The inspection of the stabilized voltage power supply of the laser cutting machine is mainly to observe the compensation transformer to see whether the temperature rise of the voltage regulating transformer is normal, whether there are abnormal phenomena such as overheating and coil discoloration. Whether the contact of the carbon brush is maintained well, and whether the input and output voltage are normal, whether there is overload, etc.
In order to carry out better maintenance, it is generally necessary to remove the dust and dirt from all parts of the pressurizer of the metal laser cutting machine every three months, check whether the chain drive system works normally, add oil to the sprocket, adjust the tightness of the chain, check whether the carbon brush holder is inclined or stuck, and adjust it if found.
In addition, check whether the electrical contacts of the metal laser cutting machine are damaged, and if so, replace or repair them in time: check whether the column voltage regulating transformer operates flexibly, whether the carbon brush is intact, and replace the damaged or severely worn carbon brush in time. If there are burns or carbon brush powder on the contact surface of the coil, polish it with No. 0 fine sand in time and remove the dust.
Voltage stabilizer protection function of laser cutting machine:
·The overvoltage output exceeds the rated voltage by 10% (adjustable), and the output power is cut off after a delay of 3-5 seconds
·The undervoltage output is -15% lower than the rated voltage (adjustable), and the output power is cut off after a delay of 3-5 seconds
·Delay 2 seconds to cut off the output power
·When the overcurrent exceeds the rated output current, the output power supply will be cut off with a delay of 3-5 seconds
·Short circuit when the load equipment is short circuited, cut off the output power supply
·When there is an error in the reverse three-phase electrical phase sequence, the machine alarms and cuts off the output power supply
·The machine will alarm and cut off the output power supply in case of phase failure