Regenerative/Dynamic Breaking Operation Of Ac Motor

• 8 output and 8 input lines with 5V Level.
• Isolated serial communication interface through USB connector.
• 4 position user DIP switch.
• 8 user LEDs.
• 2 no of input push switches.
• 20×4 (or 16×2) LCD interface header.
• External JTAG header for programming

Headers

• 16 pin header for 5V level Output and 5V level Input.
• 2 no’s of 26 pin and 1 no of 10 pin headers for GPIO line termination (53 Pins).
• 10 pin External JTAG header for Programming
• 5V adapter connector for power supply (+5V, GND)
• 20 pins header used to interface 20×4 LCD or 16×2 LCD.
• Sine PWM technique used to control the speed of the induction motor. 

b) 1KW 3Φ 2 Level Voltage source Inverter:

•  I/P Voltage :           325V DC(max)
• O/P Voltage :           200V AC / 5A(max)
• Power rating :           1 KW
• 6 Numbers of SKYPER32 R – isolated driver provided for PWM isolation and driving
• Over load and short circuit protection available
• 6 no’s. of SEMIKRON IGBT Rating @600V / 75A Used.
• Each leg having 2 IGBT modules. 3 legs form 3 phase Inverter Power Circuit.
• 4 no’s Hall Effect current sensor provided for output current & DC link current measurement &protection
• Op-amp signal conditioner circuit provided for current sensors & output terminated in front panel for current wave measurement.
• Over current Trip circuit provided for over load protection.
• One number of LED provided to indicate TRIP Status
• One number of Reset Switch provided to reset the Trip Function
• Test points provided in control section for wave form measurement in CRO
• Regenerative /dynamic braking can be done

c)1HP  3PH AC induction motor

• 1HP  3PH AC Induction Motor
• Power :           75KW
• Supply :           200V AC ,50Hz in delta connection
• Speed :           1460 rpm
• Load :           Spring balance load setup with Dial indicator.
• Feed back :           Proximity sensor used to sense the speed of the motor.