Development of PC based voltage Transducer
Keywords:
Remote Terminal Unit (RTU), Analog to Digital Conversion (ADC), UART, Asynchronous Receiver and Transmitter (UART), Automation System (AS)Abstract
This project deals with the partial development of basic circuitry and programming for the IEDs (Intelligent Electronic Devices) deployed at power stations as per their functionalities, wherein only voltage parameters may be acquired from the transducer. The functionality can be replicated on a design of a basic voltage transducer. Initially, the transducer will measure certain AC voltage levels, and the measured values may be displayed on an LCD display or on a Personal Computer (PC). For display of parameters on PC, the measured value will be digitized by a microcontroller and then encapsulated in a communication frame on serial communication. The encapsulation of digital data into frames is done through UART packaging. A computer may be used for developing software to extract the encapsulated data from the transducer via the communication interface. The transducer may also provide a protocol to configure the communication parameters and scaling factors as per the user's requirements.