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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Reliable Motor Starting for Large-Scale Salt Refining
Challenge
A large salt refining facility required a motor starting solution for four 10 kV, 5.9 MW compressors as part of their green ecological refining expansion project. The system needed to:
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Integrate with additional circuit breaker cabinets due to higher current
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Use PLC-based control logic for smooth coordination
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Maintain less than 10% voltage drop during compressor start
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Compensate for missing thermal and starting data from the motor manufacturer
Solution
Four medium voltage soft starter cabinets (HRVS-DN) were designed and supplied, each with fully integrated PLC control. The cabinets underwent complete factory acceptance testing and on-site testing with all breaker cabinets to verify performance before commissioning.
Results
| Key Objective | Outcome |
| Smooth Start-Up | Adjusted current limit to 420% FLA, achieving a successful 27-second start |
| Voltage Control | Maintained voltage drop within 11%, optimized further by raising supply to 10.4 kV |
| System Integration | PLC logic provided reliable coordination with additional breaker cabinets |
| Operator Satisfaction | Quiet and smooth starting, more logical control and improved performance |
Outcome
The solution achieved stable, repeatable starts and met all project requirements. Operators praised the improved control, reliability, and quiet operation — building confidence in the system’s ability to run continuously without failure.
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HRVS-DN
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