T/ZNDW 001-2022 Switching Transformer Integrated Monitoring Device Technical Specification

Scope

Main technical content: This standard specifies the composition, selection and configuration principles, technical requirements, test items and requirements, inspection rules, marking, packaging, transportation and storage, installation and acceptance of comprehensive monitoring devices for ±500kV, ±800kV, and ±1100kV converter transformers. The comprehensive monitoring device for converter transformers consists of a sensing unit, a comprehensive monitoring unit, and a comprehensive monitoring backend. The sensing unit is installed on or near the surface of the converter transformer and consists of sensors and signal processing modules, which are used to automatically collect, process, and transmit the status information of the converter transformer. The comprehensive monitoring unit consists of an analysis module, a power management module, a communication module, etc., which collects the data sent by the sensing unit and realizes functions such as data processing, joint analysis, local judgment, threshold setting, and real-time warning. The comprehensive monitoring backend receives the monitoring data and analysis and warning results from the comprehensive monitoring unit and manages the comprehensive monitoring device, with control functions such as parameter setting, data retrieval, time synchronization, threshold setting, and forced restart. The comprehensive monitoring device for converter transformers at least includes comprehensive monitoring, analysis, and warning for dissolved gas in oil of the converter transformer, ultrasonic partial discharge, high-frequency partial discharge, extra-high frequency partial discharge, current of the tap-changer drive motor, vibration of the tap-changer, and single hydrogen, etc.

Development Information

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