Explanation
Motors, and so on. device, observing the current in each phase enable the operation of the device in the desired power range. They draw current devices outside the desired range, the system is de-energized, it prevented the device fails. Current protection relay system that is connected is designed with the aim to protect from excessive and low current. Working current range can be entered. At the same time only “overcurrent protection” or just “low flow protection”, also can be used. The first development in the current engine is high. It has a start delay to prevent false over-current faults that may occur because of that.