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Project Description: Automatic Star Delta Starter Using Relay and Adjustable Electronic Timer for 3 Phase Induction Motor

   

Added on  2021-04-17

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COMPETENCYDEMONSTRATION REPORTCareer Episode 3MD IFTAKHAR HAQUE KHAN
Project Description: Automatic Star Delta Starter Using Relay and Adjustable Electronic Timer for 3 Phase Induction Motor_1

CE 3.1 Project InformationName of the project: Automatic Star Delta Starter Using Relay and AdjustableElectronic Timer for 3 Phase Induction MotorLocation of the project: [PLEASE FILL]Project Duration: [PLEASE FILL]Organization: [PLEASE FILL]Role and Designation during the time: Team MemberCE 3.2 Project BackgroundCE 3.2.1 Characteristics of the projectMost of the industries nowadays are using the three-phase induction motor for theaccomplishment of the operational activities within the industry. I had developed an approachthat can be helpful in reducing the starting current of the motor as it consumes high current forbeing started. I used the electronic timer and relays that will be making it possible for enhancingthe start-up current during the starting phase. These electronic devices are helpful in switchingthe power supply and mode of operation of the induction motor during the starting phase of lowcurrent drawing to the full load drawing current.
Project Description: Automatic Star Delta Starter Using Relay and Adjustable Electronic Timer for 3 Phase Induction Motor_2

CE 3.2.2 Objectives developed for the projectIn manner to accomplish every activities in an effective and efficient manner, it isnecessary to develop real world objectives and goals. I tried to manage the scope of the projectthrough developing following goals and objectives:To effectively setup the instant switching mode from star to delta and vice versaTo implement microcontroller for controlling the switching process automaticallyTo save energy and provide a product that can contribute in making it happenTo manage the budget low without hampering the quality and output of the projectCE 3.2.3 My area of workI was commanding the whole team as a leader and I had tried to manage their roles in theproject through assigning jobs to the team members. I tried to manage the project constraints as itwas planned during the planning phase. I had supplied 415 V AC to the three single-phasetransformer of rating 230 / 12 V output. Voltage is supplied to the printed circuit boards fromone of the connected transformer passing through three bridge rectifier sets in manner to beoperated at 12 V Dc relays. I had also utilized the same output for supplying the microcontroller89C 2051passing the connection through 7805 voltage regulator that can be utilized for obtaining5V DC output from rest of the transformers. This transformer stepped down the voltage to 12 VDC that is then supplied to the microcontroller for automatically operating the switching controlsof the star and delta connection. Following is the design setup for the completing the circuit ofthe proposed model:
Project Description: Automatic Star Delta Starter Using Relay and Adjustable Electronic Timer for 3 Phase Induction Motor_3

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