Product Overview
The GZDW series microcomputer-controlled DC panel is applicable to substations, power plants, industrial and mining enterprises, electrified railways and high-rise buildings of different voltage levels, serving as the operating and control power supply for high-voltage switchgear, relay protection and automatic devices. Adopting an integrated design concept, the system consists of a monitoring module, rectifier modules, an insulation monitoring module, a battery inspection module, a binary-input monitoring module and a step-down module, and features professional technology, rational configuration, intelligent measurement and control, and simple operation. It can communicate with a host computer to conveniently implement the four-remote functions of telemetry, telecontrol, telesignalling and teleadjustment, making it an ideal DC power supply for unattended operation. The GZDW series microcomputer-controlled DC panel consists of a monitoring module, rectifier modules and an insulation monitoring module in an integrated design.
Type Designation
Product Features
- Automatic changeover between two AC inputs ensures normal system operation;
- Extra-wide voltage input range with strong network adaptability, suitable for relatively harsh environments.
- High-frequency switching power supply technology with modular design and N+1 hot standby, giving high reliability;
- The rectifier modules support live hot swapping for convenient and fast online maintenance;
- The charging modules adopt the latest international switching technology, with high conversion efficiency and low electromagnetic interference.
- Hardware low-differential autonomous current sharing technology, with a typical output current unbalance between modules of ±3%.
- The monitoring unit can use an LCD screen, touch screen or colour touch screen with large-screen graphic display, offering a friendly and rich interface and simple, convenient operation;
- The monitoring unit monitors and controls system operation comprehensively in real time, and can perform system setting and information query; through background and remote monitoring it can implement the four-remote functions of telemetry, telecontrol, telesignalling and teleadjustment to achieve unattended operation;
- The monitoring unit automatically and precisely manages the battery voltage, charge/discharge current and battery temperature compensation, with over/undervoltage, over-temperature and fault alarms to ensure the battery operates in the best condition and to extend its service life;
- Manual and automatic voltage regulation functions as well as branch insulation detection;
- Reliable lightning protection and a high degree of insulation protection ensure system and personal safety;
- Two communication interfaces, RS232 and RS485, and three communication protocols to choose from: RTU, CDT and MODBUS;
- An expansion interface is provided for connecting other external devices;
Related Products
Low-voltage switchgear of the same series and other types available for selection:
