Annual Report 2003-2004

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Mass Production of Research Projects PrototypesNRIProduct Title:Distribution RTUProducer: Matn Niroo Co.Research Center: Power Systems Control & DispatchingDepartment: Dispatching & TelemeteryIntroduction- Definition- General Information:Today Distribution Automation is a way for intelligently using advanced technology toincrease the reliability at reduced system operation cost. Automation applied to thedistribution feeders can reduce time required to locating fault, reduce the need for crewto travel to remote switching points, and result in rapid restoration of power supplies toaffected customers. One of the most important parts of distribution automation systemsare RTUs. NRI has designed RTUCAN for ground and poletop distributionsusbstations.Main Characteristics: Construction of one sample for ground and one sample for poletop substation Directly connection to CTs and PTs and measurement of RMS voltage, RMScurrent, active power, reactive power and power factor (Transducerless) IEC 60870-5-101 communication protocol to control center CAN industrial network with CANopen application layer for communicationbetween various intelligent boards Local control implementation facility Possibility of implementing synchronous and asynchronous communicationprotocols such as DNP3.0, ModBus, IEC 60870-5-103140
NRIMass Production of Research Projects PrototypesTechnical Information:Climatic conditions............…..........…....... Air Temperature -10 to +55 °CRelative Humidity 5% to 95%Power Supply......................…............….... 24VDC or 48VDCEnclosure Types.....................................…. IP54 for indoorIP55 for outdoorProcessor Types.......................…...........…. MC68302 Communication Processor68HC912D60 MicrocontrollerI/O Boards..............................................…. DIO and AIDIO Point Number.................................…. 16 DI and 4 DO (Trip/Close)AI Point Number....................................…. 8 AIDC (4-20 mA), 3 CT and 3 PT(or CT)COS Time Tag................................…........ 10 mSecSOE Resolution.................................…...... 1 mSecScan Rate for AIDC.............................…... 0.5 SecSample Rate for AIAC...........................…. 520 samples per cycleInsulation Tests......................................…. IEC 255-5Communication Protocol.......................….. Unbalanced IEC 60870-5-101Number of I/O Boards for Indoor Type.…. 2 DIO and 2 AI (extendable)Number of I/O Boards for Outdoor Type… 1 DIO and 1 AIApplication/Performance/Use:---141
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Annual Report 2003-2004

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