“Thyratron” Tubes in relay practice

The application of the grid-controlled gas-filled, or “thyratron,” electronic tube to relay practice, principally for the protection of transmission lines, is considered in this paper. Several different types of these relays are discussed under the 2 principal classifications of “normal” design and high speed relays. This paper by Doctor Wideröe, based upon European practice, should be of considerable interest in this country.