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Siemens to implement frequency control technology for NTPC Dadri

Siemens to implement frequency control technology for NTPC Dadri
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Siemens Ltd has commissioned IndiaÂ’s first condensate throttling-based Primary Frequency Control Solution at National Capital Power Station (NCPS), NTPC Dadri (Stage 2, Unit 6). Condensate throttling, based on SiemensÂ’ SPPA-P3000 Frequency Control Solution, is used for immediate generation of additional power for frequency control. 

The principle of condensate throttling is that the turbine control system opens the governor valves to utilise the reserve steam storage capacity of the boiler. When additional power is needed, the condensate flow is reduced, usually by throttling of the condensate control valve. In the current regime of renewable energy integration into the power grid, this technology provides flexibility to the thermal power plant unit.

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