Temperature control and monitoring system for power transformer windings using fiber optic sensors
On-line monitoring of function and condition parameters and the efficiency of the cooling system are key elements in determining the working condition of transformers. This paper presents the implemented hardware and software solutions for carrying out the winding temperature on-line monitoring system using fiber optic sensors. The actual winding temperature is a measurand which defines the condition, load capacity and operating life of transformers. By carrying out the temperature control and monitoring system for power transformer windings using fiber optic sensors, ICMET Craiova aligned itself to the requirements of the international standards.
Development of an OPC server for remote monitoring and control based on GPRS Networks
Remote monitoring and control system often use wireless communication to connect the centre and local devices at present. In order to solute HMI communication with the remote devices via GPRS networks, An OPC server application was developed with C++ builder environment. OPC server sends and receives data using GPRS networks by TCP/IP protocol and provides OPC data access channel to HMI. It has been used to monitor and control the heat exchanger station in city heat supply system. The OPC server has configurable and project management features that make it easy to apply to the distributed SCADA system.
Application of Optical Fiber Temperature Measurement Technology to Transformer
The principle of optical fiber temperature measurement technology and its application to transformer are presented.