Errors identified in IEEE Std C62.21-2003 are addressed in this corrigendum.
- Sponsor Committee
- PE/SPDC - Surge Protective Devices Committee
Learn More About PE/SPDC - Surge Protective Devices Committee - Status
- Inactive-Reserved Standard
- PAR Approval
- 2007-05-07
- Board Approval
- 2008-09-26
- History
-
- ANSI Approved:
- 2009-02-02
- Published:
- 2008-11-26
- Reaffirmed:
- 2009-03-19
- Inactivated Date:
- 2021-03-25
Working Group Details
- Society
- IEEE Power and Energy Society
Learn More About IEEE Power and Energy Society - Sponsor Committee
- PE/SPDC - Surge Protective Devices Committee
Learn More About PE/SPDC - Surge Protective Devices Committee - Working Group
-
HV3.4.9 - 3.4.9 Application Guide for Surge Voltage Protective Equipment on AC Rotating Machinery WG
- IEEE Program Manager
- Christian Orlando
Contact Christian Orlando - Working Group Chair
- Andrew Steffen
Other Activities From This Working Group
Current projects that have been authorized by the IEEE SA Standards Board to develop a standard.
PC62.21
Guide for the Application of Surge Voltage Protective Equipment on AC Rotating Machinery 1000 Volts and Greater
This guide covers the application of surge voltage protective equipment to AC rotating machines rated 1000 V and greater. The guide does not cover motors applied in solid-state switched adjustable speed drives. This guide covers the insulation surge withstand strength of motors and generators with windings having form-wound multi-turn coils and the application of surge protection to form-wound multi-turn coil motors.
Standards approved by the IEEE SA Standards Board that are within the 10-year lifecycle.
No Active Standards
These standards have been replaced with a revised version of the standard, or by a compilation of the original active standard and all its existing amendments, corrigenda, and errata.
No Superseded Standards
These standards have been removed from active status through a ballot where the standard is made inactive as a consensus decision of a balloting group.
No Inactive-Withdrawn Standards
These standards are removed from active status through an administrative process for standards that have not undergone a revision process within 10 years.
C62.21-2003
IEEE Guide for the Application of Surge Voltage Protective Equipment on AC Rotating Machinery 1000 Volts and Greater
Project scope: This guide covers the application of surge voltage protective equipment to AC rotating machines rated 1000 volts and greater. The guide does not cover motors applied in solid-state switched adjustable speed drives. Part 1 covers the insulation surge withstand strength of motors and generators with windings having form-wound multi-turn coils and the application of surge protection to form-wound multi-turn coil motors. Part 2 will cover application of surge protection to generators with form-wound multi-turn coils, plus insulation surge withstand strength and surge protection of single-turn coil generators and motors. Project purpose: This guide is intended to aid engineers at all levels of surge protection knowledge in deciding whether particular machines should have surge protection. The guide may be used in estimating the surge withstand capability and switching surge exposure of ac rotating machinery in usual, not extreme exposure, installations. The manufacturer should be contacted for specific insulation surge voltage withstand values for machinery of particular interest or importance. For those machines which should be protected, the purpose is to provide guidance in selecting and applying the protective devices. A simple look-up method using tables and a graph is provided for quick estimation of surge rise times and surge voltage levels, and for general use where accuracies in the order of 10% to 15% are acceptable. This method is based on single-phase analysis, neglecting the influence of ground mode surge propagation. A more complex method is provided by formulas to model the three-phase and ground mode propagation. The formulas can be used with calculators or personal computers.