{"id":147065,"date":"2024-10-19T08:37:57","date_gmt":"2024-10-19T08:37:57","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/ieee-251-1984\/"},"modified":"2024-10-25T00:54:05","modified_gmt":"2024-10-25T00:54:05","slug":"ieee-251-1984","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/ieee\/ieee-251-1984\/","title":{"rendered":"IEEE 251 1984"},"content":{"rendered":"

Revision Standard – Inactive – Withdrawn. This test procedure covers instructions for conducting and reporting the more generally applicable and acceptable tests to determine the performance characteristics of direct-current tachometer generators. Direct-current tachometer generators are used for a variety of indicating and control purposes and a characteristic of primary importance in one application may be of little or no importance in another. This procedure shall not be interpreted or construed as requiring the making of all or any of the tests herein in any given transaction.<\/p>\n

PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
6<\/td>\n1 Scope and References
1.1 Scope
1.2 References
2 Tests\/General
2.1 NormalTest
2.2 RoutineTests <\/td>\n<\/tr>\n
7<\/td>\n2.3 DesignTests
3 TestEquipment
3.1 Voltmeters
3.2 Ammeters
3.3 Tachometer Generator Drive <\/td>\n<\/tr>\n
8<\/td>\n3.4 FieldPowerSupply
3.5 Resistors
4 Preliminary Tests
4.1 Reference Conditions
4.2 Winding-Resistance Measurements <\/td>\n<\/tr>\n
9<\/td>\n4.3 Brush Setting
4.4 Insulation Resistance
4.5 Dielectric Tests <\/td>\n<\/tr>\n
10<\/td>\n5 Performance Determination
5.1 Voltage
Deviation from Linearity <\/td>\n<\/tr>\n
11<\/td>\n5.3 Voltage Regulation
5.4 Reversing Error
5.5 Ripple Voltage
5.6 Voltage Stability-Short-Time <\/td>\n<\/tr>\n
12<\/td>\n5.7 Voltage Stability-Long-Time
Ambient Temperature Factor <\/td>\n<\/tr>\n
13<\/td>\nExternal Magnetic Field Factor
5.10 Commutation
Temperature Tests
6.1 Purpose
6.2 General Instructions
6.3 Methods of Temperature Measurement <\/td>\n<\/tr>\n
14<\/td>\n6.4 MethodofTest
6.5 Temperature Rise
7 Miscellaneous Tests
Friction and Drive Torque
7.2 Armature Inductance
7.3 Audio-Noise Test <\/td>\n<\/tr>\n
15<\/td>\n7.4 Radio-Noise Test <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

IEEE Guide: Test Procedures for Direct-Current Tachometer Generators<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
IEEE<\/b><\/a><\/td>\n1984<\/td>\n15<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":147066,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2644],"product_tag":[],"class_list":{"0":"post-147065","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\/147065","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\/147066"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=147065"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=147065"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=147065"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}