Rice brick packaging equipment asynchronous motor can not start the reason what do you know?

Rice brick packaging equipment asynchronous motor can not start the reason what do you know? Vacuum packaging mechanical and electrical motor can not start after connected to the power, generally because of the dragging machinery stuck, starting equipment fault and motor body fault and other reasons, should first check to determine the cause of which.

1, rice brick packaging equipment asynchronous motor can not start the reason what do you know? When the motor of the packaging machinery fails to start, the three-phase voltage of the motor terminal post after power transmission can be measured with a multimeter or a test pen.

2, rice brick packaging equipment asynchronous motor can not start the reason what do you know? If the three-phase voltage is unbalanced or out of phase, the fault occurs on the starting equipment. If the three-phase voltage is balanced, and the packaging electromechanical motor is slow in rotating speed and there is abnormal sound, it may be that the over-loaded motor is still in power, so it should disconnect the power supply and move the motor shaft by hand. If the rotation is flexible and balanced, the load is too heavy. If the rotation is not flexible balance, it is caused by mechanical resistance.

3, rice brick packaging equipment asynchronous motor can not start the reason what do you know? If the three-phase voltage is normal and the motor does not turn, it may be the packaging machine motor body fault or serious mechanical jam. At this point should make the motor and the drive machinery off, respectively disk motor and drive the mechanical shaft, start the motor separately, can determine the fault belongs to which aspect, and then further find the fault point, and make corresponding treatment.

A when the dragging machine is stuck, it shall cooperate with the mechanical maintenance personnel to disassemble and inspect the dragging machine to remove faults and make it rotate flexibly.

B. When the starting equipment fails, it is generally necessary to check the contact conditions of switches, contactors and terminal posts; Check whether the closure of overload protection contact of thermal relay and the adjustment value of working current are appropriate. Check the on and off condition of the melt of the fuse. After analyzing the reason of the melt of the fuse, select the melt again according to the requirements of the starting state of the motor. If the internal wiring of the starting equipment is wrong, the wiring should be corrected according to the schematic diagram.

C. When the vacuum packaging mechanical and electrical machine body fails, check whether the stator winding is grounded or the bearing is damaged. If the winding is grounded or short-circuited between local turns, although the vacuum packaging electromechanical motor can start, it will cause the melt to fuse and stop rotation. When the short circuit is serious, the windings of the vacuum packaging electromechanical motor will soon smoke. If the winding of the vacuum packing machine is broken, the breaking point should be further found and reconnected. To check whether the winding is broken, insulation resistance meter, multimeter or lamp test method can be used for testing.

Check the insulation resistance of the winding to ground with the insulation resistance meter. If the winding is grounded, the insulation resistance meter indicates zero.

Use the short circuit detector to check the stator winding. If there is a short circuit fault and some turns are burnt out, the winding should be rewound.

4, rice brick packaging equipment asynchronous motor can not start the reason what do you know? The bearing should be replaced when the shaft of the fully automatic vacuum packing machine is shifted, sunk, friction between rotor and stator or even stuck due to bearing damage.

5, rice brick packaging equipment asynchronous motor can not start the reason what do you know? If the internal windings of the vacuum packaging machine and the vacuum packaging machine of the bag-feeding machine are connected incorrectly, the heads and tails of the three-phase windings should be checked and determined and correctly connected.

6, rice brick packaging equipment asynchronous motor can not start the reason what do you know? If the vacuum packing electromechanical motor is silent and does not rotate, it is generally the power supply has not been connected. Use the multimeter to check the voltage of the motor at the outlet terminal. If there is no voltage or only one phase of electricity, that is the motor power has not been connected, at this time can be used from the motor end to step by step check, find out the fault and remove; If the voltage has been sent to the motor outlet terminal, and the three-phase basic balance, but the motor is still no sound and does not rotate, indicating that the motor internal broken wire, may be the neutral point is not connected or lead wire broken. According to the winding short circuit inspection method to find out the break point, repair can.

7, rice brick packaging equipment asynchronous motor can not start the reason what do you know? When the vacuum packaging electromechanical motor is connected to the power, it makes a "buzzing" sound but does not turn. Most of them belong to the phase loss of the motor due to the melt failure of the fuse

8, rice brick packaging equipment asynchronous motor can not start the reason what do you know? Power voltage is too low, or delta motor operation into the ya connection, and is starting with load, should check the power voltage and motor wiring.