Regarding electrical insulation shaking
Thread Content
When using a soft starter or inverter, it is necessary to check the insulation of the motor and power cables; one must disconnect the power cables from the soft starter or inverter, right? Please give some guidance, thanks
It is necessary to disconnect this in order to prevent the semiconductor components in the soft starter or frequency converter from being damaged during insulation testing.
The connection cable of the motor must be disconnected; otherwise, the thyristors or IGBTs will be damaged.
It must be disconnected, not only to protect the soft starter or inverter but also to reduce measurement errors and improve measurement accuracy.