PRS-7564 series intelligent grid connection cabinets are specially designed for energy storage systems, and can be used together with PCSs, energy storage coordinated controllers, distributed power supply units and loads. They facilitate automatic and seamless switching between grid connection and disconnection.
Intelligent Grid Connection/Disconnection Switching Cabinet
The product can be used for grid-connected/grid-disconnected microgrids and microgrid training platforms.
Product Overview
Product advantages
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01
The time required for switching between grid connection and grid disconnection is less than 10ms, and the function of active and passive switching between grid connection and grid disconnection is available. -
02
Active switching between grid connection and grid disconnection: When the energy storage coordinated controller detects that the grid-side voltage is abnormal, it controls SCR to cut off, then PCSs provide voltage support for the microgrid, and the system operates in islanding mode; When the energy storage coordinated controller detects that the grid voltage returns to normal, the microgrid system synchronizes its voltage with the grid voltage, and then SCR is turned on to connect to the grid and resume grid-connected operation. -
03
Passive switching between grid connection and grid disconnection: When the energy storage coordinated controller receives a command of islanding operation, it controls SCR to cut off, then PCSs provide voltage support to the microgrid, and the system operates in the islanding mode; When the energy storage coordinated controller receives a command of exiting islanding operation, the microgrid system synchronizes its voltage with the grid voltage, and then SCR is turned on to connect to the grid and resume grid-connected operation.
Technical parameters
| Model | PRS-7564-50 | PRS-7564-100 | PRS-7564-250 |
| Rated voltage | 400V | 400V | 400V |
| Rated current | 73A | 144A | 360A |
| Rated frequency | 50Hz | 50Hz | 50Hz |
| Rated power | 50KVA | 100KVA | 250KVA |
| Maximum current | 90A | 175A | 435A |
| Time required for switching between grid connection and grid disconnection | Automatic, ≤10ms | Automatic, ≤10ms | Automatic, ≤10ms |
| Anti-countercurrent of grid | optional | optional | optional |
| PV inverter switch | 160A | 250A | 630A |
| PCS switch | 160A | 250A | 630A |
| Grid switch | 160A | 250A | 630A |
| Load switch | 160A | 250A | 630A |
| Lightning protection | Type II | Type II | Type II |
| Protection level | IP20 | IP20 | IP20 |
| Humidity | 0 ~ 95% without condensation | 0 ~ 95% without condensation | 0 ~ 95% without condensation |
| Operating temperature | -25 °C～+55 °C | -25 °C ～+55 °C | -25 °C ～+55 °C |
| Dimensions | 600*600*2260mm | 800*600*2260 | 800*600*2260 |
| Net weight | 300Kg | 400 Kg | 500 Kg |
| Communication interface | RS485/CAN | RS485/CAN | RS485/CAN |