In the field of household appliances, such as air conditioners, washing machines, refrigerators and other products, permanent magnet synchronous motors or permanent magnet DC motors are gradually replacing the original asynchronous motors. As the price of permanent magnet materials goes down, the co... read more
The direction of the conductor's force is determined by the left-hand rule. This pair of electromagnetic forces forms a moment that acts on the armature. This moment is called electromagnetic torque in a rotating electrical machine. The direction of the torque is counterclockwise in an attempt to ma... read more
How to choose household mixers and cooking machines? Many friends do not know where to start when buying cooking machines and mixers. What are the factors that affect their performance, and how to choose, bother some friends. Here are a few important items that should be paid attention to, and I hop... read more
1. Caused by unbalanced transmission wheels 2. The iron core bracket is loose, and the rotor is not tightly bound, resulting in partial imbalance 3. The linkage shaft is partially misaligned, does not coincide, and the center is not correct. This reason is mainly caused by improper installation. 4. ... read more
1. For new or long-term out-of-service motors, check the insulation resistance between the windings and the windings to the ground before use. Usually use 500V insulation resistance meter for motors below 500V; use 1000V insulation resistance meter for motors with 500-1000V; use 2500V insulation res... read more