ABB RELION REB500 Technical Manual page 124

Section 5
Bay protection functions
Signal
Operat.-Mode
supervisTime
t-Reset
uBusInp-Ph
uBusInput1
uBusInput2
uLineInp-Ph
uLineInput
uBus1Activ, uBus2Activ
1)
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Description
Possible synchrocheck operating modes:
• SynChck only: Synchrocheck [Synchrocheck conditions
fulfilled AND (bus live AND line live)]
• BusD AND LineL: Synchrocheck OR (bus dead AND line
live)
• BusL AND LineD: Synchrocheck OR (bus live AND line
dead)
• BusD XOR LineD: Synchrocheck OR (bus dead AND line
live) OR (bus live AND line dead)
• BusD AND LineD: Synchrocheck OR (bus dead AND line
dead)
• BusD OR LineD: Synchrocheck OR (bus dead OR line
dead)
• BusD: Synchrocheck OR (bus dead)
• LineD: Synchrocheck OR (line dead)
Period between the function picking up and it issuing the CB
close enable (
synchronism must remain fulfilled during this time,
otherwise the function is reset.
Reset time following the non-fulfillment of one or more
synchronism conditions.
Choice of phase I/P on the busbar side.
Possible settings: 1 ph L1L2, L2L3 or L3L1; 1 ph L1E, L2E or L3E
The phase chosen must agree with the voltage input channel
selected (that is, uBusInput1 and, if selected, uBusInput2).
1st voltage I/P channel on the busbar side.
This must agree with the phase chosen (uBusInp-Ph).
2nd voltage input channel (if applicable) on the busbar side.
This must agree with the chosen phase (uBusInp-Ph) and
must agree with the voltage of uBusInput1. If a second input
is not configured, the function only takes account of the first
voltage I/P channel (uBusInput1).
Choice of phase input on the line side.
Possible settings:
1 ph L1L2, L2L3 or L3L1; 1 ph L1E, L2E or L3E; 3 ph Y; 3 ph Δ
The phase chosen must agree with the voltage I/P channel
selected (that is, uLineInput).
Voltage input channel on the line side.
This must agree with the chosen phase (uLineInp-Ph).
Binary inputs for remote switching between voltage input
channels connected to double busbars (mimic busbar).
These inputs shall be applied only if the second busbar input
channel has been configured ('uBusInput2').
• F: input disabled
• T: input enabled
• xx: all binary inputs (or outputs of protection functions)
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Bay protection functions REB500
1MRK 505 406-UEN B
Technical manual