dear sir/madam
i need base paper for automatic transformer cooling fans control system and parameter monitering system ny using plc and scada. So please send the base paper to my mail id
email: arun237.eee[at]gmail.com

The monitoring and control of cooling system of a transformer using automation. Probability of faults on power transformer is undoubtedly more and hence automatic protection is absolutely necessary. Temperature sensor is used to sense the temperature of the power transformer that provides the value of temperature. Output from the sensor is fed to the Programmable Logic Controller (PLC). The PLC is a digitally operating system designed for use in an industrial environment, which uses the programmable memory for its internal operation of user-oriented instructions and for implementing specific function such as logic, sequencing, timing, counting and arithmetic. By introducing PLC into action the process becomes more flexible, reliable and PC friendly. HMI activities are availed to have a better visualization of the process and control. Trouble shooting experience becomes easier compared to existing technology.


With the advent of technology and availability of motion control of electric drives, the application of Programmable Logic Controllers with power electronics in electrical machines has been introduced in the manufacturing automation systems. The use of PLC in automation processes increases reliability and flexibility and also reduces production costs. To obtain accurate industrial electric drive systems, it is necessary to use PLC interfaced with power converters, personal computers and other electric equipment. A PLC based control system was set up comprising an Allen-Bradley PLC, an Allen-Bradley PowerFlex 4M Variable Frequency Drive, a three-phase induction motor and workstation) have been delivered, configured and integrated together for the monitoring and control of a Motor Driving a conveyor load. Various control schemes have been used to operate the induction motor in speed and position control modes of operation using PLC programming developed on the workstation.