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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
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