IEEE C37.14-2015

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IEEE Standard for DC (3200 V and below) Power Circuit Breakers Used in Enclosures

Published By	Publication Date	Number of Pages
IEEE	2015	80

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Description

Revision Standard – Active. Enclosed dc power circuit breakers of the stationary or drawout 32 type of one- or two-pole construction with one or more rated maximum voltages of 300 V, 325 V, 33 600 V, 800 V, 1000 V, 1200 V, 1600 V, or 3200 V for applications on dc systems having nominal 34 voltages of 250 V, 275 V, 500 V, 750 V, 850 V, 1000 V, 1500 V, or 3000 V, with general-purpose, 35 high-speed, semi-high-speed and rectifier circuit breakers; manually or power-operated; and with 36 or without electromechanical or electronic trip devices are covered in this standard. Service conditions, ratings, 37 functional components, temperature limitations and classification of insulating materials, dielectric 38 withstand voltage requirements, test procedures, and application are dealt with in this standard.

PDF Catalog

PDF Pages	PDF Title
1	IEEE Std C37.14™-2015 Front cover
3	Title page
5	Important Notices and Disclaimers Concerning IEEE Standards Documents
8	Participants
10	Introduction
13	Contents
15	IMPORTANT NOTICE 1. Overview 1.1 Scope
16	1.2 Purpose 2. Normative references
17	3. Definitions
18	4. Service conditions 5. Frame size 5.1 General 5.2 General-purpose dc power circuit breakers 5.3 High-speed dc power circuit breakers 5.4 Rectifier dc power circuit breakers
19	5.5 Semi-high-speed dc power circuit breakers 6. Ratings 6.1 Rating information 6.2 Rated maximum voltage 6.3 Rated continuous current
20	6.4 Rated peak current 6.5 Rated short-time current
21	6.6 Rated short-circuit current
22	6.7 Rated control voltage
23	7. Functional components 7.1 General
24	7.2 Nameplate(s) 7.3 Contact position indicator 7.4 Mechanical manual open and close buttons
25	7.5 Stored-energy indicator 7.6 Locking 7.7 Primary disconnecting devices 7.8 Circuit breaker bonding connection
26	8. Temperature limitations and classification of insulating materials 8.1 Temperature limits 8.2 Limits of observable temperature rise
27	8.3 Classification of insulating materials
29	9. Dielectric withstand voltage requirements 9.1 Test values 9.2 Test procedures
30	10. Design test requirements 10.1 General 10.2 Test conditions 10.3 Schedule of design tests
32	10.4 Trip device calibration check test
33	10.5 Dielectric withstand voltage test 10.6 Continuous current test
36	10.7 Short-time current test
37	10.8 Endurance tests
39	10.9 Peak current test 10.10 Short-circuit current tests
42	10.11 Load (low) current switching tests 10.12 Electromagnetic compatibility tests
43	11. Accessory device design tests 11.1 General 11.2 Alarm and auxiliary switches
45	11.3 Undervoltage trip devices
46	11.4 Other electrical accessories 11.5 Mechanical accessory devices 12. Treatment of failures within a design test sequence 12.1 General 13. Production tests 13.1 General
47	13.2 Calibration
48	13.3 Control, secondary wiring, and devices check test 13.4 Dielectric withstand voltage test 13.5 No-load operation tests
50	Annex A (informative) Bibliography
51	Annex B (normative) Preferred ratings and test circuit parameters for general-purpose dc power circuit breakers
57	Annex C (normative) Preferred ratings and test circuit parameters for high-speed, semi-high-speed, and rectifier dc power circuit breakers
63	Annex D (informative) Application guide D.1 Overview D.2 Voltage D.3 Continuous current
64	D.4 Short-circuit current
66	D.5 Application of direct current instrument shunts
67	D.6 Limiting transient arc voltage D.7 Application of circuit breakers for selective tripping
68	D.8 Application limitations relating to mechanism types
69	D.9 Service conditions affecting circuit breaker applications
72	D.10 Application of general-purpose dc power circuit breakers to motor starting and running duty D.11 Repetitive duty operations and normal maintenance
73	D.12 Application of circuit breakers without enclosures
74	Annex E (informative) Traction power technical application guide
77	Annex F (informative) Production monitoring and product retest requirements F.1 Overview F.2 Production monitoring F.3 Product retest requirements
80	Back cover