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Low Voltage Outgoing Line Monitoring Unit - Terminal Module1
Meter for ElectricityElectricityTerminal Module
Nanjing Linkelec Technology Co., Ltd.
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Product Description Three phase intelligent color screen terminal electric meter 1.Product profileThe low-voltage outgoing line monitoring unit consists of a terminal module and an expansion module. The terminal module realizes monitoring of one outgoing line, and other outgoing lines can be configured with expansion modules for monitoring. One terminal module can be combined with up to eight expansion modules to achieve monitoring of nine low-voltage outgoing lines. 2.Technical indicatorsperformance parameterPerformance indexaccuracy class Voltage: ≤ 0.5%; Current: ≤ 0.5%; Active power: ≤ 0.5%; Reactive power: ≤ 1%; Power factor: ≤ 0.5%; Apparent workRate: ≤ 1.0%; Electricity quantity: ≤ 0.5%; Frequency: ≤± 0.02HzConnection mode Three-phase four-wire/three-phase three-wireinput voltagerated voltageAC220Vfrequency range45~65HZmeasuring range154V~286Vincoming currentrated currentAC 5Afrequency range45~65HZmeasuring range20mA~6Aworking power supplyrated voltageAC 220V (allowable deviation -20%~+20%)Power consumptionNot more than 3W, 5VASwitch inputInput formDry node (internal DC24V)communication interfaceInterface formRS485, carrier moduleprotocolModbus,DL/T645environmental conditionsAmbient temperature and humidityTemperature range:-40 ~+70oCMaximum temperature change rate: 1.0oC/ minRelative humidity: 10 ~ 100%Maximum absolute humidity: 35g/moperational environmentThere is no explosion danger, corrosive gas and conductive dust, serious mold and violent vibration shock source.storage temperature -40oC~80oCClock accuracyDaily error≤0.5 seconds/day, supporting communication timing.3.Selection specificationsfunctional moduleserial numberFunction pointFunction point descriptionTerminal moduleLON823Real-time measurement1phase voltagePhase voltage: Ua, Ub, Uc√2line voltageLine voltage: Uab, Ubc, Uca√3Voltage sequence componentVoltage sequence components: U1, U2, U0√4phase currentPhase current: Ia, Ib, Ic√5active powerActive power: Pa, Pb, Pc, p.√6wattless powerReactive power: Qa, Qb, Qc and Q.√7apparent powerApparent power: Sa, Sb, Sc, s√8Power factorPower factor: Pfa, Pfb, Pfc, Pf√9phase positionVoltage/current: ∠Ua, ∠Ub, ∠Uc, ∠Ia, ∠Ib, ∠Ic√10frequencySystem frequency: f√Electricity measurement11Active powerSplit-phase and combined-phase bidirectional active energy√12Reactive powerSplit-phase and combined-phase bidirectional reactive power√13Apparent electric degreeSplit-phase and close-phase are in electric energy.√freeze14Load recordRecord once every 5 minutes for 7 days, and cover it circularly.○remote signalling15Drive in and outWith open remote communication status.√clock16clockAccurate clock with hardware√Switch input17Switch input4-way switch active node input○communication interface18RS485 communicationStandard 1 RS485 communication, supporting MODBUS-RTU protocol; Support online upgrade program through RS485 interface.√19Carrier communicationSupport a single-phase carrier module interface (DL/T645 protocol)√20Debugging interfaceOne RS485 interface for product debugging.○21Bluetooth communicationBluetooth 4.2 communication, which can be used for data transmission.○Current transformer22Support external current transformerConfigure 250/5A, 400/5A and 630A/5A transformers.√Note: "√" marks this function as standard, and "○" indicates that this function is optional. 4.Product installation and schematic diagram5.About our service * We could provide 7* 24-hour phone call after-sales service. * We provide a 2-year guarantee time and will change the meter for you within 1 year if there's something wrong with the product. Except for natural disasters or man-made reasons.* Recommend the most advanced application technology and management model in the industry to customers, and provide customers with detailed solutions.6.Package and ship
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