Substation Automation

Overcurrent protection IED(SSP-K110)

Overcurrent protection IED(SSP-K110)

Devices installed for the purpose of power facility and disaster preventive and security facility in the substation(KEPCO)
Apply monitoring/measurement/control/interlock function
Automatic frequent monitoring, breakdown recording, and breakdown analyzing function
Protect short circuit and earth fault over-current and monitor load imbalance

Main functions

  • Frequent (50) and one-time (51) operation function on short circuit/earth fault breakdown
  • Judge short circuit/earth fault breakdown
  • Provide HMI interface and IEC61850 communication
  • Support ANSI/IEEE reset curve and customized inverse time curve

General Specification

Division Item Specification
Terms of use Ambient temperature -25℃ ~ +55℃
Relative humidity 10% ~ 100%
Elevation 1,500m less than
Rated Frequency 60Hz
Voltage Phase voltage : 110/√3V, Interlinear voltage : 110V
Electric current 5A
Power DC 125V(90~140V)
Outward form Size 445 x 255 x 247mm (W x H x D)
Form Stand-Alone Type
Weight 11kg less than
Quality of the material Aluminum

Hardware Specification

Division Specification Note
Communication port Ethernet 100Base-FX, 2 channels IEC 61850
100Base-T, 1 channels TCP/IP
Time sync. IRIG-B 120 or SNTP
RS-232 Serial 9pin (Female-Type), 1 port Console
Serial 9pin (Male-Type), 1 port Development purposes
Enter Contact 64 points
Contact output 28 points
CT 4 channels
PT 5 channels
AI Transducer 10 channels
RTD 4 channels
Display TFT Color Graphic LCD 7" (800 x 480)
Button 18
LED 36

Apparent Dimension