ABB RELION REB500 Technical Manual page 142
Bay protection functions
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Also See for RELION REB500:
- Operation manual (110 pages) ,
- Applications manual (108 pages) ,
- Engineering manual (98 pages)
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Section 5
Bay protection functions
Signal
SCBypas 1P
SCBypas1P3P
Ext.SCBypas
SynchroChck
ZE Prefault
ZE 1. AR
ZE 2. AR
ZE 3. AR
ZE 4. AR
ZExtension
Master Mode
MasterDelay
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136
Description
Bypass of the synchrocheck and close/open ready signals for the first single-phase
reclosure:
•
on —First single-phase reclosure not enabled by synchrocheck and close/open
ready signals (bypass always active).
•
off —First single-phase reclosure enabled by the synchrocheck and close/open
ready signals(bypass inactive).
Bypass of the synchrocheck and close/open ready signals for the first single or
three-phase reclosure:
•
on —First reclosure not enabled by synchrocheck and close/open ready signals
(bypass always active).
•
off —First reclosure enabled by synchrocheck and close/open ready signals
(bypass inactive).
Bypasses the synchroChck and CO Ready signals. Set to
needed.
Input logic for enabling the close command: [(synchrocheck AND CO Ready) OR
Dead line OR Ext.SCBypas].
Input logic for enabling the close command: [(synchroChk2 AND CO Ready 2) OR
Dead line OR Ext.SCBypas].
Input for a signal from a synchrocheck relay.
Set to
on (T or True), if not needed, not fitted and Dead line or ExtSCBypas not used.
Input logic: [(Synchrocheck AND CO Ready) OR Dead line OR Ext.SCBypas].
Distance relay reach setting before the first fault:
•
on —overreaching (ZExtension signal active)
•
off —underreaching (ZExtension signal inactive)
Distance relay reach after the first reclosure attempt:
•
on —overreaching (ZExtension signal active)
•
off —underreaching (ZExtension signal inactive)
Distance relay reach after the second reclosure attempt:
•
on —overreaching (ZExtension signal active)
•
off —underreaching (ZExtension signal inactive)
Distance relay reach after the third reclosure attempt:
•
on —overreaching (ZExtension signal active)
•
off —underreaching (ZExtension signal inactive)
Distance relay reach after the fourth reclosure attempt:
•
on —overreaching (ZExtension signal active)
•
off —underreaching (ZExtension signal inactive)
Signal to the distance function to switch it to overreach or enable an overcurrent
function with a short delay.
(For 1½ breaker and redundant schemes.)
Selection of an autoreclosure function to be Master:
•
on —Master output signals transmitted
•
off —Master outputs blocked
Input for a signal delaying the closing command from the follower reclosure
function.
This signal picks up when the dead time of the master reclosure function starts and
is reset either by a new trip after the last reclosure of the cycle or at the end of the
wait time following successful reclosure by the master.
Set to
off (F or False), if not needed.
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1MRK 505 406-UEN B
off (F or False), if not
Bay protection functions REB500
Technical manual
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