Our Thyristor-Based Medium Voltage Soft Starter is an advanced, electronic, and intelligent solid-state motor starting solution designed for precise control of AC motors across a wide range of industrial applications. It offers multiple motor acceleration methods and can be programmed to match the specific requirements of virtually any motor-load combination.

Built using high-power thyristors (SCRs) in series as the primary switching components, the system regulates motor voltage by controlling the firing angle of the thyristors, enabling smooth and controlled motor starting.

Technical Specifications:

• Voltage Range: 2.3 kV – 15 kV AC

• Power Range: 200 kW – 10,000 kW

• Enclosure Protection: IP41 or IP54

Operating Principle:

The soft starter controls the motor voltage by adjusting the thyristor firing angle, allowing precise control of starting current and torque. Once the motor reaches full speed and current stabilizes, the bypass contactor engages, routing power around the thyristor stack to minimize heat generation and improve efficiency. At this stage, the motor operates at full line voltage.

Key Features:

• Intelligent solid-state motor control system

• Smooth acceleration and deceleration with programmable settings

• Adjustable current limit (100% – 400% of FLA)

• Optimized starting current and torque control

• Bypass contactor for efficient thermal management

• Reduced electrical and mechanical stress on motor and system

• Suitable for a wide range of industrial motor applications

Multimotor Control Option:

• One soft starter module can control up to 4 medium voltage motors

• Built-in 2-minute delay between motor starts to allow proper cooling of thyristors

• Ideal for applications requiring sequential motor operation

Standard Configuration Includes:

• Mains disconnecting switch and earthing switch

• Line fuses for protection

• Line contactor

• Thyristor-based soft starter module

• Bypass contactor

• Motor protection relay

• Indication lamps and control interfaces

Optional Features:

• Capacitor bank with fuses and contactor

• Flexible cable entry options (top/bottom, incomer/outgoing) as per project requirements

• Customized configurations based on application needs

For further technical details, customization options, or project-specific requirements, please contact us to discuss the most suitable solution for your application.