ABB 1MRK505137-BEN Features Line differential protection IED RED670

Features

• A protection, control, and monitoring IED with extensive functional library and configuration

possibilities and expandable hardware design to meet specific user requirements

• For overhead lines and cables

• For transformer feeders

• For single and/or three phase tripping

• High impedance differential protection for tee-feeders

• Phase-segregated line differential protection with up to six stabilized inputs for up to five line terminals with:

- Charging current compensation

- Separate inputs for each CT in double breaker, ring and one and a half breaker

installations for improved through fault stability

- Suitable for multiplexed, route switched, as well as dedicated fibre, communication networks using C37.94 protocol

- Power transformers can be included in the protected zone

- Transfer of up to eight binary signals

- Time synchronization with the echo-method or built-in GPS

• Full scheme phase-to-phase and phase-to-earth distance protection with up to three zones:

- All types of scheme communication

- Load encroachment feature

• Synchrocheck and dead-line check function for single- or multi-breaker arrangements:

- Selectable energizing direction

- Two functions with built-in voltage selection

- For automatic or manual synchrocheck and with different settings

• Auto-reclosing function for single- two-, and/or three-phase reclosing:

- Two functions with priority circuits for multi-breaker arrangements

- Co-operation with synchrocheck function

- Can be switched On-Off from remote through communication or with local switches through binary inputs

• Selectable additional software functions such as distance protection, control and monitoring

• Built-in data communication modules for station bus IEC 61850-8-1

• Data communication modules for station bus IEC 60870-5-103. LON and SPA

• Integrated disturbance and event recorder for up to 40 analog and 96 binary signals

• Time synchronization over IEC 61850-8-1. LON,SPA, binary input or with optional GPS module

• Analog measurements accuracy up to below 0.5% for power and 0.25% for current and voltage and with site calibration to optimize total accuracy

• Versatile local human-machine interface

• Extensive self-supervision with internal event recorder

• Six independent groups of complete setting parameters with password protection

• Powerful software PC tool for setting, disturbance evaluation and configuration

• Remote end data communication modules for C37.94 and G.703