Dielectric loss is a key parameter in capacitive power equipment insulation online monitoring. The implementation of dielectric loss on-line monitoring for high-voltage capacitive equipments is of great significance to its safe operation. Based on LabVIEW virtual instrument technology, a set of optical power, optical synchronous and optical fiber transmission dielectric loss on-line monitoring software system is developed in this paper. The SCADA software interface is designed, which is clean, simple and easy to operate. It designs the functional modules such as data acquisition and processing, information query and the remote monitoring module. The acquisition module communicates with the USB interface of the computer through the virtual instrument software architecture; Information query module implements the connection with SQL Server database by LabSQL, facilitating data storage and user query; The remote monitoring module through Microsoft's ASP.NET web development model and combined LabVIEW remote publishing technology, realizes the remote monitoring capabilities based on B/S structure.
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