Distributed Distribution Automation Terminal

• Type: Microprocessor Protection Device
• Component: Mechanical Structure Type
• For: for Switchgear
• Output Signal Type: Digital Type
• Production Process: Integration
• Material: /
• Model NO.: NRU-230
• IP Rating: IP20
• Certification: GB
• Customized: Customized
• Transport Package: Carton
• Specification: As standard drawing
• Trademark: OEM & ODM
• Origin: China
• HS Code: 8538900000
• Production Capacity: 10000/Month

Product Description

Applicable scope
The NRU-230 series distributed distribution automation terminal adopts advanced digital signal processing
technology, high-speed industrial network communication technology, embedded industrial chipset and multitask
real-time operating system, with strong stability, high reliability, good real-time performance, wide environmental
friendliness and powerful functions. In combination with the ring main unit switch, it can be combined into intelligent distributed type, voltage time type, voltage-current time type, protection type and other distribution network functions to achieve local distribution automation functions. The device, in conjunction with outgoing switch, branch switch, etc., can achieve fault removal and recovery of distribution line. It is a new generation of microcomputer distribution automation remote terminal device that integrates functions such as telemetering, remote signaling,remote control, protection and communication.

Model description

NRU-230	Distributed DTU bay level
NRU-230T	Distributed DTU common unit

Working environment condition
Environmental temperature: -20ºC ~+55ºC
Relative humidity: 5%~95%
Atmospheric pressure: 80kPa~110kPa (below 2000M altitude)
Other conditions: The air around the device should not contain substances with acid, alkali corrosion or explosive
properties, and should be free of lightning, rain and snow
Standard atmospheric conditions for the test: temperature +15~+35ºC , humidity 45%-75%, air pressure 86~106kPa

Rated electrical parameter
Working power supply: AC/DC85~265V,DC48V,DC24V
Rated voltage: 100V
Rated frequency: 50HZ
Rated current: 5A, 1A (customized)

Function configuration
NRU-230 : The specific functions of the distributed DTU bay level are as follows:
Three remote functions
15-way optoelectronic isolated digital input
13-way AC measurement, 2-way DC measurement
6-way output with optional voltage level and optional
operation circuit function
Protection function
Fiber optic longitudinal ratio differential protection
Three-section overcurrent protection
Three-section zero sequence current protection
Voltage splitting, frequency splitting
Three phase multiple reclosing (optional, up to 3 times)
Phase overcurrent and zero sequence overcurrent post-acceleration
protection
Inrush current identification
Non-electric quantity protection
Loop closing function
Power distribution function
Intelligent distributed FA function
Local FA segmented S function: delayed forward transmission/backward
transmission
Local FA contact L function: delayed closing of ring network point
Three phase multiple reclosing (optional, up to 3 times)
Fault opening after closing
Voltage loss opening
Zero sequence voltage opening
Inrush current identification
Interrupting current lockout

NRU-230T: The specific functions of the distributed DTU common unit are as follows:
Three remote functions
15-way optoelectronic isolated digital input
12-way AC measurement,2-way DC measurement
6-way output with optional voltage level and optional operation circuit function
Data collection
It supports IEC 104 master station protocol
It supports balanced/unbalanced IEC101 master station protocol
It supports MODBUS protocol
Other customized protocols
Data transmission function
It's able to communicate with superior station, send collected and processed information upwards, and receive control commands from superior station
Timing with superior station
With local maintenance communication interface
Communication interface: RS-232/485, industrial Ethernet; optional fiber optic communication port
Communication channel: It can support various communication forms such as fiber optic, carrier wave, wireless spread spectrum, wireless data transmission
radio, CDMA, GPRS and ADSL, and it can be selected by users as needed




COMPANY PROFILE:

AN HUANG isa modern company of professional design and manufacturer of 3.6kV to 40.5kV Medium Voltage cable accessories, electric components and whole set cabinet Subsidiaries:Anhuang Electric Power Technology Co.,Ltd 
Zhejiang Anhuang Imp & Exp. Co .. Ltd. We provide high quality, low cost products for utility systems worldwide 

Company constantly introducing new technology,newcraft, the product structure constantly improved.Our Professional
production testing equipment.special production technology and professional service team can satisfy the customers demand. 

Our professioal engineers,technicansand managers team always keep our promise:ANHUANG is not only provide cost­-effective high quality products.but also provide high quality, efficient, fast service and technical support to ensure customers' require.

Our company obtained international quality management system ccertification for ISO9001,ISO1401,OHSAS18001.

Our company adhenring to the "safety electricity, forever brilliant " as our enterprise's humanism. Willing to work with you hand in hand to build better future