Direct Starter (DOL)

Reliable Direct-On-Line Motor Starting for Medium Voltage Applications

The Direct Starter (DOL) from IGEL Electric provides a simple, reliable, and cost-effective solution for starting medium voltage motors in applications where full-voltage starting is acceptable. Designed for industrial environments requiring dependable motor control and comprehensive protection, the Direct Starter combines proven switching technology with advanced monitoring and protection functions.

Integrated within IGEL Electric’s modular motor control systems and switchgear solutions, the Direct Starter delivers reliable operation while supporting long-term system performance and equipment protection.

Designed for Robust Industrial Operation

For applications where the electrical network can accommodate motor inrush current and the driven equipment can tolerate full starting torque, direct-on-line starting offers a straightforward and effective motor starting solution.

The Direct Starter enables motors to start directly from the power supply, providing immediate acceleration and dependable operation for a wide range of industrial applications.

Comprehensive Motor Protection

Protecting critical motor assets is essential for maintaining operational reliability. The Direct Starter incorporates a range of protection functions designed to safeguard motors, connected equipment, and electrical systems from abnormal operating conditions.

Protection features include:

• Short-circuit protection
• Ground fault protection
• Phase loss monitoring
• Phase sequence monitoring
• Asymmetrical load detection
• Undercurrent protection
• Under-voltage protection
• Over-voltage protection
• Under-frequency protection
• Over-frequency protection
• External fault monitoring
• PT100 temperature protection

These integrated functions help improve equipment reliability and reduce the risk of unexpected downtime.

Monitoring and Diagnostics

The Direct Starter continuously monitors key operating parameters to provide valuable insight into motor and system performance. Early detection of abnormal operating conditions supports preventive maintenance and helps improve overall equipment availability.

Combined with IGEL Electric protection and monitoring technologies, the system provides a complete motor control solution for critical industrial applications.

Flexible Integration into Motor Control Systems

The Direct Starter can be integrated into custom motor control and switchgear systems to meet specific project requirements. Its modular design supports seamless integration with protection relays, monitoring systems, communication interfaces, and other control equipment.

This flexibility allows the system to be tailored to the operational needs of each installation.

Dependable Performance for Industrial Applications

Suitable for pumps, fans, compressors, conveyors, and other motor-driven equipment, the Direct Starter provides a practical solution where soft starting is not required.

By combining reliable motor starting with advanced protection and monitoring capabilities, IGEL Electric delivers a robust motor control solution for demanding industrial environments.