Dry-type Transformer Protection Device

The Dry Type Transformer microcomputer protection device is an economical protection device for integrated measurement, control, protection and communication. It is tailor-made for the high-voltage distribution room of the distribution network terminal, with three-stage non-directional current protection as the core, equipped with the monitoring and collection function of the power grid parameters, which can save the traditional ammeter, voltmeter, power meter, frequency meter, watt-hour meter, etc., and can transmit the measurement data and protection information to the upper computer through the communication port, which is convenient for realizing the automation of the distribution network. The device integrates the automatic switching function of the backup power supply in the device according to the characteristics of the distribution network power supply, which can flexibly realize the functions of the incoming line backup and the bus backup.
The microcomputer protection device for dry-type transformers adopts the internationally advanced DSP and surface mount technology and flexible fieldbus (CAN) technology to meet the requirements of different voltage levels of substations, and realize the coordination, digitalization and intelligence of substations. This series of products can complete the protection, measurement, control, regulation, signal, fault recording, watt-hour collection, small current grounding line selection, low-frequency load reduction and other functions of the substation, making the technical requirements, functions and internal wiring of the product more standardized. The product adopts distributed protection and measurement and control devices, which can be installed in a centralized panel or dispersedly. The configuration can also be changed arbitrarily according to user needs to meet different solution requirements.