Low & Medium Voltage Softstarters

Solcon

Solcon RVS-DN & HRVS-DN are a third generation, digital Low & Medium Voltage Soft Starters designed for use with standard asynchronous and synchronous motors.  This highly sophisticated soft starter ensures smooth, step-less acceleration and deceleration, eliminating high inrush current and damaging mechanical torque on startup and mechanical wear on stopping. 

The HRVS-DN is available as a stand-alone product or as part of a complete system including Line and/or Bypass Contactors.  Additional options for medium voltage soft starter include Load Break Switch, Motor Protection Relay, Digital Multimeter, etc. 

We can customise our medium voltage soft starters to solve all of your inrush and startup problems.

• Eliminates high inrush current and high mechanical torque on startup.
• Soft, stepless acceleration & deceleration.
• Unique starting & stopping characteristics.
• User friendly, straight forward set-up and operation.
• Sophisticated motor protection package.
• Heavy duty design: 50°C ambient temperature.
• Innovative low voltage test mode - full function-testing with a small L.V motor, using LV mains.
• Advanced Electronic Potential Transformer utilising Patent Pending 'wireless' fiber-optic controlled firing system.
• Each starter is tested for Partial Discharge (corona) to ensure long term reliability.
• Power factor capacitors can be connected directly to the upstream contactor.
• 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 available on request).
• Wide 45-65Hz Auto-tracking frequency range realized by special software with unique hardware arrangement (designed for Marine, Offshore and Generators operating under continuous frequency fluctuation).
• Torque and current starting and stopping characteristics.
• Pump control software.
• Analog output option.
• Motor Insulation Protection option (with programmable alarm and trip levels via seperate additional output).

• Soft start and soft stop.
• Current limit.
• Torque & Current Control ramps.
• Pump Control characteristics.
• Pulse (kick) start.
• Tacho/encoder feedback (option).
• Dual Adjust - 2 start/stop characteristics for varying loads, two speed motors, etc.

Soft starting and stopping utilising our world renowned 'Pump Control Program' - choose the most effective curve for acceleration, deceleration and adjust for final torque.

Set-up & Supervision of a Medium Voltage Soft Starter

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• Illuminated LCD with 2 lines, 16 characters each.
• Selectable languages: English, German, French or Spanish.
• The LCD displays motor current, fault description as well as statistical data.
• Easy set-up using six soft-touch keys to change preprogrammed 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
  Control Inputs & Outputs for a Medium Voltage Soft Starter
  Typical Applications for a Medium Voltage Soft Starter:
  Marine & Offshore Applications for a Medium Voltage Soft Starter:

  Comprehensive Motor & Starter Protection with Occurrence status table	Active During
  	Start	Run	Stop	Soft Stop
  Too many starts & Start Inhibit Time	√
  Electronic Overload with selectable curves		↔
  Shear Pin (Jam)
  Starter Protection - trip function at 850% FLC in less than 1 cycle	√		√	√
  Motor Protection - trip function
  During Start-factory set at 850% FLA in less than 1 cycle	√			√
  During Run-adjustment 200-850% FLA with adjustable delay		√
  Programmable setting
  Starter Protection - trip function at 850% FLC	√	√		√
  Motor Protection - Alarm & Trip functions On fault "Immediate Relay" acts as alarm w/adjustable delay. Trip will not occur if fault is cleared within the time delay.
  During Start - preset at 850% FLA with adjustable delay	√			√
  During Run - prog. 200-850% FLA with adjustable delay		√
  Under current		√
  Unbalance Current	√	√		√
  Ground Fault Current		√
  Phase loss	√	√		√
  Phase sequence	√	√		√
  Under voltage. Time delay is overridden in a "No-Volt" case	√	√		√
  Over voltage with adjustable time delay	√	√		√
  Under / Over Frequency when range exceeds "Auto Tracking"	√	√		√
  Long start time (Stall protection)	√
  Shorted SCR & Wrong connection (Load Loss)	√			√
  External fault 1 & 2	√	√	√	√
  SCR protection by Metal Oxide Varistors (MOV)	√	√	√	√
  Starter over-temperature	√	√	√	√
  Starter internal test Passed When supply voltage is connected and after the "On" LED is lit.	√	√	√	√
  Power ON & NO Start signal			√
  By-Pass contactor Open		√

  Chassis type or Cabinet (IP 30-54) or NEMA,with L.V. & M.V. segregated compartments.
  Single or Multi-Motor Versions.

       Single : One Soft-Starter and One Motor

       Multi : One Soft-Starter and Two to Four Motors

  • HRVS - DV M.V. soft starter
    
  • Line & Bypass Vacuum Contactors
  • Low voltage control system

  Options for a Medium Voltage Soft Starter

  • Insulation Alarm - where motor insulation is continuously checked. Alarm and Trip levels are programmable
  • Communication: RS 485 with MODBUS, PROFIBUS or MODBUS-TCP
  • Analogue Output of motor current

  (field programmable 0-10VDC, 0/4-20mA or inverse)

  • Motor Protection Relay MPR 2000 with up to 10 temperature inputs (Thermistors / RTDs)

  Consult factory for further details

  • Main Isolator including handle, Motor Protection type main fuses (with or without blown fuse indicator) etc (Incoming Cabinet containing all the options)
  • Digital Power, Voltage and Current Meter DPM-10, for continuous parameter display.

  • • 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 voltage: 110-120, 220-240VAC / 50-60Hz or 110 - 220VDC to be specified at time of order.
    • 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 (four C/O relays when insulation option is used):
      1. 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.
      2) 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.
      3) 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.
    • 4) Insulation Alarm relay - changes position upon insulation detection at a pre-programmed level.
    • Fans and centrifuges
    • Conveyors and monorail systems
    • Pumps, Compressors and Chillers
    • Starting large motors from weak power supply
      (diesel generators, long supply lines, etc.)
    • Thrusters
    • Cargo Pumps (LNG, LPG, etc.)  
    • Water & Ballast pumps
    • Refrigeration compressors
    • Hydraulic pumps & power packs
    • Main Propulsion (Variable Pitch Propellers)
  
  Scope of supply