The Corona & RIV Controlled Connectors are used for 220KV and 400KV systems, self-shielded corona-free connectors are designed so that under fair weather operating conditions, the voltage gradient at the connector surface will be at a level that will not cause corona and resultant radio interference [RIV]. Best & Crompton Engg. Ltd. Manufactures Corona & RIV Controlled Connectors for EHV Applications. Best &
Crompton Engg. Ltd. Supplies pumps, power accessories, plugs, sockets and electrical machines.