BWX photovoltaic DC combiner box
Short Description:
The BWX lightning protection combiner box combines the DC inputs of 24 photovoltaic cell modules into one or more outputs, each with a fuse, and the outputs are equipped with lightning arresters and circuit breakers, greatly simplifying the input wiring of DC distribution cabinets and inverters.
Product details
Overview
The BWX lightning protection combiner box combines the DC inputs of 24 photovoltaic cell modules into one or more outputs, each with a fuse, and the outputs are equipped with lightning arresters and circuit breakers, greatly simplifying the input wiring of DC distribution cabinets and inverters. Provide lightning protection, short-circuit protection, and grounding protection. The combiner box is divided into two types: intelligent and non intelligent. The intelligent lightning protection combiner box is equipped with a combiner monitoring unit inside, which can monitor the input current of each photovoltaic cell string, summarize the output voltage, temperature inside the box, and the status of lightning protection devices, circuit breakers, etc.
The internal layout of the device is simple and clear, with neat and reasonable wiring. High reliability and easy maintenance. Outdoor wall mounted installation can adapt to various harsh environments. In addition to related core components, others can be customized according to user requirements.
Functional Features
The protection level of the combiner box reaches IP65, with waterproof, dust-proof, rust proof, and salt spray resistant properties, meeting the requirements for outdoor installation; Can simultaneously connect up to 24 battery strings;
Each positive and negative battery string is equipped with a photovoltaic specific fuse to protect the module string in case of failure. The fuse base and fuse are used together to reduce maintenance costs for owners and effectively protect the personal safety of maintenance personnel;
The use of photovoltaic dedicated high-voltage lightning protection devices can protect the busbar after convergence against both positive and negative ground, with a continuous operating voltage (Uc) of up to 1000VDC; The power module inside the combiner box can be connected to a photovoltaic voltage of 1000DCV;
The measurement and control module of the combiner box adopts reliable Honeywell Hall elements (DC CT sensors) to collect, monitor, alarm, and locate local faults in the current and bus voltage of each photovoltaic string. It can also measure the temperature inside the combiner box, detect the status of lightning arresters and output circuit breakers, etc;
The monitoring module inside the combiner box has digital display function, which can display the current, bus voltage, temperature inside the combiner box, status of circuit breakers and lightning arresters, system power, and equipment address of each component string on the device;
Capable of RS485/MODBUS-RTU serial communication; Both have lightning protection for external interfaces;
Capable of receiving parameter downloads from local monitoring devices for analysis and processing;
The working power supply of the combiner box can be selected from external 220V AC/DC or the power supply provided by the combiner box itself. If the power supply is provided by the combiner box itself, there is no need for separate wiring for power supply on site.
