Distribution Terminal Unit (DTU) Manufacturer

Distribution Terminal Unit (DTU)

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The distribution automation terminal utilizes advanced digital signal processing, high-speed industrial network communication, multi-CPU integration, an embedded industrial chipset, and a multi-task real-time operating system. It offers robust stability, high reliability, excellent real-time performance, broad environmental compatibility, and powerful functionalities for detection and control in switchgear and ring main unit applications within distribution systems. This next-generation microcomputer-based remote terminal unit integrates telemetry, tele-signaling, remote control, protection, and communication capabilities.

Features

Powerful Platform:

Employs a 4U standard chassis with a modular front plug-and-play structure, versatile and interchangeable circuit design, ease of maintenance, and convenient technology upgrades. A single main control board handles both algorithm processing and communication functions, ensuring a simple and reliable system architecture.

Enhanced Interference Immunity:

Features multi-level isolation and effective shielding measures from the chassis to the PCB design and component selection. Adherence to ISO9000:2000 standards during manufacturing using surface mount technology ensures excellent electromagnetic compatibility and high operational reliability without requiring external anti-interference measures for panel assembly, simplifying design and maintenance.

Abundant Remote I/O:

Within a compact 4U, 19-inch core unit, it supports up to 16 circuits, with each circuit providing 3 remote measurements, 7 remote signals, and 2 remote controls.

Flexible Configuration:

The device maintenance tool software offers comprehensive configuration options for device channels, fixed value parameters, and forwarding point tables. This allows for easy adaptation to various engineering applications through configuration rather than program modification, significantly enhancing device reliability.

Excellent Maintainability:

The device maintenance tool software is organized into common, engineering, production, and development sections, providing comprehensive maintenance functions for personnel with different roles.

Comprehensive Fault Recording:

Supports cyclic storage of over 64 waveform recording sets, capturing 4 cycles before and 8 cycles after a fault with a sampling rate of 128 points/cycle. Simultaneous recording of 2 circuits is possible. Fault recording triggers include overcurrent faults, line voltage loss, zero-sequence voltage, and sudden changes in zero-sequence current, with remote and local setting of trigger parameters.

Operating Conditions

Relative Humidity: Daily average ≤95%, monthly average ≤90%

Seismic Grade: 8

Altitude: ≤2000m

Installation environment: Places free from flammable or explosive hazards and chemical corrosion.