Inputs And Outputs; Ct/Vt Inputs; Binary Inputs; Binary Outputs - ABB RELION REB500 Technical Manual

1MRK 505 406-UEN B
•
•
Evaluation of instantaneous values (non-digitally filtered analogue signals) resulting in a
large permissible frequency range. Detection of the largest and smallest of the three-
phase voltages in the case of three-phase measurement.
No filtering of harmonics or DC component.
• Choice of phase for the voltage inputs on busbar and line sides (for amplitude and phase-
angle adjustment).
• Additional voltage input (for use in double busbar stations) with provision for remote
switchover.
• Provision for remote selecting the operating mode.
5.7.3

Inputs and outputs

5.7.3.1

CT/VT inputs

• Voltages (2 or 3 single or three-phase inputs) for:
•
•
5.7.3.2

Binary inputs

• 2 inputs for enabling the synchrocheck function (ReleaseInp1 and ReleaseInp2)
• 3 inputs for interlocking the synchrocheck O/Ps (BlckTrigBus1, BlckTrigBus2 and
BlckTrigLine)
• 1 input for bypassing the synchrocheck function (OverridSync)
• 2 inputs for remotely selecting operating mode (OpModeInp1 and OpModeInp2)
• 2 inputs for remotely switching voltage channels in double busbar stations (uBus1Activ
and uBus2Activ)
5.7.3.3

Binary outputs

• Function pick-up (Start)
• Circuit-breaker closing enable signal (PermitToClos)
• Function disabled signal (SyncBlockd)
• Enable output blocked signal (TrigBlockd)
• Synchrocheck bypassed signal (OverridSync)
• Amplitude difference in permissible range (AmplDifOK)
• Phase-shift in permissible range (PhaseDifOK)
• Frequency difference in permissible range (FreqDifOK)
• Busbars energized (LiveBus)
• Busbars de-energized (DeadBus)
• Line energized (LiveLine)
• Line de-energized (DeadLine)
Bay protection functions REB500
Technical manual
Busbar voltage — single-phase voltage measurement
Line voltage — single or three-phase voltage measurement
uBusInput1, uBusInput2 — single-phase
uLineInput — single or three-phase
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Section 5
Bay protection functions
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