IEEE C57.12.44-2014

$62.83

IEEE Standard Requirements for Secondary Network Protectors

Published By	Publication Date	Number of Pages
IEEE	2014	65

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Description

Revision Standard – Active. 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.

PDF Catalog

PDF Pages	PDF Title
1	IEEE Std C57.12.44-2014 Front Cover
3	Title Page
4	Abstract/Keywords
5	Important Notices and Disclaimers Concerning IEEE Standards Documents
8	Participants
10	Introduction
11	Contents
13	IMPORTANT NOTICE 1. Overview 1.1 Scope 1.2 Purpose 1.3 Word usage
14	2. Normative references 3. Definitions
16	4. Service conditions 4.1 Usual service conditions 4.2 Unusual service conditions
17	5. Design tests 5.1 Continuous current thermal test
19	5.2 Electrical tests
23	5.3 Mechanical endurance test
24	6. Production tests 6.1 Operational tests
25	6.2 Dielectric tests
26	6.3 Insulation resistance tests
27	6.4 Current path resistance tests 6.5 Mechanical tests
28	7. Relay characteristics 7.1 General 7.2 Automatic close functions
29	7.3 Automatic trip functions
30	7.4 Tripping adjustment
31	8. Fuses and fuse mountings 8.1 Fuse provisions
33	8.2 Functional performance specifications 8.3 Fuse types 9. Rating requirements 9.1 Nameplates
34	9.2 Interrupting rating 9.3 AC voltage ratings
35	9.4 Dielectric test voltage 9.5 Control voltage 9.6 Closing voltage
36	9.7 Tripping currents 10. Mechanical performance specifications 10.1 Submersible type 10.2 Non-submersible type
37	10.3 Open-frame type 10.4 Mounting application 10.5 General requirements
41	10.6 Finish 11. Other requirements 11.1 Submersible enclosure 11.2 Non-submersible enclosure
42	11.3 Open frame enclosure 11.4 Mounting configurations
43	11.5 Network-side terminations
45	Annex A (normative) Classification of insulating materials A.1 General A.2 Insulating materials
46	A.3 Insulation systems A.4 Insulation service stresses
48	Annex B (informative) Network fuse application B.1 General B.2 Protector fuse B.3 Types of fuses
56	B.4 History
58	Annex C (informative) Pumping C.1 General C.2 Causes C.3 Effects of pumping
59	Annex D (informative) Unprotected zone in network protectors
60	Annex E (informative) Contact surface oxidation
61	Annex F (informative) Reverse current sensitivity F.1 General F.2 Reverse power levels
62	F.3 Relay settings
64	Annex G (informative) Network protector enclosures
65	Annex H (informative) Bibliography