Description

1. The Microprocessor based controller provides protection, control, monitoring.instrumentation and metering with integrated input and output logic, datalogging & fault report.
2.  

   Communication functionality of the controller is achieved via electrical RS485port for remote connection. Additional rear ports including RS232 are availablefor selection.

3.  

   The Feeder Terminal Unit(FTU) is the core of controller. To prevent any damageto FTU from emergency, the control cubicle contains auxiliary power supplyof batteries for uninterruptible power supply, electronic boards and circuitbreakers.

• Protective Functions
• Phase time overcurrent protection (51P）
• Phase instantaneous overcurrent protection (50P-1)
• Two definite time overcurrent settings (50P-2, 50P-3)
• Ground overcurrent protection (51N)
• Ground instantaneous overcurrent protection (50N-1)
• Two definite time ground overcurrent settings (50N-2, 50N-3)
• Negative sequence overcurrent protection (46)
• Phase and ground directional overcurrent protection ( 67P, 67N)
• Over-frequency(810,81V)
• Undervoltage and overvoltage control and alarm ( 27, 59 )
• Up to four reclose cycles (define arecloser cycle 79-1 79-5) close fourtimes/ trip five
• Adaptive reclosing shots: each reclose sequence allows
• independentprogramming of protective functions Sensitive Earth Fault protection

1. Voltage input
   Measuring range:0~ 3V
   Power consumption: each phase is not greater than 0.3VAOverload capacity: 1.4 times the rated value, continuous work
2. Output
   Continuous bearing: 5ABreaking capacity: Dc,inductive load,L/R= 40ms,220V/0.5ADebounce time:1 ~99ms, step lms
3. RS485 /RS232
   Rate: 1200-38400bpsDefault rate: 9600bpsProtocol: ModbuS RTU,IEC60870-5-101,DNP3.0
4. Ethernet port
   Mode: 10/100M (adaptive)
   Interface: Rj45
   Protocol: Modbus TCP/IP,DNP3.0 IEC60870-5-104
5. Cubicle
   The cub icle is integrated with a variety of electronic components, including protection relay andUPS system for device. Extra components and functions are optional.