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Toshiba GR-200-5 Instruction Manual page 356

Multi functional protection ied

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Scheme logic
The scheme logic of the locked rotor protection is illustrated in Figure 2.28-14. The Mot-
LKRT operation can be blocked when a signal is generated at PLC connection point
[Mot-LKRT_BLOCK].
8000311C23
Mot-LKRT
On
Mot-LKRT-EN
MotSt-Irreg-Op
840000EBB6
Mot-LKRT_BLOCK
Figure 2.28-14 Scheme logic of the locked rotor protection
Table 2.28-10 Settings corresponded for the locked rotor protection
Setting items
Range
Mot-LKRT-EN
Off / On
Mot-LKRT
50 - 1000
Mot-LKRT-IS
0.10 - 100.00
T-Mot-LKRT
1 - 300
8000001B72
&
&
1
Unit
-
Locked rotor protection enable
Thermal level multiplier
%
(Rate of [Mot-THM] setting)
A
Motor start-up current
s
Allowable locked rotor time
- 336 -
6F2T0207 (0.01)
Mot-LKRT-TRIP
Contents
Default
Off
200
7.50
120
GRE200 (5,6)

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Gr-200 seriesGr-200-6