{"id":81359,"date":"2024-10-17T18:53:56","date_gmt":"2024-10-17T18:53:56","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/ieee-c57-12-44-2006\/"},"modified":"2024-10-24T19:46:30","modified_gmt":"2024-10-24T19:46:30","slug":"ieee-c57-12-44-2006","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/ieee\/ieee-c57-12-44-2006\/","title":{"rendered":"IEEE C57.12.44 2006"},"content":{"rendered":"

New IEEE Standard – Active. Revision of IEEE Std C57.12.44-2000 The performance, electrical and mechanical interchangeability, and the safety of the equipment are covered. The proper selection of such equipment is established as a basis for use in this standard. Certain electrical, dimensional, and mechanical characteristics are described; and certain safety features of three-phase, 60 Hz, low-voltage (600 V and below) network protectors are taken into consideration. This equipment is used for automatically connecting and disconnecting a network transformer from a secondary spot or grid network.<\/p>\n

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PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
3<\/td>\nIEEE Standard Requirements for Secondary Network Protectors <\/td>\n<\/tr>\n
6<\/td>\nIntroduction
Notice to users
Errata
Interpretations
Patents <\/td>\n<\/tr>\n
7<\/td>\nParticipants <\/td>\n<\/tr>\n
9<\/td>\nContents <\/td>\n<\/tr>\n
11<\/td>\nIEEE Standard Requirements for Secondary Network Protectors
1. Overview
1.1 Scope
1.2 Purpose
1.3 Word usage
2. Normative references <\/td>\n<\/tr>\n
12<\/td>\n3. Definitions <\/td>\n<\/tr>\n
13<\/td>\n4. Service conditions
4.1 Usual service conditions
4.1.1 General
4.1.2 Temperature
4.1.3 Altitude <\/td>\n<\/tr>\n
14<\/td>\n4.1.4 Generation
4.2 Unusual service conditions
4.2.1 General
4.2.2 Unusual temperature and altitude conditions
4.2.3 Insulation at high altitude
5. Design tests
5.1 Continuous current thermal test <\/td>\n<\/tr>\n
15<\/td>\n5.1.1 Test conditions
5.1.2 Test duration <\/td>\n<\/tr>\n
16<\/td>\n5.1.3 Ambient temperature
5.1.4 Performance <\/td>\n<\/tr>\n
17<\/td>\n5.2 Electrical tests
5.2.1 Interrupting rating test
5.2.2 Test conditions
5.2.3 Short-time current test <\/td>\n<\/tr>\n
18<\/td>\n5.2.4 Fault close test
5.2.5 Fuse interruption test for non-silver-sand fuses <\/td>\n<\/tr>\n
19<\/td>\n5.2.6 Fuse interruption test for silver-sand fuses <\/td>\n<\/tr>\n
20<\/td>\n5.3 Mechanical endurance test
5.3.1 Test conditions
5.3.2 Operating duty
5.3.3 Rate of operation
5.3.4 Performance <\/td>\n<\/tr>\n
21<\/td>\n6. Production tests
6.1 Operational tests
6.1.1 Electrical operations <\/td>\n<\/tr>\n
22<\/td>\n6.1.2 Performance
6.2 Dielectric tests <\/td>\n<\/tr>\n
23<\/td>\n6.2.1 Tests conditions
6.2.2 Performance
6.3 Insulation resistance tests
6.3.1 Test conditions <\/td>\n<\/tr>\n
24<\/td>\n6.3.2 Performance
6.4 Current path resistance tests
6.4.1 Test conditions
6.4.2 Performance
6.5 Mechanical tests
6.5.1 Mechanical fit test conditions and performance
6.5.2 Submersible seal integrity test conditions and performance <\/td>\n<\/tr>\n
25<\/td>\n7. Relay characteristics
7.1 General
7.2 Automatic close functions
7.2.1 Dead network close function
7.2.2 Normal close function
7.2.3 Closing adjustment <\/td>\n<\/tr>\n
26<\/td>\n7.3 Automatic trip functions
7.3.1 Sensitive trip function
7.3.2 Time delay trip function
7.3.3 Insensitive trip function <\/td>\n<\/tr>\n
27<\/td>\n7.3.4 Watt-var trip
7.4 Tripping adjustment <\/td>\n<\/tr>\n
