{"id":396809,"date":"2024-10-20T04:26:37","date_gmt":"2024-10-20T04:26:37","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/ieee-c57-131-1995-2\/"},"modified":"2024-10-26T08:14:08","modified_gmt":"2024-10-26T08:14:08","slug":"ieee-c57-131-1995-2","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/ieee\/ieee-c57-131-1995-2\/","title":{"rendered":"IEEE C57.131-1995"},"content":{"rendered":"

New IEEE Standard – Superseded. Electrical and mechanical performance and test requirements for load tap changers installed in power transformers and voltage regulating transformers of all voltage and kVA ratings are covered.<\/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
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. Overview
1.1 Scope
1.2 Purpose
2. References <\/td>\n<\/tr>\n
8<\/td>\n3. Definitions <\/td>\n<\/tr>\n
10<\/td>\n4. Service conditions
5. Rating
5.1 Rated characteristics
5.2 Interrelation between rated through current and rated step voltage
6. Design tests <\/td>\n<\/tr>\n
11<\/td>\n6.1 Temperature rise of contacts
6.2 Switching tests <\/td>\n<\/tr>\n
13<\/td>\n6.3 Short-circuit current test <\/td>\n<\/tr>\n
14<\/td>\n6.4 Transition impedance test <\/td>\n<\/tr>\n
15<\/td>\n6.5 Mechanical tests
6.6 Dielectric tests <\/td>\n<\/tr>\n
19<\/td>\n7. Routine tests
7.1 Mechanical test
7.2 Sequence test
7.3 Auxiliary circuits insulation test
8. Nameplate <\/td>\n<\/tr>\n
20<\/td>\n9. Test report
9.1 Design test report
9.2 Routine test report
10. Motor-drive mechanism
10.1 Temperature of motor-drive mechanism environment
10.2 Permissible variation of auxiliary supply
10.3 Design tests for motor-drive mechanisms <\/td>\n<\/tr>\n
21<\/td>\n10.4 Routine tests for motor-drive mechanism
10.5 Nameplate for motor-drive mechanism <\/td>\n<\/tr>\n
22<\/td>\n10.6 Test report for motor-drive mechanism <\/td>\n<\/tr>\n
23<\/td>\nAnnex A\u2014Switching duty relating to load tap changers with resistor transition <\/td>\n<\/tr>\n
27<\/td>\nAnnex B\u2014Switching duty relating to icad tap changers with reactor transition <\/td>\n<\/tr>\n
36<\/td>\nAnnex C\u2014Method of determining the equivalent temperature of the transition resistor using power pulse currents <\/td>\n<\/tr>\n
37<\/td>\nAnnex D\u2014Simulated circuits for service duty and breaking capacity tests for resistance-type LTCs <\/td>\n<\/tr>\n
40<\/td>\nAnnex E\u2014Tutorial information on LTC application <\/td>\n<\/tr>\n
46<\/td>\nAnnex F\u2014Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

IEEE Standard Requirements for Load Tap Changers<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
IEEE<\/b><\/a><\/td>\n1995<\/td>\n46<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":396810,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2644],"product_tag":[],"class_list":{"0":"post-396809","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\/396809","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\/396810"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=396809"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=396809"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=396809"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}