{"id":111471,"date":"2024-10-18T16:11:37","date_gmt":"2024-10-18T16:11:37","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/ieee-c57-93-2008\/"},"modified":"2024-10-24T22:01:39","modified_gmt":"2024-10-24T22:01:39","slug":"ieee-c57-93-2008","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/ieee\/ieee-c57-93-2008\/","title":{"rendered":"IEEE C57.93 2008"},"content":{"rendered":"

Revision Standard – Active. This guide provides guidance and recommended practices on the installation and maintenance of liquid-immersed power transformers rated 501 kVA and above with secondary voltages of 1000 V and above. This guide covers the entire range of power transformers, including extra high voltage (EHV) transformers. This guide does not cover special transformers such as furnace transformers, rectifier transformers etc. Distinctions are made as required for various MVA ratings, voltage ratings, and types of liquid insulation.<\/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\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 C57.93-2007 <\/td>\n<\/tr>\n
3<\/td>\nIEEE Guide for Installation and Maintenance of Liquid-Immersed Power Transformers <\/td>\n<\/tr>\n
6<\/td>\nIntroduction
Notice to users
Laws and regulations
Copyrights <\/td>\n<\/tr>\n
7<\/td>\nUpdating of IEEE documents
Errata
Interpretations
Patents
Participants <\/td>\n<\/tr>\n
10<\/td>\nCONTENTS <\/td>\n<\/tr>\n
11<\/td>\n1. Scope
2. Normative references <\/td>\n<\/tr>\n
12<\/td>\n3. Liquid-immersed power transformers rated 501 kVA to 10 MVA, or with primary windings less than 69 kV
3.1 General
3.2 Inspection and receipt <\/td>\n<\/tr>\n
13<\/td>\n3.2.1 Station-type configuration
3.2.2 Pad-mount configuration
3.3 Internal inspection <\/td>\n<\/tr>\n
14<\/td>\n3.3.1 General practices for internal inspection <\/td>\n<\/tr>\n
15<\/td>\n3.3.2 Atmospheric conditions
3.3.3 Inspection
3.4 Handling <\/td>\n<\/tr>\n
16<\/td>\n3.4.1 Pad-mount configuration
3.5 Assembly
3.6 Storage <\/td>\n<\/tr>\n
17<\/td>\n3.7 Tests
3.7.1 Pad-mount configuration
3.7.2 Hydrocarbon-based insulating oils (conventional and less flammable)
3.7.3 Other insulating liquids
3.8 Energization <\/td>\n<\/tr>\n
18<\/td>\n3.8.1 Connections
3.8.2 Connecting to bushings
3.8.3 Energization under cold conditions <\/td>\n<\/tr>\n
19<\/td>\n3.9 Maintenance
3.9.1 Routine DGA testing
3.9.2 External inspection External inspection should be carried out regularly and at least four times annually. <\/td>\n<\/tr>\n
20<\/td>\n4. Liquid-immersed power transformers rated 10 MVA and above or with high-voltage windings 69 kV and above
4.1 General
4.2 Shipping
4.2.1 General <\/td>\n<\/tr>\n
21<\/td>\n4.2.2 Shipping terminology
4.2.3 Railroad shipments <\/td>\n<\/tr>\n
23<\/td>\n4.2.4 Truck shipments
4.2.5 Water shipment <\/td>\n<\/tr>\n
24<\/td>\n4.3 Inspection and receipt
4.3.1 External, prior to unloading <\/td>\n<\/tr>\n
25<\/td>\n4.3.2 Internal, prior to unloading
4.4 Internal inspection
4.4.1 Atmospheric conditions
4.4.2 Inspection <\/td>\n<\/tr>\n
26<\/td>\n4.5 Handling
4.5.1 Complete transformer
4.5.2 Lifting with slings <\/td>\n<\/tr>\n
27<\/td>\n4.5.3 Raising with jacks
4.6 Anchorage
4.7 Assembly
4.7.1 General
4.7.2 Bushings <\/td>\n<\/tr>\n
28<\/td>\n4.7.3 Heat exchangers and piping
4.7.4 Other accessories
4.7.5 Controls systems <\/td>\n<\/tr>\n
29<\/td>\n4.8 Vacuum treatment
4.8.1 Preparation <\/td>\n<\/tr>\n
30<\/td>\n4.8.2 Vacuum treatment
4.8.3 Vacuum leakage tests <\/td>\n<\/tr>\n
32<\/td>\n4.8.4 Processing dielectric liquid <\/td>\n<\/tr>\n
33<\/td>\n4.8.5 Vacuum filling <\/td>\n<\/tr>\n
34<\/td>\n4.9 Field drying of insulation
4.9.1 Method 1\u2014Circulating hot oil <\/td>\n<\/tr>\n
35<\/td>\n4.9.2 Method 2\u2014High vacuum (with or without hot oil circulation) <\/td>\n<\/tr>\n
36<\/td>\n4.9.3 Method 3\u2014Hot air
4.9.4 Completion of drying <\/td>\n<\/tr>\n
37<\/td>\n4.10 Reprocessing
4.10.1 Considerations for reprocessing <\/td>\n<\/tr>\n
38<\/td>\n4.10.2 Methodology for reprocessing and absorption <\/td>\n<\/tr>\n
40<\/td>\n4.11 Tests after the transformer has been assembled and filled with dielectric liquid
4.12 Energization <\/td>\n<\/tr>\n
42<\/td>\n4.13 Maintenance
4.13.1 Maintenance intervals for transformers <\/td>\n<\/tr>\n
44<\/td>\n4.13.2 Maintenance intervals for transformer load-tap-changing (LTC) equipment <\/td>\n<\/tr>\n
46<\/td>\n4.13.3 Final \u201cmaintenance\u201d\u009d\u2014disposal
4.14 Storage guidelines <\/td>\n<\/tr>\n
47<\/td>\n4.14.1 Storage of main transformer <\/td>\n<\/tr>\n
49<\/td>\n4.14.2 Storage of transformer accessories and components <\/td>\n<\/tr>\n
50<\/td>\nAnnex A (informative) Bibliography <\/td>\n<\/tr>\n
52<\/td>\nAnnex B (informative) Figures and table <\/td>\n<\/tr>\n
57<\/td>\nAnnex C (informative) Field equipment for oil-filling EHV transformers and determination of insulation dryness
C.1.1 Oil-processing equipment (preferably an integrated trailer unit)
C.1.2 Vacuum pumps
C.1.3 Dry gas
C.1.4 Test equipment <\/td>\n<\/tr>\n
58<\/td>\nC.2.1 Moisture determination of cellulose insulation <\/td>\n<\/tr>\n
60<\/td>\nC.2.2 Moisture determination of transformer oil <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

IEEE Guide for Installation and Maintenance of Liquid-Immersed Power Transformers<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
IEEE<\/b><\/a><\/td>\n2008<\/td>\n61<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":111472,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2644],"product_tag":[],"class_list":{"0":"post-111471","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\/111471","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\/111472"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=111471"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=111471"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=111471"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}