{"id":438391,"date":"2024-10-20T08:03:39","date_gmt":"2024-10-20T08:03:39","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/ieee-c37-110-2023-3\/"},"modified":"2024-10-26T15:07:36","modified_gmt":"2024-10-26T15:07:36","slug":"ieee-c37-110-2023-3","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/ieee\/ieee-c37-110-2023-3\/","title":{"rendered":"IEEE C37.110-2023"},"content":{"rendered":"

Revision Standard – Active. The characteristics and classification of current transformers (CTs) used for protective relaying are described. This guide also describes the conditions that cause the CT output to be distorted and the effects on relaying systems of this distortion. The selection and application of CTs for the more common protection schemes are also addressed.<\/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
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
1<\/td>\nIEEE Std C37.110\u2122-2023 Front cover <\/td>\n<\/tr>\n
2<\/td>\nTitle page <\/td>\n<\/tr>\n
4<\/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
12<\/td>\nList of Figures <\/td>\n<\/tr>\n
14<\/td>\nList of Tables <\/td>\n<\/tr>\n
15<\/td>\n1.\u2002Overview
1.1\u2002Scope
1.2\u2002Purpose
1.3\u2002Word usage <\/td>\n<\/tr>\n
16<\/td>\n2.\u2002Normative references
3.\u2002Definitions <\/td>\n<\/tr>\n
18<\/td>\n4.\u2002Current transformer characteristics and classification
4.1\u2002Current transformer equivalent circuit and phasor diagrams <\/td>\n<\/tr>\n
20<\/td>\n4.2\u2002Current transformer secondary excitation characteristics <\/td>\n<\/tr>\n
21<\/td>\n4.3\u2002Knee-point voltage and saturation voltage <\/td>\n<\/tr>\n
23<\/td>\n4.4\u2002Current transformer accuracy <\/td>\n<\/tr>\n
26<\/td>\n4.5\u2002Dynamic characteristics <\/td>\n<\/tr>\n
35<\/td>\n4.6\u2002The effects of remanence <\/td>\n<\/tr>\n
37<\/td>\n4.7\u2002Fundamental transformer equation <\/td>\n<\/tr>\n
38<\/td>\n5.\u2002General application of current transformers
5.1\u2002Current transformer burdens <\/td>\n<\/tr>\n
40<\/td>\n5.2\u2002Ratio selection
5.3\u2002Long-term and short-term thermal ratings <\/td>\n<\/tr>\n
41<\/td>\n5.4\u2002Current transformer secondary output accuracy class voltage
5.5\u2002Connecting current transformers in series <\/td>\n<\/tr>\n
42<\/td>\n5.6\u2002Three-phase connections
5.7\u2002Auxiliary current transformers <\/td>\n<\/tr>\n
44<\/td>\n5.8\u2002Bus configuration <\/td>\n<\/tr>\n
45<\/td>\n5.9\u2002Current transformer location
5.10\u2002Minimizing the effects of current transformer saturation
5.11\u2002Determining current transformer steady-state performance using secondary excitation curves <\/td>\n<\/tr>\n
46<\/td>\n5.12\u2002Unbalanced current measurement <\/td>\n<\/tr>\n
47<\/td>\n5.13\u2002Current transformer performance under geomagnetic-induced current conditions
6.\u2002Current transformers connected to electromechanical relays
6.1\u2002Saturation effects <\/td>\n<\/tr>\n
48<\/td>\n6.2\u2002Applications of current transformers <\/td>\n<\/tr>\n
70<\/td>\n7.\u2002Current transformers connected to static relays
7.1\u2002Saturation effects <\/td>\n<\/tr>\n
71<\/td>\n7.2\u2002Applications of current transformers
8.\u2002Current transformers connected to microprocessor relays
8.1\u2002Saturation effects
8.2\u2002Applications of current transformers <\/td>\n<\/tr>\n
77<\/td>\nAnnex A (informative) IEC standards on current transformers
A.1\u2002Accuracy of the IEC Class P current transformers
A.2\u2002Accuracy of the IEC Class TP current transformers <\/td>\n<\/tr>\n
78<\/td>\nA.3\u2002The factor of construction is determined from the ratio <\/td>\n<\/tr>\n
80<\/td>\nAnnex B (informative) List of ANSI C accuracy class values and burdens <\/td>\n<\/tr>\n
81<\/td>\nAnnex C (informative) Remanent flux in current transformers <\/td>\n<\/tr>\n
82<\/td>\nAnnex D (informative) Optical current sensor systems
D.1\u2002Why optical current sensors are needed
D.2\u2002Components of optical current sensor systems
D.3\u2002Why optical sensor systems are used <\/td>\n<\/tr>\n
83<\/td>\nD.4\u2002Conventional transformer characteristics and issues that are \u201cnot applicable\u201d in optical current sensors
D.5\u2002Considerations in the application of optical current sensor systems <\/td>\n<\/tr>\n
85<\/td>\nAnnex E (informative) Bibliography <\/td>\n<\/tr>\n
89<\/td>\nBack cover <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

IEEE Guide for the Application of Current Transformers Used for Protective Relaying Purposes (Published)<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
IEEE<\/b><\/a><\/td>\n2023<\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":438399,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2644],"product_tag":[],"class_list":{"0":"post-438391","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\/438391","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\/438399"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=438391"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=438391"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=438391"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}