection and so on. In the photovoltaic power generation system, it is used in conjunction with inverters, string inverters and other equipment, which can convert the DC output of the power supply to AC output, realize the seamless connection between solar power generation and the grid, and enable solar power generation to deliver electricity to the grid, so as to realize the support to the power supply of the grid.

 

The grid-connected cabinet generally contains the main cabinet, branch circuit cabinet, monitoring module, protection module and other components. The main cabinet is mainly the busbar and circuit breaker component of the grid-connected cabinet, and the branch cabinet includes fuses, circuit breakers, etc. and its ancillary components of the branch cabinet, which is used to converge multiple branch circuits into the main cabinet. Unit monitoring system can realize the monitoring of power parameters, such as current, voltage, frequency, etc., so as to realize the rapid location of faults and timely maintenance to ensure the normal operation of the system.

 

Grid-connected cabinet is very widely used, not only for residential households and small commercial retail places of photovoltaic power generation system, but also for large-scale industrial, commercial and public buildings distributed power generation system. The use of grid-connected cabinets can greatly improve the efficiency of grid power distribution, to achieve a reliable supply of electricity, but also promote the development of distributed energy.