Advanced Backup Power Auto-switching Solutions for 35kV and Below
The device features bus coupler auto transfer, line auto transfer, and adaptive functions. It can achieve automatic backup power input and working power restoration for dual-power or single bus section under 35kV and below voltage levels.
This is a four-section voltage auto transfer device that can simultaneously collect two sections of incoming line voltage, two sections of bus voltage, and two sections of incoming line current, further improving the reliability of device operation.
The device supports bus coupler auto transfer, line auto transfer, and adaptive mode. Line auto transfer supports both primary-standby and mutual standby modes. It adapts to PT installation on incoming line side or bus side, and can use PT voltage or live indicator status for transfer criteria.
High-quality aluminum chassis with brushed oxidation surface treatment. The chassis features elegant appearance and excellent shielding effect. Rear side uses pluggable terminal blocks with fixed flanges for convenient on-site debugging, maintenance, and replacement.
10 analog input channels for collecting two sections of incoming line voltage, two sections of bus voltage, and two sections of current data. Three-phase bus voltage adapts to both three-PT star connection and two-PT VV connection.
6 digital input channels for real-time collection of auto transfer incoming line switches and section switches status. 2 channels support connection of incoming line live indicator status for transfer logic criteria.
9 relay output contacts can control two incoming line switches and tie switch closing/opening, with additional load shedding output contacts.
Real-time collection of electrical parameters including two sections of incoming line voltage and two sections of incoming line current.
Large-screen LCD display with Chinese menu operation for friendly human-machine interface. Settings, sampling data, control word meanings, input names and statuses, fault information, etc., are all displayed in Chinese for convenient on-site setting adjustment and fault query.
Complete fault recording functions display fault occurrence time, fault current and voltage data directly on the LCD screen. High-precision clock chip enables accurate fault recording and supports network time synchronization from distribution master station.