01678nam 2200349 450 99627943670331620231207100832.00-7381-4371-510.1109/IEEESTD.1981.81455(CKB)3780000000090307(NjHacI)993780000000090307(EXLCZ)99378000000009030720231207d1981 uy 0engur|||||||||||txtrdacontentcrdamediacrrdacarrierIEEE Std 428-1981 IEEE Standard Definitions and Requirements for Thyristor AC Power Controllers /Institute of Electrical and Electronics Engineers[Place of publication not identified] :IEEE,1981.1 online resourceThese recommendations apply to thyristor ac power controllers that are low voltage, power elctronic, industrial class equipment for the control or switching of ac power. Switching, multicycle control and phase control are included. Cycloconverters are excluded. Examples of application include, but are not limited to, industrial oven controls, static motor starters, static relays, etc. This standard is intended to be used in conjunction with IEC Pub 146 (1973) [2] .l Reference is made to the appropriate section of IEC Pub 146 (1973) [2] where required.IEEE Std 428-1981: IEEE Standard Definitions and Requirements for Thyristor AC Power ControllersThyristorsThyristors.621.3137NjHacINjHaclDOCUMENT996279436703316IEEE Std 428-19812575727UNISA