2-in-1 Comprehensive Protection & Auto Transfer Solutions
This is a 2-in-1 device combining microcomputer comprehensive protection device and microcomputer auto transfer device. Features elegant appearance, simple installation, high integration, powerful functions, wide application range, strong versatility, stable and reliable operation, and high cost performance.
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 real-time collection of two sections of incoming line or bus three-phase voltage, two sections of incoming line current, three-phase protection current, and zero-sequence current.
6 digital input channels for real-time collection of two sections of incoming line switches and section switch status. 2 channels support connection of incoming line live indicator status for voltage/no-voltage discrimination when PT is not installed.
9 relay output contacts: 4 output contacts control two sections of incoming line switch closing/opening, 2 output contacts control section switch closing/opening, 2 contacts for action and alarm signals, and 1 additional protection trip output contact.
Real-time collection of electrical parameters including two sections of incoming line or bus three-phase voltage, two sections of incoming line current, three-phase protection current, and zero-sequence 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 adjustment and 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 recording of various fault information. Also supports receiving network time synchronization from distribution master station.