Skip to content
Please enter a keyword to search

  • IEEE C37.101-2006 REDLINE

    Withdrawn A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.

    IEEE Guide for Generator Ground Protection

    Available format(s):  PDF

    Withdrawn date:  12-04-2022

    Language(s):  English

    Published date:  15-11-2007

    Publisher:  Institute of Electrical & Electronics Engineers

    Add To Cart

    Table of Contents - (Show below) - (Hide below)

    1 Overview
      1.1 Scope
      1.2 Purpose
      1.3 Description of the guide
    2 Normative references
    3 Definitions, acronyms, and abbreviations
      3.1 Definitions
      3.2 Acronyms and abbreviations
    4 Summary of protection schemes
    5 Generator connections
      5.1 Example use of Table 1
    6 Generator grounding methods
      6.1 Method I - Effective high-resistance ground with a
           distribution transformer
      6.2 Method II - High-resistance ground with a neutral ground
           resistor
      6.3 Method III - Low-resistance ground with a neutral ground
           resistor
      6.4 Method IV - Low-reactance ground with a neutral ground
           reactor
      6.5 Method V - Resonant ground with a ground fault neutralizer
      6.6 Method VI - High-resistance ground with a delta-grounded-wye
           transformer
      6.7 Method VII - Medium-resistance ground with a
           delta-grounded-wye transformer
      6.8 Method VIII - Ungrounded
      6.9 Method IX - Hybrid ground (switching low resistance to
           high resistance)
    7 Protective schemes
      7.1 Scheme 1 - Ground overvoltage (complete shutdown)
      7.2 Scheme 2 - Ground overvoltage (permissive shutdown)
      7.3 Scheme 3 - Ground overvoltage exceed rated relay voltage
           (alarm and time-delay shutdown)
      7.4 Scheme 4 - Ground overvoltage exceed rated relay voltage
           (alarm)
      7.5 Scheme 5S - Start-up ground overvoltage (complete shutdown)
      7.6 Scheme 6 - Ground fault neutralizer (alarm and time-delay
           shutdown)
      7.7 Scheme 7 - Grounded wye-broken-delta VTs with ground
           overvoltage (complete shutdown)
      7.8 Scheme 8S - Start-up grounded wye-broken-delta VTs with
           ground overvoltage (complete shutdown)
      7.9 Scheme 9 - Secondary-connected CT, time-delay ground
           overcurrent (complete shutdown)
      7.10 Scheme 10 - Primary-connected CT, time-delay ground
           overcurrent (complete shutdown)
      7.11 Scheme 11 - Instantaneous ground overcurrent (alarm
           and/or complete shutdown)
      7.12 Scheme 12 - Generator leads ground overcurrent (complete
           shutdown)
      7.13 Scheme 13 - Three-wire generator leads with window CT,
           instantaneous ground overcurrent (complete shutdown)
      7.14 Scheme 14 - Four-wire generator leads with window CT,
           instantaneous ground overcurrent (complete shutdown)
      7.15 Scheme 15 - Generator percentage differential (complete
           shutdown)
      7.16 Scheme 16 - Current-polarized directional overcurrent relay
      7.17 Scheme 17 - Generator percentage differential relay on
           delta-connected generator (complete shutdown)
      7.18 Scheme 18 - 100% stator winding ground protection schemes
      7.19 Scheme 19 - Alternate stator winding protection with
           high-impedance relays
      7.20 Scheme 20 - Generator neutral overcurrent protection for
           an accidental solid ground fault
      7.21 Scheme 21 - Directional ground fault protection for
           high-resistance ground bus connected generators (multi-ground)
      7.22 Scheme 22 - Hybrid ground protection for high-resistance
           grounded bused generator and ungrounded distribution system
    8 Miscellaneous considerations
    9 Protective device function numbers
    Annex A (informative) Stator ground protection for a
            high-resistance grounded generator
    Annex B (informative) Ground protection example to determine
            the percent coverage of a high-impedance differential relay
    Annex C (informative) Glossary
    Annex D (informative) Bibliography

    Abstract - (Show below) - (Hide below)

    The guide is intended to assist protection engineers in applying relays and relaying schemes for protectionagainst stator ground faults on various generator grounding schemes.

