Solcon-IGEL is a developer and manufacturer of soft starters, heat control systems, and motor control and protection solutions for heavy industry. Our power electronic technologies are engineered for reliable operation across a wide range of industrial motor applications worldwide.
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DriveStart - Medium-Voltage Soft Starter for Crusher
Motor Ratings:
3300V 2400kW
Reliable Motor Starting on a Weak Power Grid Using an IGBT-Based Medium Voltage Soft Starter
Project Overview
Industrial installations operating on weak power grids often face major challenges when starting large motors. High inertia loads and dynamic torque fluctuations can lead to unstable starting conditions, excessive current draw, and potential system disturbances.
In this application, Solcon-IGEL implemented the DriveStart (SI-DST) IGBT-based medium voltage soft starter to provide a reliable starting solution capable of handling high inertia loads and dynamic mechanical stress during motor acceleration.
Application Challenges
The site presented several significant operational challenges that required advanced motor control technology:
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Weak power grid conditions limiting available starting current
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High inertia load requiring elevated starting torque
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Dynamic load changes during run-up, caused by rotating hammer mechanisms
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Risk of unstable acceleration and excessive current draw
These conditions required a starting solution capable of maintaining stable motor acceleration while minimizing electrical stress on the power network.
Solcon-IGEL Solution
The DriveStart (SI-DST), Solcon-IGEL’s IGBT-based medium voltage soft starter, was selected to address these challenges.
This advanced system provides precise control over motor starting parameters while ensuring stable performance under demanding operating conditions.
Key capabilities of the DriveStart include:
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High starting torque capability
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1.5 to 1.8 × motor nominal torque
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Dynamic load compensation
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Maintains stable acceleration during fluctuating mechanical loads
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Optimized starting current
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Reduces stress on weak electrical grids
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Advanced digital monitoring and control
These features enable reliable motor acceleration even in applications with variable mechanical load behavior.
System Performance
Using the SI-DST soft starter, the motor was successfully started and controlled without operational issues.
The system delivered:
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Smooth and stable motor acceleration
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Reliable performance despite dynamic load variations
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Controlled starting current suitable for weak grid environments
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Continuous monitoring and optimized motor control
The DriveStart’s digital control system ensured accurate response to load changes while maintaining stable operation throughout the entire starting process.
Results
The installation demonstrated the effectiveness of IGBT-based medium voltage soft starter technology in demanding industrial environments.
Key results included:
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Reliable starting under weak power grid conditions
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Stable acceleration of high inertia loads
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Effective management of dynamic mechanical load changes
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Optimized starting current and reduced electrical stress
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Improved operational reliability
This project highlights Solcon-IGEL’s expertise in delivering advanced motor starting solutions for complex industrial applications.
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