IEEE C62.21 : 2003
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
GUIDE FOR THE APPLICATION OF SURGE VOLTAGE PROTECTIVE EQUIPMENT ON AC ROTATING MACHINERY 1000 V AND GREATER
11-09-2023
01-01-2003
1. Overview
1.1 Scope
1.2 Purpose
2. References
3. Definitions
4. The basic means of machine surge protection
4.1 The fundamental protective system
4.2 Risk analysis
4.3 Multi-turn machine impulse voltage withstand strength
5. Sources of surges
5.1 General
5.2 Remote and local origin surges
5.3 Remote origin surges
5.4 Surges from faults, local origin
5.5 Switching surges, local origin
5.6 Historical background, motor starting surges
5.7 Surges during de-energizing motors
5.8 Full-voltage motor starting, prestrike voltage
5.9 Limitations of surge capacitor protection
6. Motor surge protection
6.1 Reasons for surge protection of motors started
across-the-line (full-voltage start)
6.2 Strategies for motor surge protection
6.3 Practical calculation of full-voltage starting surges
at motor terminals
Annex A (normative) Formulas for calculators or personal computers
A.1 Surge Level, cables with no phase-to-phase coupling
A.2 Surge time constants
Annex B (informative) Bibliography
Covers the application of surge voltage protective equipment to ac rotating machines rated 1000 V and greater.
| DocumentType |
Standard
|
| PublisherName |
Institute of Electrical & Electronics Engineers
|
| Status |
Withdrawn
|
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