Overview
BWG photovoltaic grid-connected cabinet is an important component for connecting centralized inverters and step-up transformers or AC combiner boxes and step-up transformers. The incoming line of this photovoltaic grid-connected cabinet adopts circuit breaker input or direct input, the output adopts circuit breaker or load disconnect switch, the busbar adopts electroplated or purified busbar connection, and provides secondary lightning protection.
The system’s maximum rated voltage is AC690V. The protection level is IP40 indoors and IP65 outdoors. The cables for secondary measurement and control must be larger than 2.5mm² for current, 1.5mm² for voltage, and 1.0mm² for control. The measuring current transformer must be a 0.5-class current transformer, and the metering transformer must be a 0.2S-class current transformer.
Related functions can also be added according to customer requirements. This product adopts professional electrical design and component selection to make the internal structure of the cabinet safe, simple and beautiful, convenient for on-site wiring and maintenance, and ensure long-term stable operation of the equipment.
Technical Specification
| Item | BWG |
| Max Input Voltage | 690VAC |
| Rate Frequency | 50Hz |
| Max Rated Current | 3150A |
| Measurement Data | Three-phase current, three-phase voltage, active power, apparent power,power factor, frequency, electricity |
| Communication Method / Protocol | RS485 bus / standard MODBUS-RTU protocol |
| Temperature and Humidity | working temperature:-40-+85℃ humidity 95%, no condensation, no corrosive gas place |
| Altitude | ≤4000m |
| Body Material | Hot-dip galvanized steel sheet/stainless steel/cold-rolled steel sheet |
| Protection Level | IP40 |
| Dimension (W × D × H) | 2260mm × 800mm × 600mm |
| lnstallation Method | Floor type |
