ABB REL 356 Current Differential Protection
Page iii
Table of Contents
Unique Remote Communication (WRELCOM) Program .................................................................................. 2-6
Separating the Inner and Outer Chassis ......................................................................................................... 2-7
Test Plugs and FT-14 Switches ...................................................................................................................... 2-7
External Wiring ............................................................................................................................................... 2-7
REL 356 Front Panel Display .......................................................................................................................... 2-8
Vacuum Fluorescent Display .......................................................................................................................... 2-8
Indicators ....................................................................................................................................................... 2-8
Key Switches ................................................................................................................................................. 2-8
Front Panel Operation ..................................................................................................................................... 2-9
Settings Mode ................................................................................................................................................ 2-9
Metering (Volts/Amps/Angle) Mode ................................................................................................................ 2-9
Target (LAST and PREVIOUS FAULT) Mode ................................................................................................. 2-9
Test Mode Function...................................................................................................................................... 2-10
Contact Input Test ........................................................................................................................................ 2-10
Relay Output Test ........................................................................................................................................ 2-11
Self Check.................................................................................................................................................... 2-12
Test Enable .................................................................................................................................................. 2-13
Standing Relay Trip ...................................................................................................................................... 2-13
Network Interface ......................................................................................................................................... 2-13
Digital Fault Recording.................................................................................................................................. 2-14
REL 356 Settings ......................................................................................................................................... 2-14
Monitoring Functions .................................................................................................................................... 2-14
Target (Fault Data) Information ..................................................................................................................... 2-18
Communication Channel Testing .................................................................................................................. 2-18
9600 bps Audio Tone Option Only ................................................................................................................ 2-18
56/64 kbps Option Only ................................................................................................................................ 2-18
Communication Channel Interface ................................................................................................................ 2-18
Receiver Status ............................................................................................................................................ 2-18
Transmitter Status ........................................................................................................................................ 2-18
Routine Visual Inspection ............................................................................................................................. 2-19
Acceptance Testing...................................................................................................................................... 2-19
Normal Precautions ...................................................................................................................................... 2-19
Disassembly Procedures .............................................................................................................................. 2-19
System Diagrams ......................................................................................................................................... 2-19
Section 3 Settings and Application
Introduction .................................................................................................................................................... 3-1
Relay System Setup....................................................................................................................................... 3-4
Firmware Version (VERS) ........................................................................................................................ 3-4
System Frequency (FREQ) ...................................................................................................................... 3-4
Readout in Primary Values (RP) ............................................................................................................... 3-4
Current Transformer Type (CTYP) ............................................................................................................ 3-4
Current Transformer Ratio (CTR) .............................................................................................................. 3-4
Voltage Transformer Ratio (VTR) ............................................................................................................. 3-4
Digital Fault Recording Information ................................................................................................................. 3-4
Trigger for Storing Oscillographic Data (OSC) .......................................................................................... 3-5
Trigger for Storing Fault Records (FDAT) ................................................................................................. 3-5
Ground Trigger Pick Up Level (TRGG) ..................................................................................................... 3-5
Phase Trigger Pick Up Level (TRGP) ....................................................................................................... 3-5
Protection System Settings ............................................................................................................................ 3-5
Change Detector (CD) .............................................................................................................................. 3-5
Dedicated Direct Transfer Trip (DDTT) ..................................................................................................... 3-5
Low Set Current Supervision (ILTS) ......................................................................................................... 3-6
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