Toshiba GR-200 Series Instruction Manual page 631

As mentioned above, the fault duration time measured by IED is shorter than the actual fault
duration time, because it does not include relay operating time, BO contact closing time and
CB opening time.
For this reason, LCD screen shall display a fault duration time, which is complemented with
relay operating time, BO contact closing time and CB opening time. The complementing time
is configurable with setting [Adjustment_Time] in Equation (8.1-1).
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Fault duration time
= Fault⁡duration⁡⁡time
Table 8.1-2 Setting to enable MOT operation
Setting items
Adjustment_Time
F.Durat_Time
Table 8.1-3 Trigger of start and stop of measuring
MES_MV (Function ID: 710081)
Element ID Name
800001EBB0 FDT_PU_Trig
800001EBB1 FDT_DO_Trig
Demand value during fault duration time
The below demand values, which are going to be monitored through the fault duration time,
will be recorded:
-Maximum value in Ia, Ib and Ic
-Maximum value in Ie and Ise
-Maximum and Minimum values in Vab, Vbc and Vca
-Minimum value in Va, Vb and Vc
-Maximum value in Ve
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Range Unit
Adjustment time to approximate the actual fault
0 - 200 ms
duration time
0.01 - 300.00 s Time to reset measuring for the fault duration time
Description
Start signal of measuring for the fault duration time
Stop signal of measuring for the fault duration time
- 612 -
+ Setting⁡ [ Adustment_Time ]
Contents
6F2T0200 (0.15)
(8.1-1)
Default
0
300.00
GRE200 (1,2)