1. Introduction
This experimental device can provide DC and AC power supply, and output the protection of fuses, which can provide DC 5V/1.2A, AC 6V/ 1.5A voltage. Configure the moving coil dc 1A and ac 1A pointer table to complete a variety of measurements. Through the experiment, and master the principle and control mode, the corresponding knowledge and skills, suits, higher vocational colleges, secondary vocational schools and vocational school related professional teaching and skills training examination. 
2.The equipment contained the following components 
1) Slide rheostat (excitation resistance) - 500 Ω
2) Slide rheostat resistance (start) - 10 Ω
3) Shunt winding
4) Series winding
5) Armature winding
6) Motor voltage --DC220V.
7) Motor power --1KW.