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
Learn More - 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
Learn More - Sponsor Committee
- PE/PSCC - Power System Communications and Cybersecurity
Learn More - 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No Superseded Standards
No Inactive-Withdrawn Standards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