{"id":136508,"date":"2024-10-19T07:52:35","date_gmt":"2024-10-19T07:52:35","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/ieee-c57-12-38-2014\/"},"modified":"2024-10-25T00:02:33","modified_gmt":"2024-10-25T00:02:33","slug":"ieee-c57-12-38-2014","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/ieee\/ieee-c57-12-38-2014\/","title":{"rendered":"IEEE C57.12.38 2014"},"content":{"rendered":"

Revision Standard – Active. Certain electrical, dimensional, and mechanical characteristics are covered in this standard, and certain safety features of single-phase, 60-Hz, mineral-oil-immersed, self-cooled, pad-mounted, compartmental-type distribution transformers are taken into consideration. These transformers are rated 250 kVA and smaller with high voltages of 34 500 GrdY\/19 920 V and below and with low voltages of 480\/240 V and below. These transformers are generally used for step-down purposes from an underground primary cable supply. The connector, bushing, and terminal arrangements for radial or loop feed systems are covered in this standard. The electrical and mechanical requirements of any accessory devices that may be supplied with the transformer are not covered in this standard.<\/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
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
1<\/td>\nIEEE Std C57.12.38\u2122-2014 Front Cover <\/td>\n<\/tr>\n
3<\/td>\nTitle page <\/td>\n<\/tr>\n
5<\/td>\nImportant Notices and Disclaimers Concerning IEEE Standards Documents <\/td>\n<\/tr>\n
8<\/td>\nParticipants <\/td>\n<\/tr>\n
10<\/td>\nIntroduction <\/td>\n<\/tr>\n
11<\/td>\nContents <\/td>\n<\/tr>\n
13<\/td>\nImportant Notice
1. Overview
1.1 Scope <\/td>\n<\/tr>\n
14<\/td>\n1.2 Purpose
2. Normative references
3. Definitions <\/td>\n<\/tr>\n
15<\/td>\n4. Ratings
4.1 Kilovolt-ampere ratings
4.2 Voltage ratings <\/td>\n<\/tr>\n
16<\/td>\n4.3 Tap ratings
5. Basic lightning impulse insulation levels <\/td>\n<\/tr>\n
17<\/td>\n6. Tests
6.1 General
6.2 Dielectric tests
6.3 Chopped wave
7. Construction
7.1 General
7.2 Compartment configuration
7.3 Access
7.4 High-voltage and low-voltage compartments <\/td>\n<\/tr>\n
18<\/td>\n7.5 Pad attachment <\/td>\n<\/tr>\n
26<\/td>\n7.6 Lifting
8. Connectors, bushings, and terminals
8.1 Electrical characteristics
8.2 High-voltage terminals <\/td>\n<\/tr>\n
27<\/td>\n8.3 Low-voltage terminals
8.4 Designations <\/td>\n<\/tr>\n
31<\/td>\n9. Instruction nameplate
9.1 Location
9.2 Information <\/td>\n<\/tr>\n
32<\/td>\n10. Oil preservation
10.1 Tank construction
10.2 Strength
10.3 Pressure testing and oil access
10.4 Tank covers
11. Pressure relief valve <\/td>\n<\/tr>\n
33<\/td>\n12. Grounding and lightning arrester attachment provisions
12.1 Grounding provisions
12.2 Lightning arrester attachment
13. Components for loop primary cable systems
14. Storage
15. Installation
16. Other requirements that may be specified for some applications <\/td>\n<\/tr>\n
34<\/td>\nAnnex A (informative) Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

IEEE Standard for Pad-Mounted-Type, Self-Cooled, Single-Phase Distribution Transformers 250 kVA and Smaller: High Voltage, 34 500 GrdY\/19 920 V and Below; Low Voltage, 480\/240 V 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>\n2014<\/td>\n36<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":136511,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2644],"product_tag":[],"class_list":{"0":"post-136508","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\/136508","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\/136511"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=136508"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=136508"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=136508"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}