Features of teaching equipment
Teaching equipment plays an increasingly important role in teaching. Advanced teaching equipment can meet the teaching needs of colleges and universities, keep up with the pace of teaching, and greatly improve teaching efficiency. Therefore, students' understanding of knowledge points is avoided, and traditional teaching methods are avoided. It is tedious to achieve the real effect through the simulation effect of the device. Made a significant contribution to the modern teaching cause.
Teaching equipment is also called teaching instrument. Since the introduction of economic and practical teaching equipment, teaching laboratory equipment has quickly occupied a major position. The biggest difference from laboratory equipment is that it eliminates the need for mechanical commutators for teaching equipment. It has many advantages over teaching instruments:
(I) The single compatible signal of teaching laboratory equipment is several times that of laboratory equipment.
(2) The working voltage of the teaching laboratory equipment can be proud to 6-10kV, while the DC motor can only achieve a maximum of about 000v.
(3) The teaching laboratory equipment can work for several days continuously. Due to the constraint of the equipment's heat dissipation, the teaching equipment's fixed speed decreases with the increase of the rated power of the motor, and the general working time is only over 5 days.
(4) The volume of the teaching laboratory equipment is smaller than that of the vertical flow motor.
However, in photovoltaic inverters and high-bamboo transmission leading cities, DC transmission is almost entirely used for a long time, and the above advantages of teaching instruments cannot be brought into play. Because teaching equipment can not meet the high requirements in terms of starting and creating performance, forward and reverse, speed and degree of speed and range.
With the development of the technology of Fantun Lidian, especially the computer-controlled turning technology and the application of modern control theory since the 1970s, it has further created favorable conditions for the development of teaching instruments. Teaching equipment's application of two-speed, variable-gear speed regulation, non-reversing sign motor, and side-control technology has gradually made teaching instruments have a wide speed range, stable speed accuracy, fast dynamic response, and four-quadrant operation. Technical performance. The speed of its temple and other aspects have been comparable to DC drive.
方法 The method of moisturizing the AC motor mainly includes: First, change the number of stator pole pairs. Second, change the stator voltage level. Third, using a commutator-free motor.
Teaching equipment is also called teaching instrument. Since the introduction of economic and practical teaching equipment, teaching laboratory equipment has quickly occupied a major position. The biggest difference from laboratory equipment is that it eliminates the need for mechanical commutators for teaching equipment. It has many advantages over teaching instruments:
(I) The single compatible signal of teaching laboratory equipment is several times that of laboratory equipment.
(2) The working voltage of the teaching laboratory equipment can be proud to 6-10kV, while the DC motor can only achieve a maximum of about 000v.
(3) The teaching laboratory equipment can work for several days continuously. Due to the constraint of the equipment's heat dissipation, the teaching equipment's fixed speed decreases with the increase of the rated power of the motor, and the general working time is only over 5 days.
(4) The volume of the teaching laboratory equipment is smaller than that of the vertical flow motor.
However, in photovoltaic inverters and high-bamboo transmission leading cities, DC transmission is almost entirely used for a long time, and the above advantages of teaching instruments cannot be brought into play. Because teaching equipment can not meet the high requirements in terms of starting and creating performance, forward and reverse, speed and degree of speed and range.
With the development of the technology of Fantun Lidian, especially the computer-controlled turning technology and the application of modern control theory since the 1970s, it has further created favorable conditions for the development of teaching instruments. Teaching equipment's application of two-speed, variable-gear speed regulation, non-reversing sign motor, and side-control technology has gradually made teaching instruments have a wide speed range, stable speed accuracy, fast dynamic response, and four-quadrant operation. Technical performance. The speed of its temple and other aspects have been comparable to DC drive.
方法 The method of moisturizing the AC motor mainly includes: First, change the number of stator pole pairs. Second, change the stator voltage level. Third, using a commutator-free motor.