Gas Insulated Switchgear Substation Pdf

315 mva 400 220 33 kv three phase auto transformers gas insulated switchgear type elk 3 at 400 kv and elk 10 at 220 kv from abb switzerland substation commissioned in 2007.

Gas insulated switchgear substation pdf.

Wbsetcl tech spec rev 1 page 1 of 33 gas insulated switchgear gas insulated switchgear march 2015 engineering department west bengal state electricity transmission company limited regd. Very fast transient over voltage vfto is a unique electromagnetic transient phenomenon occurring in gas insulated substation gis which determines the insulation level of the gis above 330 kv. Vidyutbhawan block dj sector ii bidhannagar kolkata 700091. 400 kv 220 kv substation with 5 bays at 400 kv and 7 bays at 220 kv 2 nos.

Up to 40 5kv and 200kv bil up to 5000a sbb or 3150a dbb up to 40ka 3 sec 3 phase encapsulated modular arc resistant design all gas compartments are fully segregated no gas. Gis there are two terms presented in iec gas insulated switchgear and ieee gas insulated substations. Several crucial terms are for better understanding of the presented material. Located in the heart of zurich 15 meters under ground in a beautifully designed building it replaces an outdoor air insulated switchgear ais substation built in 1949.

Gas insulated substations high system reliability highflexibilityofitssolutions modularityexpandability gas insulated substations high flexibility of its solutions modularity expandability compact space saving solutions innovative solutions devices switchgears low life cycle costs reliable and competent partners operator manufacturer. The 170 24 kv substation deploys the first break through gis with eco efficient gas mixture with a global warming potential gwp of less than 1 as an alternative to sf 6 gas. Wbsetcl tech spec rev 2 page 1 of 33 gas insulated switchgear gas insulated switchgear september 2017 engineering department west bengal state electricity transmission company limited regd. Gas insulated substation definitions and basics definitions this course is based on terms used in ieee and iec regulations.