Overview
HDBWG photovoltaic grid connected cabinet is an important part to undertake centralized inverter and step-up transformer or AC combiner box and step-up transformer. The incoming line of this photovoltaic grid connected cabinet adopts circuit breaker input or direct input, and the output adopts circuit breaker or load disconnector. The bus is connected by galvanized or purified bus, and secondary lightning protection is provided. The maximum rated voltage of the system is AC690V, and the protection grade is IP40 indoor and IP65 outdoor; For secondary measurement and control cables, the current is more than 2.5mm2, the voltage is more than 1.5mm2, the control is more than 1.0mm2, the measurement current transformer is a current transformer of class 0.5, and the metering transformer is a current transformer of class 0.2S. Relevant functions can also be added according to customer requirements. This product adopts professional electrical design and component selection, which makes the internal structure of the cabinet safe, simple, beautiful, convenient for field wiring and maintenance, and ensures long-term stable operation of the equipment.
Functions and features
▪ Both fixed installation design and plug-in design can be adopted;
▪ The circuit breaker and component combination unit of Feng Company or well-known domestic and foreign brands are used, which has excellent technical performance and is safe and reliable;
▪ Various standard unit modules can be formed separately for customers to choose and assemble at will;
▪ The isolation between areas and the mutual isolation between the incoming and outgoing lines of functional units are adopted to effectively strengthen the safety protection performance;
▪ In the assembled structure, all structural members of the frame are firmly connected with screws. The frame, door and panel are subject to electrostatic spraying after phosphating treatment. All non plastic spraying parts are galvanized and passivated. It can meet the requirements of various components and different working environments, and reach the corresponding protection grade;
▪ The skeleton is made of high-quality steel plate. The skeleton can be equipped with holes with a modulus of 25 mm, which can be used for various purposes. There are two ways of incoming lines: up side and down side;
▪ High breaking capacity, good dynamic and thermal stability, flexible and convenient combination of electrical schemes, strong practicability, and main parameters reaching the international advanced level;
▪ Light reset, high mechanical strength and assembly precision, beautiful appearance.
