High Tension Soft Starter

High Tension Soft Starter

Working Principle Of High Tension Soft Starter

  • Flux Compensated Magnetic Amplifier soft starters are step less reduced Voltage starters which ensure a constant low starting current with incremental voltage and torque to the motor to achieve smooth acceleration of the drive.
  • The Soft Starter is connected in series with the motor either on the line side or neutral side and thus controls the starting current and starting torque.
  • As the motor speed increases the FCMA impedance decreases due to counter emf feedback to achieve incremental voltage and torque for the motor while keeping the current constant.
  • The voltage across the motor increases smoothly from the starting value(50-60%) to run value(94-98%) with motor speed.
  • A built-in bypass contactor closes to ensure full voltage running of the motor.
  • Bypass contactor operation can be time,Current or speed based.
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Silent Features Of High Tension Soft Starter

  • KW-Range:- Upto-16.5MW
  • System Voltage:- 3.3KV / 6.6KV / 11KV
  • Starting current limit up to 1.P.U
  • Low starting current
  • Amplitude control
  • Sinusoidal Waveform -harmonics Free
  • Facility of Bypass for full run voltage
  • Designed for multi motor starting
  • Available with Line side or Neutral side models for HT Motors
  • Non Electronic Device
  • Suitable for extreme weather conditions
  • Indoor and outdoor models
  • Optional soft stop
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Advantages Of High Tension Soft Starter

  • Simple for Installation & operation
  • Smooth starting and acceleration
  • Reduced starting current & mechanical shock, which increases the Motor & Equipment life
  • Capital cost saving in power systems
  • Starting of motors on limited KVA.
  • Less maintenance
ht fcma
ht fcma typical sld-1
ht soft starter typical sld

Applicable Standards Of High Tension Soft Starter

  • Medium and high voltage FCMA Soft Starters are designed and manufactured and tested in line with relevant clauses of IEC/ IS standards. The General standards applicable are IS 5553, IEC60071-2, IEC60060-1, IEC 62271-1, IS7816:1975, IS12661(Part1):1988, IEC60529.
  • The FCMA Soft Starters are tested at Central Power research institute (CPRI) Bangalore, INDIA.
  • The Soft Starters are tested at National Aeronautical laboratories (NAL) Bangalore for Seismic certification for use in Atomic power stations.