Description
Overview
The RET670 1MRK002816-AB is a high-performance transformer protection relay designed for medium and high-voltage transformer applications. As part of the Relion® series, it delivers comprehensive protection, monitoring, and control for power transformers. With advanced algorithms and versatile communication capabilities, it ensures reliable operation and seamless integration into modern substation automation systems.
Technical Specifications
Model: RET670 1MRK002816-AB
Voltage Range: Up to 110 kV
Power Supply:
Nominal Voltage: 24 VDC or 110/220 VDC/AC
Operating Voltage Range: 19.2 VDC to 276 VDC
Inputs/Outputs (I/O):
Digital Inputs: 6 configurable
Digital Outputs: 6 configurable
Analog Inputs: 2 configurable
Relay Outputs: 4 configurable
Protection Functions:
Transformer Differential (87)
Overcurrent (50/51)
Restricted Earth Fault (64)
Low Voltage (27)
Overload (49)
Thermal (49T)
Unbalanced Current (51N)
Phase Sequence (47)
Instantaneous Overcurrent (50N)
Communication Protocols:
IEC 61850
Modbus RTU/TCP
DNP3
RS-232, RS-485
Display: 4-line graphical LCD
Operating Temperature: −40°C to +70°C
Storage Temperature: −40°C to +85°C
Dimensions: 200 × 220 × 130 mm (W × H × D)
Weight: 14.5 kg
Mounting: Rack-mounted or panel-mounted
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