{"id":129351,"date":"2024-10-19T06:24:50","date_gmt":"2024-10-19T06:24:50","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/ieee-ansi-c57-12-20-2003\/"},"modified":"2024-10-24T23:35:19","modified_gmt":"2024-10-24T23:35:19","slug":"ieee-ansi-c57-12-20-2003","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/ieee\/ieee-ansi-c57-12-20-2003\/","title":{"rendered":"IEEE ANSI C57.12.20 2003"},"content":{"rendered":"

New IEEE Standard – Inactive – Superseded. Superseded by IEEE Std C57.12.20-2005.This standard covers certain electrical, dimensional, and mechanical characteristics and takes into consideration certain safety features of single- and three-phase, 60-Hz, mineral-oil-immersed, self-cooled, overhead-type distribution transformers 500 kVA and smaller, with high voltages 34500 volts and below and low voltages 7970\/13800Y volts and below. Such transformers may include one or more of the following features: 1) High-voltage, overcurrent protection; 2) High-voltage, overvoltage protection. 3) Low-voltage, overcurrent protection; 4) Low-voltage, overvoltage protection<\/p>\n

PDF Catalog<\/h4>\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>\nTitle Page <\/td>\n<\/tr>\n
3<\/td>\nIntroduction
Participants <\/td>\n<\/tr>\n
5<\/td>\nCONTENTS <\/td>\n<\/tr>\n
7<\/td>\n1. Scope
2. References and related publications
2.1 Referenced American National Standards <\/td>\n<\/tr>\n
8<\/td>\n2.2 Related publications
3. Ratings
3.1 Kilovolt-ampere ratings
3.2 Voltage ratings and tap ratings <\/td>\n<\/tr>\n
11<\/td>\n4. Basic lightning impulse insulation level and dielectric test levels
5. Tests
5.1 General
5.2 Dielectric tests <\/td>\n<\/tr>\n
12<\/td>\n6. Construction <\/td>\n<\/tr>\n
14<\/td>\n6.1 Bushings and terminals <\/td>\n<\/tr>\n
26<\/td>\n6.2 Accessory equipment <\/td>\n<\/tr>\n
30<\/td>\n6.3 Polarity, terminal markings, and angular displacements <\/td>\n<\/tr>\n
42<\/td>\n6.4 Oil preservation
6.5 Tanks <\/td>\n<\/tr>\n
43<\/td>\n7. Storage and installation
7.1 Storage
7.2 Insulation
8. Design tests for fault current capability of overhead distribution transformer enclosres
8.1 Objective <\/td>\n<\/tr>\n
44<\/td>\n8.2 Definitions
8.3 General requirements
8.4 Tests
8.5 Test number 1\u2014an arcing fault in an enclosure <\/td>\n<\/tr>\n
45<\/td>\n8.6 Test number 1\u2014for enclosures with internal fusible elements
8.7 Test results <\/td>\n<\/tr>\n
46<\/td>\nAnnex A\u2014Auxiliary mounting devices <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

American National Standard for Transformers – Standard for Overhead Type Distribution Transformers, 500 kVA and Smaller: High Voltage 34500 Volts and Below: Low Voltage, 7970\/13800Y Volts and Below<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
IEEE<\/b><\/a><\/td>\n2003<\/td>\n51<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":129363,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2644],"product_tag":[],"class_list":{"0":"post-129351","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\/129351","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\/129363"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=129351"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=129351"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=129351"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}