On-line DGA System for Transformer HiCMS TM-200 The HiCMS TM200 is an on-line DGA monitoring system for assessing the condition of transformers in the site. DGA (dissolved gas analysis) of transformer oil is the best indicator of a transformer’s overall condition. The HiCMS TM200 base on Hyosung’s new analysis algorithm provides the most reliable DGA condition assessment available. Features Prevent Transformer Failures Lower Costs Through CBM* Continuous trending of key fault gases gives early and immediate Only comprehensive on-line monitoring can provide the information notification of incipient faults that can lead to transformer failure. that enables continuous transformer condition assessment. It provides the important and timely information you need to Comprehensive analysis of key fault gases and other key maintain the reliability of your transformer fleet. parameters enables intelligent management of transformers, extending their useful life. Minimal Maintenance CBM* (Condition Based Maintenance) (If Transfix used) No carrier gases or calibration gases required. It reduces running costs and site visits. Gas Analysis Also when installation performed, no outages required which Oil sampling is continuous and gas analysis intervals are reduces expense and inconvenience for user. user-selectable from 1 hours to 4 weeks. All data is date and time stamped and up to two years of data is stored in memory. Communications Automatic schedule acceleration when rate of change alarm limit Two separate channels for remote communications, local USB isexceeded(Default:1hr).connection and Ethernet connection provided. Communication protocols supported include MODBUS® , MODBUS/TCP, DNP3.0, DGA Software ® i IEC61850 . Modules available for connection via RS232, RS485, H CMS TM 2000 software and services offer simple yet powerful Ethernet, PSTN modem and GSM or CDMA wireless modems. analytical tools for transformer monitor control, data presentation and analysis as well as management functions. The application Hyosung DGA Algorithms software, included with each transformer monitor product, is used •AdvancedGasRatioMethod:Optimumgasratiosselectedforto locally or remotely control, retrieve, store, and view data. improvement of diagnosis accuracy and Optimum gas-ratio combinations for improvement of diagnosis accuracy. DGA Algorithm Accuracy •Advanced%GasMethods:Faultdiagnosisbyfour%gases Regarding IEC TC 10 / IEEE Data 122 Case, andFaultdiagnosisbytwooffour%gases. Test results of Hyosung and International DGA algorithms are below Diagnostic Unresolved Wrong Accuracy Algorithm Diagnosis (%) Diagnosis (%) Rates (%) Hyosung Hyosung 0.0 3.2 96.8 Gas ratio Key Gas 3.2 38.7 58.1 Dornenburg 15.1 1.1 83.9 methods Rogers 37.6 17.2 45.2 IEC 17.2 16.1 66.7 Duval Triangle 0.0 12.9 87.1 Diag. Code (Japan) 8.6 48.4 43.0 Hyosung % gas methods I 16 17 HiCMS Hyosung intelligent Condition Monitoring System