Toshiba GR200 Series - (vii) Condition logic - setting (TEVLV)

6F2S1914 (0.49)
GRL200 (Soft 033 & 037)
- 452 -
(vii) Condition logic – setting (TEVLV)
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.
1
&
TRIP-ANYPH
TRIP-1PH
TRIP-MPH
Initiation
ARC1-S1 IN-PROG
ARC1-MODE=S&T
ARC1-MODE=SPAR+S&T
ARC1-MODE input
Start
&
&
&
&
&
ARC1_SPAR_COND
ARC1_TPAR_COND
SPAR
TPAR
1
&
ARC2-S1 IN-PROG
&
&
&
&
&
ARC2_SPAR_COND
ARC2_TPAR_COND
ARC1-MODE=SPAR
ARC1-MODE=TPAR
&
CB1_94TT
To TRC
MPH-TRIP
IN SPAR1
ARC1-MODE
SPAR
TPAR
SPAR&TPAR
1
ARC2-MODE=S&T
ARC2-MODE=SPAR+S&T
ARC2-MODE=SPAR
ARC2-MODE=TPAR
&
CB2_94TT
&
CB1_94TT
t 0
0.01-300.00s
TEVLV
EVOLV_FAULT
TIME OVER1
8200001B6A
CB2_94TT
&
&
EVOLV_FAULT
TIME OVER2
ARC1 IN-PROG OR
&
&
OFF
FT
MPAR
ORIGINAL
ARC2-MODE input
ARC2-MODE
SPAR
TPAR
SPAR&TPAR
1
OFF
FT
MPAR
ORIGINAL
CB1_94TT
CB2_94TT
ARC1 FT
MPH-TRIP
IN SPAR2
ARC2 FT
ARC1 FT
ARC2 FT
Figure 2.34-17 Condition logic
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.