ABB RET670 Installation And Commissioning Manual

Master Follower (MF) method..............................................210
Completing the test..............................................................212
Section 15
Commissioning and maintenance of the fault
clearing system............................................................213
Installation and commissioning.......................................................213
Commissioning tests......................................................................214
Periodic maintenance tests............................................................214
Visual inspection........................................................................215
Maintenance tests.....................................................................215
Preparation...........................................................................216
Recording.............................................................................216
Secondary injection..............................................................216
Alarm test.............................................................................216
Self supervision check..........................................................216
Trip circuit check..................................................................217
Measurement of service currents.........................................217
Restoring..............................................................................218
Section 16 Fault tracing and repair................................................219
Fault tracing....................................................................................219
Information on the local HMI......................................................219
Using front-connected PC or SMS............................................220
Repair instruction............................................................................222
Repair support................................................................................223
Maintenance...................................................................................223
Section 17 Glossary.......................................................................225
Table of contents
9
Installation and commissioning manual

ABB RET670 Specifications

General

Rated Frequency	50/60 Hz
Inputs	Analog and binary inputs
Application	Protection of power systems
Communication Protocols	IEC 61850, DNP3, Modbus
Operating Temperature Range	-25°C to +55°C
Mounting	Rack mounted
Number of Binary Inputs	Up to 48
Number of Binary Outputs	32
Protection Functions	Overcurrent Protection
Outputs	Binary outputs
Enclosure	IP 54
Type	Line Differential Protection
Number of Analog Inputs	24