With the continuous development and progress of the times, the major melting furnace manufacturers are moving towards more energy-saving, more efficient direction of research and development and production equipment. We will always encounter a variety of failures in the operation process, such as: overcurrent. That melting furnace overcurrent is what it means? The following editorial for you to elaborate the content is as follows:

　　Melting furnace overcurrent is mainly due to the current flowing through the machine is too large, more than the rated current. A lot of electronic equipment in order to maintain the control module, will be set when beyond the set current flow, the machine will automatically shut down the power supply, play the purpose: maintenance of machinery and equipment.

　　Gold melting machine overcurrent phenomenon includes the following 3 aspects:

　　First, tripping

　　Restart, a speed up on the trip. This causes: inverter control module destruction, load short-circuit fault, the motor's pitch is too small and the position of the gold melting machine has jammed and so on.

 　　Second, power on the jump

　　Power on the jump, this situation is generally not calibrated, resulting in the emergence of the reasons: bad current detection circuit, bad control module, bad optocoupler circuit.

　　Third, tripping when accelerating

　　Restart, trip during acceleration, the reason: torque compensation (V / F) set higher, acceleration time is set too short, the current limit is set too small.

　　Melting machine overcurrent protection includes: phase break protection, short circuit protection, overload protection (overload protection), etc. Such settings: used to protect the inverter. Thus, the machine occurs overcurrent inverter alarm frequently which is a normal phenomenon.

　　In order to make the melting furnace overcurrent protection device to play a better protective role, we should reasonably select the rated current of the fuse, but also select and adjust the action value of the relay.