SQ8600 Series Distribution Terminal Unit (DTU)

Product Profile

SQ8600 DTU series is applicable to 10KV power distribution room, ring network cabinet, switching station, distribution substation, switching station, etc. DTU supports the main station. It adopts centralized control mode, which can avoid multiple reclosing of feeder outgoing switches, locate and isolate faults accurately and quickly, and the time of isolating faults is not affected by the line distance and the number of line segments. The power supply can be restored according to the optimal economic solution.

Key Features

• Local and Remote Maintenance
• Power Management
• Self-diagnosis, self-restoration
• Timing functions
• Point table forwarding configuration
• Communication functions
• Historical data storage
• Fault detection and restoration
• Remote control function
• Telemetry function

Technical Features

• Adopting "four-in-one" integrated design of measurement, control, protection and communication, it realizes intelligent solutions for opening and closing stations, ring network cabinets and box change.
• The core unit adopts standard cabinets. The whole machine has a variety of structural forms, suitable for different types of installations, e.g., on the floor, wall, cabinet.
• Independent design of functional plug-ins, bus-type structure, easy functional expansion, and support for hot plugging/unplugging.
• Unified hardware platform, dual CPU technology, high-speed DSP + ARM system, mature protection and measurement and control algorithms to ensure the accuracy and speed of data collection.
• Industrial grade military grade for device components, meeting IEC6 l 00-4-IV (the most stringent requirement) electromagnetic compatibility requirements, and adapting to harsh outdoor environment.
• Flexible configuration of hardware and software, strong adaptability, able to provide multi-loop monitoring, high and low voltage online monitoring functions at the same time. Its communication manager function supports a variety of communication methods, can be configured with a variety of communication protocols, and have data forwarding functions.
• Intelligent monitoring and management of power supply, automatic judgment of AC power loss and battery undervoltage; automatic non-disturbance switching, charging and discharging, and activation management of the battery. Connections with multi-master stations, remote maintenance function, self-diagnosis, remote upgrade, online parameter adjustment function.
• Handheld PDA management function. Handheld PDA can be configured for parameter setting according to user needs, convenient for on-site installation and maintenance.