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Toshiba GR-200 Series Instruction Manual page 343

Multi functional protection ied
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The operation in this irregular mode is further divided into two modes ((i)-2○
2○
) depending on whether the motor current exceeds 150% of [Mot-Ir] or falls below,
2
when motor status judgement function is turned on.
(iv)-2○
1
Ir]
In the case which the motor current value falls below 150% of [Mot-Ir] before the
motor start-up time elapses, the motor status is changed to "Start-up" when the
motor start-up time elapses. Figure 2.28-4.a illustrates the motor status
transition in this case.
In the case which the motor current value does not fall below 150% of [Mot-Ir]
even after the motor start-up time elapses, the motor status is changed to "Start-
up" when the motor current value falls below 150% of [Mot-Ir]. Figure 2.28-4.b
illustrates the motor status transition in this case.
Motor current
Motor rated current
× 1.5
Overload current
Motor rated current
Motor rated current
× 0.05
Motor current
Motor rated current
× 1.5
Overload current
Motor rated current
Motor rated current
× 0.05
Figure 2.28-4 Motor status transitions in irregular mode-2A
Irregular mode-2A: In case of the motor current exceeds 150% of [Mot-
Motor protection started
a. Motor status transition in the first case
Motor protection started
b. Motor status transition in the second case
Motor start-up time
Start-up
Motor start-up time
Start-up
- 324 -
6F2T0200 (0.15)
1
Running
Stop
Running
Stop
GRE200 (1,2)
or (i)-
Time
Time

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