MV-DS Medium Voltage, Digital Soft Starter 2,300-15,000V, 60-1,200A (Busbar Version)

Full Featured, Microprocessor-Based, for Motors 60-1,200A, 200-26,150KW, 2300-15,000V.

MV-DS Busbar Digital Soft Starter

The MV-DS is a third generation, Medium Voltage, digital soft starter, designed for use with standard asynchronous and synchronous motors. This highly sophisticated soft starter ensures smooth, step-less acceleration and deceleration, eliminating current and mechanical shocks on motor and load.

The MV-DS may be supplied as chassis type or a complete system including Line and/or Bypass Contactors. Addible options are Load Break Switch, Fuses, Motor Protection Relay, etc.


Advantages at a Glance

  • Innovative low voltage test mode - full testing with a small L.V motor using standard built in features
  • Advanced Electronic Potential Transformer utilizing Patent Pending "wireless" fiber-optic firing system
  • Each starter is tested for Partial Discharge (Korona) ensuring long term reliability
  • Power factor capacitors can be connected directly to the upstream contactor
  • Heavy duty design at 50°C ambient temperature
  • Reduced inrush current and mechanical shock
  • Third generation microprocessor circuitry
  • Soft, step less acceleration & deceleration
  • Unique starting & stopping characteristics
  • Sophisticated motor protection package
  • User friendly, easy setting and operation
  • IP30-standard, higher protection by special order
  • Two optional methods of delivery: Chassis type for self assembly or Complete system
  • RS485 Communication with MODBUS, PROFIBUS or MODBUS/TCP protocols (others - upon request)
  • Wide 45-65Hz Auto-tracking frequency range combining special software with unique hardware arrangement (designed for Marine, Offshore and Generators operating under continuous frequency variation)
  • Torque and current starting and stopping characteristics
  • Pump control software

Starting & Stopping

  • Illuminated LCD with 2 lines, 16 characters each
  • Selectable languages: English, German, French or Spanish
  • The LCD displays motor current, fault description and statistical data
  • Easy setting using six soft-touch keys with default parameters
  • Eight LEDs for a quick status display
  • Control voltage On-Self Test OK
  • Motor soft starting
  • Motor running
  • Motor soft stopping
  • Motor stopped
  • Test Mode Activated
  • Dual Adjust mode
  • Fault

Statistics

  • Last Starting Period
  • Last Start Maximum Current
  • Total Run Time
  • Number of Starts
  • Last Trip
  • Trip Current
  • Total Number of Trips
  • Historical Trip Event Recorder (10 Event conditions)

Control Inputs & Outputs

  • Control voltage: 110-120, 220-240VAC / 50-60Hz or 110 - 220VDC to be specified
  • Separate inputs for Start, Stop (Emergency) and Soft Stop
  • Two programmable External fault inputs - will stop the motor 2 sec. After the contact closes
  • Aux. Contacts - three C/O relays, 8A, 250V, 2000VA
  • Immediate Relay - changes position upon start signal, with adjustable On & Off delays
  • Returns to original position upon Voltage Outage, Fault, Stop signal and Soft stop signal at the end of soft stopping process. It can also be configured as a "Shear-pin Alarm" contact.
  • End of Acceleration Relay - operates upon completion of starting process, with adjustable On delay. Returns to original position upon Voltage outage, Fault, Stop and Soft Stop signals.
  • Fault Relay - can be programmed as:
  • Fault - changes position upon Fault, returns to original position upon Reset.
  • Fault-Fail-Safe - changes position upon control voltage connection, returns upon fault.

Typical Applications

  • Fans and centrifuges
  • Conveyors and monorail systems
  • Pumps, Compressors and Chillers
  • Starting large motors from weak power supply (diesel generators, long supply lines, etc.)

Marine & Offshore Applications

  • Thrusters
  • Cargo Pumps (LNG, LPG, etc.)
  • Water & Ballast pumps
  • Refrigeration compressors
  • Hydraulic pumps & power packs
  • Main Propulsion (Variable Pitch Propellers)