The dry-type transformer microprocessor protection device is an economical protection system integrating measurement, control, protection, and communication. Custom-designed for high-voltage distribution rooms in distribution networks, it features three-stage omnidirectional current protection as its core, equipped with power grid parameter monitoring and acquisition functions. This eliminates the need for traditional ammeters, voltmeters, wattmeters, frequency meters, and energy meters. Measurement data and protection information can be remotely transmitted to a host computer via a communication port, facilitating distribution network automation. Based on the characteristics of distribution network power supply, the device integrates automatic backup power transfer, flexibly enabling backup power transfer for both incoming and busbar distribution lines.
The dry-type transformer microprocessor protection device utilizes internationally advanced DSP and surface mount technology, along with flexible fieldbus (CAN) technology, to meet the requirements of different voltage levels in substations, achieving coordinated, digital, and intelligent substation operations. This series of products can perform substation protection, measurement, control, regulation, signal processing, fault recording, energy acquisition, low-current grounding fault location, and underfrequency load shedding functions, making the product's technical requirements, functions, and internal wiring more standardized. The product adopts a distributed protection and control device, which can be centrally assembled or installed in a decentralized manner. The configuration can also be changed arbitrarily according to user needs to meet different scheme requirements.