Three Phase Wound Rotor Induction Motors Manufacturer,Supplier and Exporter in India
Product Code : EL-EELE-11396
Quick Answer: Three Phase Wound Rotor Induction Motors are slip-ring machines for the electrical machines lab, showing how a high starting resistance makes the pull-out torque available at standstill for starting highly inertial loads.
Last updated: October 2026
Key Features
Suited to starting highly inertial loads.
High starting resistance gives pull-out (peak) torque at zero speed.
Starting heat mostly dissipated in the external starting resistance, outside the motor.
With the rotor shorted, the motor runs like a squirrel cage machine.
Brushes and slip rings add complication and maintenance.
About This Product
The key lesson is the comparison with a squirrel cage rotor: the cage machine reaches its pull-out torque only at 80% of synchronous speed, while the wound rotor, with resistance in circuit, can deliver it from standstill. Students also see the trade-off, since brushes and slip rings make the wound rotor more involved to maintain. Educational Lab Equipments can supply and export the Three Phase Wound Rotor Induction Motors to Fiji, Rwanda, Seychelles, Comoros and Tunisia.
Frequently Asked Questions
Why choose a wound rotor over a squirrel cage rotor?
A high starting resistance gives high pull-out torque at zero speed, which suits highly inertial loads, and most of the starting heat is dissipated in the external resistance. A squirrel cage rotor reaches peak torque only at 80% of synchronous speed.
What is the drawback of a wound rotor?
Brushes and slip rings add complication and maintenance compared with the simple squirrel cage rotor.
