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.
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
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
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.