NTC-07.31 “Frequency converter - asynchronous motor”

Structurally, the training system is made in a desktop unit and consists of two parts:

the case with installed electric equipment and front panel;
electric machine unit, containing of two electric machines: asynchronous electric motor with squirrel-cage rotor, DC electric motor. The speed optical sensor is installed on the electric machine unit.

The case consists of:

frequency converter is used to form three-phase AC circuit of regulated frequency and voltage;
pulse-width converter to supply armature windings and motor DC motor excitation.
measurement system is used to change and display the investigated motor parameters (current, voltage, electric power, speed, moment).

The front panel includes:

The training system is supplied with:

software is used to output in real time mode, to save the parameters in PC memory, measured by installed digital equipment, to form records with diagrams construction;
a set of teaching materials and technical documentation intended for the teaching staff.

Experiments provided

1. Study of the frequency converter:

2. Programming and tuning frequency converter from PC:

3. Study of the open-loop system “frequency converter – asynchronous motor”:

Power supply		~50 Hz 220 V 1P+N+PE (single-phase mains with protective conductor 220V, 50Hz)
Power consumption, kW, max		0,3
Overall dimensions, max
	width, mm	800
	height, mm	600
	depth, mm	450
Weight, kg, max		13