Pulse transformer is generally used in the switching power supply, its role is actually the same as the ordinary transformer, is to AC voltage transformer, the difference is that the ordinary transformer transformer is a sine wave and the pulse transformer transformer is a certain or adjustable duty cycle square wave (can be understood as a pulse signal), So what are the characteristics of the performance of automatic cnc pipe end forming machines?

performance of automatic cnc pipe end forming machines The secondary side of the pulse transformer is connected to the thyristor and the primary side is connected to the main control board. The resistance of the primary side is about 50Ω measured by a multimeter. The continuous current diode is generally not easy to fail, and the multimeter diode is used to block the other end during inspection. The junction voltage drop is about 500mV when the multimeter is positive, and the reverse voltage is blocked.

Inverter: The inverter consists of four fast thyristors and four pulse transformers, which can be checked as described above. (4) Transformer: Each winding of each transformer should be through, the general resistance of the original side is about dozens of ohms, and the next pole is several ohms. It should be noted that the primary side of the medium-frequency voltage transformer is in parallel with the load, so its resistance value is zero. Capacitors: electric heating capacitors in parallel with the load may be broken down, capacitors are generally installed in the capacitor rack, check should first determine the group of the broken capacitor. Disconnect the connection point between the bus bar of each group of capacitors and the main bus bar, and measure the resistance between the two bus bars of each group of capacitors, which should be infinite in normal times. After confirming the bad group, disconnect the soft copper sheet of each electric heating capacitor led to the bus, and check each capacitor to find the broken capacitor.

Each electric heating capacitor is composed of four cores, the shell is a pole, the other pole is led to the end cover through four insulators, generally only one core will be broken down, jump the lead on the insulator, this capacitor can continue to use, its capacity is 3/4 of the original. Another fault of capacitors is oil leakage, which generally does not affect the use, but pay attention to fire prevention.

performance of automatic cnc pipe end forming machines https://www.john-sheng.com/CNC-Tube-End-forming