Toshiba GR200 Series Instruction Manual page 475

Condition logic – setting (TEVLV)
(vii)
The Condition logic determines the reclosing mode of either SPAR or TPAR by detecting the
tipped-phases if SPAR, TPAR, or SPAR&TPAR mode is selected.
ARC1-MODE input
OFF
FT
MPAR
ORIGINAL
SPAR
ARC1-MODE TPAR
SPAR&TPAR
ARC2-MODE input
OFF
FT
MPAR
ORIGINAL
SPAR
TPAR
ARC2-MODE
SPAR&TPAR
When a multiphase fault (TRIP-MPH) occurs in the settings [ARC1-MODE]=SPAR, then
CB1_94TT signal is generated so that the function will reach the final trip stage. When a single
phase fault (TRIP-1PH) evolves to a multiphase fault (TRIP-MPH), then the final trip stage is
also induced; a timer [TEVLV] is provided for this purpose. Note that the timer [TEVLV] should
be lower than the dead timers [TSPAR1].
Note that the 'CB1_94TT' and 'CB2_94TT' signals are unconditionally generated when a
single phase tripping occurs in TPAR.
Initiation
ARC1-S1 IN-PROG
ARC2-S1 IN-PROG
ARC1 IN-PROG OR
Start
TRIP-1PH
TRIP-ANYPH
TRIP-MPH
ARC1-MODE=SPAR
ARC1-MODE=TPAR
ARC1-MODE=S&T
ARC1-MODE=SPAR+S&T
≥1
ARC2-MODE=SPAR
ARC2-MODE=TPAR
ARC2-MODE=S&T
ARC2-MODE=SPAR+S&T
≥1
Figure 2.34-17 Condition logic
- 452 -
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8200001B6A
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TEVLV
t 0 &
&
0.01-300.00s
6F2S1914 (0.49)
SPAR
ARC1_SPAR_COND
ARC2_SPAR_COND
TPAR
ARC1_TPAR_COND
≥1
ARC2_TPAR_COND
&
≥1
To TRC
CB1_94TT
&
CB2_94TT
MPH-TRIP
IN SPAR1 ARC1 FT CB1_94TT
MPH-TRIP
IN SPAR2 ARC2 FT CB2_94TT
EVOLV_FAULT
ARC1 FT CB1_94TT
TIME OVER1
EVOLV_FAULT
TIME OVER2
CB2_94TT
ARC2 FT
GRL200 (Soft 033 & 037)