• Woonyoung WYR-OG4DC Digital 3-Phase Overcurrent and Ground Overcurrent Relay (OCR+OCGR)
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Woonyoung WYR-OG4DC Digital 3-Phase Overcurrent and Ground Overcurrent Relay (OCR+OCGR)

Woonyoung WYR-OG4DC Digital 3-Phase Overcurrent and Ground Overcurrent Relay (OCR+OCGR)

Digital relay combining three-phase overcurrent and ground overcurrent protection (ANSI 50/51, 50/51N) for 3CT plus residual or zero-sequence CT.

Key features

  • Three-phase overcurrent plus ground overcurrent elements
  • IEC 60255 and KEPCO time curves
  • Fault memory of operating current and operating time
  • RS-485 Modbus communication
  • Free-voltage auxiliary supply AC/DC 110-240 V

Specifications

Standard IEC 60255, KEMC 1120, KEPCO
Aux. power AC/DC 110-240 V free voltage (DC 110/220 V, 5 W), 50/60 Hz
Trip contact 1a, AC 250 V / 10 A
Thermal withstand 10 A continuous; 100 A for 10 s; 200 A for 1 s
Insulation resistance > 100 MOhm at DC 500 V (IEC 60255-5)
Dielectric withstand AC 2 kV for 1 min (IEC 60255-5)
Impulse withstand 5 kV, 1.2/50 us (IEC 60255-5)
Shock resistance Approx. 30 G, 3 times in each of 3 directions
Vibration resistance 30 Hz, 0.4 mm double amplitude, 600 s in X, Y and Z
Operating temperature -10 to +55 C
Storage temperature -20 to +70 C
Degree of protection IP52
WYR-OG4DC Elements: OCR x 3 + OCGR x 1
Digital Protection RelaysWoonyoung
1 product code available in this family
Sourced direct from KoreaExport-ready supplyCompetitive pricing
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Woonyoung WYR-OG4DC Digital 3-Phase Overcurrent and Ground Overcurrent Relay (OCR+OCGR)

Brand Woonyoung·Digital Protection Relays

Available part numbers (1)

WYR-OG4DC

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WYR-OG4DCElements: OCR x 3 + OCGR x 1

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