Revision Standard – Active. Small power transformers have become a significant element in distribution systems supplying large commercial customers like major resort hotels and site-specific industrial customers that desire the local utility to own, operate, and maintain the serving transformer. These transformers can range in sizes from 112.5 kVA to 10 000 kVA with primary voltages at 69 000 V and below and secondary voltages from 34 500 V to 120 V. Transformers in this standard are generally for larger distribution customers often with special voltages or installation requirements like convention centers with large chiller plants and extensive exhibit space. There is often a desire to serve these transformers from underground systems using side-mounted bushings on the primary. This standard seeks to define the small power transformer that is applied as more than just a limited-scope version of the power transformers covered by IEEE Std C57.12.10\u2122 and as more than a large distribution-class transformer covered by IEEE Std C57.12.34\u2122.<\/p>\n
| PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
|---|---|---|---|---|---|---|---|
| 1<\/td>\n | IEEE Std C57.12.36\u2122-2017 Front cover <\/td>\n<\/tr>\n | ||||||
| 2<\/td>\n | Title page <\/td>\n<\/tr>\n | ||||||
| 4<\/td>\n | Important Notices and Disclaimers Concerning IEEE Standards Documents <\/td>\n<\/tr>\n | ||||||
| 7<\/td>\n | Participants <\/td>\n<\/tr>\n | ||||||
| 9<\/td>\n | Introduction <\/td>\n<\/tr>\n | ||||||
| 10<\/td>\n | Contents <\/td>\n<\/tr>\n | ||||||
| 11<\/td>\n | 1.\u2002Overview 1.1\u2002Introduction 1.2\u2002Scope 1.3\u2002Mandatory requirements <\/td>\n<\/tr>\n | ||||||
| 12<\/td>\n | 2.\u2002Normative references <\/td>\n<\/tr>\n | ||||||
| 13<\/td>\n | 3.\u2002Definitions 4.\u2002Rating data 4.1\u2002Usual service conditions 4.2\u2002Kilovolt-ampere ratings <\/td>\n<\/tr>\n | ||||||
| 14<\/td>\n | 4.3\u2002Voltage applications 4.4\u2002Standard levels for basic lightning impulse insulation <\/td>\n<\/tr>\n | ||||||
| 15<\/td>\n | 4.5\u2002Taps 4.6\u2002Impedance voltage <\/td>\n<\/tr>\n | ||||||
| 16<\/td>\n | 4.7\u2002Routine tests 4.8\u2002Dielectric test levels 5.\u2002Construction 5.1\u2002Accessories <\/td>\n<\/tr>\n | ||||||
| 21<\/td>\n | 5.2\u2002Bushings <\/td>\n<\/tr>\n | ||||||
| 23<\/td>\n | 5.3\u2002Enclosures <\/td>\n<\/tr>\n | ||||||
| 24<\/td>\n | 5.4\u2002Other neutral terminations <\/td>\n<\/tr>\n | ||||||
| 25<\/td>\n | 5.5\u2002Lifting, moving, and jacking facilities <\/td>\n<\/tr>\n | ||||||
| 26<\/td>\n | 5.6\u2002Nameplate <\/td>\n<\/tr>\n | ||||||
| 27<\/td>\n | 5.7\u2002Ground provisions 5.8\u2002Polarity, angular displacement, and terminal markings <\/td>\n<\/tr>\n | ||||||
| 28<\/td>\n | 5.9\u2002Liquid preservation <\/td>\n<\/tr>\n | ||||||
| 29<\/td>\n | 5.10\u2002Tanks 5.11\u2002Auxiliary cooling equipment <\/td>\n<\/tr>\n | ||||||
| 31<\/td>\n | 5.12\u2002Power supply for transformer auxiliary equipment and controls 5.13\u2002Bushing-type current transformers <\/td>\n<\/tr>\n | ||||||
| 32<\/td>\n | 5.14\u2002Surge arresters 5.15\u2002Insulating liquid 5.16\u2002Loading <\/td>\n<\/tr>\n | ||||||
| 33<\/td>\n | 6.\u2002Installation and storage <\/td>\n<\/tr>\n | ||||||
| 34<\/td>\n | Annex\u00a0A (informative) Substation equipment coordination for secondary unit substations <\/td>\n<\/tr>\n | ||||||
| 38<\/td>\n | Annex\u00a0B (informative) Bibliography <\/td>\n<\/tr>\n | ||||||
| 39<\/td>\n | Back cover <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" IEEE Standard Requirements for Liquid-Immersed Distribution Substation Transformers<\/b><\/p>\n |