LEADER 01458nam 2200373 450 001 996281024503316 005 20231207090426.0 010 $a1-55937-045-9 024 7 $a10.1109/IEEESTD.1990.94609 035 $a(CKB)3780000000090467 035 $a(NjHacI)993780000000090467 035 $a(EXLCZ)993780000000090467 100 $a20231207d1990 uy 0 101 0 $aeng 135 $aur||||||||||| 181 $ctxt$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 10$aIEEE Std 857-1990 $eIEEE Guide for Test Procedures for HVDC Thyristor Valves /$fInstitute of Electrical and Electronics Engineers 210 1$aNew York, NY, USA :$cIEEE,$d1990. 215 $a1 online resource (24 pages) $cillustrations 330 $aInformation 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. 517 $aIEEE Std 857-1990: IEEE Guide for Test Procedures for HVDC Thyristor Valves 606 $aElectric power transmission 606 $aThyristors 615 0$aElectric power transmission. 615 0$aThyristors. 676 $a621.319 801 0$bNjHacI 801 1$bNjHacl 906 $aDOCUMENT 912 $a996281024503316 996 $aIEEE Std 857-1990$92573306 997 $aUNISA