01458nam 2200373 450 99628102450331620231207090426.01-55937-045-910.1109/IEEESTD.1990.94609(CKB)3780000000090467(NjHacI)993780000000090467(EXLCZ)99378000000009046720231207d1990 uy 0engur|||||||||||txtrdacontentcrdamediacrrdacarrierIEEE Std 857-1990 IEEE Guide for Test Procedures for HVDC Thyristor Valves /Institute of Electrical and Electronics EngineersNew York, NY, USA :IEEE,1990.1 online resource (24 pages) illustrationsInformation and recommendations for the type testing of thyristor valves for high-voltage directcurrent (HVDC) power transmission systems are provided. These tests cover only the principal tests on the valves and do not include tests of auxiliary equipment associated with the valves.IEEE Std 857-1990: IEEE Guide for Test Procedures for HVDC Thyristor ValvesElectric power transmissionThyristorsElectric power transmission.Thyristors.621.319NjHacINjHaclDOCUMENT996281024503316IEEE Std 857-19902573306UNISA