Inactive-Reserved Standard

IEEE C37.93-2004

IEEE Guide for Power System Protective Relay Applications of Audio Tones Over Voice Grade Channels

This document provides guidelines for applying audio tones over voice grade channels for power system relaying. Included are sections on transmitting and receiving equipment, leased voice grade channels, application principles, installation, and testing. The primary purpose of this document is to guide the power system user in applying, installing, and operating audio-tone protective relaying systems over voice grade channels. Secondly, it is to provide a reference for equipment manufacturers engaged in the design and application of relaying equipment and for telephone personnel engaged in providing telecommunications channels for audio-tone protective relay schemes.

Sponsor Committee
PE/PSCC - Power System Communications and Cybersecurity
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Status
Inactive-Reserved Standard
PAR Approval
1998-06-25
Superseding
C37.93-1987
Board Approval
2004-03-25
History
ANSI Approved:
2004-07-08
Published:
2004-08-23
Reaffirmed:
2010-09-30
Inactivated Date:
2021-03-25

Working Group Details

Society
IEEE Power and Energy Society
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Sponsor Committee
PE/PSCC - Power System Communications and Cybersecurity
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Working Group
ADMIN_8224 - Project Administration_8224
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No Active Projects
No Active Standards
No Superseded Standards
No Inactive-Withdrawn Standards
No Inactive-Reserved Standards
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