sand making machine12254

Description: Counter-type sand making machine motor overspeed test
Group News
12/09/2018  

The quality of the motor is also related to whether the counter-type sand making machine can operate stably. Through the over-speed test, it is possible to detect whether the counter-type sand making machine motor has passed the quality. In the test, the quality of the cable can be checked. The overspeed test of the rectifier assembly and the quality of the winding cable is done according to the national standard 183-41, Section 96. When the load is not loaded, the speed is increased to over 20% of the rated value for 2 minutes.

Counter-type sand making machine motor test specific steps
National Standard 183-41 states that this test must be performed only when repairing the rotating part of the motor. For DC motors, the motor can be easily adjusted to increase the speed of the motor during no-load operation. For induction motors and motors with series windings, increasing the speed can be done by increasing the frequency of the clicked feed current, or by using other motors to drive the motor.

In the design of the sand making equipment, the counter-type sand making machine, the vsi sand making machine, the pcl sand making machine and the hammer crushing machine all crush the rock through the impact force of the hammer head or the rotor to achieve the purpose of sand making. Therefore, different types of sand making machine equipment are in the same working principle, and the quality detecting method of the motor is the same.

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