Woonyoung WYR-OU3DC Digital Over and Under Voltage Relay (OVR 59 / UVR 27)

Digital three-phase over- and under-voltage relay (ANSI 59/27) with inverse and definite time characteristics.

Key features

Three-phase over- and under-voltage elements
Normal inverse and definite 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-OU3DC

Elements: OVR/UVR x 3

Digital Protection RelaysWoonyoung

1 product code available in this family

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Woonyoung WYR-OU3DC Digital Over and Under Voltage Relay (OVR 59 / UVR 27)

Brand Woonyoung·Digital Protection Relays

Available part numbers (1)

WYR-OU3DC

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