BWG Photovoltaic Grid-Connected Cabinet
Category:
PV New Energy Grid Cabinet
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Introduction
This product is primarily designed for high‑power commercial and industrial grid‑connected photovoltaic systems ranging from 100 kW to 2000 kW. It is connected in series between the grid‑tie inverter (or AC combiner box) and the utility grid, offering a comprehensive suite of protection features, including anti‑islanding protection, voltage‑sensing closing, undervoltage tripping, grid overvoltage protection, input surge protection, system overcurrent protection, and grid isolation. Its multifunctional meter provides clear display of operating parameters and fault indications, ensuring transparent visibility into system status. The product has been certified to industry standards such as CCC, CE, and ISO 9001 quality management system certification.
Product Details
Key Features
Provision is made for the installation of metering meters and data collectors; metering meters feature a transparent viewing window and lead‑seal ports (to prevent electricity theft). The product adopts an integrated design, with the distribution section completely isolated from the metering section, thereby reducing electromagnetic interference. It offers photovoltaic‑specific molded‑case recloser circuit breakers and universal frame circuit breakers (optional), ensuring more reliable performance. It can be equipped with online power‑quality monitoring systems, anti‑islanding protection devices, fault‑clearing disconnectors, and other auxiliary equipment. Both outdoor and indoor installation options are available, making installation more convenient.
Supports customizations for special requirements and features.
Technical Specifications
| Product Model |
BWG |
| Number of inverter input channels |
Routes 1 through 5 (the above are recommended to be equipped with AC combiner boxes) |
| Number of grid-connected output channels |
Route 1 |
| Grid-Connection Requirements |
Three-phase grid-connection cabinet |
| Grid-connected voltage |
AC:380V~AC:500V |
| Switch brand (optional) |
Delixi, Chint, Changshu, Liangxin, ABB, Schneider |
| Protection function |
|
| Short-circuit protection |
There is |
| Overload protection |
There is |
| Lightning protection |
Available (Nominal current: In: 20 kA, Imax: 40 kA, Up ≤ 4 kV) |
| Isolation Protection (Visual Breakpoint) |
There is (a disconnect switch / an isolating switch) |
| Overvoltage and undervoltage protection |
There is |
| Automatic Reclosing |
There is |
| Manual opening and closing of the switchgear panel |
There is |
| Optional Features |
1. Online power quality monitor; (optional) 2. Anti-islanding protection device; (optional) 3. Fault‑based disconnection device; (optional) |
| Grid-connection switch |
|
| Molded-case recloser (100 A to 800 A) (optional) |
1. When the grid power is lost or the bias voltage exceeds 20%, the circuit breaker trips automatically (with an adjustable trip delay of 0–10 seconds). 2. When the power grid returns to normal, the circuit breaker automatically recloses. 3. Manual and automatic operation modes are switchable; 4: Phase-loss protection, neutral-disconnection protection 5: Check for pressure closing |
| Universal frame circuit breaker (200 A to 4000 A) (optional) |
1. When the grid power is lost or the bias voltage exceeds 20%, the circuit breaker trips automatically (with an adjustable trip delay of 0–10 seconds). 2. When the power grid returns to normal, the circuit breaker automatically recloses. 3. Manual and automatic operation modes are switchable; 4: Phase-loss protection, neutral-disconnection protection 5: Check for pressure closing |
| Environmentally suitable |
|
| Temperature and humidity |
Operating temperature: -25 to +60°C Storage temperature: -40 to +70°C Humidity: 0–90% non-condensing Non-corrosive gas environment (please specify if applicable) |
| Use altitude |
≤2000M |
| Regular parameters |
|
| Cabinet material |
Cold-rolled sheet with powder coating, stainless steel |
| Place of Use |
Indoor type (customizable outdoor type) |
| Cabinet Type |
Distribution compartment, metering compartment, instrument transformer compartment, disconnect switch compartment |
| Installation method |
Floor-standing installation |
| Cabinet dimensions (depth × width × height) |
600mm × 800mm × 2200mm / 800mm × 800mm × 2200mm (customizable) |
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