Mine Winder DC Drives

Duration: 5 Days

Course code : MWDCD-1

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Who should attend:
Winder electricians, Winder Technicians, Engineers, Foremen

This course is intended to give the winder electrician / technician and engineer an overview of the workings of a DC motor and drive system as found on mine winders. They will learn how a DC motor behaves in terms of current and voltage during the typical wind. The DC drive basics are covered including how thyristors work and how to test thyristors. General drive principles and fault diagnosis as well as maintenance is covered.

Course curriculum

Introduction to Mechanics

Force, Torque, Speed, Acceleration, Inertia, Work, Power

DC Motor Concepts

Magnetic Fields, EMF, Armature Field, Commutation

DC Motor Ratings

Armature speed, Volts and Amps
Field Volts and Amps
Economizing
Insulation
Earthing

Torque and Speed Relationship on Winders

DC Drive System

Thyristors
6 pulse rectification
12 pulse rectification
Gate Drives
Basic measurements
Basic faultfinding
Thyristor tests

Practical Application and Assessment

Course Dates:

4 - 8 Sept 2023

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