Photovoltaic combiner box: solar combiner box, solar photovoltaic combiner box, photovoltaic array lightning protection combiner box, solar power generation combiner box, photovoltaic power generation combiner box, photovoltaic lightning protection combiner box, solar lightning protector, solar photovoltaic lightning protector, photovoltaic lightning protection cabinet.

Explanation of terms

In the solar photovoltaic power generation system, in order to reduce the connection between the solar photovoltaic array and the inverter, Corbett New Energy has developed the KBT-PVX series photovoltaic lightning protection combiner box with a number of patented technologies in accordance with the "SJT 11127-1997 Photovoltaic (PV) Power Generation System Overvoltage Protection - Guidelines" and "GB/T18479-2001 Overview and Guidelines for Ground Photovoltaic (PV) Power Generation System" and the characteristics of the photovoltaic system, combined with our many years of lightning protection system design experience. Users can connect a certain number of photovoltaic cells with the same specifications in series to form a photovoltaic series, and then connect a number of photovoltaic series in parallel to the KBT-PVX series photovoltaic confluence lightning protection box, and after the confluence in the photovoltaic lightning protection combiner box, it is output through the DC circuit breaker and used with the photovoltaic inverter to form a complete photovoltaic power generation system and realize grid connection with the mains.

In order to improve the reliability and practicability of the system, Corbett is equipped with photovoltaic special DC lightning protection module, DC fuse and circuit breaker in the photovoltaic lightning protection combiner box, and sets up working status indicators, lightning counters, etc., so that users can grasp the working conditions of photovoltaic cells in a timely and accurate manner and ensure that the solar photovoltaic power generation system plays its maximum effect.

Overview

The photovoltaic combiner grid-connected cabinet is suitable for the AC 50Hz, rated working voltage of 380V, and rated working current of 2000A for power users such as ground centralized, ground string, and ground distributed, and is used for power conversion, distribution and control of power, lighting and distribution equipment.

The product has the characteristics of high breaking capacity, good dynamic and thermal stability, flexible electrical scheme, convenient combination, strong practicability, novel structure and high protection level. It can be used as a replacement product for low-voltage switchgear.

Key features:

1. The protection level of the combiner box reaches IP65, with waterproof, dustproof, rust-proof and salt-spray proof, which meets the requirements of outdoor installation;

2. It can connect up to 24 battery series at the same time;

3. The positive and negative electrodes of each battery series are equipped with special photovoltaic fuses to protect the module string when it fails, and the fuse base and fuse are used together to reduce the owner's later maintenance costs and effectively protect the personal safety of maintenance personnel;

4. The use of photovoltaic special high-voltage lightning protection can protect the positive electrode to the ground and the negative electrode to the ground of the bus after confluence, and the continuous working power (Uc) can reach 1000VDC;

5. The power module in the combiner box can be connected to the photovoltaic voltage of up to 1000DCV;

6. The measurement and control module of the combiner box adopts reliable Honeywell Hall components (DC CT sensors) to collect and monitor the current and bus voltage of each photovoltaic string, alarm and local fault location, and can measure the temperature in the combiner box, and detect the status of the lightning protector and output circuit breaker.

7. The monitoring module in the combiner box has a digital display function, which can display the current of each component string, bus voltage, temperature in the combiner box, the status of the circuit breaker lightning protector, system power and equipment address and other relevant information on the equipment;

8. RS485/MODBUS-RTU serial communication;

9. There is lightning protection with the external interface part;

10. It can receive the parameter download of the local monitoring device for analysis and processing;

11. The working power supply of the combiner box can be powered by the external 220VAC/DC or the power supply provided by the combiner box itself.

Conditions of normal use

◆The ambient air temperature is not higher than +40°C and not lower than -5°C. The average temperature within 24h must not be higher than +35°C.

◆ For indoor installation and use, the altitude of the place of use shall not exceed 2000m.

◆The relative humidity of the surrounding air does not exceed 50% at a maximum temperature of +40°C, and a greater relative humidity is allowed at lower temperatures. (e.g. 90% at +20°C) The effects of occasional condensation due to temperature changes should be taken into account.

◆ The inclination of the equipment to the vertical plane when installed shall not exceed 5%.

◆ The equipment should be installed in a place where there is no violent vibration and impact, and where it is not enough to corrode the electrical components.

◆ When the user has special requirements, negotiate with the manufacturer to solve the problem.

Product customization

ZBBWX lightning protection combiner box is to combine the DC input of up to 24 photovoltaic cell module strings into one or more outputs, each channel is equipped with a fuse, and the output is equipped with a lightning protection and circuit breaker, which greatly simplifies the input wiring of DC distribution cabinet and inverter. Provides lightning protection, short circuit protection and grounding protection. Combiner boxes are divided into two types: intelligent and non-intelligent. The intelligent lightning protection combiner box is equipped with a confluence monitoring unit, which can monitor the input current of each photovoltaic cell string, the summary output voltage, the temperature in the box, the status of the lightning protector, the state of the circuit breaker, etc.

The internal layout of the device is simple and clear, and the wiring is neat and reasonable. High reliability and simple maintenance. Outdoor wall-mounted installation, can adapt to all kinds of harsh environments. In addition to the related core components, others can be customized according to user requirements.