Overview

The HJBWG photovoltaic grid-connected cabinet is an important component connecting centralized inverters with step-up transformers or AC combiner boxes with step-up transformers. The cabinet's incoming line uses a circuit breaker input or direct input, and the output uses a circuit breaker or load isolator switch. The busbar uses plated or purified busbar connections and provides secondary lightning protection. The system's rated voltage is AC690V, with an indoor protection level of IP40 and outdoor of IP65. For secondary measurement and control, cables for current are greater than 2.5mm², voltage cables greater than 1.5mm², control cables greater than 1.0mm². The current measurement transformer is 0.5-level, and the metering transformer is 0.2S-level. Additional functionalities can be added according to customer requirements. This product uses professional electrical design and component selection to make the internal structure safe, simple, aesthetically pleasing, convenient for on-site wiring and maintenance, and ensures stable long-term operation.

Functions and Features

▪ Can use either fixed mounting or plug-in design;

▪ Uses circuit breakers and components from domestic or international brands to form functional units, offering excellent technical performance and safety;

▪ Can form various standard unit modules for flexible customer assembly;

▪ Uses separation between areas and isolation between functional unit input and output lines, effectively enhancing safety protection;

▪ Modular assembly structure, all frame components are securely connected with screws. Frames, doors, and panels are phosphated and electrostatically sprayed. Non-sprayed parts are all galvanized and passivated. It meets component requirements and various working environments, reaching the corresponding protection level;

▪ Frame made of steel plate with 25mm modular holes for various expansion purposes; incoming lines can come from top or bottom;

▪ High breaking capacity, good dynamic and thermal stability, flexible and practical electrical design, meeting main parameters;

▪ Lightweight reset, high mechanical strength and assembly precision, attractive appearance.

Technical Parameters