Main Unit SAQE-A200

• Detection of two groups of three phase currents、zero-sequence current and zero-sequence voltage
• PC module structure, easy to be extended and maintained
• Man-machine interface of big LCD, line diagram display, Chinese menu
• 5 high-capacity and high-speed tripping junctions for standard configuration， extended to 17 tripping junctions at most
• 6 digital inputs for standard configuration， extended to 18 digital inputs at most
• 2 arc sensor access，22 sensor access at most
• A warning junction switched between normally open and normally closed
• Integrate the event log、disturbance record and fault wave into the arc protection system to improve the analysis ability of arc and pre-fault、fault and post-fault
• Self-checking of arc or receive the arc signal of other I/O units 
• The optional tripping logic-arc or arc and current
• Guarantee the quick tripping and adjustable current value setting
• Two RJ-45 ports used to connect the extension units
• RS485 communication port,ethernet port and front panel USB port.Support IEC 61850,ModbusRTU/TCP,IEC-103 and so on.
• Continuous self-checking of all units.
• Breaker failure protection function.