Lor900b Box Transformer Protection and Measurement Device¹

Product Description                                   LOR900B Box Transformer Protection and Measurement Device 1.Product profileTraditional wind or photovoltaic power plants use decentralized equipment such as PLC, lightning protection module, PT, current transmitter, voltage transmitter, etc. to complete functions such as transformer protection, measurement and control, and information upload. Due to the use of multiple auxiliary devices, there are many wiring faults in the entire system, making debugging, operation, and maintenance relatively difficult. Simultaneously involving equipment from multiple manufacturers makes it difficult to coordinate the operation, debugging, and maintenance of the product.The LOR900B box transformer protection and measurement device adopts an integrated design, which integrates multiple functions such as protection and measurement, non electricity protection, communication, and local control. One device can complete tasks that can only be coordinated by multiple devices, while ensuring the same functions such as protection, measurement and control, and information exchange of the transformer, reducing the difficulty of product use and operation and maintenance costs.Centralized monitoringConcentrate and combine the functions of various dispersed devices and instruments, monitor the current, voltage, oil level, oil temperature, and other electrical and non electrical quantities of transformers in real time, and form a fiber optic ring network through dual optical fibers to upload data to the main station.Enhance the protection function of transformersIt integrates the functions of traditional transformer relay protection, such as three-stage overcurrent protection, zero sequence protection, overvoltage and low voltage protection, etc. Its protection function can be switched on and off, making it convenient for users to choose and use.Accident recording and storage functionThe device records the operating status of the transformer, and records SOE events such as protection tripping events, remote control events, switch displacement, and non electric displacement in chronological order. Users can delete them according to their needs (password required) for easy access and inspection.On site operationCompared to traditional monitoring solutions, this device is equipped with a display and keyboard, making it convenient for maintenance and inspection personnel to access monitoring, protection, switch displacement, historical records, and other information of the transformer on site.Easy to maintainThe device adopts an integrated design, with relatively dispersed devices and instrument combination monitoring, reducing the complexity of wiring, simplifying maintenance procedures and costs.  2.Product Classification and Function Introductioncategorymajor function900B-1900B-2900B-3Pure measurement and controlRing network with optical fiberWith optical fiber ring network and communication manager function.telemeteringAc measurement:√√√Three-phase current, three-phase voltage, frequency, power factor, active power, reactive power, active power and reactive power;6 channels of current and 6 channels of voltage√√√DC measurement: 6 channels in total.√√√Standard 2-way 4-20mA (can be increased to 3-way, please specify when ordering).Standard 3-way thermal resistorremote signalling40 channels are opened, of which the first 12 channels are fixed as non-electric protection signal inputs.√√√remote control9-way relay output, used for protection output or ordinary remote control output.√√√protectNon-electric quantity protection:√√√Light gas, heavy gas, high temperature, ultra-high temperature, low oil level of transformer, high oil level, pressure relief valve, high-voltage fuse, phase A, phase B and phase C, non-electric quantity 1 and non-electric quantity 2.General protection:Three-stage current protection, zero-sequence current protection, overvoltage protection and undervoltage protection.remote control9-way relay output, used for protection output or ordinary remote control output.√√√communicationTwo self-healing optical fiber communication interfaces can form an optical fiber ring network. √√2-way Ethernet communication interface√√√1 485 communication port (can be increased to 2 channels, please specify when ordering)√√√agreed-upon stipulationStandard 6-way RS485 interface (it can be increased to 10, please specify when ordering).  √change1-way Ethernet communication interfacerecordRecord the recent 35 accidents and operation records.√√√3.Technical parametertechnical requirementFunctional requirementsApplication parametersAuxiliary working power supplyPower inputAC/DC85-265Vfrequency50Hzpower consumptionNormal operation ≤ 10w; Device action ≤15Wcurrent inputRatIng value in5A(1A)measuring range0~1.2Inmeasurement error≤±0.5%power consumption≤0.5VA/ phaseVoltage inputRated Un100V/270V/690V;measuring range0~1.2Unmeasurement error≤±0.5%power consumption≤0.5VA/ phaseOther measurement accuracyfrequency≤±0.01HzPower factor≤±1.0%Active power/reactive power≤±1%Switch inputport number40 roadInput modePassive contact (with 24V drive)Isolation modePhotoelectric isolation, isolation voltage 2500V V.Contact outputport number9 roadoperating voltageAC250V,8AInput modeidle contactIsolation modePhotoelectric isolation, isolation voltage 2500V V.communication interfacecommunication interface2 optical ports, 2 Ethernet ports, 2 485 ports,Up to 10 485 protocol conversion modules can be configured.Isolation typePhotoelectric isolationBaud rateRS485:1200bps~9600bpsOptical port: 155M, 1310nm, ST interface, single mode ≥20Km. Ethernet: 10M/100M adaptivecommunication protocolModbus/IEC 60870-5-103/104, etc.4.Product installation and schematic diagram4.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.5.Package and ship

OK ! We suggest you detail your product requirements and company information here.
Enter between 20 to 4,000 characters.
Your inquiry content must be between 20 to 4000 characters.