Power System  1     Digital Distance Relay for Protecting EHV transmission Line 2     Digital Current Differential Relay for Protecting EHV transmission Line 3     Overcurrent Relay 4     Compact Digital Line Fault Locator (LFL-200) 5     Digital Motor Control Center(DMCC) 6     Digital Electricity Meter

Overcurrent Relay

Product Overview XOCR-C4 is a digital overcurrent protection relay, which controls short circuit and ground overcurrents protection over 22.9 KV power lines owned by KEPCO and 154KV/23KV transformers. It uses a high-speed DSP processor which built-in timing and communication functions (DNP3.0, Modbus, etc.) for automatic transformation of the electric power. Characteristics * Short circuit and ground overcurrent protection * DC 125V and AC 110V input * EMC (EMI/EMS) Test     - Complies with relay related international standard IEC60255 Series and the immunity international standard IEC61000-4. Features - Instantaneous and timed operation; Instantaneous operation: Operation within 40ms; Timed operation: Inverse, strong-inverse and super-inverse time curves (IEC60255-3)/ - Metering Real-time 3-phase current metering (RMS, instantaneous values); - Saving and displaying fault data/events; Saving and displaying trip, fail and alarm information; Saving and displaying accident time/date/type/operating elements; Saving and displaying event time/date/type/operating elements; - Analyzing relay status with a software installed on the connected PC; - Assisted and automatic inspection Standard KEMC 1120 IEC 60255 Series IEC61000-4