A Story Of Iron Sheet
Hello, everyone, today I will take you to explore the Mingguan PV grid box. How can you use a sheet of iron to turn into a qualified PV grid box?
Photovoltaic grid-connected box is a photovoltaic power station built near the user's site. Its operation mode is self-use and surplus electricity on the user's side; The photovoltaic grid-connected distribution box is designed to maximize the safe operation of the system, ensure the safe coordination between the inverter and the municipal power grid, and improve the system reliability and power metering. The product has the characteristics of high protection level, long service life and convenient installation and operation. Its functions include isolation protection, overload protection, short circuit protection, surge grounding protection, overvoltage and undervoltage protection, reclosing after recovery, power generation energy metering, etc.
Scope of application
Photovoltaic grid-connected box is a photovoltaic power station built near the user's site. Its operation mode is self-use and surplus electricity on the user's side; The photovoltaic grid-connected distribution box is designed to maximize the safe operation of the system, ensure the safe coordination between the inverter and the municipal power grid, and improve the system reliability and power metering.
The product has the characteristics of high protection level, long service life and convenient installation and operation. Its functions include isolation protection, overload protection, short circuit protection, surge grounding protection, overvoltage and undervoltage protection, reclosing after recovery, power generation energy metering, etc.
Product advantages
● All metal boxes are made of cold-rolled steel plate or stainless steel plate produced by WISCO, and the protection grade of the box is above IP54, which is suitable for outdoor installation
● The box is designed with three layers above and below, and the top layer is designed as the brim of the box to prevent rain from entering the box; The middle layer is designed as a photovoltaic metering meter. All kinds of data on the meter can be observed through a transparent glass plate, and a sealing interface is designed on the door lock; The bottom floor is designed as a control and protection area for maintenance personnel
● The power grid inlet hole of the box can be designed to enter from the bottom or side, and IP66 waterproof joint shall be installed when entering the side to ensure the protection grade of the box
● The inverter inlet hole of the box is designed at the bottom to facilitate direct on-site wiring
● The disconnector in the box is of well-known brand and has obvious breaking point. The design capacity is more than 1.5 times the maximum output current of the inverter
● Photovoltaic overvoltage and undervoltage protection device and voltage recovery reclosing protection device are designed in the box. In addition to voltage loss protection, this product can also protect the grid voltage instability
● The box is designed with lightning surge protection. The standard maximum discharge current of surge protector is 40KA. In areas with frequent thunderstorms, larger lightning surge protector can be selected, and the maximum discharge current can reach 100KA
● The box is designed with overcurrent protection circuit breaker to ensure that the circuit breaker can break reliably in case of overload and short circuit in the system
● The mounting plate inside the box can be equipped with epoxy resin insulation plate according to customer requirements, and the thickness of the insulation plate shall be at least 5mm
● Anti-islanding device can be configured according to customer requirements