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TECHNICAL SPECIFICATION

SCREEN PROTECTED DRIP PROOF TYPE
DIAGRAM

SCREEN PROTECTED WITH COOLING TYPE
DIAGRAM

TOTALY ENCLOSED FAN COOLED FOOT
MOUNTED TYPE DIAGRAM

TOTALY ENCLOSED FAN COOLED FLANGED FOUNTED TYPE DIAGRAM

• Basically, AC Induction Motors are constant motors.
  
  
• Its speed N is given by the formula: N=120/P
  
  
• The speed can be varied either by changing the frequency or the number of poles.
  
  
• Since, the number of poles are predetermined, the acceptable method for steeples speed variation is by changing the frequency of the input power.
  
  
• Reduction of frequency at the rated voltage saturates the motor.
  
  
• In order to effectively get variable speed with full load torque, the voltage needs to be reduced along with the frequency.
  
  
• Since, the magnetic flux and hence the torque in the AC induction motor is proportional to the voltage-to-frequency ratio, it is necessary to keep v/f ratio as constant throughout the speed variation range.

Technology:

AC Drives are designed to get constant v/f ratio. The CPU selects the desired voltage & frequency for a set speed & keeps this ratio constant by using the latest & world's best technology of Multi Pulse Width Modulation.

Highlights :

• Isolated power supply.
  
  
• Fully isolated control circuit.
  
  
• Plug in Control connections for easy installation.
  
  
• Excellent control response.
  
  
• Inherent soft starts.
  
  
• High starting torque available.
  
  
• Independent adjustment of acceleration and deceleration.
  
  
• Safe access to present & diagnostics for operational adjustment.
  
  
• Flexible system interface circuitry for process automation & auto Feed Back.
  
  
• Specially design for tropical Indian condition.
  
  
• Power efficient energy saving device.