How many times of starting current and rated current are there when the motor is star delta connected?

How many times of starting current and rated current are there when the motor is star delta connected?

In general, the starting current of motor is 7 times of the rated current. The current ratio of star delta connection is 3 times of the root. Then the ratio of starting current and rated current of star delta connection is 7 / root 3, about 4 times

What is the difference between starting current and rated current of motor
In order to prevent the motor starting current from burning the fuse, the fuse can not be selected according to the rated current of the motor, but should be selected according to the starting current

The instantaneous current of the starting current type is relatively large, which is much larger than the normal working current, that is, the rated current. So the fuse should be larger. Generally, when the current is 1a, you may need to use about 3a. Basically, it should be 1 to 2 times higher. Select according to the actual test
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