Applications

Slip ring is best suitable for applications like driving as it requires high starting torque value. The most common applications can be seen in industrial drives that works under high power and torque like:

• Curving Machines
• Generators
• Pumps
• Line shafts/contour
• Elevators
• Refineries

Advantages

Following are significant advantages of the wound rotor:

• High capacity of overloading
• Use of lesser current as compared to squirrel cage motor
• Maintain a constant speed while running
• High torque value at the start

Disadvantages

Every coin has two coins: Where wound rotor has significant advantages, it also shares some disadvantages on the same platform:

• At light loads, the power factor used is also limited
• As compared to squirrel cage motor, wound motor reflects lesser efficiency and power factor
• Sensitivity is reflected in voltage supply towards fluctuations
• The cost associated with maintenance as well initialization is very high
• While operating the motor under the presence of external resistance in the rotor circuit, the results of regulation of the speed is poorly noticeable

Links of Previous Main Topic:-

• Current Electricity Basic Concepts
• Introduction to Alternating Current
• Introduction Three Phase A C Circuits
• Magnetic Field
• General Aspects
• General Aspects Polyphase Induction Motors
• Classification of A C Motors
• Constructional Details
• Production of Rotating Magnetic Field
• Theory of Operation of an Induction Motor
• Slip
• Frequency of Rotor Current
• Rotor E M F and Rotor Current

Links of Next Electrical Engineering Topics:-

• Squirrel Cage Motors Advantages Disadvantages and Applications
• Wound Rotor or Slip Ring Induction Motors Advantages Disadvantages and Applications
• Comparison of a Squirrel Cage and a Slip Ring or Phase Wound
• Comparison Induction Synchronous Motors
• Highlights in Polyphase Induction Motors
• Single Phase Motors
• Characteristics of D C Generators
• Measuring Instruments
• Power Supply System