{"id":80365,"date":"2024-10-17T18:43:36","date_gmt":"2024-10-17T18:43:36","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/ieee-c37-081-1981\/"},"modified":"2024-10-24T19:43:15","modified_gmt":"2024-10-24T19:43:15","slug":"ieee-c37-081-1981","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/ieee\/ieee-c37-081-1981\/","title":{"rendered":"IEEE C37.081 1981"},"content":{"rendered":"

New IEEE Standard – Active. This IEEE Standards product is part of the C37 family on Switchgear, Substations and Protective Relays. Guidelines are established for synthetic testing of circuit breakers, as well as test criteria for demonstrating the short-circuit current rating of circuit breakers on a single-phase basis. Criteria for evaluating results are also provided. The standard covers short-circuit current interruption process; basic principles of synthetic testing; synthetic test circuits; requirements for synthetic test methods; parameters, test procedures, and tolerances; short-line fault; multiple loops; circuit breakers equipped with parallel impedance; duty cycle; and test records. You will receive an email from Customer Service with the URL needed to access this publication online.<\/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
6<\/td>\nCONTENTS <\/td>\n<\/tr>\n
9<\/td>\n1. Introduction
1.1 General
1.2 Scope and Purpose <\/td>\n<\/tr>\n
10<\/td>\n2. Definitions
3. References <\/td>\n<\/tr>\n
11<\/td>\n4. Short-Circuit Current Interruption Process
4.1 Circuit Breaker Performance During Interruption; Basic Intervals <\/td>\n<\/tr>\n
12<\/td>\n4.2 State of Interrupting Process
5. Basic Principles of Synthetic Test
5.1 Principles
5.2 Basic Components <\/td>\n<\/tr>\n
13<\/td>\n6. Synthetic Test Circuits
6.1 Current Injection Method <\/td>\n<\/tr>\n
16<\/td>\n6.2 Voltage Injection Method
6.3 Duplicate Circuit Method <\/td>\n<\/tr>\n
17<\/td>\n6.4 Synthetic Test Circuits; Choice of Methods
7. Requirements for Synthetic Test Methods <\/td>\n<\/tr>\n
18<\/td>\n7.1 High-Current Interval
7.2 Interaction Interval
7.3 High-Voltage Interval
7.4 Discussion
8. Parameters, Test Procedures, and Tolerances
8.1 High-Current Interval; Voltage of Current Circuit <\/td>\n<\/tr>\n
20<\/td>\n8.2 Interaction Interval\u2014Current Injection Circuit <\/td>\n<\/tr>\n
21<\/td>\n8.3 HIgh-Voltage Circuit <\/td>\n<\/tr>\n
23<\/td>\n9. Short-Line Fault
10. Multiple Loops
10.1 Method with Single Application of the Voltage Circuit <\/td>\n<\/tr>\n
24<\/td>\n10.2 Method with Multiple Application of Voltage Circuits
11. Circuit Breakers Equipped with Parallel Impedance
11.1 General <\/td>\n<\/tr>\n
25<\/td>\n11.2 Four Part Test Method <\/td>\n<\/tr>\n
26<\/td>\n12. Duty Cycle
12.1 Test Duties for Synthetic Testing <\/td>\n<\/tr>\n
27<\/td>\n12.2 Test Methods <\/td>\n<\/tr>\n
29<\/td>\n13. Test Records
13.1 General
13.2 Current Measurements
13.3 Voltage Measurements <\/td>\n<\/tr>\n
31<\/td>\nAnnex A\u2014Distorted Current; Derivation <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

IEEE Guide for Synthetic Fault Testing of AC High-Voltage Circuit Breakers Rated on a Symmetrical Current Basis<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
IEEE<\/b><\/a><\/td>\n1981<\/td>\n35<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":80366,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2644],"product_tag":[],"class_list":{"0":"post-80365","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\/80365","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\/80366"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=80365"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=80365"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=80365"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}