ABB REB670 Applications Manual page 8
Busbar protection 2.1 ansi, relion 670 series
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Also See for REB670:
- Applications manual (554 pages) ,
- Commissioning manual (196 pages) ,
- Operator's manual (116 pages)
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2
Example 1.....................................................................................63
Example 2.....................................................................................63
Example 3.....................................................................................64
most commonly used CT connections..........................................67
set to the IED................................................................................68
to the IED......................................................................................73
Example how to connect single-phase CT to the IED.................. 76
Setting of voltage channels............................................................... 78
Example........................................................................................78
most commonly used VT connections..........................................78
connected VT to the IED.............................................................. 79
Example on how to connect a phase-to-phase connected VT
to the IED......................................................................................81
high impedance grounded or ungrounded netwoeks................... 83
impedance grounded or solidly grounded power systems........... 86
Example on how to connect a neutral point VT to the IED........... 89
Section 5 Local HMI............................................................................ 91
Display.................................................................................................... 92
LEDs....................................................................................................... 95
Keypad....................................................................................................95
Local HMI functionality............................................................................97
Protection and alarm indication......................................................... 97
Parameter management ...................................................................98
Front communication......................................................................... 99
Section 6 Differential protection........................................................ 101
Busbar differential protection ............................................................... 101
Identification.................................................................................... 101
Basic applications............................................................................103
General.......................................................................................103
Meshed corner application and T-connection application.......... 103
Busbar protection applications........................................................ 103
General.......................................................................................103
Distinctive features of busbar protection schemes..................... 104
Application manual
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