Product details

■Product Overview

The GZDW series microcomputer-controlled DC screen is suitable for substations, power plants, industrial and mining enterprises, electrified railways, and high-rise buildings with different voltage levels. It can serve as a high-voltage switch, relay protection, and automatic device operation power source and control power source. The system adopts an integrated design philosophy, composed of a monitoring module, rectifier module, insulation monitoring module, battery inspection module, switch quantity monitoring module, and step-down module. It features professional technology, reasonable configuration, intelligent monitoring, and convenient operation. It can communicate with upper-level computers to easily realize the "remote measurement, remote control, remote signaling, and remote regulation" four-remote functions, making it an ideal DC power equipment for unattended operation.

■Model Meaning

■Product Features

• Automatic switching of dual AC inputs to ensure normal system operation;

• Ultra-wide voltage input range, strong grid adaptability, suitable for relatively harsh environments;

• Uses high-frequency switching power supply technology, modular design, N+1 hot backup, high reliability;

• Rectifier module uses plug-in with electric heating拔 (pull-out), online maintenance, convenient and fast;

• Charging module uses international new switching technology, high conversion efficiency, low electromagnetic interference;

• Hardware low-difference independent current sharing technology, typical value of current imbalance between modules ±3%;

• Monitoring can choose LCD screen, touch screen, color touch screen, large screen graphic display, friendly interface, rich, simple and convenient operation;

• Real-time comprehensive monitoring and control of system operation, system

• setting and information query can be performed. "Remote measurement, remote control, remote signaling, remote regulation" four-remote functions can also be implemented through background monitoring and remote monitoring, realizing unattended operation;

• Monitoring can automatically and precisely manage battery voltage, charge/discharge current, and battery temperature compensation. It features undervoltage, overvoltage, and fault alarms to ensure the battery works in the best state, extending the battery life;

• Equipped with manual, automatic voltage regulation functions, and branch insulation detection function;

• Reliable lightning protection and high insulation protection measures to ensure system and personal safety;

• Provides two communication interfaces: RS232, RS485, and three communication protocols: RTU, CDT, MODBUS;

• Expansion interface available to connect external equipment;

■Operating Conditions

• Ambient temperature: -50°C ~ +40°C, and the average temperature within 24h does not exceed +36°C;

• Altitude: Not exceeding 2000m;

• Relative humidity: Not exceeding 50% when the surrounding air humidity is +40°C;

• Higher relative humidity is allowed at lower temperatures (e.g., 90% at +20°C), considering that temperature changes may produce appropriate condensation;

• The inclination angle with the vertical plane during equipment installation should not exceed 5°. The equipment should be installed in a place without severe vibration, impact, or corrosion.