Latvian TSO invites tenders for shunt reactors February 5, 2016 | Europe News Latvian transmission system operator (TSO) Augstsprieguma tīkls AS has invited bids for 330 kV, 120 MVAr controlled shunt reactor supply at the Aizkraukle substation. This content is available to only paying subscribers. Username or E-mail Password Remember Me Forgot Password