LEADER 01388nam  2200349   450 
001 9910136432603321
005 20231206214115.0
010   $a1-5044-0338-X
024 7 $a10.1109/IEEESTD.1972.7419180
035   $a(CKB)3710000000601317
035   $a(NjHacI)993710000000601317
035   $a(EXLCZ)993710000000601317
100   $a20231206d1972      uy             0
101 0 $aeng
135   $aur|||||||||||
181   $ctxt$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 10$aIEEE Std 421-1972 $eIEEE Standard Criteria and Definitions for Excitation Systems for Synchronous Machines /$fInstitute of Electrical and Electronics Engineers
210  1$aNew York, N.Y. :$cIEEE,$d1972.
215   $a1 online resource (20 pages) $cillustrations
330   $aThis document presents criteria, essential elements, and new and revised definitions for excitation systems as applied to electric utility synchronous machines with particular emphasis given to the application of solid-state devices and to terminology common to feedback control systems.
517   $aIEEE Std 421-1972
606   $aElectric machinery, Synchronous
615  0$aElectric machinery, Synchronous.
676   $a621.3133
801  0$bNjHacI
801  1$bNjHacl
906   $aDOCUMENT
912   $a9910136432603321
996   $aIEEE Std 421-1972$93646826
997   $aUNINA