Product Details

Brief Introduction

Engineered to eliminate mechanical shock during startup, this soft starter liquid rotor starter progressively regulates voltage through phase-controlled thyristor ramping, delivering smooth torque buildup without frequency conversion.

 

Core Starting Technologies:

Controlled Current Ramp: Limits inrush currents to 6-7 times below direct-start overload levels, preventing shaft torsion failures and mechanical stress.

Thyristor Voltage Modulation: Gradual conduction angle adjustment enables stepless voltage elevation from zero to rated supply, eliminating torque spikes.

Cost-Efficient Simplicity: Pure voltage regulation (non-frequency conversion) ensures lower complexity and maintenance costs versus VFD alternatives.

High/Low Voltage Adaptability: Standardized thyristor stacks support both MV/LV applications of liquid rotor starter with unified control logic.

 

Critical implementations include:
• Pre-programmed torque curves for centrifugal pumps, conveyors, and compressors
• Bypass contactors engaging after run-up completion to minimize heat dissipation
• Insulated gate drivers with snubber circuits suppressing voltage transients
• Thermal-derating protection during extended starts

 

The CMC-LX 160-3 liquid rotor starter unit executes:

Adjustable current limiting via rotary dial interface

Real-time monitoring terminals for voltage/current validation

DIN-rail compatible control modules reducing cabinet footprint

NEMA 12 enclosure guarding against dust ingress

Validated for 380-690V systems, it extends motor lifespan through shock-free acceleration while eliminating gearbox/bearing damage common in uncontrolled starts. Excludes frequency manipulation capabilities for dedicated voltage-regulation applications.

 

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Mounting

 

 

 

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Production Details

 

Frame

• Compact and robust iron casting frame

• Universal IEC and NEMA installation dimensions 

• Customizable

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Stator

• 99.9% pure copper winding for stator to ensure the output power and efficiency

• Excellent insulation system with 5 more processing flows

• All the windings are fitted in by handwork to ensure all slots are full and avoid any winding flaw.

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Rotor

• Aluminum casting rotor with silicon steel rotor core to assure induction efficiency

• Precisely machined shafts with good capacity of strength and toughness

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Testing

• All motors must pass the piece testing before painting and packaging

• Type tests will be regularly performed for each series, more often for new developed series and variants.

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Package and delivery

• All motors will be packaged well before delivery

• Plastic cover inside, vacuum tin foil outer and then solid wood box

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Applications

This series of motor is commonly used to drive water pumps, compressors, conveyors and other transmission machinery in different areas.

 

Chemistry

Power Station

Cement

Pump