Traditional wind or photovoltaic power stations employ decentralized devices such as Programmable Logic Controllers (PLCs), lightning protection modules, Potential Transformers (PTs), current transformers, and voltage transformers to fulfill transformer protection, measurement & control, and data uploading functions. However, the use of multiple auxiliary devices leads to numerous system wiring fault points, increasing complexity in commissioning, operation, and maintenance. Additionally, the involvement of equipment from various manufacturers complicates coordination during project startup, debugging, and ongoing service.

The LY900 Box Transformer Intelligent Measurement & Control Device adopts an integrated design, consolidating functions including multi-parameter electrical protection, non-electrical protection, measurement & control, communication, and local operation. A single unit can accomplish tasks that previously required coordination among multiple devices. While maintaining equivalent capabilities in transformer protection, monitoring, and data exchange, this solution significantly reduces operational complexity and lifecycle costs.