Dry-type transformer microcomputer protection devices are economical, integrated measurement, control, protection, and communication devices. Tailored for high-voltage distribution rooms at distribution network terminals, they feature three-stage non-directional current protection and are equipped with grid parameter monitoring and acquisition capabilities, eliminating the need for traditional ammeters, voltmeters, power meters, frequency meters, and watt-hour 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 the distribution network power supply, the device incorporates an automatic backup power supply function, enabling flexible implementation of both incoming and busbar backup power supply.
Dry-type transformer microcomputer protection devices utilize internationally advanced DSP and surface mount technology, along with flexible fieldbus (CAN) technology, to meet the requirements of diverse substation voltage levels, enabling coordinated, digital, and intelligent substation operation. This series of products performs substation protection, measurement, control, regulation, signaling, fault recording, energy acquisition, low-current ground fault selection, and low-frequency load shedding, further standardizing the product's technical requirements, functions, and internal wiring. 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.