GE T35

T35 TRANSFORMER PROTECTION SYSTEM – INSTRUCTION MANUAL iii
T35 Transformer Protection System
Table of contents
1INTRODUCTION 1.1 Safety symbols and definitions ........................................................................... 1-1
1.1.1 General cautions and warnings .................................................................................... 1-1
1.2 For further assistance........................................................................................... 1-2
2PRODUCT
DESCRIPTION
2.1 Product description ............................................................................................... 2-1
2.2 Security .................................................................................................................... 2-3
2.3 Order codes............................................................................................................. 2-7
2.3.1 Order codes with enhanced CT/VT modules........................................................... 2-7
2.3.2 Order codes with process bus modules ..................................................................2-10
2.3.3 Replacement modules.....................................................................................................2-13
2.4 Signal processing.................................................................................................2-16
2.4.1 UR signal processing ........................................................................................................2-16
2.5 Specifications........................................................................................................ 2-18
2.5.1 Protection elements..........................................................................................................2-18
2.5.2 User-programmable elements ....................................................................................2-20
2.5.3 Monitoring..............................................................................................................................2-22
2.5.4 Metering..................................................................................................................................2-22
2.5.5 Inputs .......................................................................................................................................2-23
2.5.6 Power supply........................................................................................................................2-24
2.5.7 Outputs....................................................................................................................................2-25
2.5.8 Communication protocols..............................................................................................2-27
2.5.9 Inter-relay communications..........................................................................................2-28
2.5.10 CyberSentry security.........................................................................................................2-30
2.5.11 Graphical front panel........................................................................................................2-30
2.5.12 Environmental......................................................................................................................2-30
2.5.13 Type tests...............................................................................................................................2-31
2.5.14 Production tests..................................................................................................................2-31
2.5.15 Approvals ...............................................................................................................................2-32
2.5.16 Maintenance.........................................................................................................................2-32
3 INSTALLATION 3.1 Unpack and inspect ............................................................................................... 3-1
3.2 Panel cutouts.......................................................................................................... 3-2
3.2.1 Horizontal units ..................................................................................................................... 3-2
3.2.2 Vertical units........................................................................................................................... 3-5