GE 845 User Manual

845 TRANSFORMER PROTECTION SYSTEM – INSTRUCTION MANUAL III
Device..................................................................................................................................................4 - 11
Custom Configuration.......................................................................................................................... 4 - 11
Real-time Clock ....................................................................................................................................... 4 - 13
Clock..............................................................................................................................................................4 - 14
PTP Configuration...................................................................................................................................4 - 15
SNTP Protocol...........................................................................................................................................4 - 16
Security ....................................................................................................................................................... 4 - 17
Basic Security...........................................................................................................................................4 - 18
CyberSentry ..............................................................................................................................................4 - 20
Communications .................................................................................................................................... 4 - 26
RS485............................................................................................................................................................4 - 26
WiFi................................................................................................................................................................4 - 27
USB ................................................................................................................................................................4 - 30
Ethernet Ports...........................................................................................................................................4 - 30
Modbus Protocol .....................................................................................................................................4 - 32
Routing.........................................................................................................................................................4 - 36
DNP Protocol.............................................................................................................................................4 - 38
DNP / IEC104 Point Lists ......................................................................................................................4 - 41
IEC 60870-5-104 .....................................................................................................................................4 - 43
IEC 60870-5-103 .....................................................................................................................................4 - 45
IEC 61850....................................................................................................................................................4 - 45
Remote Modbus Device.......................................................................................................................4 - 47
Transient Recorder ................................................................................................................................ 4 - 48
Data Logger .............................................................................................................................................. 4 - 50
Fault Reports ............................................................................................................................................ 4 - 53
Event Data ................................................................................................................................................. 4 - 54
Flex States.................................................................................................................................................. 4 - 54
Front Panel ................................................................................................................................................ 4 - 54
Programmable LEDs..............................................................................................................................4 - 55
Programmable Pushbuttons .............................................................................................................4 - 56
Tab Pushbuttons.....................................................................................................................................4 - 60
Annunciator...............................................................................................................................................4 - 63
Display Properties ..................................................................................................................................4 - 65
Default Screens........................................................................................................................................4 - 66
Home Screens..........................................................................................................................................4 - 67
Resetting..................................................................................................................................................... 4 - 68
Installation................................................................................................................................................. 4 - 68
System ................................................................................................................................................4 - 70
Current Sensing....................................................................................................................................... 4 - 71
Voltage Sensing ...................................................................................................................................... 4 - 71
Traditional VT............................................................................................................................................4 - 71
Power Sensing ......................................................................................................................................... 4 - 73
Power System .......................................................................................................................................... 4 - 73
Transformer .............................................................................................................................................. 4 - 74
Transformer Setup .................................................................................................................................4 - 75
Xfmer Status Detection.....................................................................................................................4 - 100
Thermal Inputs......................................................................................................................................4 - 103
On-load Tap Changer .......................................................................................................................4 - 104
Breakers....................................................................................................................................................4 - 110
Switches....................................................................................................................................................4 - 112
FlexCurves ...............................................................................................................................................4 - 115
Inputs................................................................................................................................................4 - 117
Contact Inputs .......................................................................................................................................4 - 117
Virtual Inputs ..........................................................................................................................................4 - 120
Remote Inputs........................................................................................................................................4 - 122
Analog Inputs .........................................................................................................................................4 - 122
Outputs ............................................................................................................................................4 - 127

GE 845 Specifications

General

Brand	GE
Model	845
Category	Protection Device
Language	English