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IEEE C37.17-2012

$54.17

IEEE Standard for Trip Systems for Low-Voltage (1000 V and below) AC and General Purpose (1500 V and below) DC Power Circuit Breakers

Published By Publication Date Number of Pages
IEEE 2012
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Revision Standard – Active. Requirements for direct acting current and voltage protective functions of direct-acting overcurrent electromechanical trip devices, direct-acting overcurrent electronic trip systems, reverse-current trip systems for dc circuit breakers, and undervoltage trip devices that are integral with low-voltage ac (1000 V and below) and general purpose low-voltage dc (1500 and below) power circuit breakers covered by IEEE Std C37.13(TM), IEEE Std C37.14(TM), and IEEE Std C37.16(TM) are included in this standard. Additional information, communication and/or additional internal or external protective functions or devices are not covered (but also not restricted) by this standard.

PDF Catalog

PDF Pages PDF Title
1 IEEE Std C17.17-2012 Front Cover
3 Title Page
6 Notice to users
Laws and regulations
Copyrights
Updating of IEEE documents
Errata
7 Patents
8 Participants
10 Introduction
11 Contents
13 Important Notice
1. Overview
1.1 Scope
14 1.2 Purpose
2. Normative references
15 3. Definitions
16 4. Preferred trip device current ratings or settings (amperes)
17 5. Types and response of direct-acting overcurrent trip functions
5.1 General
5.2 Long-time delay
5.3 Short-time delay
5.4 Instantaneous
5.5 Neutral overload
18 5.6 Ground fault
5.7 Functions modifying the response of direct-acting overcurrent trip functions
6. Calibration of direct-acting overcurrent trip functions
6.1 General
19 6.2 Long-time delay trip functions (electromechanical devices only)
6.3 Long-time delay trip functions (electronic devices only)
6.4 Short-time delay trip functions
6.5 Instantaneous trip functions (high range)
6.6 Instantaneous trip functions (low range electromechanical devices only)
6.7 Neutral trip functions
20 6.8 Ground fault trip functions
7. Delay times of direct-acting overcurrent trip functions
7.1 Long-time-delay trip functions
7.2 Short-time-delay trip functions
7.3 Short-time-delay ground fault trip function
22 8. Reverse-current trip devices for general purpose dc circuit breakers
9. Undervoltage trip devices
9.1 General
9.2 Drop-out voltage range
23 9.3 Pickup or seal in voltage
9.4 Maximum operating voltage
10. Tests
11. Software process verification
24 Annex A (informative) Illustrative time overcurrent characteristics
27 Annex B (informative) Bibliography
IEEE C37.17-2012
$54.17