VOLT

Substation ancillary facilities construction in Korea covers reviewing the design and installing the building’s electrical, telecommunications and fire protection systems that keep the substation and its buildings functioning. However well the main plant is built, the substation cannot run safely without proper building earthing, lightning protection, lighting, CCTV and fire detection. This work interlocks with … 더 읽기

HVDC converter station construction in Korea covers installing the converters, control and monitoring systems and ancillary equipment for high-voltage direct current transmission. HVDC converts AC to high-voltage DC for transmission and back to AC at the receiving end, and is used for long-distance and submarine links or to connect separate grids. Converter stations contain equipment … 더 읽기

Electrical energy storage (EES) installation in Korea covers installing batteries, the power conversion system (PCS) and related equipment so that electricity can be stored and supplied reliably. EES — more often called ESS (energy storage system) — stores energy and releases it when needed, for frequency regulation, peak shaving, smoothing renewable output, or replacing UPS … 더 읽기

Other substation equipment works in Korea cover voltage transformers (VT), surge arresters (LA), disconnectors (DS) and air compressors that support stable operation of the main plant, including their inspection. Each item looks minor, but a wrong VT skews metering and protection, an arrester placed too far away gives no protection, and a misaligned disconnector–earthing switch … 더 읽기

Condition monitoring system installation in Korean substations covers the transformer and GIS monitoring units that watch sensor signals from main transformers and gas-insulated switchgear in real time, store and analyze the data, and flag signs of trouble. Substation maintenance has moved from repair after failure, through time-based inspection, to condition-based maintenance that acts when equipment … 더 읽기