{"id":82403,"date":"2024-10-18T03:04:53","date_gmt":"2024-10-18T03:04:53","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/ieee-428-1981\/"},"modified":"2024-10-24T19:50:03","modified_gmt":"2024-10-24T19:50:03","slug":"ieee-428-1981","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/ieee\/ieee-428-1981\/","title":{"rendered":"IEEE 428 1981"},"content":{"rendered":"

New IEEE Standard – Inactive – Withdrawn. These recommendations apply to thyristor ac power controllers that are low voltage, power elctronic, industrial class equipment for the control or switching of ac power. Switching, multicycle control and phase control are included. Cycloconverters are excluded. Examples of application include, but are not limited to, industrial oven controls, static motor starters, static relays, etc.<\/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
9<\/td>\n1 Scope
2 References
3 Definitions
3.1 BasicTerms <\/td>\n<\/tr>\n
10<\/td>\n3.2 Controller Characteristics
Fig1 Linevoltage <\/td>\n<\/tr>\n
11<\/td>\nFig 2 Waveform of AC Power Controller Current <\/td>\n<\/tr>\n
12<\/td>\nOperation Modes <\/td>\n<\/tr>\n
13<\/td>\nFig 3 Typical Examples of Operation Modes <\/td>\n<\/tr>\n
14<\/td>\n3.3 CircuitProperties
3.4 CircuitComponents <\/td>\n<\/tr>\n
15<\/td>\n3.5 Auxiliary <\/td>\n<\/tr>\n
16<\/td>\n3.6 Controller Ratings <\/td>\n<\/tr>\n
17<\/td>\n3.7 Controller Protection
3.8 Semiconductor Characteristics <\/td>\n<\/tr>\n
18<\/td>\nFig 4 Suppression Characteristic
Fig 5 Latching and Holding Current <\/td>\n<\/tr>\n
19<\/td>\n4 ClassificationCode
Basic Control Elements
4.2 Controller Connections
4.3 Loadconnections
5 Serviceconditions <\/td>\n<\/tr>\n
20<\/td>\nNormal Service Conditions
Fig 6 Limited Values of Each Non-Line Frequency Component of the Line Voltage
Fig 7 Periodic Deviations of the Line Voltage <\/td>\n<\/tr>\n
21<\/td>\nSpecial Service Conditions
Fig 8 Maximum Expected Overvoltage Versus Duration of Transient <\/td>\n<\/tr>\n
22<\/td>\n6 Duty Classes
6.1 Classification
Basis of Rated Current Values
Table 2 Standard Duty Classes <\/td>\n<\/tr>\n
23<\/td>\n6.3 Determination of Requirements for Rated Current Values
Table 3 Examples of Load Cycles as Guidance for Choice of Duty Class <\/td>\n<\/tr>\n
24<\/td>\n7 Test
7.1 General
7.2 Test Specifications <\/td>\n<\/tr>\n
25<\/td>\nTable 4 AC Power Controller Test Program Categories <\/td>\n<\/tr>\n
26<\/td>\nAppendix A Examples for Using the Classification Code
Bidirectional Control Single Phase
Bidirectional Control Three Phase
Bidirectional Control Three Phase Two-Line Control
Unidirectional Control Reverse Conducting Three Phase <\/td>\n<\/tr>\n
27<\/td>\nThree Phase Polygon Connection
Bidirectional Control Three Phase Tie Control <\/td>\n<\/tr>\n
28<\/td>\nFig A10 Unidirectional Control Reverse Conducting Three Phase <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

IEEE Standard Definitions and Requirements for Thyristor AC Power Controllers<\/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>\n28<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":82404,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2644],"product_tag":[],"class_list":{"0":"post-82403","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\/82403","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\/82404"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=82403"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=82403"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=82403"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}