Permanent magnet brushless motor is a little electrical engineer

As is known to all, the motor in our life are everywhere: from home appliances to the industry; Used cars to aviation, motor can be said to be the household appliance, apparatus, the core perkins diesel generator component of traffic construction machinery and industrial equipment. For a long time, high energy consumption, low efficiency, material consumption big asynchronous motor and excitation generator of traditional motor has been the main force that ACTS as a way of energy conversion. (see electrical engineer) pointed out that the permanent magnet brushless dc motor (BLDC) motors and permanent magnet brushless generator is in recent years, with the rapid development of electronic technology and a new type of motor. Brushless motor with a set of electronic commutation device to replace the mechanical brush motor reversing device, retained the has a broad and smooth brush ac motor electric 65kw dc motor performance of speed adjustment, at the same time there to overcome the mechanical commutator brush dc motor with a series of shortcomings, so is widely used in various fields, such as: computer floppy disk drive, the robot of artificial intelligence, CD machine, air conditioner, electric vehicles and aviation, spaceflight, shipping, etc. Except brushless motor brushless dc motor have advantages, also has the characteristic such as high energy density, high efficiency. At the same time, modern power electronic technology, the development of permanent magnetic materials and amorphous materials and provides convenient conditions for the development of brushless motor, drive the permanent magnet brushless motor in high performance, low power consumption, high power density, thus has a strong vitality and development prospects. Traditional industry cost pressure, the cost is not high www.facebook.com/guohong.trading but better performance of motor for technology promotion, increasing product competitiveness. For high-end permanent magnet brushless motor in the traditional industry overall upgrade carve out an innovative way.

The connection method of three phase asynchronous motor

Three-phase asynchronous motor in the process of production, a lot of details to our attention. Including the working process of the three-phase asynchronous motor wiring and step has received the attention, now online side have a lot of articles on this subject. Now let's detailed discuss the three-phase asynchronous motor in the process of line to use the right way. When we are in the connection of the three-phase ac asynchronous motor, the connection method is connected into a triangular or the decision of the star can't out of thin air and calm, must operate according to the provisions of the manufacturer, as to the rules, we can very clear on the motor nameplate. And Settings, at the end of the three stator windings are displayed in the factory when the factory set in advance, we are in the process of operation will not appear upside down at the end of the first operation. Three-phase asynchronous motor wiring, main is to consider three of the motor stator winding of each group has two thread derivation, the two leads to the thread end is called the head end, while the other end of the end of the call. In the process of wiring, three sets of components of six wiring head can connect the three-phase winding become the shape of a star or the shape of a triangle. But y connection is the main three wire winding at the end of the parallel. The triangle; Connection method is mainly the first end of the first phase in the three-phase winding is connected with the end of motor fan the third water pump phase, after the connection access a phase power; And then the second head end connected with the end of the first, and then connected to a phase power; Finally, will the rest of the head end of the end of the second and the third to connect, completes the connection after connected to a power supply operation.