400KW High And Low Voltage Grid-connected Cabinet
The photovoltaic grid-connected cabinet refers to the equipment used to convert the direct current energy generated by the photovoltaic power generation system into alternating current energy and inject it into the power system through the connection point. The photovoltaic grid-connected cabinet is usually composed of a DC input, an inverter, an AC output, a protection device and a monitoring system. It converts the DC power output of the photovoltaic cell pack into the AC power required by the power system through the inverter, and realizes the smooth grid connection of the photovoltaic power generation system and the power system.
The photovoltaic grid-connected cabinet realizes efficient energy transmission between the photovoltaic power generation system and the power system mainly through seamless docking with the power system. Its working principle includes the following aspects:
1. The output DC power of the photovoltaic cell pack can enter the photovoltaic grid-connected cabinet through the DC input terminal of the photovoltaic grid-connected cabinet.
2. The inverter in the photovoltaic grid-connected cabinet converts direct current energy into AC power, and synchronizes the frequency and phase with the power system.
3. The inverter injects the generated AC power into the power system through the AC output terminal to establish a power transmission channel between the photovoltaic power generation system and the power system.
4. The background monitoring and control system of the photovoltaic power station monitors and manages the operating status of the photovoltaic grid-connected cabinet in real time to ensure the safe and stable operation of the photovoltaic power generation system.
Technical parameter
|
Product model |
CSGGD |
|
Number of inverter inputs |
1路-5路(It is recommended that an AC bus box be used) |
|
Number of grid-connected output channels |
1路 |
|
Grid-connection requirement |
Three-phase grid-connected cabinet |
|
Grid-connected voltage |
AC：380V-AC：500V |
|
Switch brand (optional) |
Changsong, Delixi, Chint, Changshu, ABB, Schneider |
|
Protection function |
|
|
Short circuit protection |
There are |
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Overload protection |
There are |
|
Lightning protection |
There are(Nominal current: In: 20KA, Imax: 40KA, UP≤4kV) |
|
Isolation protection(Visual breakpoint) |
There are (knife/disconnecting switch) |
|
Over and under voltage protection |
There are |
|
Automatic reclosing |
There are |
|
Panel manually open and close |
There are |
|
Optional function |
1, online power quality monitor; (optional) 2, anti-island protection device; (optional) 3, fault disconnecting device; (optional) |
|
Grid-connected switch |
|
|
Plastic case reclosing (100A-800A) (optional) |
1, power grid power failure or bias > 20%, automatic trip (0-10s delay trip time adjustable); 2, the power grid returns to normal, automatic closing; 3, manual operation can be switched to automatic operation; 4, lack of phase protection, break zero protection 5, check the pressure closing |
|
Universal frame Circuit Breaker (200A-4000A) (optional) |
1, power grid power failure or bias > 20%, automatic trip (0-10s delay trip time adjustable); 2, the power grid returns to normal, automatic closing; 3, manual operation can be switched to automatic operation 4, lack of phase protection, break zero protection; 5: Check the pressure closing |
|
Environmental applicability |
|
|
Temperature and humidity |
Operating temperature: -25 to 60℃ Storage temperature: -40 to 70℃ Humidity: 0-90% No frost no corrosive gas place (if there is, please specify) |
|
Service altitude |
≤3000M |
|
Salt spray resistance |
Standard salt spray test 336 hours |
|
Conventional parameter |
|
|
Cabinet material |
Cold rolled plate spray, stainless steel |
|
Place of use |
Indoor type (customizable outdoor type) |
|
Cabinet type |
Distribution bin, measuring bin, transformer bin, isolation switch bin |
|
Installation mode |
Floor vertical mounting |
|
Cabinet size (D * W * H) |
600mm*800mm*2200mm/800mm*800mm*2200m (customizable) |
FAQ
1,What is the installation method?
Floor vertical mounting
2,Where can I use it?
They are generally indoor, and can be customized if needed for outdoor use
3,Shell size?
The general is 600mm*800mm*2200mm/800mm*800mm*2200mm, there are special requirements can be customized
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