    General Product Information - (Show below) - (Hide below)

    Committee Power System Relaying and Control
    Development Note Supersedes IEEE DRAFT C37.101. (12/2007)
    Document Type Standard
    Publisher Institute of Electrical & Electronics Engineers
    Status Withdrawn
    Supersedes

    Standards Referenced By This Book - (Show below) - (Hide below)

    IEEE DRAFT C37.95 : D6 99 DRAFT GUIDE FOR PROTECTIVE RELAYING OF UTILITY CONSUMER INTERCONNECTIONS
    IEEE 1665 : 2009 GUIDE FOR THE REWIND OF SYNCHRONOUS GENERATORS, 50 HZ AND 60 HZ, RATED 1 MVA AND ABOVE
    IEEE DRAFT C37.96 : D5 99 DRAFT GUIDE FOR AC MOTOR PROTECTION
    IEEE DRAFT 1147 : D8 2005 GUIDE FOR THE REHABILITATION OF HYDROELECTRIC POWER PLANTS
    IEEE C37.96-2012 IEEE Guide for AC Motor Protection
    IEEE C57.143-2012 IEEE Guide for Application for Monitoring Equipment to Liquid-Immersed Transformers and Components
    IEEE DRAFT C62.92.2 : 1999 DRAFT GUIDE FOR THE APPLICATION OF NEUTRAL GROUNDING IN ELECTRICAL UTILITY SYSTEMS, PART 2 - GROUNDING OF SYNCHRONOUS GENERATOR SYSTEMS
    I.S. EN ISO 14224:2016 PETROLEUM, PETROCHEMICAL AND NATURAL GAS INDUSTRIES - COLLECTION AND EXCHANGE OF RELIABILITY AND MAINTENANCE DATA FOR EQUIPMENT (ISO 14224:2016)
    IEEE DRAFT C37.102 : D8 2006 AC GENERATOR PROTECTION
    IEEE C37.102-2006 REDLINE IEEE Guide for AC Generator Protection
    IEEE 242-2001 IEEE Recommended Practice for Protection and Coordination of Industrial and Commercial Power Systems (IEEE Buff Book)
    ISO 14224:2016 Petroleum, petrochemical and natural gas industries Collection and exchange of reliability and maintenance data for equipment
    IEEE DRAFT 67 : D5 2005 GUIDE FOR THE OPERATION AND MAINTENANCE OF TURBINE GENERATORS
    IEEE C37.10-2011 REDLINE IEEE Guide for Investigation, Analysis, and Reporting of Power Circuit Breaker Failures
    IEEE 1129-2014 IEEE Guide for Online Monitoring of Large Synchronous Generators (10 MVA and Above)
    IEEE C37.12-2008 REDLINE IEEE Guide for Specifications of High-Voltage Circuit Breakers (over 1000 Volts)
    IEEE C62.92.2-1989 IEEE Guide for the Application of Neutral Grounding in Electrical Utility Systems, Part II - Grounding of Synchronous Generator Systems
    IEEE DRAFT 1010 : D10 2005 GUIDE FOR CONTROL OF HYDROELECTRIC POWER PLANTS
    IEEE 1147-2005 IEEE Guide for the Rehabilitation of Hydroelectric Power Plants
    IEEE C37.246-2017 IEEE Guide for Protection Systems of Transmission-to-Generation Interconnections
    IEEE C37.11-2014 IEEE Standard Requirements for Electrical Control for AC High-Voltage (>1000 V) Circuit Breakers
    IEEE C62.92.3-2012 IEEE Guide for the Application of Neutral Grounding in Electrical Utility Systems, Part III -Generator Auxiliary Systems
    BS EN ISO 14224:2016 Petroleum, petrochemical and natural gas industries. Collection and exchange of reliability and maintenance data for equipment
    IEEE 142-2007 IEEE Recommended Practice for Grounding of Industrial and Commercial Power Systems

    Standards Referencing This Book - (Show below) - (Hide below)

    IEEE C62.92.2-1989 IEEE Guide for the Application of Neutral Grounding in Electrical Utility Systems, Part II - Grounding of Synchronous Generator Systems
    IEEE C37.102-2006 REDLINE IEEE Guide for AC Generator Protection
    IEEE 32-1972 IEEE Standard Requirements, Terminology, and Test Procedures for Neutral Grounding Devices
    ANSI C50.10 : 1990 ROTATING ELECTRICAL MACHINERY - SYNCHRONOUS MACHINES
    IEEE C37.2-1996 IEEE Standard Electrical Power System Device Function Numbers and Contact Designations
    IEEE C37.102-1995 IEEE Guide for AC Generator Protection
    IEEE 142 : 2007 GROUNDING OF INDUSTRIAL AND COMMERCIAL POWER SYSTEMS
    View more information

    • Access your standards online with a subscription

      Features

      • Simple online access to standards, technical information and regulations
      • Critical updates of standards and customisable alerts and notifications
      • Multi - user online standards collection: secure, flexibile and cost effective