01976nam 2200385 450 99627975030331620231206173959.01-5044-0675-30-7381-3956-410.1109/IEEESTD.1977.120246(CKB)3780000000089207(NjHacI)993780000000089207(EXLCZ)99378000000008920720231206d1977 uy 0engur|||||||||||txtrdacontentcrdamediacrrdacarrierANSI/IEEE Std 56-1977 IEEE guide for insulation maintenance of large alternating-current rotating machinery (10 000 kVA and larger) /Institute of Electrical and Electronics EngineersPiscataway, New Jersey :IEEE,1977.1 online resourceThe purpose of this IEEE guide is to present information necessary to permit an effective evaluation of the insulation systems of large alternating-current rotating electrical machines. Such an evaluation can serve as a guide to the degree of maintenance or replacement which might be deemed necessary, and also offer some indication of the future service reliability of the equipment under consideration. The guide is intended to apply in general to large alternating-current rotating electrical machines rated at 10000 kVA or more, and operating at voltages of 6000 V and above.56-1977 - IEEE Guide for Insulation Maintenance of Large Alternating-Current Rotating Machinery ANSI/IEEE Std 56-1977ANSI/IEEE Std 56-1977: IEEE Guide for Insulation Maintenance of Large Alternating-Current Rotating Machinery (10,000 kVA and Larger)Electric insulators and insulationElectric insulators and insulation.621.31937NjHacINjHaclDOCUMENT996279750303316ANSI2072434UNISA