Power Plant Automation Retrofit Darkhan Thermal Power Plant is a state owned 48MW coal power plant in Mongolia. It provides electricity to the 100,000 residence of Darkhan city and Selenge province. The plant was built in 1963 and consists of four 12MW turbines. Due to its aging, a step by step modernization process is ongoing since 2012. The objective of the renovation is improving its control, as well as increase the total power capacity to 83 MW. THE PROBLEM The existing fault recording and automation system is based on Russian equipment that was commissioned in 2002. Additional equipment was required to support the increased capacity, and it was not possible to add it to the existing system due to its age. The user specified new needs including: 1. Distributed fault registration system (separated IED’s) 2. Monitoring and dispatch system with 1-second data update time 3. High accuracy Energy Metering System based on same platform 4. Possibility for analyze fault events waveforms from separate devices on one screen 5. SNTP time synchronization between different IED’s 6. Flexible hardware and software solution, with different modules, screens and language

THE SOLUTION MSEL (http://www.msel.mn/), SATEC's partner in Mongolia and one of the well known company in the Mongolian energy market,who is providing engineering services for 0.4-110kV substations and distribution facilities as well as supplying relay protection, metering, testing equipment and HMI, SCADA system to ensure the reliable operation of energy system under high quality work standards , and focusing on substation and power plant automation. Based on the extensive experience of the well qualified team, MSEL designed and built a first modern system in Mongolia for fault registration,...

On top of the highest energy accuracy standard Class 0.2S, the PM180 provides the highest accuracy standard for measurement and power quality - IEC61000-4-30 Class A. The complete power quality monitoring, based on EN 50160 standard, allows detection of power quality issues and correcting them before they affect the system reliability. SEDMAX collect the entire real-time measurements, I/O states, waveforms and logs from PM180 via Modbus as well as diagnostic data from server, Ethernet switches and SEL-2488 via SNMP and ICMP. It store data and provide flexible tools for data management and processing....

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