Products
Medium-voltage soft-starters
VEDA-in MV SFT soft-starters are designed for the smooth starting and stopping of asynchronous motors with a squirrel-cage rotor and synchronous motors with a voltage of 1.2–10 kV.
Please contact us to request a calculation
check list for the order
- Specifications
- Review
- Advantages
• Rated voltage: 3 kV, 3.3 kV, 6 kV, 6.6 kV, 10 kV, 11 kV (+10 %, –15 %)
• Frequency: 45–65 Hz
• Control circuit power: 110–240 V AC (+10 %, –15 %)
• Motor current: 33–100 % of rated soft starter current
• Initial voltage: 10–50 % of rated voltage
• Current limiting: 100–400 % of motor current
• Acceleration time: 1–30 s
• Deceleration time: 1–30 s
• Alternative setting: Two sets of parameters for start/stop with separate settings: motor current, initial voltage, current limit, acceleration and braking time
• Auxiliary contact: 1 normally open/closed, 8 A, 250 V AC, 2000 VA
• End of acceleration: 1 normally open/closed, 8 A, 250 V AC, 2000 VA
• Fault contact: 1 normally open/closed, 8 A, 250 V AC, 2000 VA
• Communication interfaces: ModBus RTU, ProfiBus DP
• Operating temperature: –10…+50 °C
• Storage and transport temperature: –20…+70 °C
• Cooling system: Natural or forced air cooling
• Air humidity: No more than 95 %, without condensation
• Altitude: No more than 1000 m
• Environmental protection: IP31, IP42, IP54
Voltage regulation is carried out by controlled thyristors. VEDA-in MV soft starters cannot control asynchronous motors with a wound rotor. Structurally, VEDA-in MV SFT represents a basic cell soft starter cabinet in a basic configuration, as well as a system of additional cabinets for input and output cells and an optional controller cabinet.
Each MV soft-starter is calculated individually based on a completed questionnaire
• Reduction of voltage dips and blackouts.
• Elimination of mechanical impacts on equipment and reduction of wear.
• Reduction of starting current.
• Smooth starting and stopping of the motor.
• Easily adjustable and user-friendly interface.
• Fault log.
• Start statistics log.
• Low-voltage test mode for soft starters.
• Current limiting.
• No additional voltage required for high voltage synchronization.
• Prevents excess pressure in the system during pump start-up.
• Eliminates backflow valve shock during smooth pump stop.
• Selection of the optimal start curve depending on the load type.
• Alternative settings for start/stop characteristics for different load modes.