Abstract:
This project profile envisages the production of Automatic Curtain Opener by setting up of a unit in a small scale sector. The Automatic Curtain opener are used for opening and closing of the stage of any good theatre, auditorium conference hall etc. The mechanism should automatically open and close the curtain depending on the situation of the function being performed on the stage. The mechanism consist of single phase induction motor drive a forward-reverse starter and two limit switches. The motor when actuated by the push buttons and contactors may rotate in either direction depending upon the direction of current flowing through its main winding. The motor once started will run for the duration required to open/close the curtain fully then stop. The motor when
required to stop requires limit switches. In the Automatic Curtain Opener the motors runs in both the direction for opening and closing hence two numbers of limit switches is required.
