Products

Oil-Immersed Slip Ring Motor Starter (Type II OSR) with OCB

Our Type II OSR Starters are designed specifically for Slip Ring Motors above 60 HP and are equipped with Oil Circuit Breakers (OCB) for enhanced stator control and protection. These starters provide reliable motor startup, efficient operation, and additional safety features tailored for higher-capacity motors.

Features:

Motor Range:

• Suitable for motors above 60 HP.

Oil Circuit Breaker (OCB):

• Integrated oil circuit breakers of appropriate ratings for reliable stator circuit control.
• Ensures safe and efficient switching during motor operation.

Enhanced Motor Protection:

• Electrical interlock between stator and rotor circuits to prevent improper operation.
• Overload and undervoltage protection via calibrated oil dashpot relays.

High-Quality Rotor Resistance:

• Rotor resistances made of premium-grade wires wound on ceramic tubes for durability and heat dissipation.

Durable Contacts:

• Stator circuit contacts made of electrolytic copper extrusions, silver-plated for corrosion resistance and longevity.
• Self-aligning and easily replaceable contact tips.

Time Lag Device:

• Adjustable oil dashpot time lag with standard calibration of 45 to 60 seconds for precise motor control.

Foolproof Design:

• Starter operation begins only when all rotor resistances are in the circuit.
• External push buttons for convenient stator circuit control during startup.

Maintenance-Friendly Construction:

• Oil level indicator on the tank for easy monitoring and refilling.
• Removable contact tips and replaceable resistance sets simplify maintenance.