NTC-07.31 “Frequency Converter – Induction Motor”

The stand consists of two main units:

• A main unit that contains the electrical equipment, electronic boards, and front panel;
• A machine unit, which includes a squirrel-cage induction motor, a separately excited DC motor, and an optical speed sensor with rotation direction detection.

The main unit contains:

• A frequency converter, which generates a three-phase AC supply with variable frequency and voltage;
• A pulse-width modulation (PWM) converter for supplying the armature and field windings of the DC motor;
• A measurement system for displaying and recording electrical and mechanical parameters (current, voltage, electric power, speed, and torque);
• A position controller for analyzing the performance of the induction motor in servo drive mode.

The front panel includes:

• Frequency converter controls;
• DC converter controls;
• Controls for start-up and regulation equipment;
• Indicators for the measurement system;
• USB port for PC connection.

The stand comes with:

• Software;
• A set of teaching materials and technical documentation intended for the teaching staff.