Photovoltaic grid-connected box
Product Features
- Product Description
- Performance characteristics
- Technical parameters
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- Commodity name: Photovoltaic grid-connected box
- 产品特点: Efficient Grid Connection: Supports low-voltage grid connection and is compatible with various photovoltaic inverters. Multiple Protections: Features overvoltage, undervoltage, overcurrent, short-circuit, and leakage protection functions. Intelligent Monitoring: Built-in monitoring system supports remote data acquisition and fault alarms. Easy to Expand: Modular design allows for adding functional modules as needed. Energy-efficient and Environmentally Friendly: Complies with green energy standards and contributes to carbon neutrality goals.
This product is mainly used in distributed grid-connected power generation systems and small and medium-sized commercial photovoltaic power generation systems. It is connected in series between the grid-connected inverter and the power grid. The product has a series of protections, including islanding protection, power quality detection, automatic reclosing under pressure, undervoltage tripping, low grid voltage, high grid voltage, input lightning protection, system overcurrent, and grid isolation.
This product is mainly used for distributed grid-connected power generation systems and small and medium-sized commercial photovoltaic power generation systems. It is connected in series between the grid-connected inverter and the power grid. The product has a series of protections, including anti-islanding protection, power quality detection, automatic reclosing under pressure, undervoltage tripping, low grid voltage, high grid voltage, input lightning protection, system overcurrent, and grid isolation. Accurate power metering detection, transmission, and intelligent operation and control are indispensable parts of distributed photovoltaics. The product has obtained industry standard CCC certification and CE certification.
Product Appearance
Design Style: Simple and generous, industrial-grade protective design, suitable for outdoor installation.
Material: Made of high-strength stainless steel or galvanized steel plate, corrosion-resistant and anti-aging.
Color: Standard industrial gray 7035 or 9003 or customized color.
Protection Level: IP45, dustproof and waterproof, suitable for various harsh environments.
Internal Structure
Layout: Modular design, internal components are arranged neatly, easy to install and maintain.
Main Components:
Circuit Breaker: Used for overcurrent and short-circuit protection.
Anti-Islanding Protection Device: Prevents current from flowing back into the grid.
Power Quality Detection: Accurately records power generation.
Communication Module: Supports remote monitoring and data transmission.
Monitoring Display Screen: Real-time display of voltage, current, power, and other parameters.
Application Scenarios
Industrial Parks: Provides clean energy for large factories.
Commercial Buildings: Reduces commercial electricity costs and achieves green electricity consumption.
Rural Photovoltaics: Suitable for distributed photovoltaic power generation projects.
Public Facilities: Such as schools, hospitals, and government office buildings. -
Reserve installation locations for metering electricity meters and collectors;
Meter electricity meter viewing window, lead seal (anti-theft); The integrated design concept of the product, the power distribution part and the metering part are completely isolated, reducing electromagnetic interference; Photovoltaic dedicated reclosing circuit breaker, meeting the needs and acceptance standards of different regions; The box cover can only be opened with a professional key, realizing professional management; Spray-painted box and stainless steel box are optional; Can be installed indoors and outdoors, safer to use; -
Product Model
Parameters
Installation Power
3KW-200KW(130KW)
Inverter Input Channels
1/2/3/4 Channels (For more than 4 channels, a combiner box is recommended).
Grid Output Channels
1 Channel
Grid Connection Requirements
Single-phase/Three-phase
Grid Voltage
AC: 220/380V
Switching Capacity
32A-400A
Rated Frequency
50HZ
Protection Functions
Short Circuit Protection
Yes
Overload Protection
Yes
Lightning Protection
Yes (in: 20KA, IMAX: 40KAUp≤4KV)
Isolation Protection
Yes (knife switch)
Over/Under Voltage Protection
Yes
Automatic Reclosing
Yes
Grid Connection Switch
Plastic-cased automatic recloser 40A-400A
Automatically trips when the grid power fails or the voltage deviation is greater than 20% (adjustable delay time 0-10s);
Automatically closes when the grid power is restored;
Manual and automatic operation can be switched;
Phase loss protection, zero-sequence protection
Energized ReclosingPhotovoltaic dedicated small recloser 20A-100A
Automatically trips when the grid power fails or the voltage deviation is greater than 20% (operation handle action);
Automatically closes when the grid power is restored (operation handle action);
Manual and automatic operation can be switched;
Energized ReclosingEnvironmental Applicability
Temperature and Humidity
Operating temperature: -25℃-+60℃ Storage temperature: -40℃-+70℃
Humidity: 10~90%, no condensation; no corrosive gasesOperating Altitude
≤3000m
General Parameters
Enclosure Material
Stainless steel, cold-rolled steel sheet with spray paint, galvanized sheet with spray paint
Protection Level
IP30/ IP45/ IP55
Enclosure Type
Three compartments, three doors
Installation Method
Wall-mounted, floor-standing
Enclosure Dimensions
1200*1000*350
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