Photovoltaic grid-connected box
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Overview
The product is mainly used in household photovoltaic distributed grid-connected power generation system and small industrial and commercial photovoltaic power generation system. It is connected in series between grid-connected inverter and power grid. The product has a series of protections such as anti-island protection, voltage failure trip, power grid low voltage, power grid overvoltage, input lightning protection, system overcurrent, power grid isolation, etc. Accurate power metering, transmission and intelligent operation control are essential parts of household grid-connected power generation system, products through the industry standard CCC certification, CE certification.
Product Details
Main features
Reserved installation position of metering meter and collector;
Metering meters can be sealed with windows and lead (electricity theft prevention); The integrated design concept of the product, the power distribution part is completely isolated from the metering part, reducing electromagnetic interference; A variety of self-compound over-under-voltage protectors and photovoltaic special reclosing circuit breakers are optional to meet the use requirements and acceptance standards of different regions. The box cover needs a professional key to open to realize professional management;
Spray box and stainless steel box optional; outdoor installation, the use of more secure;
Support special requirements and function customization.
Technical parameters
Product Model | BWX (single phase) | BWX (three-phase) |
Installation power | 3KW-20kW | 3KW-200KW |
Number of inverter input | 1 way/2 way/3 way/4 way (the above recommended junction box) | |
Number of grid-connected output circuits | 1 road | |
Grid connection requirements | Single-phase/three-phase grid connection | |
Grid-connected voltage | AC:220 AC:380 | |
Switching capacity | 20A-100A | 32A-400A |
Protection function | ||
Short circuit protection | Yes | |
Overload protection | Yes | |
Lightning protection | Yes (nominal current: In:20KA,Imax: 40KA, Up≤ 4kv) | |
Isolation protection (visual breakpoint) | (knife switch/hand-pull isolating switch) | |
Over and under voltage protection | Yes | |
automatic reclosing | Yes | |
Grid-connected switch | ||
Self-compound over-under-voltage protector (optional) 40A~125A | 1. When the power grid is cut off or the bias voltage is> 20%, it will be automatically disconnected (internally disconnected); 2. When the power grid returns to normal, it will automatically suck (internally connected); | |
Photovoltaic special small reclosing circuit breaker (optional) 20A-100A | 1. When the power grid is cut off or the bias voltage is more than 20%, the brake will be automatically opened (operation handle action); 2, when the power grid returns to normal, automatic closing (operating handle action); 3. Manual operation and automatic operation can be switched; 4: Check pressure closing | |
Plastic case reclosing (optional) 40A-400A | 1. when the power grid is cut off or the bias voltage is> 20%, it will automatically trip (the delay trip time is adjustable from 0 to 10S>; 2. Automatic closing when the power grid returns to normal; 3. Manual operation and automatic operation can be switched; 4: phase loss protection, zero break protection 5: Check pressure closing | |
Environment applicable | ||
Temperature and humidity | Operating temperature:-25 to +60 ℃ Storage temperature:-40 to +70 ℃: Humidity: 0-90% without frost condensation; No corrosive gas place (if any, please specify) | |
Use Altitude | ≤ 2000M | |
regular parameters | ||
Box material | Stainless steel, cold rolled plate plastic spraying, stainless steel plastic spraying, glass fiber reinforced plastic (SMC), transparent plastic box | |
Protection level | Outdoor IP45/IP55/IP65 | |
Type of box | Double door with epitope (distribution warehouse, metering warehouse) Single door without metering warehouse (optional) | |
Installation method | Wall-mounted | |
Box size (length * width * height) | Customize on demand | |
