• Kyongbo Electric Digital Over / Under Frequency Relay GD3-H11 (81O, 81U)
1 1

Kyongbo Electric Digital Over / Under Frequency Relay GD3-H11 (81O, 81U)

Kyongbo Electric Digital Over / Under Frequency Relay GD3-H11 (81O, 81U)

GD3-H11 is a digital under frequency relay designed to the KEPCO general technical specification, applicable to transmission lines and distributed power supply interconnection lines.

Key features

  • 4-step OFR / UFR settings
  • Built-in UVR element prevents malfunction during reclosing
  • Metering, event and fault waveform recording, SCADA communication

Specifications

Control Power AC/DC 110-220 V (free voltage)
Display Character LCD (4 lines x 20 characters)
Communication Modbus RTU, RS-485 1 port (rear), RS-232C 1 port (front)
Event Record Up to 1,024 events
Fault Waveform Record Up to 6 records
Dimensions (W x H x D) 168 x 218 x 250 mm
Weight approx. 5 kg
Applied Standard GS-5945-0016
GD3-H11 Functions: 81O, 81U | Digital Input: 3 points, AC/DC 110-220 V | Trip Output: 1a x 4 (16 A at AC 250 V) | Alarm Output: 2a x 4, 2b x 1 (5 A at AC 250 V) | Analog Input: Voltage 1 circuit, AC 63.5-190 V | OFR Setting: 50.01-64.00 Hz | UFR Setting: 46.00-60.00 Hz | Time Setting: 0.05-60.00 s
Digital Protective RelaysKyongbo Electric
1 product code available in this family
Sourced direct from KoreaExport-ready supplyCompetitive pricing
RFQ List 0 Email about this

Need a different model, or a part not listed here? Send us your parts list →

Kyongbo Electric Digital Over / Under Frequency Relay GD3-H11 (81O, 81U)

Brand Kyongbo Electric·Digital Protective Relays

Available part numbers (1)

GD3-H11

How to order

Send the Kyongbo Electric part numbers and quantities through our RFQ form or to info@prosourcemro.com. We confirm price, availability and lead time within 1 business day — no account needed.

RFQ List 0 →
View full details
Product codes & specifications
0 selected
RFQ List (0)
Product codeSpec
GD3-H11Functions: 81O, 81U | Digital Input: 3 points, AC/DC 110-220 V | Trip Output: 1a x 4 (16 A at AC 250 V) | Alarm Output: 2a x 4, 2b x 1 (5 A at AC 250 V) | Analog Input: Voltage 1 circuit, AC 63.5-190 V | OFR Setting: 50.01-64.00 Hz | UFR Setting: 46.00-60.00 Hz | Time Setting: 0.05-60.00 s

Need a different model, or a part not listed here? Send us your parts list →

Related products

All Relays & Switches →