Substation Automation

Transmission line protection IED(SLP-K310)

T/L protection IED(SLP-K310)

Features

  • Current differential motion protecting IED
  • Distance protection IED
  • Connect with PCM optic communication
  • Save breakdown event and waveform
  • Apply 7inch touch LCD
  • Configure simple substation single line diagram
  • Available to setup LED from operator

Current differential motion protecting IED

  • Support 87 and 87G protecting function in the use of current difference between phases
  • 64kbps PCM communication satisfying IEEE C37.94/ITU G.703 specifications
  • Support dual communication method and communication error extracting function at all times for stable PCM communication
  • Calculate phasor on current of substation and the current difference between phases in the substation
  • Compensate charging current against current loss from capacitance effect between transmission line and the ground
  • Support expression function on breakdown point
  • Support re-closing function

Distance protecting IED

  • Support 21S and 21G protecting function in the use of calculation of impedance
  • Judge the diretion of breakdown by using polarizing voltage that is strong against breakdown
  • Support zone 1, 2, and 3 protecting areas in each 21S/21G
  • Prevent over-reach from logic of each phase against breakdown for zone 1
  • Judge earth fault/short circuit breakdown in summary of results from the judgment on each zone and phase
  • Support expression function on breakdown point
  • Support re-closing function in case of trip in zone 1 when main protective function is stopped

General Specification

Division Item Specification
Terms of use Ambient temperature -25℃ ~ +55℃
Relative humidity 10% ~ 90%
Elevation 1,500m less than
Rated Frequency 60Hz
Voltage Phase voltage : 115/√3V, Interlinear voltage : 115V
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 10kg less than
Quality of the material Aluminum

Hardware Specification

Division Specification Note
Communication port Ethernet 100Base-T, 1 channels, Twisted-pair Operational S/W
(TCP/IP)
RS-232 Male-Type(Serial 9pin) 2 channels Operational S/W
Reserve
IEEE C37.94(ITU G.703) 2 channels, ST type connector(Options, Using an external module) PCM
Time sync. IRIG-B120
DI 24 points
DO 48 points
CT Current differential motion protecting IED 8 channels / Distance protecting IED 4 channels
PT Current differential motion protecting IED 5 channels / Distance protecting IED 3 channels
Button 18
LED 42
LCD 7" Color TFT-LCD 800x480

Apparent Dimension