3-PHASE AC SQUIRREL CAGE INDUCTION MOTOR (DAHLANDER TYPE):

Introduction:

• With the availability of 3Phase power becoming common, the use of 3Phase AC Squirrel cage motor became very common & today it holds 90% of the total market share. The simplicity in operation with the 3phase voltages & immediate torque made it a very common motor. Dahlander motor is just an extension with the flexibility that from 1 motor you can get 2 different fixed rpm, this is basically by changing the coil connections inside the motor.
• This Model is the Industrial/Educational model suitable for demonstrating to students the complete know of the Basics, Components, Starting methods, Wear & Tear & Maintenance of these motors packaged in small rating.
• Students can make connections of their own with the help of the terminations provided for study of features viz Starting methods, Speed control, Speed-Torque, Effect of Phase angle, Study of Cogging/Crawling, Effects of Single phasing, Effect of voltage imbalance operation, Blocked rotor test

Technical Specifications:

• Power ratings available     : 350W / 750W / 1KW /2 KW / 3KW/ 5KW
• Voltage Input                   : 440V AC 50 Hz
• RPM                                 : 2pole & 4pole, (1400/2880), other options are (6pole/4pole)
• Single / Double shaft extension, TEFC, IP44, IC01, B3, Class-B, S1, Casting body.

LIST OF EXPERIMENTS POSSIBLE

• Starting by DOL Starter
• Starting by Star-Delta Starter
• Starting by reduced voltage starter.
• Speed Control by VVVF method
• Load test & No load test of machine
• Speed-Torque Analysis
• Voltage-Speed Analysis
• Speed reversal
• Efficiency Analysis
• Blocked rotor test
• Cold Resistance & Hot Resistance
• Motor Operation parameters
• Basic Overhauling Know how.