28<\/td>\n8. Fuses and fuse mountings
8.1 Fuse provisions
8.2 Functional performance specifications <\/td>\n<\/tr>\n
29<\/td>\n8.3 Fuse types
9. Rating requirements
9.1 Nameplates <\/td>\n<\/tr>\n
30<\/td>\n9.2 Interrupting rating <\/td>\n<\/tr>\n
31<\/td>\n9.3 AC voltage ratings <\/td>\n<\/tr>\n
32<\/td>\n9.4 Dielectric test voltage
9.5 Control voltage
9.6 Closing voltage <\/td>\n<\/tr>\n
33<\/td>\n9.7 Tripping currents
10. Mechanical performance specifications
10.1 Submersible type
10.2 Nonsubmersible type <\/td>\n<\/tr>\n
34<\/td>\n10.3 Open-frame type
10.4 Mounting application
10.5 General requirements
10.5.1 Network protector barriers
10.5.2 Studs, bolts, and screws
10.5.3 Inspection windows
10.5.4 Operating handle <\/td>\n<\/tr>\n
35<\/td>\n10.5.5 Lifting facilities
10.5.6 Rollout rails <\/td>\n<\/tr>\n
36<\/td>\n10.5.7 Special tools
10.5.8 Ground pad
10.5.9 Materials
10.5.10 Nameplates
10.5.11 Cover plate
10.5.12 Internal main bus
10.5.13 Secondary disconnect
10.5.14 Spare auxiliary contacts <\/td>\n<\/tr>\n
37<\/td>\n10.5.15 Remote monitoring provisions
10.5.16 Operation counter
10.5.17 Contact position indicator
10.5.18 Spring position indicator (stored-energy breakers only)
10.5.19 Insulating material
10.5.20 Grounding
10.6 Finish
11. Other requirements
11.1 Submersible enclosure <\/td>\n<\/tr>\n
38<\/td>\n11.2 Nonsubmersible enclosure
11.2.1 Ventilated enclosure
11.2.2 Semi dust-tight enclosure
11.2.3 Drip-tight enclosure
11.2.4 Drip-tight\/semi dust-tight enclosure
11.3 Open frame enclosure
11.4 Mounting configurations
11.4.1 Transformer mounted enclosure <\/td>\n<\/tr>\n
39<\/td>\n11.4.2 Separately mounted enclosure
11.5 Network-side terminations
11.5.1 Stud-type terminals <\/td>\n<\/tr>\n
40<\/td>\n11.5.2 Spade-type terminals <\/td>\n<\/tr>\n
41<\/td>\nAnnex A (normative) Classification of insulating materials
A.1 General
A.2 Insulating materials <\/td>\n<\/tr>\n
42<\/td>\nA.3 Insulation systems <\/td>\n<\/tr>\n
43<\/td>\nA.4 Insulation service stresses <\/td>\n<\/tr>\n
45<\/td>\nAnnex B (informative) Network fuse application
B.1 General
B.2 Protector fuse <\/td>\n<\/tr>\n
46<\/td>\nB.3 Types of fuses <\/td>\n<\/tr>\n
54<\/td>\nB.4 History <\/td>\n<\/tr>\n
55<\/td>\nAnnex C (informative) Pumping
C.1 General
C.2 Causes
C.3 Effects of pumping <\/td>\n<\/tr>\n
56<\/td>\nAnnex D (informative) The unprotected zone in network protectors <\/td>\n<\/tr>\n
57<\/td>\nAnnex E (informative) Contact surface oxidation <\/td>\n<\/tr>\n
58<\/td>\nAnnex F (informative) Reverse current sensitivity
F.1 General
F.2 Reverse power levels <\/td>\n<\/tr>\n
59<\/td>\nF.3 Relay settings <\/td>\n<\/tr>\n
61<\/td>\nAnnex G (informative) Network protector enclosures <\/td>\n<\/tr>\n
62<\/td>\nAnnex H (informative) Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

IEEE Standard Requirements for Secondary Network Protectors<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
IEEE<\/b><\/a><\/td>\n2006<\/td>\n63<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":81360,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2644],"product_tag":[],"class_list":{"0":"post-81359","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\/81359","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\/81360"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=81359"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=81359"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=81359"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}