HomeProductsHYSQ1 Series High Voltage Solid-State Soft Starter

HYSQ1 Series High Voltage Solid-State Soft Starter

The HYSQ1 high-voltage solid-state soft starter controls motor terminal voltage during acceleration to reduce starting current, voltage drop and mechanical shock. It is intended for medium- and high-voltage squirrel-cage or synchronous motors driving pumps, fans, compressors, crushers and conveyors, with configurable start parameters and protection functions for demanding industrial operation.

Key Features

  • Modular design: Each module uses high-power thyristors with optically isolated triggering, ensuring reliability and consistency.
  • Comprehensive protection: Built-in over-voltage, under-voltage, over-current, overload, and phase-loss protections with automatic fault alarms and trip shutdown.
  • Advanced cooling system: Includes RC snubber circuits and vacuum contactors for enhanced safety and extended equipment life.
  • Optical fiber triggering: Strong anti-interference design guarantees stable and reliable triggering.
  • Integrated control platform: Equipped with a 32-bit ARM microcontroller for precise control, with a Chinese/English LCD interface for easy operation.
  • Smart control: Parameters such as starting torque, starting current, starting/stopping time are easily configurable. Supports networking with PLCs and computer control systems.
  • Wide applicability: Suitable for pumps, fans, compressors, conveyors, crushers, mills, and other heavy-duty industrial loads.

Operating Conditions

  • Ambient temperature: –25°C to +50°C
  • Installation environment: Indoor, free from direct sunlight, dust, corrosive or flammable gases, oil mist, steam, or severe condensation.
  • Humidity: 5%–95% RH, non-condensing
  • Altitude: ≤1500 m (derating required for >1500 m)
  • Vibration: ≤5.9 m/s² (0.6 g)
  • Not suitable for: Strong vibration, severe dust, corrosive gas, or explosive environments

Technical Specifications

Parameter Specification
Applicable Motor Three-phase medium/high voltage squirrel-cage asynchronous or synchronous motor
Rated Voltage 3 kV, 6 kV, 10 kV ±30%
Frequency 50 Hz
Rated Current Adjustable 15–9999 A
Starting Voltage Adjustable 20–100% Ue
Starting Current Limit Adjustable 20–100% Ue
Starting Time 0–120 s adjustable
Stopping Time 0–120 s adjustable
Current Limiting Multiple Adjustable 100–500% Ie
Control Inputs/Outputs 4 programmable input signals, 4 programmable output signals
Communication RS-485 interface
Cooling Natural air cooling / forced air cooling
Cable Entry Top entry, bottom exit
Protection Class IP32

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