

Power receiving and distribution to Load block substations in Large steel plants : In large steel plants power is generally received at 220kV Switchyard or GIS Substation. It is stepped down to 33kV by step down transformers of approx. capacity of 100MVA. The 33kV Switchgear is normally air insulated or gas insulated type and has many outgoing feeders to load block substations at different load centers of the steel plant. The 33kV cables in the outgoing feeders are laid on cable trays in underground cable tunnels. The load block substations (LBSS) steps down 33kV to utilisation voltage of 6.6kV or 415V through transformers rated 20MVA or so. LT transformers are not rated above 2.5MVA. The entire power receiving and distribution system is controlled by a computerised data feedback and remote control system and it is essential to improve the power factor at the 220kV incomer. Satcon has rich experience in designing of the Main receiving substation and downstream LBSS for large steel plants. Satcon has provided such designs for SAIL Bokaro and IISCO Burnpur.
We hate spam too.