Alstom T&D wins 400 kV gas-insulated substation orders in India January 20, 2014 | Asia-Pacific News Alstom T&D India won two contracts worth INR2.98 billion for the supply of two 400/220/66 kV gas-insulated substations (GIS) at Wangtoo and Gumma in Himachal Pradesh. This content is available to only paying subscribers. Username or E-mail Password Remember Me Forgot Password