Speed ​​regulating motor is widely used in steel, power station, cable, chemical, petroleum, cement, textile, printing and dyeing, papermaking, machinery and other industrial sectors for constant torque or decreasing torque load mechanical stepless speed regulation, especially suitable for flow Pumps and fans are used for variable load to achieve good energy savings. What are the characteristics of the speed control motor? Dalan Motor tells you the characteristics of the speed control motor as follows: 1. Simple structure, stable operation, reliable use and convenient maintenance; 2. Simple wiring, convenient control and low price; with hard mechanical characteristics and good stability; Slip loss, high efficiency; 3, step-level speed regulation, large step difference, can not get smooth speed regulation; 4, direct use of three-phase AC power, less equipment investment; 5, good starting performance, large starting torque, smooth start; 6, no slip loss, high efficiency; 7, control power is small, easy to control, remote control and group control; 8, wide range of speed, no out of control area. The common faults of the speed regulating motor are as follows: 1. The main drive motor is not working properly. The bearing main motor does not operate normally. The slip motor will vibrate violently during operation, causing the bearing to heat up. Disassemble the clutch armature and the pole rotor to check whether the bearing of the motor is seriously lacking in lubricating grease, causing serious wear of the bearing and degrading the running performance of the motor. At this point, you need to replace the damaged bearing and add grease. Under normal circumstances, all parts of this part of the mechanism should be cleaned and refueled to ensure the normal operation of the main drive motor. 2. This situation occurs when the main engine speed drops periodically. Most of them are caused by the failure of the mechanical part. There are more rubber rollers of the speed regulating motor. Each rubber roller supports the moving bomb by bearings. If the bearing at any end of a rubber roller fails, the speed of the main engine may be periodically peaked. In severe cases, the host will be more frustrated, and the bearing should be replaced. 3. After the speed-adjusting motor speeds up, the machine speed gradually drops and even stops. This situation needs to be observed. The current meter pointer in the electrical cabinet of the speed regulating motor needs to be observed. If the indicated current increases sharply, the overload protection device such as the thermal relay of the main motor will inevitably generate a protection action, causing the main motor to disconnect the three-phase power supply and stop the operation. Carefully check the relevant wiring components of the main motor circuit and the AC contactor of the main motor, and whether the wiring parts of the overload protection devices such as all the thermal relays in the electric cabinet of the speed regulating motor are loose, and the contact is bad and the heat is generated. The current is rapidly increased due to poor contact between the wires and components in the circuit, causing a protective shutdown. When the running speed of the speed regulating motor is low, the operating current of the main motor is small, and the situation that the gas speed is gradually decreased or stops is not generated. However, when the speed regulating motor is speeded up, the electric load is large, and the electrical components are The fault will be revealed. In actual work, it can sometimes be seen that the terminal block in the electrical cabinet of the speed regulating motor generates heat due to poor contact of the wires, and even an oxide layer appears at the joint, and the insulation of the wire is deflagrated and discolored. At this time, the operator should immediately take corresponding measures, such as cleaning the contact surface of the terminal and the wire, tightening the terminal screw, removing the burnt wire oxide layer, and replacing the severely damaged terminal block. 4. The noise of the main drive motor is large. In order to adjust the dynamic balance of the slip motor, the two ends of the armature and the pole rotor are respectively equipped with weight devices. If this part of the device is slightly loose, the slip motor will deviate from the original position when moving at high speed. If the fault occurs in the outer surface of the main drive motor, it will cause local friction between the armature and the pole rotor, which will increase the noise. At this time, it is necessary to stop the repair, restore the dynamic balance of the armature and the pole rotor, and re-find the position of the original balance weight and fix it to make the main drive motor run normally. ----- Responsible Editor: Dalan Oil Pump Motor 02- Purchasing Consultant Copyright http:/(Dalan Motor) Reprint, please indicate the source http://news.chinawj.com.cn ZHITONG PIPE VALVE TECHNOLOGY CO.,LTD , https://www.ztpipevalve.com