{"id":465574,"date":"2024-10-20T10:41:12","date_gmt":"2024-10-20T10:41:12","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/ieee-c57-12-40-2017-3\/"},"modified":"2024-10-26T19:42:35","modified_gmt":"2024-10-26T19:42:35","slug":"ieee-c57-12-40-2017-3","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/ieee\/ieee-c57-12-40-2017-3\/","title":{"rendered":"IEEE C57.12.40-2017"},"content":{"rendered":"

Revision Standard – Active. This standard is intended for use as a basis for establishing the performance, interchangeability, and safety of the equipment covered and to assist in the proper selection of such equipment.<\/p>\n

PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
1<\/td>\nIEEE Std C57.12.40-2017 Front Cover <\/td>\n<\/tr>\n
2<\/td>\nTitle page <\/td>\n<\/tr>\n
4<\/td>\nImportant Notices and Disclaimers Concerning IEEE Standards Documents <\/td>\n<\/tr>\n
7<\/td>\nParticipants <\/td>\n<\/tr>\n
9<\/td>\nIntroduction <\/td>\n<\/tr>\n
10<\/td>\nContents <\/td>\n<\/tr>\n
11<\/td>\n1. Overview
1.1 Scope
1.2 Purpose
2. Normative references <\/td>\n<\/tr>\n
12<\/td>\n3. Transformer performance requirements
3.1 Kilovolt-ampere ratings <\/td>\n<\/tr>\n
13<\/td>\n3.2 Voltage rating and tap ratings
3.3 Angular displacement <\/td>\n<\/tr>\n
14<\/td>\n3.4 Basic lightning impulse insulation levels (BILs)
3.5 Percent impedance
3.5.1 Tolerance for impedance on a tap
3.6 Audible sound levels
4. Tests <\/td>\n<\/tr>\n
15<\/td>\n5. Construction
5.1 General
5.2 Corrosion resistance
5.2.1 Transformer enclosure <\/td>\n<\/tr>\n
16<\/td>\n5.2.2 Hardware
5.2.3 Other materials
5.2.4 Finish
5.3 Tank
5.3.1 General
5.3.2 Transformer with sub-base
5.3.3 Covers <\/td>\n<\/tr>\n
17<\/td>\n5.3.4 Lifting lugs
5.3.5 Lifting and jacking provisions
5.4 Cooling panels
5.5 Primary switch chamber
5.5.1 Primary switch chamber cover
5.5.1.1 Switch chamber fluid
5.5.2 Primary switch operating positions markings
5.5.3 Operating handle <\/td>\n<\/tr>\n
18<\/td>\n5.5.4 Switch chamber
5.5.5 Primary switch accessory equipment
5.5.5.1 Filling provisions
5.5.5.2 Air test provision
5.5.5.3 Liquid-level indicator
5.5.5.4 Drain provisions
5.6 Secondary network protector throat <\/td>\n<\/tr>\n
19<\/td>\n5.6.1 Secondary throat shipping guard
5.7 Accessory equipment for transformer tanks
5.7.1 Tap changer
5.7.2 Air test provision
5.7.3 Welded-on non-gasketed-type magnetic liquid-level indicator
5.7.4 Dial-type thermometer without alarm contacts <\/td>\n<\/tr>\n
20<\/td>\n5.7.5 Combination drain and bottom filter valve
5.7.6 Filling plug and upper filter press connection
5.7.7 Ground pads
5.8 Dimensions <\/td>\n<\/tr>\n
22<\/td>\n6. Primary disconnect and grounding switch
6.1 General
6.2 Network switch electrical performance requirements
6.2.1 Continuous rating
6.2.2 Short circuit rating
6.2.2.1 Short circuit thermal withstand
6.2.2.2 Peak withstand asymmetric current <\/td>\n<\/tr>\n
23<\/td>\n6.2.2.3 Network switch short circuit test pass\/fail criteria
6.2.2.4 Ground circuit short circuit test
6.2.2.5 Network switch closed position short circuit test <\/td>\n<\/tr>\n
24<\/td>\n6.2.2.6 System short circuit peak value criteria
6.2.2.7 Network switch and chamber safety criteria
6.2.3 Interrupting rating
6.2.3.1 No interrupting rating (dead break)
6.2.3.2 Magnetizing current interrupting rating (mag-break)
6.2.4 Dielectric requirements in closed position <\/td>\n<\/tr>\n
25<\/td>\n6.2.5 Dielectric requirements in open position
6.2.6 Electrical interlock
6.2.6.1 Interlock protection when no interrupting rating is required
6.2.6.2 Interlock protection when magnetizing current interruption is required
6.2.6.3 Interlock testing
6.2.6.4 Operating values <\/td>\n<\/tr>\n
26<\/td>\n6.2.6.5 Interlock assembly
7. Bushings
7.1 Bushings and bushing wells
7.2 Primary bushings between main tank and switch chamber
7.3 Secondary bushings
7.3.1 Secondary flexible connectors <\/td>\n<\/tr>\n
27<\/td>\n7.4 Terminal markings
8. Neutral termination
8.1 Primary neutral
8.2 Secondary neutral <\/td>\n<\/tr>\n
28<\/td>\n9. Nameplate
10. Connections of transformer for shipment by manufacturer <\/td>\n<\/tr>\n
34<\/td>\nAnnex A (informative) Bibliography <\/td>\n<\/tr>\n
35<\/td>\nAnnex B (informative) Coordination of bushing selection and application <\/td>\n<\/tr>\n
37<\/td>\nBack cover <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

IEEE Standard for Network, Three-Phase Transformers, 2500 kVA and Smaller; High Voltage, 34 500 V and Below; Low Voltage, 600 V and Below; Subway and Vault Types (Liquid Immersed)<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
IEEE<\/b><\/a><\/td>\n2017<\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":465583,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2644],"product_tag":[],"class_list":{"0":"post-465574","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-ieee","8":"first","9":"instock","10":"sold-individually","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/465574","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/465583"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=465574"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=465574"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=465574"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}