Xi'an Lite simo Motor: JR Series Wound Rotor Three-Phase Asynchronous Motor

Model Explanation

For example, JR115-6:

• JR: Indicates a wound rotor motor.

• 11: Frame size.

• 5: Core length code.

• 6: Number of poles.

The JR series motors are available in two versions:

1. With brush lifting and short-circuiting devices.

2. Without brush lifting and short-circuiting devices.

Motor Overview

The J series medium-sized motors are designed to drive various types of machinery, including:

• Fans,

• Compressors,

• Pumps,

• Crushers,

• Ball mills,

• Cutting machine tools,

• Transport machinery, and other equipment.

They are suitable for use in:

• Coal mines,

• Machinery industries,

• Power plants, and

• Various industrial and mining enterprises as prime movers.

• The JR series is a wound rotor three-phase asynchronous motor.

• It complies with the technical conditions specified in the JB564-64 standards.

Starting Characteristics

• JS series motors:

• Allow full-voltage direct starting.

• Initial starting torque and current ratios to rated values are shown in Table 3.

• If full-voltage starting is restricted by the power grid, reduced-voltage starting can be used. However, the starting torque will decrease proportionally to the square of the starting voltage.

• JR series motors:

• During startup, a starting resistor must be connected to the rotor circuit.

• Direct short-circuiting of the rotor windings is not permitted during startup.