Application of confluence box in solar photovoltaic power generation system

The CE series solar collector collection device is specially used in intelligent photovoltaic combiner (also known as solar combiner box, solar photovoltaic combiner box, photovoltaic array lightning arrester box, solar power combiner box, photovoltaic power combiner box, photovoltaic lightning arrester box, photovoltaic The generator lightning arrester is used for real-time monitoring of the operating status of the panel in the photovoltaic array. The main functions include the measurement of the photovoltaic cell current, voltage and power generation, the failure status and life detection of the arrester in the combiner box, and the DC breaker. State acquisition, relay control output, sensor analog measurement interface with wind speed, temperature, and irradiance meter, and the device uses RS485 interface for remote communication.


feature of product:

1. A variety of communications: RS485, zigBee, wifi
2. Lightning failure (exclusive) and damage detection
3 cost-effective
4 working power can be taken directly from the battery board voltage (100-1000V)
5 high applicability (installation, volume, full-featured, no additional power supply)
6. Product performance is equal to, greater than similar products

Features:

·Using Hall sensor isolation measurement and high-precision high-power resistance sampling and isolation measurement, which can be optionally used. ·A positive or negative electrode can be used to measure the current. ·The power supply is self-powered by the photo-cell voltage, which is convenient for on-site construction. DC fuses, capacity, pressure DC 1000V
Optional voltage function, the highest measurement voltage DC1KV
·Provide two standard 0-10V or 0-20mA analog signal input, can be used for signal conversion input of other sensors ·With local LED display measurement parameters ·Standard Modbus-RTU protocol RS485 interface communication
Product Features:

· Photovoltaic battery string open circuit detection alarm (data remote transmission and local LED lights red and green and indicating alarm)
· With switch input, used for DC circuit breakers, lightning protection devices and other components of the state or failure detection with relay output, remote control, used to drive the DC circuit breaker automatic closing and closing provide temperature, irradiation, wind speed, etc. Analog input for type sensor input • Outputs DC power (12V or 24V) to external sensor (optional function)
· On-board six-digit LED displays the input current of each channel cyclically, and has the energy-saving display mode turned off. · Standard Modbus RTU communication protocol. The communication address, baud rate, and data mode can be freely set. Local setting is available for the setting method. Remote communication set two ways ·Can measure the battery voltage after convergence, and calculate the power of each battery string; Self-powered with photovoltaic battery voltage, without the need of city power access

Technical Parameters:

Product model CE-ND12 CE-ND22 CE-ND32
Number of input channels 8 way 12 way 16 way
Input range DC 0~10A
Data update period 1 second
measurement accuracy Photovoltaic cell measurement 1.0, external analog 0.5
Temperature Coefficient 500ppm
Communication Interface RS485, Modbus protocol, no parity/odd parity/even parity, 4800/9600/19200/57600bps
Isolation pressure Power/convergence input/communication/photovoltaic voltage input/digital input/relay output are isolated from each other, isolation withstand voltage 2500V DC/1 minute
temperature humidity Operating temperature: -25-+60°C, humidity 95%, non-condensing, non-corrosive gas
Auxiliary power 220AC/100-1000VDC
Power consumption
Lightning surge
Additional features
Relay output One set of conversion 8A/AC250V (8A/DC 30V)
Switch input 3 groups of external status inputs (dry contact mode)
Analog input DC0(4)-20mA, DC0-10V (also available upon request)

Wiring:

Sampling board wiring instructions:

• I*+ is the * current inflow port, and I*- is the * current outflow port. The same circuit with the same negative and positive path number, such as: I1+ is the first current inflow port, I1- is the first current outflow port

· Corresponding relationship between the number of busbars corresponding to the CN1 socket of the control board is: the I1 to I8 ports are corresponding to the current input of the 1st to 8th paths displayed on the control board.

· Corresponding relations between the number of busbars corresponding to the CN2 socket on the control board are as follows: I1 to I8 ports correspond to the 9th to 16th current inputs displayed on the control board in order.

The upper and lower bus sampling boards can be used in any combination. The upper board is small, the lower board is large, and two small boards can be used at the same time or only a small one.

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