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TOSHIBA
The rated temperature rise
rated current (full laod current).
manufacturer as test data.
This relay requires setting of the motor's heating time constant and the cooling
time constant. These values are also supplied as the motor data.
not shown. request them from the motor manufacturer.
As a reference. the standard values of Toshiba motors are shown in Table 6.
Frame
This value is usually submitted by a motor
Table 6 Heating Time Constant of Motor
(Toshiba Standard Values)
Motor kind
Totally
enclosed
enclosed outer fan 1 TR
outer fan
2 poles
355
400
4
450-630
710
Time
constant
(minute)
TD
I
4 pole
or more
30
355
45
400-630
60
90
120
When they are
I
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